statistical summaries of streamflow data in oregon: … · this is the second of two volumes of...

STATISTICAL SUMMARIES OF STREAMFLOW DATA IN OREGON:

VOLUME 2--ANNUAL LOW AND HIGH FLOW, AND

INSTANTANEOUS PEAK FLOWBy Roy E. Wcllman, I Janice M. Gordon,, and Robert L. Moffattl

U.S. GEOLOGICAL SURVEY

Open-File Report 93-63

Prepared in cooperation with the

OREGON WATER RESOURCES DEPARTMENT

Portland, Oregon 1993

U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, SecretaryU.S. GEOLOGICAL SURVEY Dallas L. Peck, Director

For additional information Copies of this report canwrite to: be purchased from:

District Chief U.S. Geological SurveyU.S. Geological Survey Books and Open-File Reports Section10615 S.E. Cherry Blossom Drive Federal Center, Box 25425Portland, Oregon 97216 Denver, CO 80225

11

CONTENTS

Abstract ------------------------------------------------------Introduction -------------------------------------------------Streamflow records --------------------------------------------Statistical summary tables ------------------------------------

Frequency curves -----------------------------------------Magnitude and probability of low flows -------------------Magnitude and probability of high flows ------------------Magnitude and probability of instantaneous peak flows ----

Selected references -------------------------------------------Gaging-station descriptions and statistical tables ------------Index of gaging stations --------------------------------------

Page

1112233357

399

ILLUSTRATIONS [Plate is in pocket]

Plate 1. Map showing location of streamflow gaging stations in Oregon.

CONVERSION FACTORS AND VERTICAL DATUM

To convert from To Multiply by

kilometer (km)millimeter (mm)square kilometer (km2 )cubic meter per second (m3 /s)

mileinchsquare milecubic foot per second

0.62140.039370.3861

35.31

SEA LEVEL: In this report "sea level" refers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929)--a geodetic datum derived from a general adjustment of the first order level nets of both the United States and Canada, formerly called Sea Level Datum of 1929.

111

STATISTICAL SUMMARIES OF STREAMFLOW DATA IN OREGON: VOLUME 2 -- ANNUAL LOW AND HIGH FLOW AND INSTANTANEOUS PEAK FLOW

By Roy E. Wellman, Janice M. Gordon, and Robert L. Moffatt

ABSTRACT

Statistical summaries of streamflow data at 358 stream-gaging sites are presented to aid in appraising the hydrology of river basins in Oregon. Records for 36 stream-gaging stations were compiled into separate periods because of changes in streamflow regulation during the period of data collection. Statistical summaries for the periods before and after regulation are presented for comparison.

A brief description is given on the physical and operational features for each stream-gaging station. Tables of annual low-flow and high-flow frequency data, and tables of instantaneous peak discharges for selected recurrence intervals also are shown.

INTRODUCTION

This is the second of two volumes of statistical summaries of streamflow data collected at stream-gaging stations in Oregon. Volume 1 contains statistical summaries of monthly and annual flow, and monthly and annual flow-duration information (Moffatt and others, 1990). This report contains annual low-flow and high-flow frequency analyses, and flood- frequency summaries.

The purpose of this report is to provide streamflow characteristics, based on historical data, to water-resource managers. This report was prepared in cooperation with the Oregon Water Resources Department (OWRD). The locations of stream-gaging stations are shown on plate 1.

STREAMFLOW RECORDS

A brief description of each gaging station outlining the physical and operational features of the site precedes the statistical summaries. Except for paragraphs describing revised records and extremes for a specific year, the station descriptions are identical to the 1987 published version in the annual release "Water Resources Data - Oregon" (U.S. Geological Survey, 1987 volumes 1 and 2). A detailed explanation of the station description and a definition of terms is given in that report. Data from active and discontinued gaging stations having a minimum of 10 years of daily mean-discharge values are shown in this report. For active stations, data through the 1987 water year are included in this report.

In addition to requiring 10 years of daily record to be included in these analyses, gaging-station records had to satisfy one of two criteria. The data had to be hydrologically transferable (for use in estimating streamflow in ungaged basins), or the data had to be a significant indicator of flow availability. For example, data from a gaging station at the outlet of a natural lake may have little hydrologic transferability

(owing to storage of water in the lake). The data, however, would be a good indication of low-flow availability as well as flood events, and would be included without the peak-low analyses.

The natural flow of a stream may be altered by the construction of a dam, an irrigation diversion, or by the augmentation of flow by transbasin diversions; If drainage basin conditions changed during the operation of a gaging station, statistical summaries that reflect both natural and altered states of flow are provided when there are at least 10 years of data for each basin condition.

STATISTICAL SUMMARY TABLES

The tables of statistical analyses include magnitude and probabilities of non-exceedance of low flows in nine duration classes, magnitude and probabilities of exceedances of high flows in seven duration classes, and magnitude and probabilities of exceedances of instantaneous peak flows. The period of record shown in the heading is the first and last water year for which daily mean discharge values are available, and does not necessarily indicate continuous record (see the PERIOD OF RECORD paragraph in the station description for fragmentary records). The value "n" shown in the tables represents the number of years of systematic record used in the respective computations of flow frequency. The statistical output in the low-flow and high-flow tables were generated by using computer programs available from the U.S. Geological Survey's (USGS) WATSTORE (National Water Data Storage and Retrieval System) and USGS's computer software ANNIE (Lumb and others, 1989). The statistical outputin the instantaneous peak-flow tables were generated from annual instantaneous peak discharges using the USGS's computer software ANNIE.

Frequency Curves

A frequency curve is a graphical representation of the cumulative distribution of a random population of data. If a time series is used, magnitude is related to some recurrence interval. These populations, for this report, are the n-day (n equals number of days) high flow and n-day low flow mean values generated from daily mean flow values and the annual instantaneous peak flow. If individuals in the population are random and homogeneous, the frequency curve can be used as a probability curve, estimating a probability of exceedance or non-exceedance. Frequency curves are applied to a wide variety of water resource problems. High flow frequency curves are used for flood-plain zoning and the design of industrial and municipal water-supply systems, irrigations supplies, and as guidelines for minimal flow requirements. Many other applications have been made. Guidelines outlined by Hardison (1969) were used to determine the extension of frequency curves. The recurrence interval was extended to 25 years if the minimum years of station record equaled 15 years; 50 years if the minimum years of station record equaled 20 years; and 100 years if the minimum years of station record equaled 25 years.

Magnitude and Probability of Low Flows

The computation period for low-flow analysis is based on a climatic year which ends on March 31, thus assuring the low-flow season will be complete within a twelve-month period. The annual events of various duration were evaluated for randomness with Kendall Tau statistics, available in the ANNIE (Lumb and others, 1989), as a pre-processing step to frequency analysis 1989). Stations with Kendall Tau statistics indicating a 5 percent or less chance of annual flow events being independent were further studied to determine if the time periods were suitable for frequency analysis. Some stations exhibited apparent trends in the data as a result of climatic variability. Time periods were adjusted only if land use changes in the watershed could be verified.

The tabulations show annual-minimum mean flows for averaging periods of 1, 3, 7, 14, 30, 60, 90, 120, and 183 consecutive days (n-day mean flows) for recurrence intervals of 2, 5, 10, 20, 50, and 100 years. The associated annual non-exceedance probabilities are 50, 20, 10, 5, 2, and 1 percent. The annual minima are based on a climatic year. Recurrence intervals for low flows represent the average time between occurrences of annual minimum flows less than the stated flow magnitudes. Non-exceedance probability is the probability, or chance, expressed as a percentage, that the annual minimum flow will be less than the stated magnitude in any given year. For example, the low flow during a 30-day period might not be exceeded on the average of once every 50 years, and would have a 2 percent chance of not being exceeded in any given year.

Magnitude and Probability of High Flows

The computation period is based on a 12-month water year which ends September 30, after the occurrence of seasonal high-water events. Annual events of various durations were evaluated for randomness with Kendall Tau statistics, available in the ANNIE (Lumb and others, 1989) software package, as a pre-processing step to frequency analysis.

The tabulations show annual maximum mean flows for averaging periods of 1, 3, 7, 15, 30, 60, and 90 consecutive days (n-day mean flows) for recurrence intervals of 2, 5, 10, 25, 50, and 100 years. The associated annual exceedance probabilities are 50, 20, 10, 4, 2, and 1 percent. The annual minima are based on a climatic year. Recurrence intervals for high flows represent the average length of time between occurrences of annual high flows greater than the stated flow magnitudes. Exceedance probability is the probability, or chance, expressed as a percentage, that the annual high flow will be greater than the stated magnitude in any given year. Computed frequency points were checked to assure the 1-day high flows do not exceed peak-flow frequency points.

Magnitude and Probability of Instantaneous Peak Flows

The magnitude of instantaneous peak flows are listed in the statistical-summary tables for selected recurrence intervals as computed from a log-Pearson Type III probability distribution of peak flows using guidelines from Bulletin 17B of the U.S. Water Resources Council (1981). The years of systematic record were the determinants for choosing the

coefficient of skew computational method. For stations having less than 20 years of data, the frequency curve was based on a generalized skew coefficient. For stations having more than 20 years of data, the skew coefficient was determined by weighing the generalized skew against the skew of the systematic record of annual peaks as recommended by Bulletin 17B of the U.S. Water Resources Council (1981). The skew used for a particular station is shown at the bottom of the table. Procedures for including historic flood information were used where applicable. Historical peaks are data outside the period or periods of systematic data.

Major floods in western Oregon occur between October and March, when the majority of annual precipitation falls as winter rainstorms. In eastern Oregon, major floods can result from winter rainstorms, from spring melting of the winter snowpack, or from summer convective storms (U.S. Geological Survey, 1991). Western Oregon flood events were considered to result from a singular cause, winter rainstorms, and were treated as one population. Eastern Oregon flood events, resulting from different causes, could not be identified and separated objectively, and were not analyzed using a mixed-population analyses.

Flood-frequency statistics at gaging stations immediately downstream from dams and reservoirs are computed only for the non- regulated period, assuming there were 10 years of record available for the analysis.

SELECTED REFERENCES

Bartholoma, S.D., 1989, Daily-Values monthly and annual statistics: Section 11.1 of National Water Information System User's Manual, Volume 2, Chapter 3. Automated Data Processing System (ADAPS): U.S. Geological Survey Open-File Report 90-116, Version 90.1, p. 11-1 to 11-10. Compiled by G.O. Dempster, Jr.

Farmer, M.L., and Terry, J.E., 1989, Daily-values duration and N-daylow/high value analysis: section 11.2 of National Water Information System Users's Manual, Volume 2, Chapter 3. Automated Data Processing System (ADAPS): U.S. Geological Survey Open-File Report 90-116, Version 90.1, p. 11-11 to 11-17. Compiled by G.O. Dempster, Jr.

Hardison, C., 1969, Accuracy of streamflow characteristics: U.S. Geological Professional Paper 650-D, p. D210-D214.

Lumb, A.M., Kittle, J.L., and Flynn, K.M., 1989, Users manual for ANNIE, a computer program for interactive hydrologic analysis and data management: U.S. Geological Survey Water-Resources Investigations 89-4080, 162 p.

Meeks, W.C., 1977, Daily values statistics (Program A969 and A193),chapter IV, section G, of WATSTORE user's guide: U.S. Geological Survey Open-File Report 75-426, v. 1, p. G-l to G-37.

Moffatt, R.L., Wellman, R.E., and Gordon, J.M., 1990, Statisticalsummaries of streamflow data in Oregon: U.S. Geological Survey Open-File Report 90-118, v. 1, 413 p.

U.S. Geological Survey, 1987, Water resources data, Oregon, water year 1987, volume 1. Eastern Oregon; Portland, Oregon, U.S. Geological Survey Water-Data Report OR-87-1, 222 p.

___1987, Water resources data, Oregon, water year 1987, volume 2.Western Oregon; Portland, Oregon, U.S. Geological Survey Water-Data Report OR-87-2, 398 p.

___1991, National water summary 1988-89--Hydrologic Events and Floods and Droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p.

U.S. Water Resources Council, 1981, Guidelines for determining flood flow frequency, Bulletin 17B: Washington, D.C., U.S. Government Printing Office, 28 p.

THE GREAT BASIN

WARNER LAKES BASIN

10366000 TWENTYMILE CREEK NEAR ADEL, OR

LOCATION. Lat 42°04'20", long 119°57'42", in SW 1/4 NW 1/4 sec.25, T.40 S., R.23 E., Lake County, Hydrologic Unit 17120007, on left bank. 1.5 mi downstream from Twelvemile Creek, and 8 mi southwest of Adel.

DRAINAGE AREA. 194 mi 2 , including 46 mi 2 in Cowhead Lake area.

PERIOD OF RECORD. March 1910 to July 1916, December 1917 to September 1919, and March 1921 to June 1922 (published as "near Warner Lake"), September 1940 to November 1944, March 1945 to 1987.

REVISED RECORDS. WSP 1090: 1945. WSP 1514: 1951-53, 1954(M), WDR OR-85-1: 1963(P), 1965 (P), 1970-71 (P).

GAGE. Water-stage recorder and concrete control. Datum of gage is 4,560.83 ft above National Geodetic Vertical Datum of 1929. Prior to Sept. 21, 1940, nonrecording gage or water-stage recorder at sites within 1 mi downstream at various datums. Sept. 21, 1940, to Nov. 30, 1944, water-stage recorder at site 1.8 mi upstream at different datums. Mar. 12, 1945, to June 28, 1952, water-stage recorder at site 70 ft upstream at datum 0.88 fthigher.

REMARKS.--Some regulation by pumpage from Cowhead Lake. Diversions in Oregon for irrigation upstream from station; considerable diversions for irrigation in Cowhead Lake area in California.

AVERAGE DISCHARGE. 52 years (water years 1911-15, 1919, 1941-44, 1946-87), 54.1 ftVs, 39,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 10,400 ftVs Feb. 18, 1986, gage height, 16.94 ft, on basis of slope-area measurement; no flow at times.

STATISTICAL SUMMARIES

[n = number of values used to compute statistics]

MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW BASED ON PERIOD OF RECORD 1946-1987

PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

42 4242424242424242

DISCHARGE, IN FT 3 /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

250%

2, 2223,3,3,4.5,

.1

.2

.4

.7

.0

.2

.6

.1

.5

520%

1 11.122233

.2

.3

.6

.8

.1

.4

.7

.1

.9

1010%

0.81.01.21.41.72.12.42.73.5

205%

0.6 0.70.91.21.41.82.22.43.2

50

0. 0.0,0,1,1,1,23,

2%

.4

.5,7.9.1.6.9,2.0

100

0 00011122

1%

.3

.4

.6

.8

.0

.4

.8

.0

.8

MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW BASED ON PERIOD OF RECORD 1911-1987

PERIOD (CONSECUTIVEDAYS)

1 37

15306090

DISCHARGE, IN FT 3/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL

EXCEEDANCE PROBABILITY, IN PERCENT

n

52 525252525252

250%

915 657468329238170146

520%

1810 1310915621432293238

1010%

2440 17601210806548361285

254%

3220 229015501010672430330

502%

3780 264017701140747469355

1001%

4300 297019701260810501374

MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW BASED ON PERIOD OF RECORD 1911-1987

DISCHARGE, IN FT /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = 58 historical n = 0 Weighted skew = 0.043

WARNER LAKES BASIN

10370000 CAMAS CREEK NEAR LAKEVIEW, OR

LOCATION.~Lat 42°12'59", Long 120°06'05", in SE 1/4 NE 1/4 sec.3, T.39 S., R.22 E. r Lake County, on left bank 0.2 mi downstream from Blue Creek and 12 mi east of Lakeview.

DRAINAGE AREA. 63 mi 2 , approximately.

PERIOD OF RECORD. September 1912 to November 1914, March to May 1915, December 1943 to September 1973.

GAGE. Water-stage recorder. Datum of gage is 5,472.41 ft above National Geodetic Vertical Datum of 1929 (State Highway Department bench mark). Sept. 11, 1912, to May 9, 1915, water-stage recorder or nonrecording gage at site 500 ft upstream at different datum.

REMARKS. No regulation. Diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 25 years (1912-14, 1950-73), 46.6 ft 3 /s, 33,760 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,190 ft 3/s Dec. 23, 1964, gage height, 7.32 ft, from rating curve extended above 410 ft 3 /s on basis of slope-area measurement of peak flow; minimum, 0.90 ft 3 /s Aug. 16, 1960.


(n = number of values used to compute statistics]


PERIOD (CON SECUTIVEDAYS)

1 37

14306090

120183

n

232323232323232323

DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

250%

3. 3,3,3,4,4,4,5,8

,4.5.6,8,0,4.9.6.4

520*

2, 2,2,2,2,23,3,5,

,1 ,2.2.4,6,9.2.7.3

10 2010%

1 11122224

.6

.6

.7

.8

.0

.3

.5

.9

.0

1, 1,1 ,

1 ,1,1,2,2,3

5%

.2

.3

.3

.4,6.8.1.3.2

50

0 01111112

2%

.9

.9

.0

.1

.2

.4

.6

.8

.4

1001%

_ _



1 37

15306090

DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

25 252525252525

250%

373 336292243204157127

520%

633541440348290224180

1010%

868 706544416341264211

254%

1250 951683497398309245

502%

1610 1160791556436339267

1001%

2050 1400902613471366287



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

Systematic n = 26 historical n Weighted skew = 0.523

WARNER LAKES BASIN

10371000 DRAKE CREEK NEAR ADEL, OR.

LOCATION. Lat 42°12'00", Long 120°00'41", in NE 1/4 SW 1/4 sec. 9, T.39 S. r R.23 E., Lake County, on right bank 800 ft downstream from highway bridge and Parsnip Creek, 1.0 mi upstream from mouth, and 6.5 mi west of Adel.

DRAINAGE AREA. 67 mi2 , approximately.

PERIOD OF RECORD. March to May 1915, December 1922 to May 1923, December 1949 to December 1964, October 1975 to September 1973.

GAGE. Water-stage recorder. Datum of gage is 5,075.94 ft above National Geodetic Vertical Datum of 1929 (State Highway Department bench mark). Mar. 18 to May 10, 1915 and Dec. 21, 1922, to May 9, 1923, nonrecording gage at site 800 ft upstream at different datums. Dec. 16, 1949, to June 21, 1951, at site 1,300 ft upstream at different datum. June 22, 1951, to Dec. 23, 1964, at site 20 ft upstream at datum 0.48 ft higher.

REMARKS. Some regulation by two reservoirs upstream from station with combined capacity of 436 acre-ft. Diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,210 ft 3/s Dec. 23, 1964, gage height, 8.9 ft, present datum, result of slope-area measurement; minimum, 0.40 ft /s Jan. 11, 1963, result of freezeup.


[n - number of values used to compute statistics]



1 37

14306090

120183

n

20 2020202020202020


250%

3,4,4,4,4,5,5,5,6,

.8

.0

.2,5,9.4,7.9.1

520%

2. 2,3.3,3,4.4 .4.4 .

.3 ,8.0,3,6,02,4,6

1010%

1. 22,233,3,3,4.

.7

.3

.5

.8

.0

.4

.6

.7

.0

205%

1.3 2.02.12.42.62.93.13.23.5

50

0,1,1,222,2,2,3,

2%

.9 ,6,8,0.2,4.6.7,0

1001%

--



1 37

15306090

DISCHARGE, IN FT 3 /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

22 222222222222

250%

23817011778523630

520%

6094112721781127055

1010%

953 6194032641629674

254%

1490 924593390237132100

502%

1950 1170746495299161120

1001%

:: MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW

BASED ON PERIOD OF RECORD 1951-1973


1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

229 564 2350 4030

Systematic n - Weighted skew

23 historical 0.117

WARNER LAKES BASIN

10371500 DEEP CREEK ABOVE ADEL, OR

LOCATION.-- Lat 42°11'21", long 120°00'02", in SW 1/4 NW 1/4 sec.15, T.39 S., R.23 E., Lake County, Hydrologic Unit 17120007, on left bank 700 ft downstream from Drake Creek and 5 mi west of Adel.

DRAINAGE AREA. 249 mi 2 .

PERIOD OF RECORD. September 1922 to September 1923, October 1929 to 1987. Monthly discharge only October 1929 to September 1932, published in WSP 1314.

REVISED RECORDS.--WDR OR-83-1: 1979(M), 1980(M,P), 1982(M,P).

GAGE. Water-stage recorder. Datum of gage is 4,980.34 ft above National Geodetic Vertical Datum of 1929 (State Highway Department bench mark). Sept. 8 to Dec. 20, 1922, nonrecording gage. Dec. 21, 1922, to Sept. 30, 1923, and Oct. 11, 1929, to Dec. 23, 1964, water-stage recorder at site 700 ft downstream at different datums. Jan. 20 to Sept. 30, 1965, nonrecording gage at site 2,000 ft downstream at different datum.


AVERAGE DISCHARGE. 59 years, 134 ftVs, 97,080 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 9,420 ft 3/s Dec. 23, 1964, gage height, 10.64 ft, fromfloodmark, from rating curve extended above 1,100 ft /s on basis of slope-area measurement of peak flow at gage height 7.3 ft; minimum discharge, 1.7 ftVs July 20, 27-29, 1934.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

54 5454545454545454

DISCHARGE, IN FT 3 /S, FOR INDICATED RECURRENCE

INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

250%

9.6 9.810101112141725

520%

5.6 5.75.96.06.57.48.61116

1010%

4.1 4 .24.34.44.85.56.48.012

205%

3.1 3.23.33.43.74.25.06.29.6

50

2 22223347

2%

.3

.3

.3

.4

.7

.1

.6

.5

.4

100

1,1,1.2,222,3,6,

1%

.8

.8

.9

.0

.1

.5

.9

.6

.2



1 37

15306090

DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCE

INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

n

56 565656565656

250%

1060 906757636541449375

520%

2000 15601200963804651542

1010%

2790 203014801150950753627

254%

3950 2640181013501100852711

502%

4940 3100204014801200909760

1001%

6040 3570225015901280954800



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

629 1260 2530 3660


10

WARNER LAKES BASIN

10378500 HONEY CREEK NEAR PLUSH, OR

LOCATION. Lat 42°25'33", long 119°55'23", in SW 1/4 SW 1/4 sec.20, T.36 S., R.24 E., Lake County, Hydrologic Unit 17120007, on right bank 700 ft upstream from mouth of canyon, 1.4 mi northwest of Plush, and 4 mi downstream from Twelvemile Creek.


PERIOD OF RECORD. May 1909 to September 1914 (prior to January 1910, gage heights only), March to May 1915, March to September 1921, March to June 1922, May 1930 to 1987. Monthly discharge only May 1930 to September 1949, published in WSP 1314.

REVISED RECORDS. WSP 1564: 1911-12. WSP 1714: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 4,552.80 ft above National Geodetic Vertical Datum of 1929. Dec. 24, 1964, to Sept. 30, 1965, nonrecording gage at site 100 ft downstream at different datums. See WSP 1927 for history of changes prior to Dec. 24, 1964.

REMARKS. Slight regulation by five small reservoirs, combined capacity, 870 acre-ft. Diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 61 years (water years 1911-14, 1931-87), 31.0 ft 3 /s, 22,460 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maxiumum discharge, 11,000 ft 3 /s Dec. 23, 1964, gage height, 13.4 ft, from floodmark, from rating curve extended above 250 ft /s on basis of slope-area measurements at gage height 10.46 ft and of peak flow; no flow at times.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

40 4040404040404040


250%

0.3 0.30.40.40.60.91.32.04.1

520%

0 00000002

.2

.2

.2

.2

.3

.4

.6

.9

.2

1010%

0 00000001

.1

. 1

.1

.2

.2

.3

.4

.6

.5

205%

0.1 0.10.10.10.20.20.30.41.1

50

0. 0.0.0.0,0,0.0.0,

2%

.1 . 1,1,1,1, 1,2,3,8

100

0 00,0,000,0,0

1%

.1

.1

.1

.1

.1

.1

.1

.2

.6



1 37

15306090



n

42 424242424242

250%

333 27522017914711697

520%

721 533398302239187155

1010%

1060 722515374287226186

254%

1570 968655449332264217

502%

2000 1150750495357287235

1001%

2480 1330837533376305249



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

4600 6240

Systematic n = 66 historical n Weighted skew = -0.009

11

ABERT LAKE BASIN

10384000 CHEWAUCAN RIVER NEAR PAISLEY, OR

LOCATION.~Lat 42°41'05«, long 120°34'08", in SW 1/4 NW 1/4 sec.26, T.33 S., R.18 E., Lake County, Hydrologic Unit 17120006, on left bank 1.2 mi downstream from Mill Creek and 1.4 mi southwest of Paisley.


PERIOD OF RECORD. April 1912 to September 1921, May 1924 to 1987. Published as "above Conn ditch, nearPaisley" April to September 1912 and May 1924 to September 1955, as "above Mill Creek, near Paisley" October1912 to December 1913, and as "at Chewaucan Land & Cattle Co.'s gage, near Paisley" January to September 1914.

REVISED RECORDS.--WSP 860: Drainage area. WSP 1927: 1957-59.

GAGE. Water-stage recorder. Datum of gage is 4,430 ft above National Geodetic Vertical Datum of 1929 (river-profile survey). See WSP 1734 for history of changes prior to Oct. 6, 1956.


AVERAGE DISCHARGE. 72 years, 148 ft 3 /s, 107,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,490 ft 3 /s Dec. 22, 1964, gage height, 8.35 ft, from rating curve extended above 900 ft /s on basis of slope-area measurement of peak flow; no flow for part of each day Dec. 7, 1927, Dec. 12, 1932, result of freezeup.





1 37

14306090

120183


n

33 3333333333333333

250%

23 2425272931343846

520%

161718192124273037

1010%

13 1415161821232733

205%

11 1112141518212430

502%

8.99.110111216182227

1001%

7.7 7.88.69.71114172125



1 37

15306090



n

63 636363636363

250%

816 753682612541439361

520%

1450 12801100954832680558

1010%

1910 163013501140992818673

254%

2540 2060164013401160967801

502%

3030 23701820146012601060884

1001%

3530 26601980157013401140957



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1680

Systematic n « 63 Weighted skew =

historical n 0.143

12

SUMMER LAKE BASIN

10388001 ANA RIVER NEAR SUMMER LAKE, OR

LOCATION. Lat 42°59'42" (revised), long 120°44'54" (revised), in SE 1/4 sec.6, T.30 S., R.17 E., Lake County, Hydrologlc Unit 17120005, on left bank. 300 ft downstream from diversion dam and 2.0 mi northeast of town of Summer Lake.

DRAINAGE AREA. Indeterminate; Ana River Springs, source of the stream located three-quarters of a mile upstream from station, are flooded by pondage behind diversion dam.

PERIOD OF RECORD. October 1929 to September 1939 (river only); June to September 1928, April 1931 to July 1938, and April 1940 to September 1942 (irrigation season records for Summer Lake Canal only); June 1951 to current year. Prior to June 1951 monthly discharge only, published in WSP 1314.

GAGE. Water-stage recorder. Elevation of gage is 4,160 ft from plans of Ana River diversion dam. Oct. 1, 1929, to Sept. 30, 1939, at site 80 ft downstream at different datum.

REMARKS. All records presented herein include flow in Summer Lake Canal which diverts 300 ft upstream from station for irrigation of lands along west side of Summer Lake. Flow regulated by gates at diversion dam.

AVERAGE DISCHARGE. 39 years (water years 1931-32, 1936, 1952-87), 90.8 ft 3 /s, 65,780 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 188 ft 3 /s Dec. 22, 1964, gage height, 2.81 ft, no flow in canal; minimum discharge, 1.0 ft 3 /s Jan. 21, 22, 1970; minimum daily, 3.0 ft 3 /s Oct. 31, 1970.





1 37

14306090

120183


n

15 1515151515151515

250%

58 6368727781828384

520%

50 5560687579808183

1010%

46 5056677478798183

205%

42 4553667377798083

50 1002% 1%

:: :: --MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

17 171717171717

250%

113 11010499969493

520%

126 1181111051029997

1010%

134 123115109106103101

254%

143 128119114111108105

50 1002% 1%

:: :: . MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW

BASED ON PERIOD OF RECORD


1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

Systematic n = historical n Generalized 17b skew = --

13

SILVER LAKE BASIN

10390001 SILVER CREEK NEAR SILVER LAKE, OR

LOCATION. Lat 43°06'50", long 121°03'59" in NE 1/4 SW 1/4 sec.28, T.28 S., R.14 E., Lake County, Hydrologic Unit 17120005, on right bank. 1.5 mi downstream from diversion dam of Silver Lake Irrigation District, 1.5 mi southwest of town of Silver Lake, and 3 mi upstream from Bridge Creek.

DRAINAGE AREA.--180 mi 2 , approximately.

PERIOD OF RECORD. January 1905 to March 1907, January 1909 to September 1927, February to December 1928, February 1929 to 1987.

REVISED RECORDS. WSP 1564: 1906, 1910, 1921(M). WSP 1734: Drainage area.

GAGE.--Water-stage recorder. Concrete control since Sept. 15, 1932. Datum of gage is 4,361.22 ft above National Geodetic Vertical Datum of 1929. Prior to May 24, 1932, nonrecording gage or water-stage recorder at practically same location at datum 1.00 ft higher, or nonrecording gage at diversion dam outlet 1.5 mi upstream at different datum.

REMARKS. Flow regulated by reservoir, capacity, 800 acre-ft, 1.5 mi upstream from station and by Thompson Valley Reservoir, capacity, 17,400 acre-ft, 11 mi upstream from station. Records given herein include flow in Silver Lake Irrigation District Canal which diverts 1.5 mi upstream from station. No record of diversion October 1943 to September 1965.

AVERAGE DISCHARGE. 75 years (water years 1906, 1910-27, 1930-41, 1944-87), 31.7 ft 3 /s, 22,970 acre-ft/yr, including diversion by Silver Lake Irrigation District Canal.

EXTREMES FOR PERIOD OF RECORD. Creek only, maximum discharge, 1,800 ft 3 /s Mar. 20, 1907, gage height, 10.08 ft, present datum, from rating curve extended above 700 ftVs; maximum gage height, 10.3 ft Dec. 22, 1964; no flow at times in 1931-32, 1934, 1937.

Combined flow, maximum discharge, 1,800 ft 3 /s Mar. 20, 1907, gage height, 10.08 ft, present datum, from rating curve extended above 700 ft 3 /s; maximum gage height, 10.3 ft Dec. 22, 1964; no flow at times in 1931-32, 1934, 1937.





1 37

14306090

120183

n

21 2121212121212121

DISCHARGE; IN FT3 /s, FOR INDICATED RECURRENCEINTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

250%

2.3.3,3.4,45,6,9,

, 9.1.4.7.0.9.6.8,5

520%

1. 1.1.1.2.2.3.4,6.

,4 .5.7,9.2.9.5.2,1

10 2010%

0, 0,1.1,1,2.2,3,4,

.9

.9

.1

.3

. 6

.2

.7

.2

.8

0. 0,0,0.1,1.2.2,3.

5%

.6

.6

.7, 9,2.7.1.5.9

502%

0.40.40.50.60.91.31.61.93.1

1001%

::~- --MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

22 222222222222

250%

203 19317314612510388

520%

423 390336272221174143

1010%

611 553467373296229186

254%

894 793656519404311249

502%

1140 995811641493380300

1001%




1.25 25 10 25 50 UK) 80% 50% 20% 10% 4% 2% 1%

Systematic n = historical n = Weighted skew -

14

MALHEUR AND HARNEY LAKES BASIN

10393500 SILVIES RIVER NEAR BURNS, OR

LOCATION.-- Lat 43°42'55", long 119°10'35", in NW 1/4 NW 1/4 sec.31, T.21 S., R.30 E., Harney County, Hydrologlc Unit 17120002, on left bank. 5 mi downstream from Emigrant Creek and 11 mi northwest of Burns.


PERIOD OF RECORD. May 1903 to July 1906, December 1908 to December 1912, March 1913 to September 1917 (irrigation seasons only), March 1918 to October 1920, March 1921 to July 1922 (irrigation seasons only), October 1922 to 1987.

GAGE. Water-stage recorder. Datum of gage is 4,195 ft above National Geodetic Vertical Datum of 1929 (river-profile survey). See WSP 1734 for history of changes prior to Oct. 4, 1951.

REMARKS. No regulation. Diversions for irrigation upstream from station during periods of high flow only.

AVERAGE DISCHARGE. 74 years (water years 1904-5, 1910-12, 1918-21, 1923-87), 181 ft 3 /s, 131,100 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,960 ft 3/s Apr. 6, 1952, gage height, 15.2 ft; no flow July 19 to Sept. 22, 1934.





1 37

14306090

120183

n

64 6464646464646464

DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCE


250%

6.6 6.87.17.47.99.4131522

2 2223456

520%

.1

.3

.5

.8

.4

.3

.3

.912

1010%

1.0 1.11.21.62.12.83.14.48.1

20

0. 0.0,0.1.1,1.2,5,

5%

.5

.5

.6

.9

.3

.9

.8

.9

.8

50

0. 0,0.0.0.0.1,1.3.

2%

.1

.1

.1

.2

.5

.8

.0

.8

.8

100

0. 00.0,0,0.0,1,2,

1%

.0

.0

.0

.0

.0

.0

.6

.3

.9



1 37

15306090



n

73 737373737373

250%

1280 12101090940787605483

520%

2190 20901900166013901060851

1010%

2690 259023702080176013501090

254%

3210 312028702540216016601360

502%

3510 344031702820240018601540

1001%

3760 370034203060261020401700



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2230 2920 3860 4590 5360

Systematic n = Weighted skew

81 historical n = 0 = -0.179

15


10396000 DONNER UNO BLITZEN RIVER NEAR FRENCHGLEN, OR

LOCATION. Lat 42°47'28", long 118°52'00", in NW 1/4 NW 1/4 sec.20, T.32 S., R.32-1/2 E., Harney County,Hydrologlc Unit 17120003, Bureau of Land Management land, on left bank 1.5 mi upstream from upper diversions for Malheur National Wildlife Refuge, 2.0 mi downstream from Fish Creek, and 3.5 mi southeast of Frenchglen.


PERIOD OF RECORD. March 1911 to September 1913, March 1914 to September 1916, April 1917 to September 1921, August to November 1929, April to September 1930, December 1937 to 1987. Monthly discharge only for some periods, published in WSP 1314. Published as "near Diamond" 1911-21. Records of discharge for January 1909 to September 1910 (published in WSP 270, 290, and 370, for a nonequivalent site as "near Diamond") have been found to be unreliable and should not be used.

REVISED RECORDS. WSP 330: Drainage area (former site). WSP 860: Drainage area (present site). WSP 1564: 1938-39(M), 1942-43(M), 1948(M), 195KP), 1952-53. WSP 1714: Drainage area. See also PERIOD OF RECORD.

GAGE.--Water-stage recorder and concrete control. Datum of gage is 4,254 ft above National Geodetic Vertical Datum of 1929 (levels by Fish and Wildlife Service). Prior to December 1937, nonrecording gage at several sites within 2 mi downstream at different datums. Dec. 6, 1937, to Feb. 14, 1938, nonrecording gage at present site and datum.

REMARKS. No regulation or diversion upstream from station. Water-quality records for period March 1985 to September 1986 have been collected at this location.

AVERAGE DISCHARGE. 57 years (water years 1912-13, 1915-16, 1918-21, 1939-87), 128 ft 3 /s, 92,740 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,270 ft 3/s Apr. 26, 1978, gage height, 7.15 ft, from floodmarks, from rating curve extended above 1,900 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 4.2 ft 3 /s Dec. 9, 1972, result of freezeup.





1 37

14306090

120183



n

49 4949494949494949

250%

232731343738404145

520%

17 2024273031323437

1010%

15 1820242728293033

205%

13 1518222526272830

502%

11 1316202323252628

1001%

10 1214182122232426



1 37

15306090



n

57 575757575757

250%

848 685576483415346297

520%

1290 996807670575468399

1010%

1600 1190947783673539457

254%

1990 14301110913789620522

502%

2280 159012201000869673565

1001%

2580 175013301090946723604



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

Systematic n Weighted skew

61 historical n * -0.381

16


10397000 BRIDGE CREEK NEAR FRENCHGLEN, OR

LOCATION. Lat 42°50'38", Long 118°50'57", in SW 1/4 NW 1/4 sec.33, T.31 S., R.32 1/2 E., Harney County, Hydrologic Unit 17120003, on right bank at mouth of canyon, 3.5 miles northeast of Frenchglen.

PERIOD OF RECORD. March to August 1911, January 1912 to September 1916, April to June 1930, December 1937 to September 1970. Monthly discharge only April to June 1930, published in WSP 1314. Published as "near Diamond" 1911-1916.


GAGE.--Water-stage recorder and concrete control. Datum of gage is 4,184.93 ft above National Geodetic Vertical Datum of 1929 (levels by Fish and Wildlife Service). Prior to Dec. 21, 1937, nonrecording gage at sites within 1 mi upstream at different datums. Dec. 21, 1937, to May 17, 1938, nonrecording gage at site 1,000 ft downstream at different datum. May 18, 1938, to Aug. 22, 1939, nonrecording gage at present site and datum.

REMARKS. No regulation or diversion upstream from station. Low-water flow is sustained by large springs.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 301 ft 3/s May 19, 1953, gage height, 2.73 ft, from rating curve extended above 65 ft 3/s; minimum, 4.2 ft 3 /s Feb. 25, 1962.




[Short-duration statistics uncertain due to excessive skew]


1 37

14306090

120183



n

:: 36363636

250%

:: 10111111

520%

8.38.68.89.4

1010%

:: 7.37.67.78.3

205%

6.56.76.97.5

502%

5.65.86.06.6

1001%

:: 5.15.35.46.0



1 37

15306090



n

36 363636363636

250%

45 342926242018

520%

77 574538332724

1010%

101 745745393228

254%

133 997455463832

502%

159 1208862524336

1001%

185 14310370574740



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

175 423 507


17

MALHEOR AND HARNEY LAKE BASIN

10403000 SILVER CREEK NEAR RILEY, OR

LOCA7ION.--Lat 43°41'30" f long 119°39'30", in E 1/2 sec.l, T.22 S. f R.25 E., Harney County, Hydrologic Unit 17120004, on right bank 0.4 mi downstream from Rough Creek, 1.4 mi upstream from Nicoll Creek, and 14 mi northwest of Riley.

DRAINAGE AREA.--228 mi 2 .

PERIOD OF RECORD. June 1951 to September 1980.

GAGE.--Water-stage recorder. Datum of gage is 4,449.70 ft above National Geodetic Vertical Datum of 1929.


AVERAGE DISCHARGE. 29 years, 42.8 ft 3 /s, 31,010 acre-ft/yr.

EXTREMES TOR PERIOD OF RECORD. Maximum discharge, 1,810 ft 3/s Dec. 22, 1964, gage height, 7.49 ft; no flow at times.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

28 2828282828282828


250%

1, 1,1,1,1.1,2.2,3.

.2

.4

.4

.6

.7

.9

.3

.7

.8

520%

0.5 0.50.50.50.71.01.41.82.8

1010%

0 0,0,0,0011,2

.0

.2

.2

.2

.3

.7

.0

.4

.3

205%'

0.0 0.00.10.10.20.50.81.21.9

50

0, 0,0,0.0,0.0,0.1,

2%

.0

.0

.0

.0

. 1

.3

.6

.9

.6

100

0 00000001

1%

.0

.0

.0

.0

.0

.2

.5

.8

.4



1 37

15306090

DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

29 292929292929

250%

460 413348285226167131

520%

768 687580486386280216

1010%

972 871735619487345264

254%

1220 1100926780601415314

502%

1400 12601060894677457344

1001%

1570 141011901000746493368



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

590 1360 1790 2430

Systematic n = 29 historical n = 0 Weighted skew = -0.376

18

ALVORD LAKE BASIN

10406500 TROUT CREEK NEAR DENIO, NV

LOCATION. Lat 42°09'20", long 118°27'14", in NW 1/4 SE 1/4 sec.26, T.39 S., R.36 E., Harney County, HydrologicUnit 17120009, on right bank 0.4 mi upstream from bridge at mouth of canyon, 5 mi east of Trout Creek Ranch, and 14 mi northeast of Denio.


PERIOD OF RECORD. March 1911 to March 1912, April 1922 to November 1923, March 1925 to September 1931 (irrigation seasons only), April 1932 to 1987. Prior to Oct. 1, 1961, published as "near Denio, Oreg."

REVISED RECORDS.--WSP 1564: 1932, 1933-34(M), 1938(M). WSP 1714: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 4,351.52 ft above National Geodetic Vertical Datum of 1929.Mar. 25, 1911, to Mar. 31, 1912, nonrecording gage at bridge 0.4 mi downstream at different datum.Apr. 28, 1922, to June 14, 1932, water-stage recorder at site 10 ft upstream at datum 0.50 ft higher.


AVERAGE DISCHARGE. 56 years (water years 1923, 1933-87), 16.8 ftVs, 12,170 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 470 ft 3 /s Aug. 1, 1933, gage height, 5.26 ft, from rating curve extended above 230 ft 3 /s; minimum discharge observed, 0.10 ft 3 /s Aug. 4, 1930, Aug. 1, Sept. 12, 28, 1934.

Probably no flow at times Sept. 1-19, 1931.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage, 6.0 ft, caused by cloudburst, probably occurred in 1924 or 1925.




DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCEPERIOD(CONSECUTIVEDAYS)

1 37

14306090

n

54 545454545454

250%

2.3 2.42.62.83.23.84.1

INTERVAL,EXCEEDANCE

520%

1.1 1.11 .21.31.62.02.4

IN YEARS, ANDPROBABILITY,

1010%

0.6 0 0.7 00.7 00.8 01.0 01 .2 01.7 1

ANNUAL NON-IN

205%

.4

.4

.5

.5

.6

.7

.2

PERCENT

502%

0.2 0.20.30.30.30.40.8

100

0 000000

1%

.2

.2

.2

.2

.2

.2

.6120 54 4.5 2.9 2.1 1.6 1.2 0.9183 54 5.1 3.6 2.9 2.5 2.0 1.7



1 37

15306090



n

55 555555555555

250%

95 928576655141

520%

1621541411251068367

1010%

211 19517415413210383

254%

277 247213187161126102

502%

328 283238208180141115

1001%

380319260226196155127



1.2525To2550100 80% 50% 20% 10% 4% 2% 1%

66ITS 200 26636244~1528


19

PACIFIC SLOPE BASINS IN CALIFORNIA

GOOSE LAKE BASIN

11339500 DREWS CREEK NEAR LAKEVIEW, OR

LOCATION.--Lat 42°07'10", long 120°34'45", in NW 1/4 NE 1/4 sec.10, T.40 S., R.18 E., Lake County, Hydrologic Unit 18020001, on left bank 10 ft upstream from bridge, 2.0 mi downstream from Willow Creek, 2.7 mi downstream from Drews Dam, and 13 mi southwest of Lakeview.


PERIOD OF RECORD. January 1909 to September 1930 (yearly estimate only for 1920), March 1931 to September 1936(irrigation seasons only), April 1937 to September 1938, March 1939 to October 1941, February 1942, April 1942 to September 1952, February 1953 to September 1981. Monthly discharge only October 1921 to September 1925, published in WSP 1315-A. Published as Drew Creek near Lakeview October 1918 to September 1959.

GAGE.--Water-stage recorder. Datum of gage is 4,827.0 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation). See WSP 1931 for history of changes prior to July 4, 1953.

REMARKS. Record herein, except average discharge, not adjusted for diversion by North Drews Canal. Since 1912, flow regulated by Drews Reservoir, capacity, 62,550 acre-ft. Diversion for irrigation upstream from station, and since March 1914, North Drews Canal has diverted upstream from station for irrigation of lands west of Lakeview. Records subsequent to September 1981 in files of Oregon Water Resources Department.

AVERAGE DISCHARGE. 50 years (water years 1913-30, 1938, 1940-41, 1947, 1954-81), 70.6 ft 3 /s, 51,150 acre-ft/yr, including diversion by North Drews Canal.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, about 3000 ftVs Mar. 1, 2, 1910, from rating curve extended above 1,200 ft 3 /s; no flow at times.





1 37

14306090

120183

n

38 3838383838383838


250%

0.8 0.80.91.01.21.21.72.55.3

5 10 2020% 10%

0.3 0. 0.3 00.3 00.4 00.5 00 .7 0,0.9 01.1 02.5 1,

.2

.2

.2

.2

.3

.5

.6

.7

.7

0. 0,0000001,

5%

.0

.0

.0

.0,2.4.5.5.3

50

0. 0,0,0,0,0,0,0.0.

2%

.0 ,0.0.0,1.3.3.3.9

100

0 000,000.00

1%

.0

.0

.0

.0

.1

.3

.3

.3

.7



1 37

15306090



n

54 545454545454

250%

255 250240215176133111

520%

636 616582509404290231

1010%

993 951885767602423329

254%

1560 147013401150898620469

502%

2060 1920172014701150784582

1001%

2620 2410214018101420963702



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1780 2380 3610 4170 4560 4940

Systematic n » 67 historical n Weighted skew = -0.199

20

GOOSE LAKE BASIN

11340500 COTTONWOOD CREEK NEAR LAKEVIEW, OR

LOCATION. Lat 42°14'14", long 120°30'16", In SE 1/4 SW 1/4 sec.29, T.38 S., R.19 E., Lake County, Hydrologlc Unit 18020001, on right bank 0.5 mi downstream from Cottonwood Dam and 9 mi northwest of Lakeview.

DRAINAGE AREA. 32.9 mi 2 .

PERIOD OF RECORD. November 1908 to September 1919, May 1924 to November 1935, March to December 1936, April to December 1937, April 1938 to November 1942, March to November 1943, March to October 1944, February to November 1945, March 1946 to September 1981. Monthly discharge only May 1924 to September 1925, published in WSP 1315-A.

GAGE. Water-stage recorder. Datum of gage is 4,949.37 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation). Prior to June 1, 1919, and May 1, 1924, to June 3, 1932, nonrecordlng gage at several sites within 0.6 mi upstream at different datums. June 1 to Sept. 30, 1919, and June 4, 1932, to Sept. 14, 1961, water-stage recorder at site 0.6 mi upstream at different datums.

REMARKS. Flow regulated since 1923 by Cottonwood Reservoir, capacity, 7,540 acre-ft. Since October 1961, 240 acre-ft unregulated storage in Cottonwood Meadows, 9 mi upstream. Diversions for irrigation upstream from station. Records subsequent to September 1981 in files of Oregon Water Resources Department.

AVERAGE DISCHARGE. 60 years (water years 1910-19, 1925-35, 1939-42, 1947-81), 21.1 ft 3 /s, 15,290 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, between 500 and 1,000 ft 3/s during period Apr. 26 to May 1, 1927, when natural flow, estimated as 170 ft 3 /s, was augmented by water escaping from reservoir through break in outlet conduit near control gates; no flow at times.





1 37

14306090

120183


n

10 1010101010101010

250%

1.4 1.51.61.82.22.73.24.25.3

0 00112223

520%

.7

.8

.9

.1

.6

.0

.3

.8

.5

10 2010% 5%

0.4 0.50.60.81.41.71.92.22.9

50 1002% 1%

_ _



1 37

15306090



n

10 101010:o1010

250%

2251981661391219880

520%

297 247208176151128108

1010%

345 273234198166143123

25 50 1004% 2% 1%

II II II


.DISCHARGE, IN FT /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

Systematic n = 11 historical n Generalized 17b skew = 0.031

21

GOOSE LAKE BASIN

11340500 COTTONWOOD CREEK NEAR LAKEVIEW, OR Continued





1 37

14306090

120183


n

49 4949494949494949

250%

0.3 0.30.40.40.51.11.31.62.5

520%

0.0 0.00.00.10.20.40.50.71.2

1010%

0.0 0.00.00.00.00.20.30.40.8

205%

0.0 0.00.00.00.00.10.10.20.6

502%

0.0 0.00.00.00.00.00.00.10.4

1001%

0.0 0.00.00.00.00.00.00.10.3



1 37

15306090



n

50 505050505050

250%

111 1039178635347

520%

195 1781521241028575

1010%

253 22919315512810591

254%

328 295245193160130110

502%

382 343284220184148123

1001%

435 390321246207164134

MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW BASED ON PERIOD OF RECORD


1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = Weighted skew =

historical n

22

KLAMATH RIVER BASIN

11493500 WILLIAMSON RIVER NEAR KLAMATH AGENCY, OR

LOCATION. Lat 42°44'25", long 121°50'00", in NW 1/4 SW 1/4 sec.l, T.33 S., R.7 E., Klamath County, Hydrologic Unit 18010201, on right bank 250 ft downstream from highway bridge, 0.6 mi southwest of railroad station at Kirk, 10 mi upstream from Spring Creek, and 10 mi northeast of Klamath Agency.

DRAINAGE AREA. 1,290 mi 2 , approximately.

PERIOD OF RECORD. March 1908 to January 1909, April 1909 to June 1910, October 1954 to 1987. Monthly discharge only June 1910, published in WSP 1315-B.

REVISED RECORDS. WSP 1565: 1908-9.

GAGE. Water-stage recorder. Datum of gage is 4,483.16 ft above National Geodetic Vertical Datum of 1929.Mar. 25, 1908, to June 30, 1910, nonrecording gage or water-stage recorder at two sites about 0.5 mi upstream at different datums. Oct. 1, 1954, to Sept. 30, 1955, water-stage recorder at present site at datum 2.05 ft higher.

REMARKS. Flow affected by natural storage in Klamath Marsh. Small diversions upstream from station for irrigation in vicinity of marsh.

AVERAGE DISCHARGE. 33 years (water years 1955-87), 212 ft 3 /s, 153,600 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge observed, 1,590 ft 3 /s Mar. 13, 1910, gage height, 3.7 ft, site and datum then in use, from rating curve extended above 800 ft 3 /s; maximum gage height, 5.57 ft Mar. 3, 1958; no flow at times during 1960-74, 1977-81.




[Low-flow statistics uncertain due to excessive zero events]

PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

32 3232323232323232

DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

250%

0.0 0.00.00.00.00.00.24.945

520%

0.00.00.00.00.00.00.00.08.4

1010%

0 00000002

.0

.0

.0

.0

.0

.0

.0

.0

.5

205%

0.0 0.00.00.00.00.00.00.00.7

50

000000000

2%

.0

.0

.0

.0

.0

.0

.0

.0

.2

100

0 00000000

1%

.0

.0

.0

.0

.0

.0

.0

.0

.0



1 37

15306090



n

33 333333333333

250%

694 689676654607524458

520%

944 937921889823717629

1010%

1080 108010601020947834737

254%

1240 1230121011701090970866

502%

1340 13301310127011801060959

1001%

1430 142014001350126011501050



1.25 80%

250%

5 20%

10 10%

254%

50 2%

1001%

518 702 945 1100 1290 1430 1570


23

KLAMATH RIVER BASIN

11497500 SPRAGUE RIVER NEAR BEATTY, OR

LOCATION. Lat 42°26'50", long 121°14'15", in NW 1/4 SE 1/4 sec.13, T.36 S., R.12 E., Klamath County, Hydrologic Unit 18010202, on right bank 1.6 mi east of Beatty, and 4.6 mi upstream from Sycan River.

DRAINAGE AREA. 513 mi2 .

PERIOD OF RECORD. April to September 1912 and November 1912 to September 1913 (fragmentary), October 1913 toSeptember 1915, February to November 1916, March 1917 to June 1918, May 1919 to October 1920, February 1921 to September 1926 (irrigation seasons only), October 1953 to 1987. Monthly discharge only October 1913, published in WSP 1315-B. Prior to October 1917, published as "near Yainax."

REVISED RECORDS.--WSP 1315-B: 1917(M).

GAGE. Water-stage recorder. Datum of gage is 4,305.35 ft above National Geodetic Vertical Datum of 1929.Apr. 19, 1912, to Feb. 19, 1914, nonrecording gage, Feb. 20, 1914, to Sept. 11, 1917, water-stage recorder, and Sept. 12, 1917, to Sept. 30, 1926, nonrecording gage, at site 2 mi upstream at different datum.

REMARKS.--No regulation. Diversions for irrigation upstream from station in the vicinity of Bly.

AVERAGE DISCHARGE. 37 years (water years 1914-15, 1920, 1954-87), 314 ft 3 /s, 227,500 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,980 ft 3/s Dec. 23, 1964, gage height, 12.19 ft; minimum discharge, 50 ft 3 /s Aug. 25, 1981.





1 37

14306090

120183


n

333333333333333333

250%

99101103106112120129137155

520%

8081848691

101110119137

1010%

70 7274778292

102111130

205%

63 656769748595

105124

502%

56 58596266778899

119

1001%

51 53545761738395

116


DISCHARGE, IN FT 3 /S, FOR INDICATED RECURRENCEPERIOD(CONSECUTIVEDAYS)

1 37

15306090

n

34 343434343434

250%

1390 12301050930808676599

INTERVAL,EXCEEDANCE

520%

240021101760146012301020893

IN YEARS, ANDPROBABILITY, IN

1010%

3140 277022601800149012301080

254%

4120 365029202210180014801300

ANNUALPERCENT

502%

4890 434034202500201016601450

1001%

5670 505039202780220018201590



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

1480 2590 4660 5650 6710


24

KLAMATH RIVER BASIN

11501000 SPRAGUE RIVER NEAR CHILOQUIN, OR

LOCATION. Lat 42°35'05", long 121°50'55", in NE 1/4 NW 1/4 sec.35, T.34 S., R.7 E., Klamath County, Hydrologic Unit 18010202, on right bank 1.0 mi northeast of Chiloquin, 4.6 mi upstream from Modoc Point Canal intake, and at mile 5.4.

DRAINAGE AREA. 1,580 mi2 , approximately.

PERIOD OF RECORD. July to October 1920, March 1921 to 1987. Monthly discharge only July 1920, published in WSP 1315-B. Prior to October 1931, published as "at McCready Ranch, near Chiloquin."

REVISED RECORDS. WSP 591: 1922(M). WSP 1011: 1943 (M). WSP 1565: 1921-22.

GAGE. Water-stage recorder. Datum of gage is 4,202.43 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1931, nonrecording gage at site 12 mi upstream at different datum.

REMARKS. Minor regulation from irrigation diversions upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 14,900 ft 3 /s Dec. 26, 1964, gage height, 10.37 ft; minimum daily discharge, 50 ft 3/s May 26, 1926.





1 37

14306090

120183


n

56 5656565656565656

250%

180 186194200210222236251289

520%

137 142149156167179192205235

1010%

118 122129136147160172184210

205%

103 107114121133145156168191

502%

89 9299

105117130140152171

1001%

80 839096

108121131141159



1 37

15306090



n

66 666666666666

250%

2050 198018101590137011701050

520%

3910 374033402840240019801720

1010%

5500 523045903810317025702210

254%

7960 748064205180425033802870

502%

10100 943079706290510040103380

1001%

12600 1160096807480601046703920



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

3980 8100 10300 12800


25

KLAMATH RIVER BASIN

11502500 WILLIAMSON RIVER BELOW SPRAGOE RIVER, NEAR CHILOQOIN, OR

LOCATION. Lat 42°34'15", long 121°52'35" r in NE 1/4 NE 1/4 sec.4, T.35 S., R.7 E., Klamath County, Hydrologic Unit 18010202, on right bank. 0.2 mi downstream from Sprague River and 0.8 mi southwest of Chiloquin.


PERIOD OF RECORD. June 1917 to 1987.

REVISED RECORDS.--WSP 981: 1938(M). WSP 1565: 1920(M), 1927(M), 1938.

GAGE. Water-stage recorder. Datum of gage is 4,155.55 ft above National Geodetic Vertical Datum of 1929. Prior to Sept. I, 1923, at different datum.

REMARKS. Some regulation by diversion dams and logpond operations of Sprague River. Diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 70 years, 1,061 ft 3 /s, 768,700 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,100 ft 3/s Dec. 26, 1964, gage height, 10.56 ft; minimum discharge, 320 ft 3 /s Oct. 14, 1920.





1 37

14306090

120183



n

63 6363636363636363

250%

482 488497505516529544565625

520%

425 430441450462475488503545

1010%

402 407418428442455467480515

205%

386 390402412429442453466495

502%

371 375387398416430441453477

1001%

362 366378389409423435446467



1 37

15306090



n

69 696969696969

250%

2870 278026002370214018801710

520%

4380 470043103810334028502530

1010%

6550 628056804900422035503120

254%

9060 865076706420543044803900

502%

11200 1070093707670640052204520

1001%

13700 13000112009010742059805150



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

5030 9180 11300 13700


26

KLAMATH LAKE BASIN

11503000 ANNIE SPRING NEAR CRATER LAKE, OR

LOCATION. Lat 42°52'20", long 122°10'00", unsurveyed, Klamath County, Hydrologic Unit 18010203, in Crater Lake National Park, at highway bridge 0.1 mi downstream from source.

DRAINAGE AREA.--Indeterminate, normal flow is entirely from Annie Spring.

PERIOD OF RECORD. June 1977 to 1987. Discharge measurement and fragmentary gage-height record August to October 1913. Discharge measurements only Oct. 11, 1967, June 26, Sept. 13, 1968.

GAGE. Water-stage recorder and V-notch sharp-crested weir. Datum of gage is 5,982.65 ft above National Geodetic Vertical Datum of 1929 (National Park Service bench mark).

REMARKS. Fluctuations caused by pumps 0.1 mi upstream. Diversion for domestic use by National Park Service 0.1 mi upstream.

COOPERATION. Records of diversion by pumping furnished by National Park Service.

AVERAGE DISCHARGE.--10 years, 3.20 ft 3/s, 2,320 acre-ft/yr, adjusted for diversion.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 18 ft 3/s July 6, 1984, gage height, 1.56 ft; minimum discharge, 0.33 ft 3 /s Nov. 20, 22, 1977.




[Low-flow statistics not computed due to insufficient period of record]

PERIOD(CONSECUTIVEDAYS) n

1 37

14306090

120183

DISCHARGE, ININTERVAL,

FT3/S, FORIN YEARS,

INDICATEDAND ANNUAL

RECURRENCENON-


2 550% 20%

:: ::

1010%

::

205%

::

502%

::

1001%

:: MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

10 101010101010

9 999876

250%

.9

.8

.6

.3

.7

.5

.4

520%

14 1414131210

8.6

10 2510% 4%

17 171615141210

50 1002% 1%

II II _ _



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = historical n Generalized 17b skew =

27

KLAMATH LAKE BASIN

11504000 WOOD RIVER AT FORT KLAMATH, OR

LOCATION. Lat 42°42'05", long 121°59'20", in sec.22, T.33 S., R.7 1/2 E., Klamath County, Hydrologic Unit 18010203, at highway bridge 0.2 mi east of Fort Klamath.


PERIOD OF RECORD. April 1913 to September 1916, October 1918 to September 1919, October 1923 to September 1936.

GAGE.--Staff gage. Datum of gage is 4,166.65 ft above National Geodetic Vertical Datum of 1929. Prior toAug. 21, 1923, near described site at datum 0.19 ft lower. Aug. 21 to Sept. 30, 1923, 0.2 mi downstream at different datum. Oct. 1, 1923 to Sept. 30, 1925, at described site at datum 0.81 ft higher.

REMARKS. Many diversions for irrigation upstream from station. Regulation by diversion dams.

AVERAGE DISCHARGE. 17 years (water years 1914-16, 1919, 1924-36), 215 ft 3 /s.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge observed, 520 ft 3/s Nov. 17, 1920, gage height, 2.41 ft, from rating curve extended above 350 ft 3 /s; minimum, 84 ft 3 /s in July, August, September, 1931.





1 37

14306090

120183


n

15 1515151515151515

250%

141 144148151155160167174182

520%

109111114116119123128133144

1010%

96 9899

102104107112116127

205%

87 8989929396

100103114

50 1002% 1%



1 37

15306090



n

18 181818181818

250%

351 320296277260248243

520%

407 366342322305292287

1010%

435 390367348332319314

254%

464 415396380366351346

50 1002% 1%

__



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

310 424 509 542


28

KLAMATH RIVER BASIN

11509500 KLAMATH RIVER AT KENO, OR

LOCATION. Lat 42°08'00", long 121°57'40", in NW 1/4 SE 1/4 sec.35, T.39 S., R.7 E., Klamath County, Hydrologic Unit 18010206, on left bank 1.7 mi northwest of Keno and 4.5 mi upstream from Spencer Creek.

DRAINAGE AREA. 3,920 mi 2 , approximately (not including Lost River or Lower Klamath Lake basins).

PERIOD OR RECORD. June 1904 to December 1913, October 1929 to 1987. Monthly discharge only October to December 1929, published in WSP 1315-B.

GAGE.--Water-stage recorder. Datum of gage is 3,961 ft above National Geodetic Vertical Datum of 1929 (from river-profile survey). See WSP 1735 for history of changes prior to Nov. 6, 1954.

REMARKS. Flow regulated since 1919 by Upper Klamath Lake (station 11507001). Fluctuation by Keno powerplant 0.9 mi upstream. Diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 67 years, 1,705 ft 3 /s, 1,235,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 10,300 ftVs Feb. 28, 1986, gage height, 12.82 ft, caused by regulation from Keno powerplant 0.9 mi upstream; minimum discharge, 26 ftVs Sept. 23, 1956; minimum daily, 60 ft 3 /s May 19, 1934.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage, 15.3 ft, from floodmark (original datum), about May 10, 1904, discharge, 9,250 ft Vs.


[n = number of values used to compute statistics)



1 37

14306090

120183


n

57 5757575757575757

250%

254 310340369425505629754

1000

520%

147 184205223267324409495678

1010%

110 141159174212259322385533

205%

87 113130143177216262308429

502%

67 88

104115145176206235328

1001%

56 7590

100128154174195271



1 37

15306090

DISCHARGE, IN FTVS, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

58 585858585858

250%

4060 396037803480317027702500

520%

6390 626060505600508043903920

1010%

8120 - 796077207180653055504940

254%

10500 10300100009370854071206310

502%

12400 1220011800111001020083607390

1001%

14400 1410013700130001190096408520


DISCHARGE, IN FT/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = historical n = Weighted skew = --

29

KLAMATH RIVER BASIN

11510700 KLAMATH RIVER BELOW JOHN C. BOYLE POWERPLANT, NEAR KENO, OR

LOCATION. Lat 42°05'05", long 122°04'20", in SE 1/4 SE 1/4 sec.14, T.40 S., R.6 E., Klamath County, Hydrologic Unit 18010206, on right bank 0.7 mi downstream from John C. Boyle powerplant, 8 mi downstream from Spencer Creek, and 8.5 mi southwest of Keno.

DRAINAGE AREA. 4,080 mi2 , approximately (not including Lost River or Lower Klamath Lake basins).

PERIOD OF RECORD.-- January 1959 to 1987. Prior to Oct. 1, 1961, published as "below Big Bend powerplant."

GAGE. Water-stage recorder. Datum of gage is 3,274.82 ft above National Geodetic Vertical Datum of 1929 (levels by Pacific Power & Light Co.).

REMARKS. Flow regulated by Upper Klamath Lake (station 11507001). Large diurnal fluctuation caused by Keno and John C. Boyle powerplants. Diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 11,000 ft 3/s Mar. 5, 1972, gage height, 9.33 ft; minimum discharge, 283 ft 3 /s Feb. 17, 1968; minimum daily, 317 ft 3/s July 25, 1968.





1 37

14306090

120183


n

26 2626262626262626

250%

370 409480520567632737844

1080

520%

332 359433480523570649730880

1010%

322 342418469507546609679798

205%

316 332410462498530578641738

502%

312 325403458490516547601680

1001%

311 321400456486508527577645



1 37

15306090



n

27 272727272727

250%

5310 518049304460404035503200

520%

7980 772073106630602050804510

1010%

9810 946089608190746061305390

254%

12200 117001110010300944074706510

502%

13900 1340012700119001100084907360

1001%

15700 1510014400137001270095108210



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

8730 13300 15200


30

KLAMATH RIVER BASIN

11514500 KEENE CREEK NEAR ASHLAND, OR

LOCATION. Lat 42°10'15", long 122°28'40", in NW1/4 sec. 21, T.39 S., R.3 E., Jackson County, Hydrologic Unit 18010206, on right bank 0.3 mi upstream from Burnt Creek, 0.6 mi downstream from Hyatt Dam, and 12 mi east of Ashland.


PERIOD OF RECORD. April to July 1917, December 1917 to July 1920 (no low-flow records), October 1920 to June 1922, October 1948 to September 1965. Monthly discharge only October 1948, published in WSP 1315-B. Published as "at Hyatt Prairie, near Ashland" December 1917 to July 1920, October 1920 to June 1922, October 1948 to September 1958.

GAGE.--Water-stage recorder and concrete control. Datum of gage is 4,706 ft above National Geodetic Vertical Datum of 1929 (by stadia survey). Apr. 1, 1917, to June 30, 1922, at site 0.5 mi upstream at different datum.

REMARKS. Flow regulated since December 1922 by Hyatt Reservoir. No diversion upstream from station. Practically entire flow diverted downstream from station by Green Springs powerplant diversion.

AVERAGE DISCHARGE. 17 years (water years 1949-65), 12.7 ft 3/s, 9,190 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 751 ftVs May 3, 1954, gage height, 5.33 ft, caused by failure of flashboards on spillway of Hyatt Dam, from rating curve extended above 50 ft 3/s on basis of computation of peak flow over Columbus-type control; no flow at times.





1 37

14306090

120183


n

16 1616161616161616

250%

0.2 0.20.20.20.20.30.30.30.5

520%

0.2 0.20.20.20.20.20.20.30.3

1010%

0.1 0.10.10.10.20.20.20.20.3

205%

0.1 0.10.10.10.20.20.20.20.3

50 1002% 1%

_ _



1 37

15306090



n

17 171717171717

250%

69 706965595042

520%

90 888179756555

1010%

112 1028684807060

254%

154 1229187837464

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


31

SNAKE RIVER BASIN

OWYHEE RIVER BASIN

13181000 OWYHEE RIVER NEAR ROME, OR

LOCATION. Lat 42°52'02", long 117°38'52", in SE 1/4 NE 1/4 sec.14, T.31 S., R.41 E., Malheur County, Hydrologic Unit 17050107, on right bank. 0.5 mi downstream from Jordan Creek., 2.6 mi north of Rome, and at mile 122.4.

DRAINAGE AREA. About 8,000 mi 2 .

PERIOD OF RECORD. October 1949 to 1987.

GAGE. Water-stage recorder. Datum of gage is 3,344.20 ft above National Geodetic Vertical Datum of 1929. Prior to Feb 10, 1960, at datum 0.24 ft lower.

REMARKS. Flow regulated by Antelope Reservoir, capacity, 70,000 acre-ft, increased in 1970, and Wild Horse Reservoir, capacity, 32,690 acre-ft, and numerous small reservoirs. Diversions upstream from station for irrigation.


EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 41,400 ft 3 /s Feb. 19, 1986, gage height, 19.09 ft; minimum, 42 ft 3/s Aug. 12, 1954, July 28, Aug. 5, 1961, July 31, 1968.





1 37

14306090

120183


n

17 1717171717171717

250%

128 129132138151167178191231

520%

98 99

102108117131137146172

1010%

85 879196

104116121129151

205%

76 79838994

106110116137

502%

67717681859699

105123

1001%

61 66717780909398

116



1 37

15306090



n

38 383838383838

250%

10000 826063504790365027802310

520%

18000 15100120009270714054204490

1010%

22900 195001610012600974073506100

254%

282002460021100168001320098708220

502%

31500 28100248002000015800118009810

1001%

34400 312002830023200185001360011400



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = -- Weighted skew =

historical n

32

OWYHEE RIVER BASIN

13182000 OWYHEE RIVER ABOVE LAKE OWYHEE, OR

LOCATION.--Lat 43°13'34", long 117°29'47", in SE1/4 sec.7, T.27 S., R.43 E., Malheur County, Hydrologic Unit 17050110, on left bank 3 mi upstream from flow line of Lake Owyhee and 26 mi northeast of Rome.

DRAINAGE AREA.--10,400 mi2 , approximately.

PERIOD OF RECORD.--April 1929 to September 1951. Monthly discharge only for some periods, published in WSP 1317.

GAGE. Water-stage recorder. Elevation of gage is 2,690 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation).

REMARKS. Flow regulated by Antelope Reservoir, Wild Horse Reservoir, and numerous small reservoirs. Diversions upstream from station for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,000 ft 3/s Mar. 20, 1932, Apr. 19, 1936; maximum gage height, 12.95 ft Mar. 20, 1932; minimum discharge, 99 ft 3 /s Dec. 18, 1948, gage height, 3.45 ft.





1 37

14306090

120183


n

20 2020202020202020

250%

155 158161164168173181190214

520%

130 132133135138143149157174

1010%

118 119120121124128134141155

205%

109 109109110112117122128142

502%

97 989898

100104109115128

1001%

:: --MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090

DISCHARGE, IN FT /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

21212121212121

250%

7570 644053304500377029702490

520%

12100 1050090907760621046003780

1010%

14400 12800115009820756053804370

254%

16700 151001420012200895060804890

502%

18000 165001610013700977064505140

1001%

--



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

5070 8430 16800 21100 24200


20 historical n = -0.324

33

OWYHEE RIVER BASIN

13183000 OWYHEE RIVER BELOW OWYHEE DAM, OR

LOCATION. Lat 43°39'17", long 117°15'16", in SE 1/4 sec.18, T.22 S., R.45 E.,Malheur County, Hydrologic Unit 17050110, on left bank 0.8 mi downstream from Owyhee Dam, 20 mi southwest of Nyssa, and at mile 27.3.


PERIOD OF RECORD. February 1929 to 1987.

REVISED RECORDS. WSP 983: 1941-42. WSP 1397: 1930, 1933, 1946.

GAGE. Water-stage recorder. Datum of gage is 2,343.67 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation).

REMARKS.--Flow regulated since October 1932 by Lake Owyhee (station 13182500), and by many smaller reservoirs. Diversion of up to 457,000 acre-ft from Lake Owyhee during the year for irrigation of lands downstream from station and outside the basin. Many smaller diversions upstream from Lake Owyhee for irrigation upstream from station.

COOPERATION. Water-stage recorder inspected by irrigation district employees.

AVERAGE DISCHARGE. 55 years (water years 1933-87), 446 ft 3/s, 323,100 acre-ft/yr, not adjusted for storage or diversion.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 22,900 ft 3/s Apr. 15, 1952, gage height, 15.70 ft; no flow for part of Aug. 8, 9, 1932, when temporary diversion tunnel at Owyhee Dam was closed.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183


n

54 5454545454545454

3 3333334

250%

.2

.2

.3

.4

.5

.6

.6

.415

2 22222226

520%

.1

.1

.1

.2

.3

.4

.4

.5

.2

1010%

1.7 1.71.71.81.82.02.22.14.1

205%

1.4 1.41.41.51.51.82.01.92.9

50

1 11111112

2%

.2

.2

.2

.2

.3

. 6

.9

.7

.0

1001%

1.0 1.01.11.11.11.51.91.71 .6



1 37

15306090



n

55 555555555555

250%

1520 143013101150929720607

520%

7150 673060605180393028002200

1010%

15600 147001320011100825056604290

254%

35300 33400299002480018000120008760

502%

58900 559005010041400297001940013900

1001%

92900 884007940065100463002980021000


DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

Systematic n = historical n Weighted skew =

34

OWYHEE RIVER BASIN

13184000 OWYHEE RIVER AT OWYHEE, OR

LOCATION. Lat 43°46'57«, long 117°03'30", in SE 1/4 SE 1/4 sec.35, T.20 S., R.46 E., Malheur County, Hydrologic Unit 17050110, on left bank 0.3 mi upstream from State Highway 201 bridge, 0.9 mi southwest of Owyhee, and at mile 3.1.

DRAINAGE AREA.--11,300 mi 2 , approximately.

PERIOD OF RECORD. March 1890 to June 1891, February to June 1892, February to July, October to December 1893, January 1895 to May 1897, August 1903 to September 1916, May 1920 to July 1929, July 1979 to September 1982. Monthly discharge only for some periods published in WSP 1317. Published as "at Rigsby", 1890-93; "at Nyssa", 1895-96; and as "at Owyhee" in WSP 370. Records for September, October 1903, May to October 1904, March, April 1905, published in WSP 135 in conjunction with records for Owyhee River near Owyhee and in WSP 370, have been found in error and should not be used.

GAGE. Water-stage recorder. Elevation of gage is 2,190 ft, from topographic map.

REMARKS. Flow regulated since October 1932 by Lake Owyhee, and smaller reservoirs. Diversions from Lake Owyhee for irrigation of lands upstream from station and outside the basin. Many smaller diversions upstream from Lake Owyhee for irrigation.

AVERAGE DISCHARGE. 20 years (water years 1896, 1904-16, 1922-27), 1,048 ft 3 /s, 759,300 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 29,000 ft 3/s Mar. 2, 1910, gage height, 12.9 ft site and datum then in use, from rating curve extended above 14,000 ft 3 /s; no flow July 7, 19, Aug. 14-16, 1924, July 5, 6, 1926. Maximum discharge recorded since construction of Owyhee Dam in 1932, 7,790 ft 3/s Feb. 23, 1982, gage height, 11.91 ft.





1 37

14306090

120183

n

17 1717171717171717


250%

3.5 4.05.66.68.514224295

520%

1.0 1.31.62.23.96.19.82056

1010%

0.0 0.70.81.22.84.06.51340

0 0002249

20 505% 2%

.0

.0

.4

.8

.2

.9

.6

.330

1001%

--



1 37

15306090



n

18181818181818

250%

9030 770065705310419032502800

520%

14500 12500106008450701055404620

1010%

18200 157001300010400887070505810

254%

23000 1960015900126001110088807260

50 1002% 1%

:: :: --MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 2 5 1025 50 100 80% 50% 20% 10% 4% 2% 1%

5570941015800207002760033200~

Systematic n = 21historical n =0 Weighted skew = -0.035

35

MALHEUR RIVER BASIN

13214000 MALHEUR RIVER NEAR DREWSEY, OR

LOCATION. Lat 43°47'05«, long 118°19'50«, in NE 1/4 SE 1/4 sec.31, T.20 S., R.36 E., Harney County, Hydrologic Unit 17050116, on left bank 300 ft downstream from bridge on U.S. Highway 20, 0.5 mi downstream from Cottonwood Creek, 3.0 mi southeast of Drewsey, and at mile 129.0.


PERIOD OF RECORD. June 1920 to September 1921, November, December 1921, March, April 1922, April toSeptember 1923, June 1926 to 1987. Monthly discharge only for some periods, published in WSP 1317.March to September 1914 at site 13 mi upstream; records not equivalent owing to inflow from several creeks.

REVISED RECORDS. WSP 1093: 1927. WSP 1287: Drainage area. WSP 1397: 1921, 1927-31, 1937, drainage area (former site). WSP 1517: 1952. WDR OR-78-1: 1976(P).

GAGE. Water-stage recorder. Datum of gage is 3,479.13 ft above National Geodetic Vertical Datum of 1929. Prior to Apr. 27, 1923, water-stage recorder or nonrecording gage at site 0.5 mi downstream at different datum. Apr. 27, 1923, to June 6, 1939, water-stage recorder at site 7 mi downstream at different datum.

REMARKS.--Slight regulation by small reservoirs upstream from station. Diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 12,000 ft 3/s Dec. 23, 1964, gage height, 13.50 ft, from rating curve extended above 4,500 ft /s on basis of contracted-opening measurement at gage height 13.20 ft; no flow attimes.





PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

60 6060606060606060



250%

3.1 3.33.94.45.37.1121835

1 1111248

520%

.0

.0

.0

.2

.6

.5

.0

.221

0 0000125

1010%

.3

.3

.3

.4

.7

.3

.0

.215

205%

0.0 0.00.00.00.30.61.13.511

50

0, 00000027

2%

.0

.0

.0

.0

.0

.0

.5

.1

.7

100

0 00000015

1%

.0

.0

.0

.0

.0

.0

.3

.5

.9



1 37

15306090



n

61 616161616161

250%

1600 13501110924742580486

520%

2910 2400190015301230961798

1010%

3800 30802380187015201200993

254%

4900 390029202230184014701220

502%

5670 445032602450204016501370

1001%

6410 496035702630221018201510



1.25 2 5 10 25 50 IQQ 80% 50% 20% 10% 4% 2% 1%

TOTO2040387054007~690965011800


36

MALHEUR RIVER BASIN

13215000 MALHEUR RIVER BELOW WARMSPRINGS RESERVOIR, NEAR RIVERSIDE, OR

LOCATION. Lat 43°34'29", long 118°12'31", on line between NW 1/4 SW 1/4 and SW 1/4 NW 1/4 sec.17, T.23 S.,R.37 E., Malheur County, Hydrologic Unit 17050116, on left bank 0.9 mi downstream from Warmsprings Dam, 3.0 mi upstream from South Fork, 4.0 mi northwest of Riverside, and at mile 113.


PERIOD OF RECORD. January 1906 to March 1907 and December 1908 (gage heights only), January 1909 to September 1910, December 1914 to July 1917, March 1919 to 1987. Monthly discharge only for some periods, published in WSP 1317. Figures of discharge for January 1906 to March 1907, published in WSP 272 and 370, have been found to be unreliable and should not be used. Published as Middle Fork of Malheur River at Riverside 1906-7, as Middle Fork of Malheur River above South Fork, at Riverside 1909-10, as Malheur River above South Fork, at Riverside in WSP 370, 1906-10, and as Malheur River at Warmsprings reservoir site, near Riverside 1914-17.

REVISED RECORDS. WSP 833: 1936. WSP 1063: 1942-45. WSP 1397: 1909-10, 1917. WSP 1447: 1955. See also PERIOD OF RECORD.

GAGE. Water-stage recorder and concrete control. Elevation of gage is 3,305 ft, by barometer. See WSP 1317 or 1737 for history of changes prior to Sept. 29, 1949.

REMARKS. Flow completely regulated since November 1919 by Warmsprings Reservoir (station 13214500) . Diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge observed, 7,200 ft 3/s Mar. 1, 1910, gage height, 10.7 ft, site and datum then in use, from rating curve extended above 820 ft /s; maximum discharge since storage began November 1919, 3,150 ft 3/s Mar. 22, 1984, gage height, 9.70 ft, from floodmark; no flow at times.






1 37

14306090

120183

n

65 6565656565656565

DISCHARGE, IN FT /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

250%

0. 0.0.0.0.0.0.0.1.

.1

.1

.1

.1

.2

.2

.2

.2

.0

520%

0. 0.0.0.0.0.0.0.0.

,0 .0.0.0.0.0.0.0.8

10 2010%

0. 0.0.0.0.0.0.0.0.

.0

.0

.0

.0

.0

.0

.0

.0

.3

0 00000000

5%

.0

.0

.0

.0

.0

.0

.0

.0

.1

50

0, 0,0,0,0,0,0,0,0,

2%

.0

.0,0.0.0.0.0.0.0

100

0. 0.0,0.0.0.0,0,0,

1%

,0 ,0,0.0,0.0.0.0.0



1 37

15306090



n

67 676767676767

250%

720 710684629568497453

520%

1230 119011301000861711633

1010%

1700 1640153013301110872761

254%

2480 23702180186014801100933

502%

3240 308028002350182012801070

1001%

4180 394035602940220014801210


DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = Weighted skew -

historical n

37

MALHEUR RIVER BASIN

13216500 NORTH FORK MALHEUR RIVER ABOVE BEULAH RESERVOIR, NEAR BEULAH, OR

LOCATION. Lat 43°56'54", long 118°10'24", in NW 1/4 NE 1/4 sec.4, T.19 S., R.37 E. r Malheur County, Hydrologic Unit 17050116, on left bank. 1,000 ft upstream from Beulah Reservoir, 3.5 mi northwest of Beulah, and at mile 16.8. Prior to Sept. 24, 1985, at site 800 ft upstream.


PERIOD OF RECORD. January to September 1914 (published as "at Scott's Ranch, near Beulah*), June 1936 to current year. Published as "above Agency Valley Reservoir, near Beulah*, June 1936 to September 1968.

REVISED RECORDS. WSP 1934: 1960<M).

GAGE. Water-stage recorder. Elevation of gage is 3,320 ft above National Geodetic Vertical Datum of 1929, from topographic map. Jan. 1 to Sept. 30, 1914, nonrecording gage and June 10, 1936, to Oct. 14, 1958, water-stage recorder at site 0.5 mi upstream at different datums. Oct. 15, 1958, to Oct. 8, 1975, water-stage recorder at site 800 ft upstream, datum of gage 3,351.0 ft. Oct. 9, 1975, to Sept. 24, 1985, at site 800 ft upstream, datum of gage 3,349.4 ft.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,970 ft 3/s Dec. 23, 1964, gage height, 9.90 ft, present datum, from floodmark, from rating curve extended above 1,300 ft 3/s, on basis of slope-area measurement of peak flow; maximum gage height, 11.0 ft, present datum, sometime during period Dec. 17-23, 1964 (icejam); minimum discharge, 8.5 ft /s Dec. 13, 1967, result of freezeup.





1 37

14306090

120183


n

50 5050505050505050

250%

323335384144464852

520%

24 2629323537394146

1010%

20 2225293134363843

205%

16 1923262932343640

502%

12 1620242629313338

1001%

9.8 1418222528293237



1 37

15306090



n

51 515151515151

250%

684 620558488418350301

520%

1090 972845729627524450

1010%

1410 12201030880763641553

254%

1870 155012501060930790686

502%

2250 1810141011801050901786

1001%

2670 20701560130011701010887



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

573 917 2530 3030


38

MALHEUR RIVER BASIN

13217500 NORTH FORK MALHEUR RIVER AT BEDLAH, OR

LOCATION. Lat 43°54'28", long 118°09'08", in NW 1/4 NE 1/4 sec.22, T.19 S. r R.37 E., Malheur County, Hydrologic Unit 17050116, on left bank at Beulah, 0.3 mi downstream from Agency Valley Dam, 12 mi northwest of Juntura, and at mile 14.5.


PERIOD OF RECORD. June 1926 to 1987. Published as "near Beulah" June 1926 to September 1935.

REVISED RECORDS.--WSP 1397: 1927-32, 1934, drainage area.

GAGE. Water-stage recorder. Datum of gage is 3,261.20 ft above National Geodetic Vertical Datum of 1929. Prior to Apr. 25, 1926, water-stage recorder at site 1 mi downstream at different datum. Apr. 25, 1936, to Sept. 30, 1949, nonrecording gage at site 20 ft downstream at datum 1.0 ft higher. Oct. 1, 1949, to June 30, 1964, at present site at datum 1.0 ft higher.

REMARKS. Flow regulated since 1935 by Beulah Reservoir (station 13217000). Diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,000 ft 3/s May 7, 1942, gage height, 9.4 ft, present datum, from floodmark, caused by failure of gates at Agency Valley Dam, from rating curve extended above 1,100 ft /s on basis of computation of peak flow over dam; no flow at times.


[n * number of values used to compute statistics]


(Low-flow statistics uncertain due to excessive zero events]


1 37

14306090

120183


n

50 5050505050505050

0 00000008

250%

.1

.1

.1

.1

.2

.2

.2

.3

.9

520%

0.0 0 0.0 00.0 00.0 00.1 00.1 00.1 00.1 02.7 1

1010%

.0

.0

.0

.0

.0

.0

.0

.1

.4

205%

0.0 0.00.00.00.00.00.00.10.8

0 00000000

502%

.0

.0

.0

.0

.0

.0

.0

.0

.4

1001%

0.0 0.00.00.00.00.00.00.00.2



1 37

15306090



n

51 515151515151

250%

592 580545494435376342

520%

1030 968855743629530476

1010%

1440 13001100934771639566

254%

2120 183014601200964785683

502%

2770 2300177014301120900771

1001%

3560 28602100167012801020860



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n -= historical n - Weighted skew =

39

MALHEUR RIVER BASIN

13220000 MALHEUR RIVER AT LITTLE VALLEY, NEAR HOPE, OR

LOCATION. Lat 43°53'08", long 117°30'25", in SE 1/4 SE 1/4 sec.24, T.19 S., R.42 E., Malheur County, Hydrologic Unit 17050117, on right bank 500 ft downstream from highway bridge at Little Valley, 8 mi southwest of Hope, 14 mi southwest of vale, and at mile 45.6.


PERIOD OF RECORD. April 1949 to September 1979.

GAGE. Water-stage recorder. Datum of gage is 2,424.03 ft above National Geodetic Vertical Datum of 1929.

REMARKS. Flow regulated by Warmsprings and Beulah reservoirs. Vale-Oregon Canal diverted 163,700 acre-ft upstream from station at Namorf in sec.31, T.20 S., R.41 E., for supplying Bully Creek Reservoir and for irrigation. Many small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. The two greatest floods occurred March 1894 and March 1910, on basis of records for former station near Namorf.





1 37

14306090

120183


n

29 2929292929292929

250%

21 2223273338414567

520%

14 1516182126303448

1010%

11 1212141620252939

205%

9.3 9.510111315202433

502%

7.47.57.98.79.111162026

1001%

6.3 6.36.67.37.38.8131823



1 37

15306090



n

30 303030303030

250%

1590 1270934653495375318

520%

3810 2980209014301030752601

1010%

5830 45503140216015501120869

254%

8970 702048103380243017701330

502%

11700 920063004520328024101770

1001%

14700 1170080205890432032202320



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n - historical n = Weighted skew =

40

MALHEUR RIVER BASIN

13220500 MALHEUR RIVER NEAR HOPE, OR

LOCATION.---Lat 430 56'40", long 117°28'50", in SW1/4 sec.5, T.19 S., R.43 E., Malheur County, Hydrologic Unit 17050117, 0.5 mi upstream from intake of Vines Canal, 5.5 mi west of Hope, and 12 mi west of Vale.


PERIOD OF RECORD. March 1922 to September 1949.

GAGE.--Water-stage recorder. Elevation of gage is 2,370 ft (from topographic map).

REMARKS. Since March 1930, Vale-Oregon Canal has diverted at Namorf for irrigation upstream and downstream from station. Many small diversions for irrigation upstream from station. Flow regulated by Warmsprings Reservoir and, since December 1935, by Agency Valley Reservoir.

AVERAGE DISCHARGE. 19 years (water years 1930-49), 187 ftVs.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,100 ft 3/s Feb. 5, 1925, gage height, 8.1 ft, from rating curve extended above 2,800 ft 3 /s; minimum, 3.5 ftVs Sept. 2, 1919.





1 37

14306090

120183

DISCHARGE, IN FT 3/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

n

13 1313131313131313

250%

24 2527303443465374

520%

17 1819212532343854

1010%

15 1516182128303245

205%

50 1002% 1%

:: :: MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

14 141414141414

250%

1940 1370942712538436377

520%

3440 2390170014001090865710

1010%

4340 303022802020163012701020

254%

5310 376030602990254019501540

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

Systematic n = historical n = Generalized 17b skew =

41

MALHEUR RIVER BASIN

13226500 BULLY CREEK AT WARMSPRINGS, NEAR VALE, OR

LOCATION. -Lat 44°01'10", long 117°27'35", in SE 1/4 NW 1/4 sec.9, T.18 S., R.43 E., Malheur County, Hydrologlc Unit 17050118, on left bank 400 ft downstream from Cottonwood Creek, 4.7 ml upstream from Bully Creek Dam, 11.4 mi northwest of Vale, and at mile 17.2.


PERIOD OF RECORD. September 1903 to February 1904, February 1905 to March 1907, February 1910, January 1911 to May 1917, March 1922 to June 1923, October 1963 to September 1985. Monthly discharge only for some periods, published in WSP 1317. Published as "near Vale" 1903, 1907, and as "above Vale" 1904-6, 1910.

GAGE. Water-stage recorder. Datum of gage is 2,527.21 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench mark). Prior to July 1, 1923, nonrecording gages within 0.5 mi downstream at different datums.

REMARKS. No regulation. Many diversions for irrigation upstream from station.

AVERAGE DISCHARGE.--28 years (water years 1906, 1912-16, 1964-85), 53.6 ft 3/s, 38,830 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,800 ft 3/s Dec. 22, 1964, gage height, 8.68 ft, from rating curve extended above 200 ft /s on basis of slope-area measurement of peak flow; no flow at times.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

21 2121212121212121


250%

0 00011.234

.6

.6

.7

.9

.3

.8

.3

.0

.6

520%

0 00000112

.2

.3

.3

.3

.5

.8

.0

.4

.4

10 2010%

0, 0,0.0.0,0,0,01.

.1

.2

.2

.2

.3,5.7.9.7

0, 0,0,0.0,0.0,0,1.

5%

.1

.1

.1

.1

.2

.4

.5

.7

.3

502%

0.0 0.00.00.10.10.20.30.41.0

1001%

__



1 37

1530 *

6090



n

22 222222222222

250%

1180 847611402259178142

520%

2540 17001200809538373295

1010%

3450 220015101030715503398

254%

4520 271017801250908652518

502%

5210 3000192013601030750597

1001%

--



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

964 13200 17300


42

MALHEUR RIVER BASIN

13227000 BULLY CREEK NEAR VALE, OR

LOCATION. Lat 43°57'30", long 117°20'30", in SW1/4 sec.33, T.18 S., R.44 E., Malheur County, Hydrologic Unit 17050118, on right bank. 5 mi southwest of Vale and 7 mi upstream from mouth.


PERIOD OF RECORD. May 1933 to September 1934, November 1934, March 1935, March, April 1936, June 1937 to September 1962. Monthly discharge only for some periods, published in WSP 1317.

GAGE. Water-stage recorder and concrete control. Elevation of gage is 2,313 ft (by levels to reference point furnished by Union Pacific Railroad). Prior to Mar. 15, 1937, water-stage recorder or staff gage at site 2 mi upstream at different datum. Mar. 15, 1937, to Jan. 1, 1940, water-stage recorder at present site at datum 0.38 ft higher.

REMARKS. Occasional fluctuations caused by releases from Vale-Oregon Canal which diverts water from Malheur River for irrigation of lands west of Vale; considerable return flow at times enters Bully Creek upstream from station. Diversions for irrigation of about 7,000 acres upstream from station.

AVERAGE DISCHARGE. 26 years (water years 1934, 1938-62), 40.4 ft 3 /s, 29,250 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,980 ftVs Feb. 24, 1957, gage height, 10.5 ft, from floodmarks, from rating curve extended above 2,000 ft /s on basis of slope-area measurement of peak, flow; no flow at times.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

24 2424242424242424


250%

4.7 5.36.16.77.88.89.51012

520%

2 2334,4557,

.7

.9

.4,7.3.8,3.9.1

1010%

1.9 2.12.42.62.93.33.64.15.0

205%

1.5 1.51.71.82.02.32.63.03.6

502%

1.11.11.21.21.31.41.61.92.4

1001%



1 37

15306090



n

26262626262626

250%

447 3272371861369775

520%

1160 897649496353250187

1010%

1760 14101020766543384282

254%

2600 217015601150817576417

502%

3240 2800200014601040730524

1001%

3880 3440246017701260889634



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3850 8760 11500

Systematic n = 26 historical Weighted skew = -0.290

43

MALHEUR RIVER BASIN

13228000 MALHEUR RIVER AT VALE, OR

LOCATION. Lat 43°58'50", long 117°14'20", in NW1/4 sec.29, T.18 S., R.45 E., Malheur County, Hydrologic Unit 17050117, at road bridge at Vale and 0.2 mi downstream from Bully Creek.


PERIOD OF RECORD. April 1890 to September 1891, January 1895 to September 1896, June 1903 to September 1906, June 1908 to September 1914.

GAGE. Staff gage. Elevation of gage is 2,230 ft (from topographic map). Prior to Mar. 20, 1919, staff or chain gages at different datums.

REMARKS. Many diversions upstream from station for irrigation upstream and downstream from station. Flow slightly regulated since 1915 by Vale-Oregon Irrigation Co. dam on Bully Creek.

AVERAGE DISCHARGE. 11 years (water years 1896, 1904-1906, 1909-1914), 541 ft 3 /s.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 22,800 ft 3/s Mar. 2, 1910, gage height, 19.5 ft, datum then in use, from floodmark, from rating curve extended above 3,600 ft 3 /s; minimum, 4 ft 3 /s July 19-21, 1895, Aug. 23, 1906.




[Low-flow statistics not computed-Less than 10 non-zero events recorded]


1 37

14306090

120183

DISCHARGE, IN

INTERVAL,

FT 3/S, FOR

IN YEARS,

INDICATED RECURRENCE

AND ANNUAL NON-EXCEEDANCE PROBABILITY, IN PERCENT

2 550% 20%

1010%

::

205%

502%

1001%



1 37

15306090



n

10 101010101010

250%

4420 342027602370188014601210

520%

7950 604050504300335024902070

1010%

11200 843070505980469034402860

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

19800

Systematic n = 10 historical n = 0 Generalized 17b skew = -0.127

44

BURNT RIVER BASIN

13269300 NORTH FORK BURNT RIVER NEAR WHITNEY, OR

LOCATION. Lat 44°36'00", long 118°15'10", In NE1/4 sec.23, T.ll S., R.36 E., Baker County, Hydrologlc Unit 17050202, Wallowa Whitman National Forest, on right bank 950 ft upstream from Petticoat Creek, 1.0 mi downstream from U.S. Bureau of Reclamation damsite, 4.5 mi southeast of Whitney, and 11.5 mi northwest of Unity.


PERIOD OF RECORD. June 1964 to June 1978, January 1979 to June 1980, January to June only, each year.

GAGE.--Water-stage recorder. Elevation of gage is 4,000 ft, from topographic map.

REMARKS. Some regulations from irrigation and mining operations upstream. A transmountain diversion from headwaters of Middle Fork John Day River delivers as much as 12 ft/s to North Fork Burnt River upstream from station.

AVERAGE DISCHARGE. 13 years (water years 1965-77), 49.8 ftVs, 36,080 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,190 ft 3 /s Apr. 6, 1971, gage height, 4.31 ft; maximum gage height, 4.95 ft Jan. 29, 1965 (ice jam); minimum discharge, 0.14 ft 3 /s Aug. 15, 1977, but may have been less when stage fell below inlets July 19 to Aug. 17, 1966.


In = number of values used to compute statistics]



1 37

14306090

120183



n

13 1313131313131313

0 00001124

250%

.6

.6

.6

.7

.9

.2

.7

.3

.3

5 10 20 50 10020% 10% 5% 2% 1%

0.3 0.2 0.3 0.20.3 0.20.4 0.30.5 0.40.7 0.51.0 0.71.4 1.13.1 2.6



1 37

15306090



n

13 131313131313

250%

546 488420346279212162

520%

800 697611500429330253

1010%

887 762674547484374289

25 50 1004% 2% 1%

__


DISCHARGE, IN FT/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

403 1000


45

BURNT RIVER BASIN

13270800 SOUTH FORK BURNT RIVER ABOVE BARNEY CREEK, NEAR UNITY, OR

LOCATION. Lat 44°24'25", long 118°18'01", In NW1/4SE1/4 sec.28, T.13 S., R.36 E., Baker County, Hydrologic Unit 17050202, Wallowa Whitman National Forest, on right bank 84 ft upstream from Barney Creek and 6 mi southwest of Unity.

DRAINAGE AREA.--38.5 mi 2 .

PERIOD OF RECORD.--March 1963 to September 1981.

GAGE.--Water-stage recorder. Datum of gage is 4,341.75 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation). Prior to July 18, 1963, nonrecording gage at site 220 ft upstream at datum 5.47 ft higher, July 18, 1963, to July 18, 1979, at site 215 ft upstream at datum 5.31 ft higher.

REMARKS. No regulation or diversion upstream from station.

AVERAGE DISCHARGE. 18 years, 27.2 ftVs, 19,710 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 186 ft 3 /s Apr. 29, 1965, gage height, 1.98 ft, site and datumthen in use; maximum gage height, 3.57 ft Jan. 10, 1974 (backwater from ice), site and datum then in use; minimum discharge, 11 ft /s Feb. 12, 1978, but may have been less during period of no gage-height record Nov. 20 to Dec. 5, 1977.





1 37

14306090

120183


n

18 1818181818181818

250%

16 1718181920202121

520%

14 1516171718191920

1010%

13 1414161718181819

205%

12 1313151617181818

50 1002% 1%

-- --



1 37

15306090



n

18 181818181818

250%

71 686560534641

520%

1061029687756253

1010%

129125116104897362

254%

158 1531401271068672

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

49 74


46

BURNT RIVER BASIN

13273000 BURNT RIVER NEAR HEREFORD, OR

LOCATION. Lat 44°30'14", long 118°10'35", in SE 1/4 sec.21, T.12 S., R.37 E., Baker County, Hydrologic Unit 17050202, on left bank 800 ft downstream from Unity Dam, 0.4 mi upstream from Van Cleve ditch, 7 mi west of Hereford, and at mile 63.5.


PERIOD OF RECORD. March to September 1915, April to September 1916, October 1928 to 1987. Monthly discharge only for some periods, published in WSP 1317.

REVISED RECORDS.--WSP 903: 1939. WSP 1397: 1916, 1930, 1930(M).

GAGE. Water-stage recorder. Datum of gage is 3,758.19 ft above National Geodetic Vertical Datum of 1929.Oct. 1, 1943, to Oct. 31, 1966, water-stage recorder at site 450 ft downstream at datum 1.44 ft lower. See WSP 1317 or 1737 for history of changes prior to Oct. 1, 1943.

REMARKS. Flow regulated since 1938 by Unity Reservoir (station 13272500). Diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 59 years (water years 1929-87), 87.4 ftVs, 63,320 acre-ft/yr.

EXTREMES FOR PERIOD OF.RECORD. Maximum discharge, 2,220 ftVs Apr. 17, 1943, gage height, 5.91 ft, present datum, from rating curve extended above 1,300 ft /s; maximum gage height, 9.07 ft Apr. 8, 1971; no flow at times; minimum discharge before construction of Unity Dam, 1.6 ft 3 /s Aug. 31, 1935.





1 37

14306090

120183

n

48 4848484848484848



250%

1.2 1.52.22.64.05.48.01125

520%

0.1 0.20.40.61.01.82.74.312

1010%

0.0 0.00.10.30.40.91.42.47.5

205%

0.0 0.00.00.10.20.50.81.44.9

502%

0.0 0.00.00.00.10.30.40.82.9

100

0,0,0,0,0,0,0,0,2

1%

.0

.0

.0

.0

.0

.2

.3

.5

.0



1 37

15306090



n

48 484848484848

250%

465 452419359297235200

520%

771 746682574466358296

1010%

984 951861724583440362

254%

126012101090916734545445

502%

1460 141012501060848623508

1001%

1670 160014201200963700571



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


47

BURNT RIVER BASIN

13274200 BURNT RIVER NEAR BRIDGEPORT, OR

LOCATION. Lat 44°32'27", long 117°41'10", in NW1/4NW1/4 sec.10, T.12 S., R.41 E., Baker County, Hydrologic Unit 17050202, on left bank 0.5 mi downstream from Dark Canyon, 4.6 mi upstream from Deer Creek, 5.0 mi northeast of Bridgeport, and at mile 37.1.


PERIOD OF RECORD. October 1956 to September 1980.


REMARKS. Flow regulated since 1938 by Unity Reservoir. Many diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,600 ft 3 /s Apr. 9, 1971, gage height, 6.40 ft; minimum, 5.2 ft 3 /s

Dec. 5, 1972.




DISCHARGE, IN FT /S, FOR INDICATED RECURRENCE PERIOD INTERVAL, IN YEARS, AND ANNUAL NON- ICON- EXCEEDANCE PROBABILITY, IN PERCENT

SECU- ____________________________________________________ TIVE 2 5 10 20 50 100 DAYS) n 50% 20% 10% 5% 2% 1%

I 2315 10 O 679 576 3 23 16 11 9.0 7.6 6.27 23 17 12 9.9 8.3 6.7

14306090

120183

232323232323

182124262940

141618192230

111415161825

101213141621

8.61111121318

--



1 37

15306090



n

24 242424242424

250%

533 501448387324250208

520%

988 928826703590446365

1010%

1310 12301100929781584472

254%

1720 1610144012201030758605

502%

2030 1880170014401210885701

1001%



1.2525102550Too 80% 50% 20% 10% 4% 2% 1%


BURNT RIVER BASIN

13275000 BURNT RIVER AT HUNTINGTON, OR

LOCATION. Lat 44°21'30", long 117°16'20", in NEl/4 sec.13, T.14 S., R.44 E., Baker County, Hydrologic Unit 17050202, on right bank 0.5 mi northwest of Huntington and at mile 2.9.

DRAINAGE AREA. 1,093 mi2 .

PERIOD OF RECORD. September 1928 to September 1932, October 1956 to September 1959, June 1962 to September 1980.

GAGE. Water-stage recorder. Datum of gage is 2,104.75 ft above National Geodetic Vertical Datum of 1929.Sept. 13, 1928, to Sept. 30, 1932, nonrecording gage at site 200 ft upstream at different datum. Oct. 1, 1956, to Sept. 30, 1959, water-stage recorder and Oct. 1, 1959, to Aug. 20, 1962, crest-stage gage.

REMARKS. Flow regulated since 1938 by Unity Reservoir. Diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,220 ft 3 /s Dec. 22, 1964, gage height, 5.94 ft; maximum gage height, 6.80 ft Feb. 3, 1963 (ice jam); no flow at times.





1 37

14306090

120183


n

19 1919191919191919

250%

242730344046515561

520%

13 1416202429323643

1010%

8.6 9.611141821232633

205%

6.0 6.78.2101316172026

50 1002% 1%

__ __ __ ____ _



1 37

15306090



n

21 212121212121

250%

811 741632511429333285

520%

1420 12801090911778598503

1010%

1800 1630140011901030792659

254%

2250 20201760154013501050863

502%

2540 229020101800159012401020

1001%

::



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

49

POWDER RIVER BASIN

13275300 POWDER RIVER NEAR SUMPTER, OR

LOCATION. Lat 44°40'20", long 117°59'40", in NE 1/4 NE 1/4 sec.25, T.10 S., R.38 E., Baker County, HydrologicUnit 17050203, Wallowa Whitman National Forest, on left bank 1,200 ft downstream from Mason Dam, 1.4 mi upstream from California Gulch, 11.4 mi southeast of Sumpter, and at mile 123.2.

DRAINAGE AREA. 168 mi 2 , approximately. Prior to Oct. 1, 1970, 170 mi 2 at cableway, 0.5 mi downstream.

PERIOD OF RECORD. April 1965 to 1987.

GAGE. Water-stage recorder. Datum of gage is 3,898.47 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench mark). Prior to July 29, 1965, nonrecording gage at datum 1.03 ft higher.

REMARKS. Flow completely regulated since Oct. 31, 1967, by Phillips Lake, active capacity, 90,540 acre-ft. Many small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 22 years, 115 ft 3 /s, 83,320 acre-ft/yr, not adjusted for storage in Phillips Lake.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge observed, 971 ft 3 /s Apr. 30, 1965, gage height, 4.43 ft; no flow Nov. 12, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum discharge, 1,600 ftVs, approximately, Mar. 20, 1910, based on comparison with records for station downstream, near Baker.





1 37

14306090

120183


n

19 1919191919191919

250%

4.4 5.25.66.46.87.17.78.014

520%

1.5 2.02.12.73.34.04.74.97.2

1010%

0.7 0.91 .01.32.02.83.43.85.0

000012233

205%

.3

.4

.5

.7

.2

.0

.6

.0

.7

50 1002% 1%

_ _ __ __



1 37

15306090



n

20 202020202020

250%

467 455438408363311283

520%

539 530518497460416371

1010%

574 567560548521488429

254%

609 603603606597583503

502%

629 625630646652657559

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


historical n

50

POWDER RIVER BASIN

13275500 POWDER RIVER NEAR BAKER, OR

LOCATION. Lat 44°39'20", long 117°52'30", in NE1/4 sec.36, T.10 S., R.39 E., Baker County, Hydrologic Unit 17050203, on right bank 700 ft downstream from Stices Gulch, 8.5 mi south of Baker, and at mile 116.2.


PERIOD OF RECORD. December 1903 to August 1914, July 1926 to September 1968. Monthly discharge only for some periods, published in WSP 1317. Published as "near Baker City" December 1903 to December 1905, and as "at Salisbury" January 1906 to August 1914, October 1928 to September 1951.

GAGE. Water-stage recorder and concrete-filled bag control. Datum of gage is 3,632.31 ft above National Geodetic Vertical Datum of 1929. Dec. 20, 1903, to Feb. 29, 1912, staff gage at site 400 ft upstream at different datum. Mar. 1, 1912, to Aug. 1, 1914, and June 6, 1926, to Oct. 15, 1933, staff gage at site 0.4 mi downstream at different datum. Oct. 16, 1933, to Sept. 3, 1965, graphic water-stage recorder at present site and datum.

REMARKS. Flow regulated since Oct. 31, 1967, by Phillips Lake (active capacity, 90,540 acre-ft). Many small diversions for irrigation upstream from station. At times Auburn ditch diverts water into basin upstream from station.

AVERAGE DISCHARGE. 51 years (water years 1905-13, 1927-68), 110 ft 3 /s, 79,640 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,820 ft 3 /s Mar. 20, 1910, gage height, 7.05 ft, site and datum then in use; no flow Aug. 31, 1909, Sept. 7, 1931.


[n = number of values used to compute statistics)


PERIOD (CON- SECU-'TIVEDAYS)

1 37

14306090

120183

n

48 4848484848484848


4 45568

250%

.5

.5

.1

.7

.3

.3111320

1 1112357

520%

.2

.3

.6

.9

.3

.6

.2

.312

1010%

0.4 0.60.70.91.22.13.35.09.3

205%

0.1 0.30.30.40.61 .22.13.57.2

50

0 00000125

2%

.0

. 1

.1

.2

.3

.6

.2

.3

.3

100

0 00000014

1%

.0

.0

.1

.1

.1

.4

.8

.7

.3



1 37

15306090



n

48 484848484848

250%

675 641589525447373320

520%

952 893810717609512438

1010%

1110 1030925813694591504

254%

1290 11801040908782677575

502%

1410 12701110964836732622

1001%

1510 135011701010881782662



1.25 80%

250%

5 20%

1010%

25 4%

50 2%

1001%

479 725 1050 1250 1480 1640 1800


51

POWDER RIVER BASIN

13277000 POWDER RIVER AT BAKER, OR

LOCATION.--Lat 44°46'06", long 117°49'50", in SB 1/4 NE 1/4 sec.20, T.9 S., R.40 E., Baker County, Hydrologic Unit 17050203, on right bank 600 ft upstream from Myrtle Street Bridge in Baker, 0.5 mi downstream from Sutton Creek, and at mile 107.6.


PERIOD OF RECORD.--May to September 1913, April to July 1914, November 1971 to 1987. Monthly dischargeonly May 1913, April 1914 published in WSP 1317. November 1971 to September 1978 in reports of Oregon Water Resources Department.

REVISED RECORDS. WSP 1317: 1913.

GAGE. Water-stage recorder. Datum of gage is 3,441.71 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 19, 1971, nonrecording gage at site 0.7 mi downstream at different datum.

REMARKS. Flow regulated since Oct. 31, 1967, by Phillips Lake, active capacity, 90,540 acre-ft. Old Settlers Slough diverts from left bank 0.2 mi upstream for irrigation downstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,120 ft 3/s Jan. 15, 1974, gage height, 5.55 ft; maximum gage height, 5.57 ft Jan. 5, 1984 (ice jam); minimum discharge, 0.7 ft 3 /s Oct. 28, 29, 1973.





DISCHARGE, IN FT 3 /S, FOR


1 37

14306090

120183

INTERVAL,EXCEEDANCE

2 550% 20%

II II

IN YEARS,INDICATEDAND ANNUAL

RECURRENCENON-

PROBABILITY, IN PERCENT

1010%

II

205%

II ~*

502%

II

1001%

II --



1 37

15306090



n

10 101010101010

250%

488 433411374318266240

520%

594 538519486427382349

1010%

651 604587559503469431

25 50 1004% 2% 1%



T725 2 5 10 25 50 TOO 80% 50% 20% 10% 4% 2% 1%


52

POWDER RIVER BASIN

13286700 POWDER RIVER NEAR RICHLAND, OR

LOCATION. Lat 44°46'40", long 117°17'30", in SE 1/4 sec.14, T.9 S., R.44 E., Baker County, Hydrologic Unit 17050203, on left bank 0.4 mi upstream from Upper Timber Canyon, 6.0 mi west of Richland, and at mile 20.3.




REMARKS. Flow regulated by Phillips Lake since October 1967, usable capacity, 90,540 acre-ft, Wolf Creek Reservoir since April 1975, usable capacity, 10, 400 acre-ft, Thief Valley Reservoir since February 1932, usable capacity, 17,400 acre-ft, and Pilcher Creek Reservoir since April 1984, usable capacity, 5,560 acre-ft. Diversions for irrigation upstream and downstream from station.

AVERAGE DISCHARGE. 30 years, 278 ft 3/s, 201,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,090 ft 3/s Feb. 21, 1982, gage height, 7.50 ft, from floodmark; maximum gage height, 9.29 ft Jan. 15, 1974 (ice jam); minimum discharge, 0.80 ft /s Aug. 11, 12, 1966.






1 37

14306090

120183


FT3 /S, FORIN YEARS,

INDICATEDAND ANNUAL

RECURRENCENON-


2 550% 20%

1010%

205%

_

502%

_

1001%

_



1 37

15306090



n

10 101010101010

250%

1120 10701000894736541467

520%

1840 1770162014001140836738

1010%

2480 23802140180014601090971

25 50 1004% 2% 1%

:: :: :: MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

2000

Systematic n = 10 historical r Generalized 17b skew = -0.165

53

POWDER RIVER BASIN

13286700 POWDER RIVER NEAR HIGHLAND, OR Continued





1 37

14306090

120183


n

19 1919191919191919

250%

17 2331384150586174

520%

8.71116212431353743

1010%

5.67.09.9131723262832

205%

3.8 4.46.28.41218202225

50 1002% 1%

_ _



1 37

15306090



n

20 202020202020

250%

1500 137012001010864729646

520%

2370 221019301610137011601050

1010%

2810 264023201940163013901280

254%

3210 306026902260190016301520

502%

3430 329029002450205017801660

1001%



1.25 80%

250%

5 20%

1010%

25 4%

50 2%

1001%


historical n =

54

POWDER RIVER BASIN

13288200 EAGLE CREEK ABOVE SKULL CREEK, NEAR NEW BRIDGE, OR

LOCATION. Lat 44°52'50", long 117°15'10", in SE 1/4 sec.7, T.8 S., R.45 E., Baker County, Hydrologic Unit17050203, Wallowa-Whitman National Forest, on left bank 0.5 mi upstream from Skull Creek, 6.5 mi northwest of New Bridge, and at mile 10.5.




REMARKS. No regulation. Some diversions upstream from station for irrigation and one small interbasin diversion for irrigation supply. All diversions are small compared to flow at station during irrigation season.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,310 ftVs July 12, 1975, gage height, 5.06 ft, from rating curve extended above 2,500 ft 3 /s on basis of slope-area measurement of peak flow; maximum gage height, 6.88 ft Jan. 25, 1962 (ice jam); minimum daily discharge, 30 ftVs Nov. 28, 1976.





1 37

14306090

120183


n

29 2929292929292929

250%

64 66717682909499

107

520%

51 5660657177808592

1010%

44 5256606671747985

205%

39 4852566266697481

502%

34 4548525861647076

1001%

31 4346495558626774



1 37

15306090



n

30 303030303030

250%

1910 17801640148013101070893

520%

2340 221020501830158013101090

1010%

2530 242022301980167014101160

254%

2710 261024002110173015001220

502%

2800 272025002170175015401250

1001%

2880 281025702210177015701270



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

3270 3880 4830

Systematic n - 30 historical n = 0 Weighted skew - 0.298

55

POWDER RIVER BASIN

13289500 POWDER RIVER NEAR ROBINETTE, OR

LOCATION. Lat 44°46'10", long 117°04'10", in E-l/2 sec.22, T.9 S., R.46 E., Baker County, Hydrologic Unit 17050203, on left bank. 2.2 mi northwest of Robinette and 2.5 mi upstream from mouth.


PERIOD OF RECORD. September 1928 to September 1957.

GAGE. Water-stage recorder. Datum of gage is 1,937.10 ft above National Geodetic Vertical Datum of 1929. Prior to Aug. 24, 1936, staff gage at site 0.5 mi upstream at different datum. Aug. 24, 1936, to Oct. 31, 1948, staff gage at site 50 ft upstream at present datum.

REMARKS.--Flow partly regulated by several reservoirs, the largest being Thief Valley Reservoir (capacity, 17,000 acre-ft). Many diversions for irrigation upstream from station. One canal with capacity of about 5 ft 3 /s diverts around station on left bank.


EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,500 ft 3 /s May 27, 1956, gage height, 6.38 ft; minimum observed, 18 ft 3 /s Sept. 2-10, 1931.





1 28 3 287 28

14 2830 2860 2890 28

120 28183 28


1 29 3 297 29

15 2930 2960 2990 29


INTERVAL, IN YEARS, AND ANNUAL NON-EXCEEDANCE PROBABILITY, IN PERCENT

2 5 10 20 50 10050% 20% 10% 5% 2% 1%

66 39 29 22 16 12 69 42 31 23 17 1373 44 33 25 18 1478 47 34 26 19 1584 50 37 28 20 1695 57 42 32 23 18

107 65 48 36 26 20122 77 58 44 32 26150 101 81 66 52 44

MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOWBASED ON PERIOD OF RECORD 1929-1957


INTERVAL, IN YEARS, AND ANNUALEXCEEDANCE PROBABILITY, IN PERCENT

2 5 10 25 50 10050% 20% 10% 4% 2% 1%

2510 3680 4360 5130 5630 6080 2370 3480 4130 4860 5340 57702190 3280 3930 4670 5170 56201980 2980 3590 4280 4750 51701700 2540 3070 3680 4100 44901480 2150 2560 3020 3330 36101290 1870 2230 2640 2930 3190

MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOWBASED ON PERIOD OF RECORD 1929-1957

DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCE INTERVAL, INYEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

1660

2 5 10 25 50 100 50% 20% 10% 4% 2% 1%

2630 3960 4800 5810 6520 7200


56

PINE CREEK BASIN

13290190 PINE CREEK NEAR OXBOW, OR

LOCATION. Lat 44°57'13«, long 116°52'21", in NE 1/4 SW 1/4 sec.17, T.7 S., R.48 E., Baker County, Hydrologic Unit 17050201, 1.8 mi south of Oxbow, and at mile 1.9.


PERIOD OF RECORD. November 1966 to 1987.

GAGE. Water-stage recorder. Datum of gage is 1,850.48 ft above National Geodetic Vertical Datum of 1929 (levels by Idaho Power Co.). Prior to Aug. 24, 1967, nonrecording gage at site 1.7 mi downstream at different datum.

REMARKS. Diversions upstream from station for irrigation of about 19,000 acres (1966 determination).


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,110 ftVs Feb. 21, 1968, gage height, 9.82 ft; minimum discharge, 10 ftVs Aug. 17-24, 1977, gage height, 2.12 ft.




PERIOD .(CONSECUTIVEDAYS)

1 37

14306090

120183


n

20 2020202020202020

250%

36 36384042495665

100

520%

25 2526272934404772

1010%

20 2021212427323960

205%

16 1617172022263351

502%

12 1213131617202742

1001%

_



1 37

15306090



n

20 202020202020

250%

2550 21801870158013201120992

520%

3600 284022601830152012601120

1010%

3980 301023301860154012701130

254%

4240 310023601860155012701130

502%

4350 313023601870155012701130

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2010 3020 4590 5750 7330 8590

Systematic n * 21 historical n = 0 Weighted skew = 0.099

57

IMNAHA RIVER BASIN

13292000 IMNAHA RIVER AT IMNAHA, OR

LOCATION. Lat 45°33'45", long 116°50'00", in SW 1/4 sec.16, T.I N., R.48 E., Wallowa County, Hydrologic Unit 17060102, on left bank, at Imnaha, 0.3 mi downstream from Big Sheep Creek., and at mile 19.3.



REVISED RECORDS. WSP 833: 1938. WSP 1397: 1929, 1932(M), 1949. WSP 1737: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 1,941.14 ft above National Geodetic Vertical Datum of 1929. Prior to Aug. 6, 1934, nonrecording gage at site 0.25 mi upstream at different datum. Aug. 6-31, 1934, nonrecording gage at present site and datum.

REMARKS. No regulation. Diversions for irrigation upstream from station. Water is diverted from Big Sheep Creek and tributaries upstream from station for irrigation in Wallowa River basin.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 10,100 ft 3/s Jan. 17, 1974, gage height, 7.86 ft, from rating curve extended above 3,500 ft /s; minimum discharge observed, 16 ft /s Nov. 22, 1931, result of freezeup;

minimum daily, 25 ft 3/s Nov. 22, 23, 1931.





1 37

14306090

120183


n

56 58565858 58585858

250%

71 8599

110121130139147168

520%

49 62788999

106113119130

1010%

40 5268808995

101106114

205%

34 45607281879296

102

502%

273752657378828690

1001%

24 3347606872768082



1 37

15306090



n

59 595959595959

250%

2470 231021301930174015401340

520%

3490 316028702570227019901720

1010%

4150 368033102940257022201900

254%

4980 430038203350288024502090

502%

5590 474041603630308026002200

1001%

6200 515044703880326027202300



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2700 4030 5010 6370 7470 8640

Systematic n » Weighted skew

59 historical n 0.207

58

GRANDE RONDE RIVER BASIN

13318500 GRANDE RONDE RIVER NEAR HILGARD, OR

LOCATION. Lat 45°19'06", long 118°16'15", near center of sec.11, T.3 S., R.36 E., Union County, Hydrologic Unit 17060104, on right bank, half a mile upstream from lower reservoir site of Bureau of Reclamation, 0.8 mi upstream from Spring Creek., and 3 mi southwest of Hilgard.


PERIOD OF RECORD. January 1938 to September 1956. Monthly discharge only prior to October 1945, published in WSP 1317.

GAGE. Water-stage recorder. Datum of gage is 3,058.05 ft above National Geodetic Vertical Datum of 1929. Prior to Sept. 16, 1946, water-stage recorder at site 800 ft upstream at different datum.

REMARKS. Several small diversions for irrigation upstream from station. Since 1909, city of La Grande has diverted about 3 ft /s for municipal use at Beaver Creek Reservoir (capacity, about 900 acre-ft).

AVERAGE DISCHARGE. 18 years (water years 1939-56), 274 ft 3/s, 198,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,060 ft 3/s May 8, 1956, gage height, 6.48 ft, from rating curve extended above 3,100 ft 3 /s; minimum, 6 ftVs Aug. 10, 12-29, Sept. 1-4, 1940.





1 37

14306090

120183

DISCHARGE, IN FT*/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

n

19 1919191919191919

250%

14 141516IB20232642

520%

9.6 9.810111215172028

1010%

8.0 8.28.59.19.812151923

205%

6.97.17.27.68.311141821

50 1002% 1%




1 37

15306090



n

19 191919191919

250%

1700 150013201150981860731

520%

2310 20601820158013501170991

1010%

2720 247021901870161013901170

254%

3250 302026902230196016701390

50 1002% 1%

II II -



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1630 2230 3030 3550


59


13318800 GRANDE RONDE RIVER AT HILGARD, OR

LOCATION. Lat 45°20'21", long 118°14'35", in NE 1/4 NE 1/4 sec.l, T.3 S., R.36 E., Union County, Hydrologic Unit 17060104, on left bank 8.8 mi northwest of La Grande, 1.6 mi upstream from Fivepoint Creek, and at mile 171.3.

DRAINAGE rtREA. 555 mi 2 .



REMARKS. Slight regulation by city of La Grande reservoir on Beaver Creek, capacity, about 900 acre-ft. Diversions for irrigation upstream from station. Since 1909, city of La Grande has diverted about 3 ft 3/s from Beaver Creek upstream from station for municipal use.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,740 ft 3/s Mar. 13, 1972, gage height, 7.18 ft; maximum gage height, 12.25 ft Jan. 15, 1974 (Ice jam); minimum discharge, 9.6 ft 3 /s Aug. 17, 18, 23, 1973.





1 37

14306090

120183


n

14 1414141414141414

250%

18 1921222429313352

520%

14 1516171922242640

1010%

12 1313141619212335

205%

11 1111121416182132

50 1002% 1%



1 37

15306090



n

15 151515151515

250%

2000 1790150012601080914801

520%

2650 233019701690145012301080

1010%

3110 269022901960165013801210

254%

3720 313027002290187015401340

50 1002% 1%

_ _



1.25 2 80% 50%

5 20%

10 10%

254%

50 2%

100 1%

1740 2380 3230

Systematic n = 15 historical n Generalized 17b skew = -0.111

60


13319000 GRANDE RONDE RIVER AT LA GRANDE, OR

LOCATION. Lat 45°20'47", long 118°07'26", in NW 1/4 SE 1/4 sec.36, T.2 S., R.37 E., Union County, Hydrologic Unit 17060104, on right bank 1.8 mi northwest of La Grande, 5.7 mi downstream from Fivepoint Creek, and at mile 164.0.


PERIOD OF RECORD.--October 1903 to September 1915, February 1918 to September 1923, October 1925 to 1987. Monthly discharge only for some periods, published in HSP 1317. Published as "at Hilgard" 1903-15.

REVISED RECORDS. WSP 768: 1933. WSP 1397: 1904-11, 1913, 1915, 1919-20, 1922-23, 1926, 1929-31, 1936-37, 1939, 1942. WSP 1737: Drainage area. WRD Oreg. 1974: 1973(M).

GAGE. Water-stage recorder. Datum of gage is 2,826.25 ft above National Geodetic Vertical Datum of 1929.Nov. 6, 1903, to Sept. 30, 1915, nonrecording gage at site 5.5 mi upstream at various daturns. Feb. 16, 1918, to June 28, 1923, and Oct. 1, 1925, to Nov. 23, 1931, nonrecording gage at site 0.7 mi downstream at various datums. Nov. 24, 1931, to Oct. 8, 1965, water-stage recorder at site 0.3 mi upstream at datum 4.61 ft higher.

REMARKS. Since 1915, slight regulation by city of La Grande reservoir on Beaver Creek, capacity, about 900acre-ft. Diversions for irrigation upstream from station. Since 1909, city of La Grande has diverted about 3 ft /s from Beaver Creek upstream from .station for domestic water supply.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 14,100 ft 3/s Jan. 30, 1965, gage height, 11.44 ft, site and datum then in use, from rating curve extended above 7,200 ft3 /s; minimum discharge, 3.9 ft /s Aug. 26, 1940.





1 37

14306090

120183


n

66 6666666666666666

250%

161718192225293355

520%

10 1111121417202435

1010%

8.0 8.38.89.71114172128

205%

6.4 6.66.97.89.312151923

502%

4.9 4.95.26.07.39.9131719

1001%

4.0 4.04.35.0 6.28.7111517



1 37

15306090



n

67 676767676767

250%

2830 247021201790150012601080

520%

4240 359029402450205017101460

1010%

5230 435034402830237019601680

254%

6550 533040403270273022401930

502%

7570 608044503560296024202090

1001%

8630 684048503830318025802240



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3260 4840 6040 7760 9190 10700


historical 0.376

61


13320000 CATHERINE CREEK NEAR UNION, OR

LOCATION.--Lat 45°09'20", long 117046'26", in NW 1/4 SE 1/4 sec.2, T.5 S., R.40 E., Onion County, Hydrologic Unit 17060104, on right bank 3.0 mi downstream from Little Catherine Creek, 5.5 mi southeast of Onion, and at mile 25.4.


PERIOD OF RECORD. May 1906 to May 1907 (gage heights only), August 1911 to December 1912, March toSeptember 1915, February 1918 to September 1919, October 1925 to 1987. Monthly discharge only for some periods, published in WSP 1317.

REVISED RECORDS. WSP 1397: 1912-13, 1919, 1926, 1928-33, 1937, 1939, 1940(M), 1941-43, 1950.

GAGE. Water-stage recorder. Datum of gage is 3,081.76 ft above National Geodetic Vertical Datum of 1929 (Oregon State Highway Department bench mark). Prior to Nov. 28, 1938, nonrecording gage at several sites within 1.8 mi of present site at various datums. Nov. 28, 1938, to May 16, 1939, water-stage recorder at site 400 ft downstream at datum 4.29 ft lower.

REMARKS. No regulation. Several small diversions for irrigation upstream from station. Since 1937, diversion to Big Creek, in Powder River basin provides a small part of the water used for irrigation in that basin.

AVERAGE DISCHARGE. 64 years (water years 1912, 1919, 1926-87), 119 ftVs, 86,220 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,740 ft 3/s May 27, 1948, gage height, 4.57 ft; minimum discharge, 6.5 ft 3 /s Feb. 4, 1955, result of freezeup; minimum daily, 8 ftVs Nov. 7, 1925.





1 37

14306090

120183


n

51 5151515151515151

250%

19 2122232527283035

520%

15 1718202123242529

1010%

14 1617182022232426

205%

13 1516171921212225

502%

11 1415161820202123

1001%

11 1314151719192022



1 37

15306090



n

64 646464646464

250%

697 666612539467393328

520%

931 889818712615505414

1010%

1070 1020936811699564459

254%

1240 11601070921791626504

502%

1360 12601160994852665532

1001%

1470 135012401060907698555



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

567 1170 1360 1490 1620

Systematic n = 66 historical n = 0 Weighted skew - -0.149

62


13323500 GRANDE RONDE RIVER NEAR ELGIN, OR

LOCATION. Lat 45°30'45", long 117°55'35", in NW 1/4 NW 1/4 sec.3, T.I S., R.39 E., Union County, Hydrologic Unit 17060104, on right bank. 700 ft upstream from abandoned highway bridge, 1.9 mi downstream from Willow Creek, 3.6 mi south of Elgin, and at mile 104.2.


PERIOD OF RECORD. August 1955 to September 1981.




EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,480 ft 3/s Feb. 2, 1965, gage height, 13.79 ft; no flow Aug. 20-24, 1973.




[Low-flow statistics uncertain due to upstream diversion]


1 37

14306090

120183

n

25 2525252525252525


250%

11 11132126334357

109

520%

4.1 4.55.46.89.515223575

1010%

2.3 2.53.23.84.68.9152662

205%

1.01.11.51.92.25.5102053

502%

0.0 0.00.00.20.82.96.51544

1001%

0.0 0.00.00.10.41.94.71240



1 37

15306090



n

26 262626262626

250%

3370 323029202550221018901690

520%

4580 441040603510303026102340

1010%

5230 504046904040346030002680

254%

5900 568053704600392034103020

502%

6310 607058104960420036603220

1001%

6660 640061905270444038703380



TT2525102550100 80% 50% 20% 10% 4% 2% 1%

2?80 34lO 4?00 5330 6200 68~107390


63


13323600 INDIAN CREEK NEAR IMBLER, OR

LOCATION. Lat 45026'00-, long 117°49'20-, S-l/2 sec.33, T.I S., R.40 E., Onion County, Hydrologic Unit 17060104, 600 ft upstream from North Fork and 7 mi southeast of Imbler.




REMARKS. No diversion or regulation upstream from station.

COOPERATION. Records for 1938-45 furnished by Oregon Water Resources Department.

AVERAGE DISCHARGE. 12 years (water years 1939-50), 41.5 ft 3/s.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 818 ft 3/s May 27, 1948, from rating curve extended above 400 ft 3 /s;

maximum gage height, 4.09 ft sometime during period Jan. 4-7, 1947 (ice Jam); minimum observed, 0.1 ft 3 /s Nov. 15, 1939.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183



n

12 1212121212121212

2 23333445

250%

.8

.9

.1

.4

.6

.8

.1

.6

.9

1 22222334

520%

.9

.0

.0

.2

.4

.8

.2

.5

.1

111112233

10 2010% 5%

.5

.5

.6

.7

.8

.4

.9

.1

.5

50 1002% 1%




1 37

15306090



n

12 121212121212

250%

369350314266227178138

520%

501 465406347298222no

1010%

591 538457393339243186

25 50 1004% 2% 1%

__



1.25 2 5 Jo 25 50 100 80% 50% 20% 10% 4% 2% 1%

305 427 590 694

Systematic n » 13 historical n - 0 Generalized 17b skew - -0.158

64


13325001 EAST FORK WALLOWA RIVER NEAR JOSEPH, OR

LOCATION. Lat 45°16'20", long 117°12'35", in NE 1/4 sec.29, T.3 S., R.45 E. f Wallowa County, Hydrologic Unit17060105, on left bank 0.2 mi upstream from confluence with West Fork, 1.0 mi upstream from Wallowa Lake, 5.5 mi south of Joseph, and at mile 0.2.


PERIOD OF RECORD. July 1924 to September 1983. Prior to October 1952, records published separatley as East Fork Wallowa River near Joseph and Wallowa Falls powerplant tailrace near Joseph.

GAGE.--Water-stage recorder and concrete control. Datum of gage is 4,517.69 ft above National Geodetic Vertical Datum of 1929 (Pacific Power & Light Co. bench mark). Prior to Apr. 8, 1950, nonrecording gage at same site and datum.

REMARKS. All records present herein include flow in Wallowa Falls powerplant tailrace of Pacific Power & Light Co. Most of low flow is diverted at dam 1.5 mi upstream into a conduit 1.0 mi above Wallowa Falls powerhouse and discharged into West Fork 0.4 mi below powerhouse.

AVERAGE DISCHARGE. 59 years, 21.9 ftVs, 28.87 in/yr, 15,870 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 450 ftVs July 25, 1937 (no flow in powerplant tailrace), from rating curve extended above 80 ft 3/s; minimum dally, 4.6 ftVs Feb. 17, 1978.


(n - number of values used to compute statistics]



1 37

14306090

120183

n

30 3030303030303030


250%

9.61010101112121314

520%

7.9 8.69.09.39.610111112

6788899

1010%

.9

.8

.4

.7

.9

.6

.81011

67888999

205%

.1

.1

.0

.2

.4

.0

.2

.710

50

5. 6.7.7.7.8.8,8.9,

2%

2.3.5,6,7,3,6.9.6

100

4.5,7.7,7.7,889.

1%

.6 ,8.1.3.3.8.2.5.1



1 37

15306090



n

31 313131313131

250%

100 958880715949

520%

131 124115103907360

1010%

149 1421321171018165

254%

172 1631531341148871

502%

187 1781681461229374

1001%

203 1921831581309777



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


65


13327500 WALLOWA RIVER AT JOSEPH, OR

LOCATION. Lat 45°20'15", long 117°13'35", in NW 1/4 sec.5, T.3 S., R.45 E., Wallowa County, Hydrologic Unit 17060105, on left bank 0.2 ml downstream from Wallowa Lake dam, 1.1 ml south of Joseph, and at mile 50.0.


PERIOD OF RECORD. November 1903 to August 1907, June 1908 to March 1914, May to September 1915, December 1926 to 1987. Monthly discharge only for some periods, published in WSP 1317. Published as "near Joseph" 1911.

REVISED RECORDS.--WSP 1397: 1906. WSP 1737: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 4,326.86 ft above National Geodetic Vertical Datum of 1929.Nov. 12, 1903, to Sept. 25, 1915, nonrecording gage at several sites at lake outlet or near present site at different datums.

REMARKS. Silver Lake ditch diverts at Wallowa Lake dam for irrigation northeast of Joseph. City of Joseph diverts less than 1.0 ft /s from Wallowa Lake for municipal use.

AVERAGE DISCHARGE. 60 years (water years 1928-87), 134 ft 3 /s, 35.75 in/yr, 97,080 acre-ft/yr, adjusted for storage and diversion.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,550 ft 3 /s June 10, 1969, gage height, 5.15 ft; no flow at times in some years.





1 37

14306090

120183

n

58 5858585858585858


250%

12 1314151620222327

5 6678

520%

.8

.2

.7

.5

.411121315

3 4455789

1010%

.8

.0

.5

.2

.9

.9

.7

.811

20

2, 2,3.3,4,6,6,7,9,

5%

.7

.8

.2,7,3.0.7,7.0

502%

1.7 1.82.12.63.04.35.05.96.8

100

1 11223455

1%

.3

.3

.6

.0

.4

.4

.0

.0

.7



1 37

15306090



n

57 575757575757

250%

559 552528486421365329

520%

730 710663591513439393

1010%

852 817752653564478426

254%

1020 957862724620519461

502%

1150 1060944772657545483

1001%

1280 11701030817691569501



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

66


13329500 HURRICANE CREEK NEAR JOSEPH, OR

LOCATION.--Lat 45°20'15", long 117°17'30", in NE 1/4 sec.3, T.3 S., R.44 E., Wallowa County, Hydrologic Unit 17060105, on left bank 350 ft upstream from intake of Moonshine Ditch, 3.5 mi southwest of Joseph, and at mile 7.5.

DRAINAGE AREA.--29.6 mi2 .

PERIOD OF RECORD. April to September 1915, April 1924 to 1978. Monthly discharge only for some periods, published in WSP 1317.

GAGE.--Water-stage recorder. Elevation of gage is 4,500 ft, by barometer. Apr. 27 to Sept. 3, 1915, nonrecording gage at site 250 ft downstream at different datum. Apr. 23, 1924, to June 13, 1933, water-stage recorder at site 150 ft downstream at different datum.


AVERAGE DISCHARGE. 54 years, 74.3 ft3 /s, 34.09 in/yr, 53,830 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,110 ft 3 /s June 9, 1948, gage height, 3.55 ft; maximum gage height, 6.94 ft June 4, 1977, backwater from debris; minimum discharge, 2.8 ft 3/s Mar. 2, 1955, result of ice jam upstream; minimum daily, 6.0 ft 3/s Jan. 6, Apr. 13, 1945.





1 37

14306090

120183

n

535353535353535353



250%

13 1414151618192124

520%

9.91011111314151619

1010%

8.4 8.99.39.81112131416

205%

7.2 7.78.18.59.711111215

502%

6.0 6.56.97.28.49.39.91113

100

5 5667899

1%

.3

.8

.1

.4

.6

.5

.0

.712



1 37

15306090



n

54 545454545454

250%

436 407369327293247204

520%

561 522474418365301246

1010%

635 590535471403328267

254%

722 669606530443355287

502%

782 724655571469372298

1001%

838775701608492386308



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

548 738 858 1010 1110 1220


67


13330000 LOSTINE RIVER NEAR LOSTINE, OR

LOCATION. Lat 45°26'20", long 117°25'35", In NW 1/4 sec.34, T.I S., R.43 E., Wallowa County, Hydrologic Unit 17060105, on left bank 3.5 ml south of Lostlne and at mile 10.0.

DRAINAGE AREA. 70.9 ml 2 .

PERIOD OF RECORD. August 1912 to March 1914, April to September 1915, July 1925 to 1987. Monthly discharge only for some periods, published in WSP 1317.

REVISED RECORDS. WSP 1397: 1913, 1942. WSP 1737: Drainage area.

GAGE. Water-stage recorder. Elevation of gage is 3,650 ft, by barometer. See WSP 1317 or 1737 for history of changes prior to Dec. 16, 1953. Dec. 16, 1953, to Aug. 23, 1977, at datum 1.04 ft higher.

REMARKS. Minam Lake Reservoir, capacity 440 acre-ft, has stored and diverted flow from Minam River since 1917 for irrigation in Lostine River basin. Diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 63 years (water years 1913, 1926-87), 195 ftVs, 141,300 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,550 ft 3/s June 16, 1974, gage height, 8.59 ft, present datum; minimum discharge, 7.5 ft 3/s Mar. 2, 1966, result of freezeup; minimum daily, 10 ft 3/s Nov. 28-30, 1936.





1 37

14306090

120183



n

62 6262626262626262

250%

23 2426283034374147

520%

18 1920212326272933

1010%

15 1618182022232427

205%

141416161819202124

502%

12 1314141517171820

1001%

11 1112131415161618



1 37

15306090



n

63 636363636363

250%

1380 130011601010901733592

520%

1710 1610146012901120885709

1010%

1900 1790165014501240966768

254%

2120 20001860165013801050829

502%

2270 21402010179014701110866

1001%

2410 22702150192015601150898



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


68


13330500 BEAR CREEK NEAR WALLOWA, OR

LOCATION. Lat 45°31 f 37», long 117°33'05", in NW 1/4 NE 1/4 sec.34, T.I N. f R.42 E., Wallowa County, Hydrologic Unit 17060105, on right bank 30 ft downstream from road bridge, 3.0 mi southwest of Wallowa, and at mile 4.4.


PERIOD OF RECORD. April to September 1915, April 1924 to September 1985. Monthly discharge only for some periods, published in WSP 1317.

GAGE. Water-stage recorder. Elevation of gage is 3,250 ft, by barometer. Apr. 13 to Sept. 16, 1915, non-recording gage at site 1.0 mi upstream at different datum. Apr. 22, 1924, to Nov. 2, 1931, water-stage recorder at site 1.5 mi upstream at different datum.

REMARKS. No regulation. Diversions for irrigation upstream from station. Water for irrigation in Lostine River basin diverted from Little Bear Creek, a tributary upstream from station, in sec.32, T.I S., R.43 E.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,730 ft 3/s June 15, 1974; maximum gage height, 3.82 ft Apr. 22, 1936 (from floodmark); minimum daily discharge, 3 ft 3/s Jan. 20, Feb. 1, 1937.





1 37

14306090

120183

n

61 6161616161616161


250%

9.4 9.49.7101112141725

520%

7.1 7.27.47.88.49.3101216

1010%

6.0 6.26.56.77.38.09.01012

5 5556788

205%

.2

.5

.7

.9

.5

.1

.0

.810

50

4. 4.5,5.5.6,7,7,8,

2%

,3 ,7,0,1,7,2,2,6,1

100

3. 4.4.4.5.5,6.6.7.

1%

,8 2.5.7.2,7,7.9.0



1 37

15306090



n

61 616161616161

250%

763 703628545488409338

520%

998 909812699611495402

1010%

1150 1040933799684541433

254%

1340 12101090924769588463

502%

1480 134012001020827618481

1001%

1620 146013201110882645496



1.25 80%

250%

5 20%

1010%

254%

50 2%

100 1%

1220 1410 1640 1810 1980


61 historical n - -0.050

69


13331500 MINAM RIVER AT MINAM, OR (Hydrologic bench-mark station)

LOCATION. Lat 45°37'12", long 117°43'32', in SW 1/4 SW 1/4 sec.29, T.2 N., R.41 E., Wallowa County, Hydrologic Unit 17060105, on left bank 2.3 mi downstream from Squaw Creek, 0.3 mi west of Minam, and at mile 0.3.


PERIOD OF RECORD. June 1912 to March 1914, September 1965 to 1987. Monthly discharge only for some periods, published in WSP 1317.

GAGE. Water-stage recorder. Datum of gage is 2,540.48 ft above National Geodetic Vertical Datum of 1929. June 1912 to March 1914, nonrecording gage at approximately same site at different datum.

REMARKS. No regulation. Minam Lake, capacity 440 acre-ft, has stored and diverted flow from Minam River since 1917 for irrigation in Lostine River basin.

AVERAGE DISCHARGE. 23 years, 470 ft3 /s, 26.59 in/yr, 340,500 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,260 ftVs June 16, 1974, gage height, 6.89 ft; maximum gage height, 7.3 ft May 28, 1913, datum then in use; minimum discharge, 10 ft 3/s Dec. 6, 1972, Jan. 10, 1973, result of freezeup.





1 37

14306090

120183


n

22 2222222222222222

250%

51 596567748392

102137

520%

3239465160677380

103

1010%

243035445561657089

205%

18 2327385156596479

502%

13 1619324751545769

1001%

_ --



1 37

15306090



n

23 232323232323

250%

2920 272024702160194015901300

520%

3820 357032502840244019901610

1010%

4390 412037503250269021801760

254%

5080 481043703730294023601890

502%

5590 532048304070309024701960

1001%

::



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2510 3290 4330 5000 5830


70


13332500 GRANDE RONDE RIVER AT RONDOWA, OR

LOCATION.--Lat 45°43'36", long 117°46'59", in SW 1/4 NW 1/4 sec.23, T.3 N. r R.40 E., Wallowa County, Hydrologic Unit 17060106, on right bank at Rondowa, 500 ft downstream from Wallowa River, 13 mi northeast of Elgin, and at mile 81.4.

DRAINAGE AREA.--2,555 mi 2 .


REVISED RECORDS. WSP 1093: 1928-29, 1932-33, 1936, 1938, 1939(M), 1943. WSP 1397: 1927. WSP 1447: 1927.


REMARKS. Flow slightly regulated by Wallowa Lake (station 13326000) and small reservoirs. Diversions forirrigation upstream from station, chiefly in vicinity of La Grande, Enterprise, and Wallowa; one transbasin diversion from Sheep Creek in Imnaha River basin for irrigation in Wallowa Valley.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 24,700 ft 3/s Jan. 30, 1965, gage height, 10.93 ft; minimum discharge, 179 ft 3/s Aug. 24, 1977.





1 37

14306090

120183


n

60 6060606060606060

250%

383397416435463501536575729

520%

310 322336352373404433463552

1010%

273 284295309327358387416479

205%

244 253262275290322352381427

502%

213 221227238252284316346376

1001%

194 200205215228261294325346



1 37

15306090



n

61 616161616161

250%

9230 868080207160633056405020

520%

12500 11600105009290818071706330

1010%

14500 134001200010500921079607010

254%

17000 1550013600118001030087807700

502%

18700 1690014600126001110092808110

1001%

20300 1830015600134001170097208470



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

7190 9830 13300 15600 18400 22500


71


13333000 GRANDE RONDE RIVER AT TROY, OR

LOCATION. Lat 45°56'47" f long 117°26'54", in NE 1/4 NW 1/4 sec.4 f T.5 N., R.43 E., Wallowa County, Hydrologic Unit 17060106, on left bank, 500 ft downstream from bridge at Troy, 600 ft downstream from Wenaha River, and at mile 45.2.


PERIOD OF RECORD. August 1944 to 1987. Monthly discharge only August 1944, published in WSP 1317.

REVISED RECORDS.--WSP 1397: 1946(M), 1948-50.

GAGE. Water-stage recorder. Datum of gage is 1,585.98 ft above National Geodetic Vertical Datum of 1929. Aug. 17, 1944, to Sept. 30, 1949, nonrecording gage at site 500 ft upstream at datum 10.85 ft lower. Oct. 1, 1949, to Sept. 5, 1963, water-stage recorder at site 500 ft upstream at datum 1.15 ft higher.

REMARKS. Flow slightly regulated by Wallowa Lake (station 13326000) and small reservoirs. Diversions forirrigation upstream from station, chiefly in vicinity of La Grande, Enterprise, and Wallowa; one transbasin diversion from Big Sheep Creek, and tributaries in Imnaha River basin for irrigation in Wallowa Valley.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 42,200 ft 3/s Dec. 23, 1964, gage height, 11.25 ft; minimum discharge, 344 ft 3 /s Aug. 19-21, 23, 1977.





1 37

14306090

120183


n

42 4242424242424242

250%

621 639661682713763799848

1110

520%

530 547566586611660697741910

1010%

480 494511531553606650699827

205%

438 449464484506562614671767

502%

391 399411431452514577644707

1001%

360 366377396417483553629672



1 37

15306090



n

43 434343434343

250%

13900 127001150010000869076706990

520%

19400 1710014800125001090096308700

1010%

22900 19700166001380012000106009480

254%

27300 228001850015000130001140010200

502%

30400 250001970015700136001190010600

1001%

33600 270002080016300140001230010900



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

10600 15200 21400 25500 30700 34600


72

COLUMBIA RIVER BASIN

WALLA WALLA RIVER BASIN

14010000 SOUTH FORK WALLA WALLA RIVER NEAR MILTON-FREEWATER, OR

LOCATION.~Lat 45°49'48", long 118°10'08", in NE 1/4 NE 1/4 sec.15, T.4 N., R.37 E., Umatilla County, Hydrologic Unit 17070102, on right bank 1.0 mi downstream from Elbow Creek, 13 mi southeast of Milton-Freewater, and at mile 59.1.


PERIOD OF RECORD. February to October 1903, August 1906 to November 1917, May 1931 to 1987. Monthlydischarge only for some periods, published in WSP 1318. Published as "12 mi above Milton" 1903, as "above Pacific Power & Light Co.'s intake near Milton" 1907-10, and as "near Milton" 1911-17, 1931-85.

REVISED RECORDS.--WSP 964: Drainage area. WSP 1398: 1912, 1940, drainage area at former site.

GAGE. Water-stage recorder. Elevation of gage is 2,050 ft from river-profile map. Prior to Mar. 23, 1934, water-stage recorder or nonrecording gage at several sites within 1.5 mi of present site at various datums.


AVERAGE DISCHARGE. 66 years (water years 1908-17, 1932-87), 178 ft 3 /s, 38.37 in/yr, 129,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,530 ft 3 /s Jan. 29, 1965, gage height, 5.60 ft; minimum discharge, 72 ft 3 /s Feb. 14, 1932.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage about 6 ft Mar. 31, 1931, present site and datum.





1 37

14306090

120183


n

64 6464646464646464

250%

99 99

100101102105106108119

520%

89 89909193959698

106

1010%

85 85868788909193

101

205%

81 8283838586889097

502%

78 7879808183848693

1001%

75 7677777980818391



1 37

15306090



n

65 656565656565

250%

632 545458395350313286

520%

890 723582483423373336

1010%

1090 847661535465407364

254%

1370 1010760593512445395

502%

1600 1140833633545470416

1001%

1850 1280905670575494435



1,25 80%

250%

520%

10 10%

254%

50 2%

100 1%

555 813 1240 1560 2020 2400 2820


73


14010500 SOUTH FORK WALLA WALLA RIVER BELOW PACIFIC POWER £ LIGHT CO.'S PLANT, NEAR MILTON, OR

LOCATION. Lat 45°53'00«, long 118°16'25«, in SE 1/4 NW 1/4 sec. 26, T.5 N., R.36 E. r Umatilla County, Hydrologic Unit 17070102, 800 ft downstream from Pacific Power £ Light Co. powerplant, 1.2 mi upstream from intake of Milton-Freewater city powerplant, 2 mi upstream from confluence with North Fork, and 5.8 mi southeast of Milton-Freewater.

DRAINAGE AREA. 80 mi2 , approximately. At site 1903-6, 1929-38, 81 mi2 , approximately.

PERIOD OF RECORD. October 1904 to May 1906, January 1930 to September 1945.

GAGE. Water-stage recorder. Datum of gage is 1,490.30 ft above National Geodetic Vertical Datum of 1929 (Pacific Power I Light Co. benchmark). Nov. 1, 1903, to May 29, 1906, staff gage and Dec. 18, 1929, to May 26, 1938, water-stage recorder at several sites within 1.2 ml of described site at various datums.

REMARKS. Small diversions for irrigation of about 300 acres upstream from station. Since 1905, some diurnal fluctuation caused by powerplant upstream from station.

COOPERATION. Records for 1929-40, furnished by the Oregon Water Resources Department.

AVERAGE DISCHARGE. 16 years (water years 1905, 1931-45), 169 ft 3 /s.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge not determined, probably occurred during floods of May 30, 31, 1906, or Mar. 31, 1931; maximum daily discharge, 3,000 ft /s (estimated) May 30, 1906, and Mar. 31, 1931; minimum, 1 ft /s (regulated) June 23,

1940; minimum daily, 57 ft 3 /s July 22, 1930.





1 31

14306090

120183



n

17 1717171717171717

250%

82 82838486878991

103

520%

72 7375777880818392

1010%

67 6971747576788087

205%

63 6669717274757783

50 1002% 1%

:: :: " MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

17 171717171717

250%

637 561486423373332300

520%

1040 817663551464398356

1010%

1450 1040788631515431385

254%

22201400952726572466415

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

535 759 1090 1330



74


14010800 NORTH FORK WALLA WALLA RIVER NEAR MILTON-FREEWATER, OR

LOCATION. Lat 45°53'06", long 118°11'06", in SE 1/4 NW 1/4 sec.28, T.5 N. f R.37 E., Umatilla County, Hydrologic Unit 17070102, on right bank 2.8 mi downstream from Little Meadow Canyon, 8.9 mi southeast of Milton-Freewater, and at mile 5.6.




REMARKS. No regulation; one diversion upstream from station.

AVERAGE DISCHARGE.--18 years, 52.9 ft 3 /s, 20.88 in/yr, 38,330 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,240 ft 3/s Feb. 23, 1986, gage height, 7.02 ft; minimum discharge, 3.3 ft 3 /s Aug. 26-28, 1986.





1 37

14306090

120183


n

17 1717171717171717

250%

6.7 6.76.86.97.37.88.39.214

5 5555667

520%

.2

.2

.3

.4

.6

.0

.6

.511

4 44445569

1010%

.4

.5

.6

.7

.8

.1

.7

.6

.5

3 34444568

205%

.8

.9

.0

.1

.2

.4

.0

.0

.5

50 1002% 1%

_ __ __



1 37

15306090



n

18 181818181818

250%

392 338276217160130117

520%

565 451357279208167152

1010%

680 517399309235185171

254%

826 592443338264204190

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1000


75


14011000 NORTH FORK WALLA WALLA RIVER NEAR MILTON, OR

LOCATION. Lat 45°54'08 > , long 118°16'55 > , in NE 1/4 NW 1/4 sec.23, T.5 N., R.36 E., Umatilla County, Hydrologic Unit 17070102, on right bank 5 mi southeast of Milton-Freewater, and at mile 1.2.


PERIOD OF RECORD. January 1930 to October 1969. Monthly discharge only for some periods, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 1,467 ft above National Geodetic Vertical Datum of 1929 (levels byU.S.G.S. National Mapping Division). Prior to Oct. 23, 1948, at several sites 0.7 mi downstream at various datums. Oct. 23, 1948 to Mar. 4, 1968, at site 200 ft downstream at same datum.

REMARKS. No regulation. Diversions upstream from station for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,050 ft 3/s Jan. 30, 1965, gage height, 8.05 ft; minimum, 0.90 ft 3/s

Aug. 17, 1955, Aug. 28, 29, 1961.




PERIOD (CON SECU TIVE DAYS)

1 3 7

14 30 60 90

120 183


n

39 39 39 39 39 39 39 39 39

250%

2.1 2.2 2.5 2.6 2.8 3.4 4 .1 5.3 11

1 1 1 2 2 2 3 4 7

5 20%

.4

.6

.8

.0

.2

.5

.1

.0

.1

10 10%

1.2 1.3 1.5 1.7 1.9 2.2 2.6 3.5 5.8

1 1 1 1 1 1 2 3 4

20 5%

.0

.1

.3

.5

.7

.9

.3

.1

.9

0 0 1 1 1 1 1 2 4

50 2%

.8

.9

.1

.3

.6

.7

.9

.7

.1

1001%

0 0, 01 1 1 1,23

.7

.8

.9

.2

.4

.6

.7

.4

.7



1 37

15306090



n

39 393939393939

250%

368 292223180150127110

520%

596 448318243194160139

1010%

811 600406290222180155

254%

1180 867554356258202173

502%

1530 1140695410284216185

1001%

1980 1480868469311230197



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

309 492 1470 1800

Systematic n = 38 historical n = 0 Weighted skew - 0.282

76

UMATILLA RIVER BASIN

14020000 UMATILLA RIVER ABOVE MEACHAM CREEK, NEAR GIBBON, OR

LOCATION. Lat 45°43'11", long 118°19'20", in SE 1/4 SW 1/4 sec.21, T.3 N., R.36 E., Umatilla County, Hydrologic Unit 17070103, Umatilla Indian Reservation, on right bank 0.8 mi downstream from Ryan Creek, 2.2 mi upstream from Meacham Creek, 2.5 mi northeast of Gibbon, and at mile 83.1.


PERIOD OF RECORD. April 1933 to 1987.

REVISED RECORDS. WSP 1935: 1946-48(M), 1950(M), 1953(M), 1956-59(M), drainage area.

GAGE. Water-stage recorder. Datum of gage is 1,854.81 ft above National Geodetic Vertical Datum of 1929. Prior to June 27, 1939, at site 1 mi downstream at datum 43.94 ft lower.


AVERAGE DISCHARGE.--53 years, 228 ft 3 /s, 23.64 in/yr, 165,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,930 ft 3 /s Jan. 25, 1975, gage height, 9.18 ft, from rating curve extended above 3,500 ft /s; maximum gage height, 9.50 ft Jan. 29, 1965; minimum discharge, 16 ft /a

Nov. 9, 1965, momentary regulation from unknown source.





1 37

14306090

120183



n

54 5454545454545454

250%

42 4243434546485172

520%

37 3838394142444657

1010%

35 3536373840414351

205%

323334353638404146

502%

293031333436373941

1001%

28 2829313234363838



1 37

15306090



n

54 545454545454

250%

1640 13501040856689572504

520%

2420 188014201090863702613

1010%

3020 225016701210956765666

254%

3880 2760200013401060826717

502%

4590 3160226014301120862747

1001%

5370 3580251015001180891771



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1400 2010 2950


77


14020300 MEACHAM CREEK AT GIBBON, OR

LOCATION.~Lat 45041'20", long 118°21'20", in SE 1/4 SE 1/4 sec.31, T.3. N., R.36 E., Omatilla County, Hydrologic Unit 17070103, on left bank 250 ft downstream from Onion Pacific railroad bridge, 0.9 mi southeast of Gibbon, and at mile 1.4.


PERIOD OF RECORD. August 1975 to 1987.



AVERAGE DISCHARGE. 12 years, 205 ftVs, 15.82 in/yr, 148,500 acre-ft.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,750 ftVs Feb. 20, 1982, gage height, 6.60 ft, from floodmark, from rating curve extended above 2,600 ft 3 /s; minimum discharge, 6.6 ft /s Aug. 29, 1984.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Jan. 25, 1975, reached a stage of 7.21 ft, from floodmark, discharge, about 8,200 ft /s.





1 37

14306090

120183


n

11 1111111111111111

250%

9.1 9.39.5101112141530

520%

8.0 8.28.58.99.611121422

10 2010% 5%

7.5 7.78.18.38.810121319

50 1002% 1%




1 37

15306090



n

12 121212121212

250%

1900 161012501030787634548

520%

2710 2280176013301010788679

1010%

3240 2730211014901120852730

25 50 1004% 2% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1610 4220

Systematic n - 12 historical n = 0 Generalized 17b skew = -0.114

78


14021000 UMATILLA RIVER AT PENDLETON, OR

LOCATION. Lat 45°40'20", long 118°47'30", in NW 1/4 NE 1/4 sec.10, T.2 N., R.32 E., Umatilla County, Hydrologic Unit 17070103, on wingwall 0.3 mi downstream from Main Street bridge at Pendleton, 1.5 mi downstream from Wildhorse Creek, 2.8 mi upstream from McKay Creek, and at mile 55.2.

DRAINAGE AREA. 637 mi 2 . *

PERIOD OF RECORD. February 1891 to July 1892, May 1903 to June 1905 (gage heights and discharge measurements only June to December 1904), October 1934 to 1987. Monthly discharge only February 1891 to July 1892, published in WSP 1318.

REVISED RECORDS. WSP 1398: 1904, 1937.

GAGE. Water-stage recorder. Datum of gage is 1,054.3 ft above National Geodetic Vertical Datum of 1929 (levels by Oregon Department of Transportation). Apr. 24 to Aug. 26, 1959, nonrecording gage and Aug. 27, 1959, to Feb. 4, 1965, water-stage recorder at 8th Street Bridge 0.7 mi upstream at datum of 1,067.01 ft above National Geodetic Vertical Datum of 1929. Feb. 5 to Nov. 18, 1965, nonrecording gage at Main Street Bridge 1,600 ft upstream at different datum. Nov. 19, 1965, to Sept. 30, 1969, water-stage recorder at 8th Street Bridge 0.7 mi upstream at datum of 1,067.60 ft above National Geodetic Vertical Datum of 1929 Nov. 19, 1965, to Mar. 28, 1967, and at datum of 1,064.02 ft above National Geodetic Vertical Datum of 1929 Mar. 29, 1967, to Sept. 30, 1969. See WSP 1738 for history of changes prior to Apr. 24, 1959.


AVERAGE DISCHARGE.--53 years (water years 1935-87), 505 ft 3 /s, 365,900 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,200 ftVs Feb. 23, 1986, gage height, 10.16 ft, datum then

in use; minimum discharge, 10 ft 3 /s July 13-16, 1940.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum discharge, 17,000 ft 3 /s Dec. 14, 1882 (date and discharge from data furnished by Corps of Engineers). Flood of May 30, 31, 1906. reached a stage of 11.0 ft, 1934-58 site and datum, but before channel was improved, discharge, 15,500 ft /s, estimated by Corps of Engineers.





1 37

14306090

120183


n

525252525252525252

250%

283031323439445298

520%

21 2324252731354168

1010%

18 1921222427313656

205%

15 1618192124283348

502%

13 1315171921242940

1001%

11 1213151718222736



1 37

15306090



n

53 535353535353

250%

4300 346026402110171014001220

520%

6600 50603730283022101780

- 1540

1010%

8360 624044903260248019701700

254%

10900 787055203750277021601860

502%

12900 919063204090295022701950

1001%

15200 1060071604410311023502030



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3430 5450 8800 11400 15000 18100 21300

Systematic n = 54 historical n =106 Weighted skew = 0.122

79


14022000 UMATILLA RIVER ABOVE MCKAY CREEK, NEAR PENDLETON, OR

LOCATION. Lat 45°40'20", long 118°50'00", in NE 1/4 sec.8, T.2 N., R.32 E., Umatilla County, Hydrologic Unit 17070103, 0.2 mi upstream from McKay Creek and 2 mi west of Pendleton.


PERIOD OF RECORD. January 1923 to September 1934.

GAGE. Water-stage recorder. Datum of gage is 997.68 ft above National Geodetic Vertical Datum of 1929. May 8 to Oct. 12, 1921, staff gage, and Oct. 13, 1921, to Mar. 3, 1923, water-stage recorder, 200 ft downstream at different datum. Mar. 6, 1923, to Sept. 30, 930, at about described datum, and Oct. 1, 1930, to Mar. 31, 1931, at datum about 2.0 ft higher.

REMARKS. Many diversions for irrigation upstream from station. Slight regulation caused by mills upstream.

AVERAGE DISCHARGE. 11 years (water years 1924-34), 451 ft 3 /s.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 13,500 ft 3 /s (estimated), Apr. 1, 1931; minimum, 7 ftVs Aug. 14, 1924,

gage height, 1.87 ft.





1 37

14306090

120183


n

10 1010101010101010

250%

18 1920222428333866

520%

15 1617182023273350

1010%

13 1415161720253246

20 50 1005% 2% 1%

:: :: :: .. MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

11111111111111

250%

3640 311025901970147012001080

520%

5110 423033602560193015601370

1010%

6440 521038902960229018501620

25 50 1004% 2% 1%

_ __ . _ --



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3500 5350 8130 10100


80


14022200 NORTH FORK MCKAY CREEK NEAR PILOT ROCK, OR

LOCATION.--Lat 45°30'24", long 118°36'57", In NE 1/4 SE 1/4 sec.l, T.I S., R.33 E., Omatilla County, Hydrologic Unit 17070103, Omatilla Indian Reservation, on left bank 10 mi northeast of Pilot Rock and at mile 0.5.


PERIOD OF RECORD.--May 1973 to 1987.

GAGE.--Water-stage recorder. Elevation of gage is 1,870 ft, from topographic map.


AVERAGE DISCHARGE.--14 years, 44.8 ft 3 /s, 32,460 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,980 ft 3/s Jan. 25, 1975, gage height, B.4B ft, fromfloodmark, from rating curve extended above 150 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 0.22 ft /s June 26, 1985 (result of temporary construction upstream).





1 37

14306090

120183



n

13 1313131313131313

250%

0.7 0.70.70.80.91.01.21.63.9

0 00000112

520%

.6

.6

.6

.7

.7

.9

.1

.3

.5

10 2010% 5%

0.5 0.50.60.60.70.81.01.22.1

50 1002% 1%



1 37

15306090



n

14 141414141414

250%

469 381287225172146124

520%

733 530383290225180155

1010%

898 608429316249193166

254%

1090 687470336270203173

50 1002% 1%

:: :: MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 80%

250%

5 20%

1010%

25 4%

50 2%

1001%

719 1130 1430

Systematic n = 14 historical n Generalized 17b skew - -0.077

81


14022500 MCKAY CREEK NEAR PILOT ROCK, OR

LOCATION. Lat 45°32'57", long 118°46'24", in NW 1/4 SE 1/4 sec.23, T.I N., R.32 E., Umatilla County, Hydrologic Unit 17070103, on left bank 500 ft upstream from county road bridge, 5.5 mi northeast of Pilot Rock, and at mile 8.2.


PERIOD OF RECORD. May to August 1921, October 1926 to June 1928, December 1928 to July 1929, October 1929 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS. WSP 1398: 1928-29, 1933, 1940.

GAGE. Water-stage recorder. Datum of gage is 1,343.60 ft above National Geodetic Vertical Datum of 1929. See WSP 1318 or 1738 for history of changes prior to Apr. 9, 1941. Apr. 9, 1941, to July 24, 1963, at site 1,000 ft downstream at datum 7.92 ft lower.

REMARKS.--No regulation. Many small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 59 years (water years 1927, 1930-87), 102 ft 3 /s, 73,900 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,400 ft 3 /s Jan. 30, 1965, gage height, 8.40 ft; no flow at times.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

58 5858585858585858


250%

0 00000017

.1

.1

.1

.2

.2

.5

.9

.6

.6

520%

0.0 0.00.00.00.00.00.10.32.8

10 2010%

0, 0,0,0,000,0,1,

.0

.0

.0

.0

.0

.0

.0

.1

.5

0, 00000000

5%

.0

.0

.0

.0

.0

.0

.0

.0

.9

50

0, 0.0.0.0,0,0,0,0,

2%

.0

.0

.0

.0

.0

.0

.0

.0

.5

1001%

0.0 0.00.00.00.00.00.00.00.3



1 37

15306090



n

59 595959595959

250%

1040 839645492392321273

520%

1720 1340974714548438369

1010%

2260 17401210861640499418

254%

3020 232015301040744561468

502%

3670 281017901180814599498

1001%

4360 336020501320878630523



1.2525102550100 80% 50% 20% 10% 4% 2% 1%

Tffl 1370 2430 3300 4590 5700 6940

Systematic n = 61historical n =0 Weighted skew = 0.101

82

OMATILLA RIVER BASIN

14023500 MCKAY CREEK NEAR PENDLETON, OR

LOCATION.~Lat 45°36'34", long 118°47'55", in SE 1/4 NW 1/4 sec.34, T.2 N., R.32 E., Umatilla County, Hydrologic Unit 17070103, on right bank 35 ft upstream from diversion dam, 0.2 mi downstream from McKay Dam, 4.5 mi south of Pendleton, and at mile 4.7.


PERIOD OF RECORD. November 1918 to May 1919, October 1919 to September 1923, October 1924 to September 1927, November 1927 to September 1943, April 1944 to October 1947 (irrigation seasons only), March 1948 to current year. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS. WSP 1154: Drainage area. WSP 1398: 1923.

GAGE. Water-stage recorder. Concrete control since Mar. 23, 1928. Datura of gage is 1,163.71 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench mark). See WSP 1318 or 1738 for history of changes prior to Nov. 16, 1948.

REMARKS Flow completely regulated since 1927 by McKay Reservoir (station 14023000). Many diversions for irrigation upstream from station. From 1932 to 1970, records excluded flow in Elder ditch, which diverts water between the gage and the control. Since 1971, records include flow in Elder ditch. During the irrigation season, from 1953 to 1982, Elder ditch diverted a maximum of 1.5 ft /s; since 1982, diversion has been less than 1.0 ft Vs.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge observed, 3,250 ftVs Feb. 10, 1921, gage height, 4.4 ft, site and datum then in use, from rating curve extended above 1,200 ft /s; no flow at times each year.




[Low-flow statistics not computed due to excessive zero events]


1 37

14306090

120183


FTVS, FOR INDICATED RECURRENCEIN YEARS, AND

EXCEEDANCE PROBABILITY,

2 550% 20%

:: ::

1010%

_ _

ANNUAL NON-IN PERCENT

205%

::

502%

--

1001%

--



1 37

15306090

DISCHARGE, IN FTVS, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

54 545454545454

250%

432421391356330304266

520%

656 624563485423360314

1010%

863 805718595491391339

254%

1210 1100972768585425364

502%

1550 13801210923661447379

1001%

1960 171015001110743467392



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


83


14025000 BIRCH CREEK AT RIETH, OR

LOCATION. -Lat 45039'10", long 118°52'45", in SE 1/4 sec.13, T.2 N., R.31 E. r Umatilla County, Hydrologic Unit 17070103, on right bank 600 ft downstream from road bridge, 0.3 mi southwest of Rieth, and at mile 0.2.


PERIOD OF RECORD. May to August 1921, March to July 1922, April to September 1923, April to September 1927, Januaryto June 1928, November 1928 to August 1929, October 1929 to September 1976. Monthly discharge only for some periods, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 951.04 ft above National Geodetic Vertical Datum of 1929. See WSP 1738 for history of changes prior to July 24, 1957.


AVERAGE DISCHARGE. 47 years (watGr years 1930-76), 48.9 ftVs, 35,430 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,200 ft 3 /s Jan. 30, 1965, gage height, 6.40 ft; no flow at times.





1 37

14306090

120183

n

42 4242424242424242


250%

0 00000000

.0

.0

.0

.0

.0

.1

.1

.3

.3

520%

0.0 0.00.00.00.00.00.00.00.0

1010%

0 00000000

.0

.0

.0

.0

.0

.0

.0

.0

.0

205%

0.0 0.00.00.00.00.00.00.00.0

502%

0.0 0.00.00.00.00.00.00.00.0

100

0, 0,0,0.0,0,0.0.0.

1%

.0

.0

.0

.0

.0

.0

.0

.0

.0



1 37

15306090



n

45 454545454545

250%

412 351294238192152128

520%

692559457357281222188

1010%

906710570436334262223

254%

1210 914719535397307261

502%

1450 1070832608439337287

1001%

1710 1240948680478364309



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

298 546 992 1350 1870 2300 2770


84


14026000 UMATILLA RIVER AT YOAKUM, OR

LOCATION. Lat 45°40'38", long 119°02'09«, in SW 1/4 SW 1/4 sec.2, T.2 N., R.30 E., Umatilla County, Hydrologic Unit 17070103, at left bank on downstream side of highway bridge, 0.5 mi northeast of Yoakuin, 2.5 mi downstream from abandoned Furnish Reservoir, 12.0 mi downstream from Birch Creek, and at mile 37.7.


PERIOD OF RECORD. May 1903 to 1987. Records published as "above Furnish Reservoir, near Yoakum" October 1916 to September 1934 are equivalent.

REVISED RECORDS. WSP 794: 1906(M). WSP 1398: 1904-6, 1908-9, 1922-23, 1926, 1936.

GAGE. Water-stage recorder. Datum of gage is 768.21 ft above National Geodetic Vertical Datum of 1929. See WSP 1318 or 1738 for history of changes prior to Oct. 21, 1948.

REMARKS. Slight regulation by Furnish Reservoir, capacity 3,900 acre-ft, beginning in 1910 and continuing until 1934 when reservoir filled with silt. Flow regulated to some extent since 1927 by McKay Reservoir (station 14023000). Many diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 20,000 ft 3 /s May 30, 1906, gage height, about 15.0 ft, site and datum then in use, from floodmarks, from rating curve extended about 6,600 ft 3 /s; minimum discharge, 12 ft /s

Aug. 10-12, 1908, Aug. 4, 1910.





1 37

14306090

120183


n

22 2222222222222222

250%

25 26272831374454

102

520%

18 1920212329354172

1010%

15 1617182025313761

205%

13 1414161823293453

502%

11 1212131621273145

1001%




1 37

15306090

DISCHARGE, IN FTJ /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

23 232323232323

250%

5790 495041603340269021201840

520%

8990 726056704480371029702500

1010%

11400 883065705100435035302920

254%

14700 1090076005770511042363440

502%

17400 1240083006190564047403820

1001%

:: --MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 80%

250%

5 20%

10 10%

254%

50 2%

1001%

10100 12800 19500


85


14026000 UMATILLA RIVER AT YOAKUM, OR Continued


[n - number of values used to compute statistics)

MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW BASED ON PERIOD OF RECORD-1929-1987


1 37

14306090

120183


n

59 5959595959595959

250%

49 5053576587

122162228

520%

34 363840466084

113173

1010%

28 29303238496891

147

205%

23 24252732415775

127

502%

19 19202126344659

108

1001%

16 1617182230395096



1 37

15306090



n

60 606060606060

250%

4800 394031202570206017001480

520%

7180 571044403510280022801950

1010%

8970 702053704080325026102210

254%

11500 885066104750377029602480

502%

13500 1030075805220413031902660

1001%

15700 1190085905670446034002810


DISCHARGE, IN FTVS, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

520%

10 10%

25 4%

50 2%

100 1%


historical n

86


14032000 BUTTER CREEK NEAR PINE CITY, OR

LOCATION.~Lat 45°32'48", long 119°18'14", in SE 1/4 SW 1/4 sec.22, T.I N., R.28 E., Morrow County, Hydrologic Unit 17070103, on right bank 0.3 mi downstream from Mattlock Canyon, 6.0 mi southeast of Pine City, 15 mi southwest of Echo, and at mile 28.4.


PERIOD OF RECORD. April to June 1928, November 1928 to June 1929, October 1929 to September 1930, January 1931 to September 1932, February to June 1933, October 1933 to September 1941, January to June 1942, October 1942 to September 1987. Prior to October 1945, monthly discharge only, published in WSP 1318.

REVISED RECORDS.--WSP 1218: 1950IM).

GAGE. Water-stage recorder. Elevation of gage is 1,400 ft, by barometer. Prior to Oct. 1, 1944, at datum 1.1 ft higher and Oct. 1, 1944, to Sept. 6, 1949, at datum 1.0 ft higher.

REMARKS. No regulation. Several small diversions for irrigation upstream from station. Water is diverted into headwaters of Butter Creek from Fivemile Creek, a tributary of Camas Creek in John Day River basin, for irrigation downstream from station.

AVERAGE DISCHARGE. 55 years (water years 1930, 1932, 1934-41, 1943-87), 28.6 ft 3 /s, 20,720 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,800 ft 3 /s Feb. 21, 1949, gage height, 12.4 ft, present datum, from floodmark, from rating curve extended above 440 ft 3 /s on basis of computation of peak flow over diversion dam; no flow at times.


(n « number of values used to compute statistics]


(Short-duration statistics uncertain due to excessive zero events and diversion]

PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

52 5252525252525252



250%

0.2 0.20.20.20.30.40.61.23.8

520%

0.0 0.00.00.00.00.00.00.10.7

1010%

0.0 0.00.00.00.00.00.00.00.0

205%

0.0 0.00.00.00.00.00.00.00.0

50

0 0000,0000

2%

.0

.0

.0

.0

.0

.0

.0

.0

.0

100

0, 0,0,0.0.0,0,0.0.

1%

.0

.0

.0

.0

.0

.0

.0

.0

.0



1 37

15306090



n

55 555555555555

250%

2231831491221008371

520%

422 336262203158129111

1010%

620 479354262196157135

254%

974 718491340241188163

502%

1330 947609401273209182

1001%

1800 1230741464303228199



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

186 1530 2080 2770


57 historical 0.515

87


14033500 UMATILLA RIVER NEAR UMATILLA, OR

LOCATION. Lat 45°54'11", long 119°19' 33", in SW 1/4 NW 1/4 sec.21, T.5 N., R.28 E., Umatilla County, Hydrologic Unit 17070103, on left bank 1.6 mi downstream from West Division main canal of Umatilla project, 1.2 mi southeast of Umatilla, and a-t mile 2.1.



REVISED RECORDS. WSP 794: Drainage area. WSP 1398: 1909, 1911, 1914, 1928, 1935.

GAGE. Water-stage recorder. Datum of gage is 330.47 ft above National Geodetic Vertical Datum of 1929. Oct. 21, 1903, to Jan. 25, 1931, nonrecording gage.

REMARKS. Some regulation since 1927 by McKay Reservoir (station 14023000). Many diversions upstream from station for irrigation of lands upstream and downstream from station; Brownell Canal diverts downstream from station. Diversions since 1908 to Cold Springs Reservoir, an off-channel reservoir, capacity, 52,380 acre-ft.

AVERAGE DISCHARGE.--60 years (water years 1928-87), 463 ft 3 /s, 335,400 acre-ft/yr. Water years prior to 1928 not included in computation of average discharge owing to increased regulation and diversion since 1927.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 19,800 ftVs Jan. 30, 1965, gage height, 10.75 ft; no flow at times.





1 37

14306090

120183

n

26 2626262626262626


250%

1.5 1.72.02.73.86.39.71547

520%

0.7 0.81.01.31.72.84.26.517

1010%

0.5 0.60.70.81.11.72.53.98.7

20 505%

0.3 0, 0.4 0,0.5 00.5 00.8 01.1 01.5 02.4 1,4.6 2

2%

.2

.3

.3

.3

.5

.6

.8

.4

.1

100

0 00000001

1%

.2

.2

.2

.2

.4

.4

.6

.9

.2



1 37

15306090

n

60 606060606060



2 5 10 25 5050% 20% 10% 4% 2%

4300 6790 8730 11500 13900 3610 5530 6990 9050 107002860 4290 5300 6640 76702250 3300 3970 4750 53101780 2560 3010 3480 37901390 2000 2340 2700 29301180 1690 1970 2250 2430

1001%

16500 1260087305830406031202580

MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW

1

DISCHARGEYEARS ,

.2580%


, IN FT3 /S, FOR INDICATED RECURRENCE INTERVAL , INAND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

2 5 10 25 50 100 50% 20% 10% 4% 2% 1%

3240 5060 8160 10600 14100 17100 20400


88

WILLOW CREEK BASIN

14034500 WILLOW CREEK AT HEPPNER, OR

LOCATION. Lat 45°21'02", long 119°32'56", in SE 1/4 NW 1/4 sec.35, T.2 S., R.26 E., Morrow County, Hydrologic Unit 17070104, on right bank at Heppner, 100 ft upstream from Court Street bridge, 800 ft southeast of Morrow County courthouse, 0.2 mi downstream from Willow Creek Dam and at mile 52.2.

DRAINAGE AREA. 96.8 mi2 .

PERIOD OF RECORD. May 1951 to 1987.

REVISED RECORDS.--WDR OR-83-1: Drainage area.

GAGE. Water-stage recorder. Concrete control since September 1985. Datum of gage is 1,952.73 ft above National Geodetic Vertical Datum of 1929.

REMARKS. Flow regulated by Willow Creek Lake, 0.2 mi upstream, since Feb. 16, 1983. Many diversions for irrigation upstream from station. Part of flow of Ditch Creek (John Day River basin) is diverted to Willow Creek upstream from station.

AVERAGE DISCHARGE.--31 years (water years 1951-82), 19.1 ft 3 /s, 13,840 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 812 ft 3/s May 10, 1957, gage height, 6.15 ft, from rating curve extended above 230 ft 3/s; maximum gage height, 6.46 ft May 25, 1971, backwater from Shobe Canyon; no flow at times.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum discharge, about 36,000 ftVs June 14, 1903, result of slope-area measurement (see WSP 96). Discharge for flood of Feb. 22, 1949, was 1,700 ft 3 /s, result of slope-area measurement.





1 37

14306090

120183

DISCHARGE, IN FTS /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

n

30 3030303030303030

0 00000002

250%

.0

.0

.1

.1

. 1

.2

.3

. 7

.3

520%

0.0 0.00.00.00.00.00.10.31.2

1010%

0.0 0.00.00.00.00.00.10.20.8

0 00000000

205%

.0

.0

.0

.0

.0. 0.0.1. 6

0 00000000

502%

.0

.0

.0

.0

.0

.0

.0

.0

.4

1001%

0.0 0.00.00.00.00.00.00.00.3



1 37

15306090

DISCHARGE, IN FT S/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

31 313131313131

250%

151 13210682665447

520%

268 2291791341038472

1010%

344 2902221651239984

254%

434 36127119914411496

502%

495 407303220156122102

1001%

551 449330239166128107



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

180 497 915 3060

Systematic n = 32 historical n = 80 Weighted skew = = 0.705

89

WILLOW CREEK BASIN

14034800 RHEA CREEK NEAR HEPPNER, OR

LOCATION. Lat 45°15'46", long 119°36'51", in NW 1/4 SW 1/4 sec.32, T.3 S., R.26 E., Morrow County, Hydrologic Unit 17070104, on left bank 150 ft downstream from road bridge, 0.8 mi downstream from Sanford Canyon, 8 mi southwest of Heppner, and at mile 25.6. Prior to Nov. 4, at site 1,000 ft downstream.



REVISED RECORD.--WDR OR-84-1: 1983.

GAGE. Water-stage recorder. Elevation of gage is 2,320 ft, from topographic map. Prior to May 28, 1976, at site 0.6 mi downstream at different datum and May 28, 1976 to Nov. 3, 1982, at site 1,000 ft downstream at datum 10.5 ft lower.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,280 ft 3/s June 10, 1969, gage height, 7.05 ft, site and datum then in use, from rating curve extended above 130 ft /s on basis of slope-area measurement at gage height 6.72 ft; maximum gage height, 7.41 ft Dec. 22, 1964, site and datum then in use; no flow at times.


[n « number of values used to compute statistics]



1 37

14306090

120183

n

26 2626262626262626


250%

0.0 0.00.10.20.50.91.21.72.9

520%

0 00000001

.0

.0

.0

.0

.1

.2

.4

.7

.6

1010%

0.0 0.00.00.00.00.10.20.51.2

205%

0.0 0.00.00.00.00.00.10.30.9

502%

0.0 0.00.00.00.00.00.00.20.7

1001%

0.0 0.00.00.00.00.00.00.20.6



1 37

15306090



n

27 272727272727

250%

233194147110836455

520%

435 34826519314411094

1010%

566 446341246180138117

254%

720 557432306221170142

502%

823 629493346246191157

1001%

915 694549382268210170



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

123 291 639 937 1380 1750 2150

Systematic n - 26 historical n = 0 Weighted skew - -0.321

90

WILLOW CREEK BASIN

14036000 WILLOW CREEK NEAR ARLINGTON, OR

LOCATION. Lat 45°45'12", long 120°00'35", in NE 1/4 SW 1/4 sec.12, T.3 N., R.22 E., Gilliam County, Hydrologic Unit 17070104, on right bank at bridge on abandoned highway, 3.8 mi downstream from Eightmile Canyon, 10 mi east of Arlington, and at mile 3.7.

DRAINAGE AREA.--850 mi2 , approximately.

PERIOD OF RECORD. March to July 1906, August 1960 to September 1979. Records for March to August 1905 at site just upstream from Eightmile Canyon not equivalent owing to diversions and inflow.

GAGE.--Water-stage recorder and concrete control. Datum of gage is 291.26 ft above National Geodetic Vertical Datum of 1929. Mar. 1 to July 21, 1906, nonrecording gage at site 2.6 mi upstream at different datum. Aug. 24, 1960 to July 1, 1964, water-stage recorder at site 430 ft downstream at same datum.

REMARKS.--No regulation. Many diversions for irrigation upstream from station.

AVERAGE DISCHARGE.--19 years, 31.3 ft 3 /s, 22,680 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,900 ft 3 /s probably occurred Jan. 14, 1974, gage height, 11.18 ft, from floodmark, from rating curve extended above 1,900 ft /s on basis of slope-area measurement at gage height 11.05 ft; maximum gage height, 13.50 ft Feb. 7, 1979, from floodmarks; no flow at times.





1 37

14306090

120183


n

18 1818181818181818

0 00000000

250%

.0

.0

.0

.0

.0

.1

.2

.3

.8

520%

0.0 0.00.00.00.00.00.00.10.3

1010%

0.0 0.00.00.00.00.00.00.00.2

205%

0.0 0.00.00.00.00.00.00.00.0

50 1002% 1%

II II __ --



1 37

15306090



n

19 191919191919

250%

357 2621941481077861

520%

1610 995663460303218172

1010%

3160 17501090702444319256

254%

5970 29101680990600432353

50 1002% 1%

II II -- --



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

948 10000 23800

Systematic n = 19 historical n = 0 Generalized 17b skew = 0.000

91

JOHN DAY RIVER BASIN

14037500 STRAWBERRY CREEK ABOVE SLIDE CREEK, NEAR PRAIRIE CITY, OR

LOCATION.--Lat 44°20'30", long 118°39'20", in SE 1/4 NW 1/4 sec.20, T.14 S., R.34 E., Grant County, Hydrologic Unit 17070201, on left bank 100 ft upstream from Slide Creek, 8.5 mi south of Prairie City, and at mile 9.0.


PERIOD OF RECORD. October 1930 to 1987. Prior to October 1944, published as "above South Fork, near Prairie City."

REVISED RECORDS.--WSP 1488: 1932-33. WSP 1738: Drainage area.

GAGE.--Water-stage recorder and log control. Datum of gage is 4,909.57 ft above National Geodetic Vertical Datum of 1929.

REMARKS. Flow affected by natural storage in Strawberry Lake. No diversion upstream from station.

AVERAGE DISCHARGE.--57 years, 13.0 ft 3 /s, 25.22 in/yr, 9,420 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 354 ft 3 /s May 31, 1983, gage height, 2.45 ft, from rating curve extended above 190 ft 3 /s; maximum gage height, 3.23 ft May 24, 1956 (backwater from logs); minimum discharge, 1.0 ft 3 /s Mar. 20, 1955.





1 37

14306090

120183


n

56 5656565656565656

2.50%

2.0 2.02.12.22.32.62.73.03.3

1 11112222

520%

.6

.6

.7

.7

.9

.0

.2

.3

.5

1 11111122

1010%

.5

.5

.5

.6

.7

.8

.9

.0

.2

205%

1.3 1.31.41.41.51.61.81.92.0

502%

1.2 1.21.21.31.41.51.61.71.8

100

1, 11,1,11,111

1%

.1

.1

.1

.2

.3

.4

.5

.6

.7



1 37

15306090



n

57 575757575757

250%

85 827769604838

520%

120 11310492796249

1010%

142 133121107907055

254%

171 1581421241027760

502%

192 1751561361108264

1001%

213 1921711471178767



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

135 169 215

Systematic n = 57 historical n 0 Weighted skew = 0.206

92


14038500 JOHN DAY RIVER AT PRAIRIE CITY, OR

LOCATION. Lat 44°27'15", long 118°43'00", in SE 1/4 NE 1/4 sec.10, T.13 S., R.33 E., Grant County, Hydrologic Unit 17070201, on right bank 600 ft upstream from outlet of Prairie power canal, 0.3 mi downstream from Dixie Creek, 0.8 mi southwest of Prairie City, and at mile 262.0.


PERIOD OF RECORD. October 1916 to September 1917 (gage heights only), March 1925 to September 1968. Monthly discharge only March 1925 published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 3,494.59 ft above National Geodetic Vertical Datum of 1929. Prior to Mar. 30, 1926, staff gage at site 600 ft downstream, just below outlet of Prairie power canal, at different datum. Mar. 30, 1926, to Aug. 23, 1943, staff gage at various sites and datums just above outlet of Prairie power canal. Aug. 24, 1943, to Sept. 22, 1965, water-stage recorder at datum 2.07 ft higher. Sept. 23, 1965, to July 27, 1966, water-stage recorder at present site and datum.

REMARKS. No regulation. Several diversions upstream including Prairie power canal (not used for power since February 1952) which diverts upstream from station in SE 1/4 sec.7, T.13 S., R.34 E., for irrigation upstream and downstream from station.

AVERAGE DISCHARGE. 27 years (water years 1926-52), 113 ft 3 /s, including flow of Prairie power canal, 81,810 acre-ft/yr; 15 years (water years 1953-68), 114 ft 3 /s, river only, 82,530 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,400 ft 3 /s Dec. 22, 1964, gage height, 8.07 ft, present datum, from rating curve extended above 1,400 ft 3 /s; minimum, 2 ft 3 /s Dec. 8, 21, 22, 1932, Aug. 10, 1934.





1 37

14306090

120183


n

23 2323232323232323

250%

8.39.09. 6111317192332

520%

5.1 5.55.86.47.710121419

1010%

4. 1 4. 44.65.16.18.29.51015

3 3345678

205%

.4

.7

.9

.3

.1

. 9

.9

.512

50

2.3.3.3.4.5.6.6.8.

2%

. 9

. 1

.3

.5

.2

.7, 6, 7,8

1001%




1 37

15306090



n

24242424242424

250%

452365318281246212184

520%

718 586500425359303261

1010%

913770645531435362312

254%

1250 1050860676529434374

50 1002% 1%

1520 12901040792599487420



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1250


26 historical n 0. 151

93


14038500 JOHN DAY RIVER AT PRAIRIE CITY, OR Continued





1 37

14306090

120183


n

15 1515151515151515

250%

15 1617202632394859

520%

101113152027324051

1010%

8.7 9.411131725293647

205%

7.4 8.110121623273344

50 1002% 1%

-

______ __



1 37

15306090



n

16 161616161616

250%

434 393366310264226205

520%

683 596520425361310277

1010%

908 774634506424364324

254%

1280 1060794613503432381

50 1002% 1%

_ __ __-- -



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

Systematic n = historical n Generalized 17b skew = --

94


14038530 JOHN DAY RIVER NEAR JOHN DAY, OR

LOCATION. Lat 44°25'07", long 118°54'19", in SW 1/4 SE 1/4 sec.19, T.13 S., R.32 E., Grant County, Hydrologic Unit 17070201, on left bank 1,200 ft downstream from Dog Creek, 2.5 mi east of John Day, and at mile 250.8.




REMARKS. No regulation upstream. Many diversions upstream from station for irrigation.

AVERAGE DISCHARGE. 19 years, 220 ft3 /s, 159,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,830 ft 3/s June 9, 1969, gage height, 10.80 ft, from floodmark; minimum discharge, 3.5 ft 3/s Aug. 26-28, 1969.





1 37

14306090

120183


n

18 1818181818181818

250%

15 1616192842566790

520%

7.6 8.39.0101628385072

1010%

5.4 6.06.67.61123314365

205%

4.1 4.65.15.88.819263961

50 1002% 1%

_ _



1 37

15306090



n

19 191919191919

250%

1240 1030828683589494439

520%

1840 14901180927777647585

1010%

2130 170013301020844702644

254%

2380 187014501090891741690

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

972 1640 2750 3610 4820


95


14040500 JOHN DAY RIVER AT PICTURE GORGE, NEAR DAYVILLE, OR

LOCATION. Lat 44°31'15", long 119°37'30", in SW 1/4 sec.17, T.12 S. f R.26 E., Grant County, Hydrologic Unit 17070201, on right bank 0.7 mi upstream from Rock Creek, 5.5 mi northwest of Dayville, and at mile 205.1.


PERIOD OF RECORD. April 1926 to 1987. Monthly discharge only April 1926, published in WSP 1318.

REVISED RECORDS. WSP 1218: 1950. WSP 1348: Drainage area. WSP 1448: 1926, 1928, 1932(M), 1936.

GAGE. Water-stage recorder. Datum of gage is 2,229.84 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 11, 1926, nonrecording gage and Oct. 11, 1926, to Sept. 30, 1930, water-stage recorder at same site at datum 2.50 ft higher. Oct. 1, 1930, to Aug. 28, 1970, at datum 2.00 ft higher.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,170 ft 3 /s Dec. 22, 1964, gage height, 14.97 ft; minimum discharge, 1.0 ft 3 /s for several days in August and September 1930, Aug. 8, 9, 1936, Sept. 9, 1966.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183


n

60 6060606060606060

250%

15 15171822314777

136

520%

5.0 5.35.96.57.811183583

1010%

2.7 2.93.33.64.35.99.62162

205%

1.6 1.71.92.22.63.45.61348

0 0111127

502%

.9

.9

.1

.2

.4

.8

.9

.535

100

0 0000114

1%

.6

.6

.7

.8

.9

.1

.8

.928



1 37

15306090



n

61 616161616161

250%

2500 231020601790152012701110

520%

4030 367032202730227019001670

1010%

5080 454039203250269022501990

254%

6430 557047103800313026402340

502%

7440 629052404150341028802570

1001%

8440 696057104440364030902760



1.25 2 80% 50%

5 20%

10 10%

25 4%

50 2%

100 1%

5830 7600 9010 10500



96


14041500 NORTH FORK JOHN DAY RIVER NEAR DALE, OR

LOCATION. Lat 44°59'55", long 118°56'25", in SE 1/4 SE 1/4 sec.35, T.6 S., R.31 E., Grant County, Hydrologic Unit 17070202, on right bank 0.2 mi downstream from Desolation Creek and 0.8 mi northeast of Dale.




REMARKS. Flow regulated by Olive Lake (capacity, about 5,500 acre-ft) and Upper Reservoir on Lake Creek (capacity, about 700 acre-ft). Some diurnal fluctuation at low flow caused by logging operations upstream from station. Several small diversions for irrigation and mining upstream from station. Since 1865 water has been diverted upstream from station at times to North Fork Burnt River.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,170 ftVs May 26, 1948, gage height, 10.48 ft; minimum, 6 ft 3 /s

Nov. 3, 1936, gage height, 1.40 ft, result of freezeup; minimum daily, 10 ft 3 /s Nov. 11, Nov. 29 to Dec. 1, 1936,Jan. 7, 8, 1937.





1 37

14306090

120183


n

28 2828282828282828

250%

33 3740424752586483

520%

21 2427323539444859

1010%

16 1822273134374250

205%

13 1418242730333743

502%

9.61115202427293237

1001%

7.9 8.613182225262933



1 37

15306090



n

29 292929292929

250%

2850 269024802190190015201200

520%

4090 383035203110267020801630

1010%

4840 451041303640311024001880

254%

5720 528048004230360027402160

502%

6330 580052404620393029702340

1001%

6890 628056304970423031702500



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2040 4500 6530 7330 8100

Systematic n - 29 historical n = 0 Weighted skew = -0.309

97


14042000 CAMAS CREEK NEAR LEHMAN, OR

LOCATION. Lat 45°10'16", long 118°43'53«, in SW 1/4 sec.33, T.4 S., R.33 E., Umatilla County, Hydrologic Unit 17070202, on left bank 2.1 mi downstream from Bowman Creek, 3.5 mi northwest of Lehman, and at mile 25.5.

DRAINAGE AREA. 60. 7 mi2 .


GAGE. Water-stage recorder. Datum of gage is 3,969.53 ft above National Geodetic Vertical Datum of 1929 (levels by State Highway Department).

REMARKS. No regulation. A few small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,880 ft 3/s Dec. 21, 1955, gage height, 4.56 ft, from rating curve extended above 900 ft 3 /s; minimum, 0.23 ft 3 /s Aug. 24, 1966.





1 37

14306090

120183

n

19 1919191919191919


250%

0 00111114

.8

.9

.9

.0

.1

.3

.5

.9

.1

520%

0 00001112

.6

.6

.6

.7

.8

.0

.2

.5

.7

1010%

000000.112

.5

.5

.5

.6

.7

.9

.1

.4

.1

20 505% 2%

0.4 0.40.40.50.60.81.01.31.7

1001%



1 37

15306090



n

20 202020202020

250%

449 381312252192146122

520%

690 549419329254195164

1010%

891 680488372290224190

254%

1200 869574421330259220

502%

1470 1030636452356282240

1001%



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

2020

Systematic n - 20 historical n = 0 Weighted skew = 0.279

98


14042500 CAMAS CREEK NEAR URIAH, OR

LOCATION.~Lat 45°09'25", long 118°49'10", in SE 1/4 SE 1/4 sec.3, T.5 S., R.32 E., Umatilla County, Hydrologic Unit 17070202, on right bank 1.2 mi upstream from Cable Creek, 5.8 mi east of Ukiah, and at mile 18.7.


PERIOD OF RECORD. May 1914 to September 1917, November 1919 to July 1920, November 1920 to June 1924, March 1932 to June 1940 (fragmentary), November 1940 to 1987. Monthly discharge only for some periods, published in WSP 1318. Published as "above Cable Creek, near Ukiah" 1914-17, 1919-24.

REVISED RECORDS.--WSP 1448: 1916, 1920, 1922(M), 1924.

GAGE. Water-stage recorder. Datum of gage is 3,588.61 ft above National Geodetic Vertical Datum of 1929 (levels by State Highway Department). May 1, 1914, to June 30, 1924, nonrecording gage and Mar. 1, 1932, to July 2, 1940, water-stage recorder at site 1.2 mi downstream at different datum.


AVERAGE DISCHARGE. 51 years (water years 1915-17, 1922-23, 1942-87), 96.9 ftVs, 70,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,840 ft 3/s Jan. 30, 1965, gage height, 5.21 ft; maximum gage height, 5.92 ft Jan. 24, 1982 (ice jam); minimum discharge recorded, 1.0 ft 3/s Aug. 9, 1932, June 24 to July 2, 1940.





1 37

14306090

120183

n

51 5151515151515151


23333456

250%

.9

.0

.2

.4

.8

.5

.2

.112

520%

2 22223447

.2

.3

.4

.6

.9

.4

.1

.8

.8

1010%

1. 2.2.2.2.3.3,4.6.

.9

.0

.1

.3

.6

.0,6.3.1

205%

1.7 1.71.92.12.32.73.44.15.0

50

1, 1.1,1.2.2.3.3.4.

2%

,5 .5.6.9.1.4.1.8.0

100

111112233

1%

.4

.4

.5

.7

.9

.3

.9

.7

.5



1 37

15306090



n

51 515151515151

250%

S34 721612512407322271

520%

1210 1020838686556441368

1010%

1490 1230976780642511424

254%

1880 15201140879739591485

502%

2200 17401260941803645525

1001%

2540 19801370995862696561



T725 2 5 10 25 50 1CK) 80% 50% 20% 10% 4% 2% 1%

712106016001990254029803440

Systematic n » 63 historical n = 0 Weighted skew > 0.150

99


14044000 MIDDLE FORK JOHN DAY RIVER AT RITTER, OR

LOCATION.--Lat 44°53'20", long 119°08'25", in SW 1/4 NW 1/4 sec.8, T.8 S., R.30 E. f Grant County, Hydrologic Unit 17070203, on left bank 0.2 mi south of Ritter, 0.8 mi downstream from Twelvemile Creek, and at mile 14.9.



REVISED RECORDS. WSP 739: 1931. WSP 1218: 1950. WSP 1448: 1930-32, 1937, drainage area.




EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,730 ft 3/s Jan. 30, 1965, gage height, 8.39 ft, from rating curve extended above 2,200 ft 3 /s; maximum gage height, 9.13 ft Feb. 1, 1963, Ice jam; minimum discharge,

0.90 ft /s Aug. 19, 20, 1966.





1 37

14306090

120183


n

57 5757575757575757

250%

13 1517192126303554

520%

6.4 7.58.4101216202537

1010%

4.2 4.95.46.78.712172130

205%

2.9 3.33.64.66.410141825

502%

1.9 2.12.23.04.57:8121520

1001%

1.4 1.51.52.13.56.6101418



1 37

15306090



n

58 585858585858

250%

1480 135012001050906766663

520%

2190 19401670147012501060917

1010%

2630 229019201690143012301060

254%

3140 267021701910161014001210

502%

3500 293023302040172015101310

1001%

3840 316024602160182016001390



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1640 2410 2940 3630 4150



100


14044500 FOX CREEK AT GORGE, NEAR FOX, OR

LOCATION.--Lat 44°37'30", long 119°15'10", in SW 1/4 sec.8, T.ll S., R.29 E., Grant County, Hydrologic Unit 17070202, on left bank 0.5 mi upstream from head of gorge and 6 mi southwest of Fox.

DRAINAGE AREA. 90.2 mi2 ; at site used prior to June 12, 1952, 91.5 mi 2 .


GAGE. Water-stage recorder. Elevation of gage is 4,240 ft National Geodetic Vertical Datum of 1929 (from topographic map). Prior to June 12, 1952, at site 0.5 mi downstream at different datum.

REMARKS. Diversions for irrigation of 4,800 acres upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,860 ft 3/s Mar. 25, 1952, gage height, 5.85 ft, former site and datum, from rating curve extended above 200 ft /s on basis of slope-area measurement of peak flow; no flow at times in each year.






1 37

14306090

120183

n

27 2727272727272727


2 550% 20%

0.0 0. 0.0 0.0.0 0.0.0 0,0.0 0,0.0 0.0.1 0.0.1 0,0.7 0,

,0 ,0,0,0.0.0.0.0.1

1010%

0, 000,0000,0

.0

.0

.0

.0

.0

.0

.0

.0

.1

205%

0.0 0.00.00.00.00.00.00.00.0

502%

0.0 0.00.00.00.00.00.00.00.0

100

0. 0,0.0.0,0.0.0.0,

1%

.0 ,0.0.0.0.0.0.0.0



1 37

15306090



n

28 282828282828

250%

294 23818614912310084

520%

549 451334249190154128

1010%

739 613430300216176145

254%

994 832544345234192158

502%

1190 1000621370242199163

1001%

1390 1180691387246203166



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

217 410 2800


28 historical n = 0 0.171

101


14046000 NORTH FORK JOHN DAY RIVER AT MONUMENT, OR

LOCATION.~Lat 44°48'50", long 119°25'50", in SE 1/4 sec.2, T.9 S., R.27 E. f Grant County, Hydrologic Unit 17070202, on right bank just downstream from entrance to canyon, 0.7 mi downstream from Cottonwood Creek, 0.8 mi west of Monument, and at mile 15.3.


PERIOD OF RECORD. March 1925 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS. WSP 754: 1932(M). WSP 1448: 1927, 1931(M), 1949.

GAGE. Water-stage recorder. Datum of gage is 1,959.64 ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 24, 1925, nonrecording gage and Nov. 24, 1925, to Oct. 16, 1928, water-stage recorder at datum 1.10 ft higher. Oct. 17, 1928, to Sept. 30, 1930, water-stage recorder at datum 1.00 ft higher.

REMARKS. Very slight regulation by small reservoirs upstream. Many small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 33,400 ft 3/s Jan. 30, 1965, gage height, 18.45 ft, from rating curve extended above 17,000 ft 3 /s; minimum discharge, 6 ft 3 /s sometime during period Nov. 2-13, 1936 (result of

freezeup); minimum dally, 17 ft 3 /s Dec. 12, 1932.





1 37

14306090

120183


n

58 5858585858585858

250%

65 69768390

104118136228

520%

40 45515661728497

145

1010%

31 35414650607081

114

205%

25 2934384351617193

502%

19 2328313644526174

1001%

16 2024273239465564



1 37

15306090



n

59 595959595959

250%

7700 697060905310454038503330

520%

11900 1040087907420624052704590

1010%

14800 12700104008580715060205280

254%

18800 15600124009830809068006020

502%

21900 177001370010600867072806490

1001%

25100 198001490011300916076806900



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

9240 14600 18500 24000 28400 33000


102


14046500 JOHN DAY RIVER AT SERVICE CREEK, OR

LOCATION. Lat 44°47'38", long 120°00'20", in NW 1/4 NE 1/4 sec.18, T.9 S., R.23 E., Wheeler County, Hydrologic Unit 17070204, on left bank 0.2 mi downstream from bridge on State Highway 207, 0.8 mi downstream from Service Creek, 0.5 mi southwest of town of Service Creek, and at mile 156.7.


PERIOD OF RECORD. March 1925 to September 1926, October 1929 to 1987. Monthly discharge only March 1925 to September 1926, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 1,632.42 ft above National Geodetic Vertical Datum of 1929. See WSP 1738 for history of changes prior to Feb. 24, 1957.

REMARKS. Slight regulation by several small reservoirs upstream from station. Many small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 40,200 ft 3/s Dec. 23, 1964, gage height, 17.85 ft, from rating curve extended above 14,000 ft 3 /s on basis of slope-area measurement of peak flow; minimum discharge, 6.0 ft /s

Aug. 23, 24, 1973.





1 37

14306090

120183


n

57 5757575757575757

250%

90 929599

110138179233405

520%

45 4648515876

103143253

1010%

29303235415576

109194

205%

20 21222530425886

155

502%

13 13151721304365

118

1001%

9.1 9.511131624355398



1 37

15306090



n

58 585858585858

250%

11000 1010089007670657055404820

520%

17200 156001320011000921077606780

1010%

21500 1920015800128001060089307850

254%

27000 23500188001460012000101008980

502%

31000 26600208001580012800108009670

1001%

35100 296002260016800135001140010300



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

7720 24600 31200 36300


103


14047390 ROCK CREEK ABOVE WHYTE PARK, NEAR CONDON, OR

LOCATION. Lat 45°15'53", long 120°01'15', in NE 1/4 SW 1/4 sec.36, T.3 S., R.22 E., Gilliam County, Hydrologic Unit 17070204, on left bank 0.2 mi upstream from Whyte Park, 8.0 mi northeast of Condon, and at mile 40.8.



GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,714.50 ft above National Geodetic Vertical Datum of 1929 (Soil Conservation Service temporary bench mark).



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,360 ftVs May 5, 1983, gage height, 9.17 ft; maximum gage height, 9.4 ft Feb. 6, 1979; minimum discharge, 0.08 ftVs Aug. 17, 19, 20, 22, 1977.




PERIOD(CONSECUTIVEDAYS)

1 37

14306090

120183


1 37

15306090

n

11 1111111111111111

n

12 121212121212

DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCEINTERVAL, IN YEARS, AND ANNUAL NON-EXCEEDANCE PROBABILITY, IN PERCENT

2 5 10 20 5050% 20% 10% 5% 2%

0.7 0.3 0.2 0.7 0.3 0.20.7 0.3 0.20.8 0.3 0.21.0 0.4 0.21.6 0.6 0.42.6 1.1 0.63.6 1.5 0.86.7 3.3 2.2


DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCEINTERVAL, IN YEARS, AND ANNUAL


2 5 10 25 5050% 20% 10% 4% 2%

635 1220 1620 549 987 1250451 775 951355 611 740283 491 593225 360 416187 303 351

1001%

:: --

1001%


DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCE INTERVAL, INYEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1. 25 80%

440

2 5 10 25 50 100 50% 20% 10% 4% 2% 1%

885 1780 2570


104


14048000 JOHN DAY RIVER AT MCDONALD FERRY, OR (National stream quality accounting network station)

LOCATION. Lat 45°35'16", long 120°24'30", in NE 1/4 NW 1/4 sec.11, T.I N., R.19 E., Sherman County, Hydrologic Unit 17070204, on left bank at McDonald Ferry, 0.8 mi downstream from Rock Creek, 10 mi east of Klondike, and at mile 20.9.

GAGE AREA. 7,580 mi2 , approximately.

PERIOD OF RECORD. December 1904 to 1987. Prior to Oct. 1, 1930, published as "at McDonald."

REVISED RECORDS. WSP 1094: 1894(M), 1932(M). WSP 1448: 1908-9, 1912, 1916, 1920(M), 1922, 1932.

GAGE. Water-stage recorder. Datum of gage is 392.27 ft above National Geodetic Vertical Datum of 1929. Prior to Aug. 30, 1930, nonrecording gage at same site and datum.


AVERAGE DISCHARGE. 82 years (water years 1906-87), 2,103 ft 3/s, 1,524,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 42,800 ft 3/s Dec. 24, 1964, gage height, 13.59 ft, fromfloodmark, from rating curve extended above 11,000 ft 3/s on basis of slope-area measurement of peak flow; no flow for part of Sept. 2, 1966, Aug. 15 to Sept. 16, 1973, Aug. 13, 14, 19-25, 1977.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of 1894 reached a stage of 12.8 ft, from floodmarks, discharge, 39,100 ft /s, from rating curve extended above 22,000 ft /s.





1 37

14306090

120183


n

82 8282828282828282

250%

91 9296

116117151187241407

520%

37 4042455375

105148264

1010%

20 222522324975

112209

205%

10 12141019335688

172

502%

0.0 0.00.02.48.1214066

138

1001%

0.0 0.00.00.00.0153155

118



1 37

15306090



n

82 828282828282

250%

11600 1060093008080691058905170

520%

17500 159001370011500980083607340

1010%

21500 1930016300134001140097108560

254%

26500 23300193001540013000111009880

502%

30200 260002140016700141001200010700

1001%

33800 287002320017800150001280011500



1.25 80%

250% 20%

10 10%

254%

50 2%

1001%

8030 12600 19400 24200 30500 35200 40100


105

SANDY RIVER BASIN

14135500 SALMON RIVER ABOVE BOULDER CREEK, NEAR BRIGHTWOOD, OR

LOCATION.~Lat 45°21'40", long 122°00 r 40", in SW 1/4 SE 1/4 sec.25, T.2 S., R.6 E., Clackamas County, Hydrologic Unit 17080001, on left bank 1.1 mi upstream from Boulder Creek, 1.2 mi south of Brightwood, and 2.0 mi upstream from mouth.



GAGE. Water-stage recorder. Datum of gage is 1,089.2 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers).


AVERAGE DISCHARGE. 16 years (water years 1937-52) 452 ft 3 /s, 327,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 11,700 ft 3/s Dec. 14, 1946, gage height, 7.08 ft, from rating curve extended above 4,100 ft 3/s by logarithmic plotting; minimum, 59 ft 3/s Nov. 30, Dec. 1, 1936, Sept. 25, 26, 1940.





1 37

14306090

120183


n

15 1515151515151515

250%

81 82838691

100111134217

520%

70 717275798692

105156

1010%

65 65677074798492

132

205%

61 61636669747883

114

50 1002% 1%




1 37

15306090



n

16 161616161616

250%

3270 2270169012901100916834

520%

4760 344024901780142011101010

1010%

5960 449031502120160012101100

254%

7760 624041702560180012901170

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3290 7340 9050 11300


157

DESCHUTES RIVER BASIN

14050500 CULTUS RIVER ABOVE CULTUS CREEK, NEAR LA PINE, OR

LOCATION. Lat 43°49'06", long 121°47'40", near line between sees.20 and 29, T.20 S., R.8 E., Deschutes County,Hydrologic Unit 17070301, Deschutes National Forest, on left bank at highway culvert, 2 mi upstream from Cultus Creek, and 18 mi northwest of La Pine.

DRAINAGE AREA. 16.5 mi 2 , hydrologic drainage boundry uncertain owing to ground-water exchange.

PERIOD OF RECORD. October 1922 to September 1925, October 1937 to 1987. Monthly discharge only October 1937, published in WSP 1318. Prior to Oct. 1, 1964, published as "near Lapine."

REVISED RECORDS. WSP 1448: 1923-25, 1947.

GAGE. Water-stage recorder and cement bag control. Elevation of gage is 4,450 ft, by barometer. Oct 1, 1922, to Sept. 30, 1925, nonrecording gage at site 0.5 mi upstream at different datum.

REMARKS. No regulation or diversions upstream from station.

AVERAGE DISCHARGE. 53 years, 63.2 ft 3/s, 45,790 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 178 ft 3/s May 31, 1956, gage height, 1.04 ft; maximum gage height, 1.32 ft May 16, 1972 (backwater from Crane Prairie Reservoir); minimum discharge, 26 ft 3/s May 26-31, Nov. 23 to Dec. 4, 1959.





1 37

14306090

120183


n

51 5151515151515151

250%

43 4344454648505155

520%

36 3737373940414245

1010%

33 3333343536373840

205%

30 3131313334343536

502%

27 2828283030313132

1001%

26 2626262828292930



1 37

15306090



n

53 535353535353

250%

88 878684828078

520%

112 1101081061029896

1010%

126 124122118113108106

254%

143 141137132126119117

502%

155 152148142135127125

1001%

166 163158151143134132



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

90 115 130 148 161 174


107


14051000 CULTUS CREEK ABOVE CRANE PRAIRIE RESERVOIR, NEAR LA PINE, OR

LOCATION. Lat 43°49'17", long 121°49'22", in SW 1/4 sec.19, T.20 S., R.8 E., Deschutes County, Hydrologic Unit 17070301, on left bank 1,000 ft upstream from highway bridge, 1.0 mi downstream from Cultus Lake, and 19 mi northwest of La Pine.

DRAINAGE AREA. 33.2 mi , hydrologic drainage boundary uncertain because of interbasin ground-water exchange.

PERIOD OF RECORD. March to September 1924 (published as "above Crane Prairie, near Lapine"), October 1937 to 1987. Monthly discharge only October 1937 to September 1949, published in WSP 1318. Records for October 1923 to February 1924, published in WSP 594, have been found to be unreliable and should not be used. Published as "near Lapine" 1937-64.

REVISED RECORDS. WSP 1568: 1957. WRD Oreg. 1973: 1972. See also PERIOD OF RECORD.

GAGE. Water-stage recorder. Elevation of gage is 4,545 ft, by barometer. Mar. 1 to Sept. 30, 1924, nonrecording gage at site 100 ft upstream at different datum.

REMARKS. Some regulation by fish screens at Cultus Lake since 1962. No diversion upstream from station.

AVERAGE DISCHARGE. 50 years (water years 1938-87), 22.6 ft 3 /s, 16,370 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 336 ft 3/s Dec. 25, 1964, gage height, 4.15 ft, from floodmark, from rating curve extended above 90 ft 3 /s; no flow at times.





1 37

14306090

120183

n

23 2323232323232323


2 550% 20%

0.1 0.0 0.1 0.00.1 0.00.1 0.00.2 0.00.4 0.00.8 0.11.9 0.45.8 1.1

10 2010%

0 00000000

.0

.0

.0

.0

.0

.0

.0

.1

.3

0 00000000

5%

.0

.0

.0

.0

.0

.0

.0

.0

.1

502%

0.0 0.00.00.00.00.00.00.00.0

1001%

::



1 37

15306090



n

25 252525252525

250%

101 1009691826754

520%

1561541481371229979

1010%

189 18818016514711894

254%

229 227217198174140111

502%

256 254242220193154122

1001%

281 279266241210168132



1.25 2 80% 50%

5 20%

10 10%

25 4%

50 2%

100 1%

156 192 239 274



108


14051000 CULTUS CREEK ABOVE CRANE PRAIRIE RESERVOIR, NEAR LA PINE, OR--Continued






1 37

14306090

120183


n

24 2424242424242424

250%

0.1 0.10.10.10.10.20.51.35.9

520%

0.0 0.00.00.00.00.00.10.42.7

1010%

0.0 0.00.00.00.00.00.00.21.6

20 505% 2%

0.0 0.0 0.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.1 0.01.0 0.5

1001%



1 37

15306090



n

25 252525252525

250%

104 1029890796148

520%

169 1651571421239473

1010%

214 20819517515011488

254%

271 261243215182138105

502%

314 300278243204154116

1001%

356 339311270225170126



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


historical n

109

DESCHOTES RIVER BASIN

14052000 DEER CREEK ABOVE CRANE PRAIRIE RESERVOIR, NEAR LA PINE, OR

LOCATION. Lat 43°48'48", long 121°50'18", in SE 1/4 SW 1/4 sec.25, T.20 S., R.7 E., Deschutes County, Hydrologic Unit 17070301, on right bank 150 ft downstream from highway bridge, 1.2 mi downstream from Little Cultus Lake, and 19 mi northwest of La Pine.

DRAINAGE AREA. 21.5 mi2 , hydrologic drainage boundary uncertain because of interbasin ground-water exchange.

PERIOD OF RECORD. February to September 1924 (published as "above Crane Prairie, near Lapine"). October 1937 to 1987. Monthly discharge only October 1937 to September 1949, published in WSP 1318. Records for October 1923 to January 1924, published in WSP 594, have been found to be unreliable and should not be used. Published as "near Lapine" 1937-64.

REVISED RECORDS. See PERIOD OF RECORD.

GAGE. Water-stage recorder and sharp-crested weir control. Elevation of gage is 4,520 ft, by barometer. Feb. 1 to Sept. 30, 1924, nonrecording gage at site 75 ft upstream at various datums. Oct. 1, 1937, to Sept. 30, 1938, water-stage recorder at bridge 150 ft upstream at different datum. Oct. 1, 1938, to Aug. 13, 1968, water-stage recorder and wooden weir control at present site and datum 0.60 ft higher.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 200 ftVs, estimated, Dec. 25, 1964; no flow at times.






1 37

14306090

120183

n

31 3131313131313131


250%

0.0 0.00.00.10.10.10.20.31.2

520%

0. 0,0,0.0,00,0,0,

.0

.0

.0

.0

.0

.1

.1

.1

.7

1010%

0.0 0.00.00.00.00.00.10.10.5

205%

0.0 0.00.00.00.00.00.00.10.4

50

0, 0,00,000,00

2%

.0

.0

.0

.0

.0

.0

.0

.0

.3

100

0, 00000000

1%

.0

.0

.0

.0

.0

.0

.0

.0

.2


DISCHARGE, IN FT /S, FOR INDICATED RECURRENCEPERIOD(CONSECUTIVEDAYS)

1 37

15306090

n

50 505050505050

250%

51 494640342520

INTERVAL,EXCEEDANCE

520%

73 706457493728


1010%

84 797365564333

IN

254%

95 898073644937

ANNUALPERCENT

502%

101 948577695340

1001%

106 988880725642



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

32 51 78 98 123 143 163



110


14052500 QUINN RIVER NEAR LA PINE, OR

LOCATION. Lat 43°47'03", long 121°50'06", in SW 1/4 NW 1/4 sec.l, T.21 S., R.7 E. f Deschutes County, Hydrologlc Unit 17070301, Deschutes National Forest, on left bank at flow line of Crane Prairie Reservoir, 150 ft downstream from springs at head of river, and 18 mi northwest of La Pine.

DRAINAGE AREA. Indeterminate, normal flow is entirely from springs 150 ft upstream.

PERIOD OF RECORD. June 1922 to September 1925, October 1937 to 1987. Published as "above Crane PrairieReservoir near Lapine" 1922-25, and as "near Lapine" 1937-64. Monthly discharge only October 1937, published in WSP 1318.

REVISED RECORDS.--WSP 1448: 1939, 1941.

GAGE. Water-stage recorder and log control. Datum of gage is 4,442.1 ft above National Geodetic Vertical Datum of 1929, based on elevation of Crane Prairie Reservoir when slack, water reached station. June 1, 1922, to Sept. 30, 1925, nonrecording gage at site 150 ft downstream at different datum.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 59 ft 3/s July 4, 1949, gage height, 1.97 ft; maximum gage height, 3.92 ft June 25, 1943 (backwater from Crane Prairie Reservoir); practically no flow Nov. 14, 1941.





1 37

14306090

120183


n

49 4949494949494949

250%

15 1515171718181920

8 9999

520%

.8

.0

.2

.5

.910111113

6 66566779

1010%

.1

.3

.5

.8

.3

.8

.3

.9

.1

205%

4.1 4.44.63.43.94.45.05.56.6

0 00122334

502%

.0

.0

.0

.7

.1

.5

.0

.5

.4

100

0, 0.0.0.1.1.2.2.3.

1%

.0

.0

.0

.9

.3

.6

.0

.5

.3



1 37

15306090

INTERVAL, EXCEEDANCE

n

50 505050505050

250%

38 393938373635

520%

48 484847464544

IN YEARS, AND ANNUAL PROBABILITY, IN PERCENT

1010%

53 525251504947

254%

56 555554535150

502%

58575656545351

1001%

60 585757555452



1.25 80%.

250%

5 20%

10 10%

25 4%

50 2%

100 1%

29 37 48 54 61 66 70

Systematic n = 50 historical n = Weighted skew = -0.289

111


14054000 DESCHUTES RIVER BELOW CRANE PRAIRIE RESERVOIR, NEAR LA PINE, OR

LOCATION. Lat 43845'13", long 121846'57", in SW 1/4 NW 1/4 sec.16, T.21 S., R.8 E., Deschutes County, Hydrologic Unit 17070301, Deschutes National Forest, on left bank 0.1 mi downstream from Crane Prairie Dam, 15 mi northwest of La Pine, and at mile 238.2.

DRAINAGE AREA. 254 mi2 , hydrologic drainage boundary uncertain because of interbasin ground-water exchange.

PERIOD OF RECORD. August 1907 to November 1908 and August 1912 to September 1913 (fragmentary), October 1913 toSeptember 1917, February 1922 to 1987. Monthly discharge only for some periods, published in WSP 1318.Prior to October 1949, published as "at Crane Prairie, near Lapine." Published as "near Lapine" 1949-64.

REVISED RECORDS. WSP 1218: Drainage area. WSP 1318: 1929(M).

GAGE. Water-stage recorder. Datum of gage is 4,419.78 ft above National Geodetic Vertical Datum of 1929 (Pacific Power & Light Co. bench mark). Aug. 15, 1907, to Sept. 30, 1917, and Feb. 23 to June 8, 1922, nonrecording gage at site 0.5 mi upstream at different datums. June 9, 1922, to May 9, 1932, nonrecording gage or water-stage recorder at present site and datum.

REMARKS. Flow regulated since 1922 by Crane Prairie Reservoir (station 14053500). No diversion upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,170 ft 3/s July 28, 1947, gage height, 3.34 ft; no flow Nov. 15, 1978, when gates in Crane Prairie Dam were closed.





1 37

14306090

120183


n

64 6464646464646464

250%

2930323537476175

121

520%

9.91112141620253165

1010%

5.2 5.66.17.89.412141743

205%

2.9 3.23.44.86.07.48.81030

11123445

502%

.4

.6

.7

.6

.6

.2

.8

.318

100

0 0112233

1%

.8

.9

.0

.7

.5

.9

.1

.313



1 37

15306090



n

65 656565656565

250%

510 506500482449399363

520%

662 656640615571499457

1010%

768 760732703652564520

254%

908 899849815755644601

502%

1020 1010936900833703662

1001%

1130 11201020986912762724



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = weighted skew =

historical n

112


14054500 BROWN CREEK NEAR LA PINE, OR

LOCATION. Lat 43°42'57", long 121°48'10", in NE 1/4 SW 1/4 sec.29, T.21 S., R.8 E., Deschutes County, Hydrologic Unit 17070301, in Deschutes National Forest, on right bank at highway crossing and 15 mi northwest of La Pine.

DRAINAGE AREA. 21 mi 2 , approximately, hydrologic drainage boundary uncertain owing to ground-water exchange.

PERIOD OF RECORD. May 1922 to September 1925, July 1938 to 1987. Monthly discharge only July 1938 to September 1949, published in WSP 1318. Prior to Oct. 1, 1964, published as "near Lapine."

REVISED RECORDS. WSP 1448: 1922-24. WDR OR-78-1: 1977.

GAGE. Water-stage recorder. Elevation of gage is 4,370 ft, from topographic map. May 24, 1922, toSept. 30, 1925, nonrecording gage, and July 1, 1938, to Nov. 1, 1945, water-stage recorder at site 0.4 mi downstream at different datums. Nov. 2, 1945, to Aug. 25, 1971, water-stage recorder at site 0.8 mi upstream at datum of 4,372.94 ft above National Geodetic Vertical Datum of 1929.

REMARKS. No regulation. No diversion upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 104 ft 3/s Aug. 4, 1956, gage height, 1.64 ft; maximum gage height, 3.50 ft Jan. 30, 1980, backwater from ice; minimum discharge, 16 ft 3/s July 22-25, 1941, and at times December 1941 to March 1942.





1 37

14306090

120183


n

50 5050505050505050

250%

30 3030313132333436

520%

24 2424242525262628

1010%

21 2121212222222324

205%

18 1919191920202021

502%

16 1616161717171718

1001%

15 1515151515151616



1 37

15306090



n

52 525252525252

250%

51 504949484746

520%

63 626161605957

1010%

70 686767666563

254%

78 757474737270

502%

82 807878777674

1001%

87 838282817977



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

41 76 87


113


14055500 ODELL CREEK NEAR CRESCENT, OR

LOCATION. Lat 43°32'51", long 121°5T 41", in SW 1/4 SW 1/4 sec.25, T.23 S., R.6 E., Klamath County, Hydrologic Unit 17070301, on left bank 1,000 ft downstream from Odell Lake, 3 mi north of town of Crescent Lake, and 14 mi northwest of Crescent.


PERIOD OF RECORD. August, September 1911, August, September 1912, January, February, May to November 1913, April to August 1914, December 1923 to June 1924, May 1933 to September 1976. Gage heights and discharge measurements only August, September 1911, January 1913. Published as Odell Lake outlet near Crescent 1911-12. Records for January to July 1912, published in WSP 332, have been found to be unreliable and should not be used.

GAGE. Water-stage recorder. Datum of gage is 4,799.05 ft above National Geodetic Vertical Datum of 1929. Prior to June 7, 1924, nonrecording gage at several sites within 700 ft of present site at various datums.

REMARKS. Flow affected occasionally in winter by ice jams at outlet, of Odell Lake, and slightly affected at times by seiches in Odell Lake. No diversion upstream from station.

AVERAGE DISCHARGE. 43 years (water years 1933-76), 82.5 ft 3/s, 28.73 in/yr, 59,770 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,100 ft 3/s Dec. 25, 1964, gage height, 2.60 ft, from rating curve extended above 250 ft 3/s; minimum, 9 ft 3 /s sometime during period Sept. 7-30, 1934.






1 37

14306090

120183


1 37

15306090

n

42 4242424242424242

n

43434343434343

INTERVAL, IN YEARS, AND ANNUAL NON-EXCEEDANCE PROBABILITY, IN PERCENT

2 5 10 20 5050% 20% 10% 5% 2%

27 19 15 13 11 29 20 16 14 1131 21 17 15 1232 23 19 16 1335 24 20 17 1437 27 22 19 1641 29 25 21 1846 34 28 25 2159 45 39 34 30


DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCEINTERVAL, IN YEARS, AND ANNUAL


2 5 10 25 5050% 20% 10% 4% 2%

209 310 400 546 681 201 297 383 520 648187 271 345 461 568166 232 285 366 437148 195 228 274 310128 163 186 217 240115 143 162 185 201

1001%

9.6 9.911121314161927

1001%

844 802694517348263218


DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCE INTERVAL, INYEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1. 2580%

171

2 5 10 25 50 100 50% 20% 10% 4% 2% 1%

236 345 430 556 662 781


114


14056500 DESCHUTES RIVER BELOW WICKIUP RESERVOIR, NEAR LA PINE, OR

LOCATION.~Lat 43°41'10«, long 121°41'13", in NW 1/4 NE 1/4 sec.7, T.22 S., R.9 E., Deschutes County, Hydrologic Unit 17070301, on left bank 1,000 ft downstream from Wickiup Dam, 9 mi west of La Pine, and at mile 226.4.

DRAINAGE AREA. 483 mi , hydrologic drainage boundary uncertain because of interbasin ground-water exchange.

PERIOD OF RECORD. June 1938 to 1987. Monthly discharge only June 1938, published in WSP 1318. Published as "near Lapine" 1938-64.

REVISED RECORDS. WSP 1448: 1944<m), 1947-51<m).


REMARKS. Flow regulated by Crane Prairie Reservoir (station 14053500), and since 1942 by Wickiup Reservoir(station 14056000). Some leakage from Crane Prairie and Wickiup Reservoirs does not pass station. Some spill bypassed station in 1955. Crater Creek canal diverts water upstream from station to Tumalo Creek basin.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,280 ft 3/s July 28 to Aug. 1, 1956, July 31, Aug. 1, 2, 1962; minimum, 1.9 ft 3 /s Nov. 10, 1973; minimum daily, 10 ftVs Jan. 17, 1952.





1 37

14306090

120183


n

44 4444444444444444

250%

32 33384452606986

215

520%

16 17192123252731

111

1010%

12 1314151516171978

205%

9.5 1011111112121258

7 8988887

502%

.7

.4

.1

.7

.4

.4

.0

.841

100

67876665

1%

.8

.5

.0

.4

.9

.8

.3

.833



1 37

15306090



n

45 454545454545

250%

1910 189018601820175016701590

520%

2090 208020602030197018701780

1010%

2170 216021502120206019601860

254%

2230 223022202200215020501940

502%

2270 226022602250220021001990

1001%

2290 229022802270224021402020



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

115


14057000 DESCHUTES RIVER AT PRINGLE FALLS, NEAR LAPINE, OR

LOCATION. Lat 43°44'20", long 121°36'50", In SW 1/4 sec.23, T.21 S., R.9 E., Deschutes County, Hydrologic Unit 17070301, on left bank. 0.5 mi upstream from bridge at Pringle Falls, 7 mi northwest of Laplne, and at mile 217.

DRAINAGE AREA.--507 ml , hydrologlc drainage boundary uncertain owing to ground-water exchange.

PERIOD OF RECORD. October 1915 to September 1917, June 1922 to September 1952. Monthly discharge only for some periods, published in WSP 1318.

GAGE.--Water-stage recorder. Datum of gage Is 4,243.26 ft above National Geodetic Vertical Datum of 1929 (Forest Service bench mark). Prior to June 6, 1922, staff gage at practically same site at datum 3.09 ft higher. June 6, 1922, to Nov. 9, 1947, water-stage recorder at present site at datum 2.00 ft higher.

REMARKS. Flow regulated since 1922 by Crane Prairie Reservoir, and since 1942 by Wickiup Reservoir. Crater Creek Canal diverts water above station to Tumalo Creek basin.

AVERAGE DISCHARGE. 32 years (water years 1916-17, 1923-52), 727 ft 3 /s, 526,300 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,160 ft 3/s Sept. 4, 8, 1951, gage height, 5.94 ft; minimum, 27 ft 3 /s Jan. 19, 1952.





1 37

14306090

120183


n

18 1818181818181818

250%

543 544550554560570585596632

520%

473 473477482492501510517547

1010%

436 436439445458466471479506

205%

405 405407415431438440448474

50 1002% 1%

--



1 37

15306090



n

19 191919191919

250%

989 987983971955919888

520%

1100 10901090108010601020987

1010%

1150 115011401130112010701040

254%

1210 120012001190117011301090

50 1002% 1%

II II --



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1280


116


14057000 DESCHUTES RIVER AT PRINGLE FALLS, NEAR LAPINE, OR Continued





1 37

14306090

120183


n

17 1717171717171717

250%

58 6069768693

107155315

520%

27 28353741445172

204

1010%

18 19252628313546

161

205%

13 14191921232632

132

50 1002% 1%



1 37

15306090



n

18 181818181818

250%

1900 188018401810176016901600

520%

2170 216021402130207019901890

1010%

2290 228022802270221021302010

254%

2400 239024002410234022602130

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


117


14057500 FALL RIVER NEAR LA PINE, OR

LOCATION. Lat 43°47'48", long 121°34'18", in NW 1/4 SE 1/4 sec.31, T.20 S., R.10 E. r Deschutes County, Hydrologic Unit 17070301, on left bank 50 ft downstream from pond spillway at State fish hatchery, 9 mi northwest of La Pine, and at mile 4.8.

DRAINAGE AREA. 45.1 mi 2 , hydrologic drainage boundary uncertain because of interbasin ground-water exchange.

PERIOD OF RECORD. July 1938 to 1987. Records for May to September 1912 at site 3 mi downstream not equivalent owing to difference in drainage area. Prior to Oct. 1, 1964, published as "near Lapine."

REVISED RECORDS. WSP 984: 1938-42(M,m).

GAGE. Water-stage recorder. Elevation of gage is 4,220 ft, by barometer.

REMARKS. Diversion only to ponds at fish hatchery 50 ft upstream from station, from which water returns to river upstream from station. Stream is spring fed and momentary extremes are caused by operation of fish hatchery.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 254 ft 3/s June 5, 1965, gage height, 2.02 ft; minimum discharge, 67 ft 3/s sometime during period Sept. 20-30, 1969.





1 37

14306090

120183


n

48 4848484848484848

250%

133 134134135137139141142144

520%

111 111111112113115116117119

1010%

99100100100101103104105106

205%

90 9091919193949496

502%

81 8181818182838385

1001%

74 7474757575767678



1 37

15306090



n

49 494949494949

250%

169 169168167166164163

520%

199 198198197195193191

1010%

214 214213212209207205

254%

230 229229228224222219

502%

239238239237234231228

1001%

248247247245242238235



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


118


14060000 CRESCENT CREEK AT CRESCENT LAKE, NEAR CRESCENT, OR

LOCATION. Lat 43°30'11", long 121°58'20", in SE 1/4 SW 1/4 sec.11, T.24 S., R.6 E., Klamath County, Hydrologic Unit 17070302, Deschutes National Forest, on left bank 400 ft downstream from Crescent Lake Dam, 0.5 mi south of town of Crescent Lake, 14 mi west of Crescent, and at mile 29.9.

DRAINAGE AREA. 60.7 mi , hydrologic drainage boundary uncertain owing to ground-water exchange.

PERIOD OF RECORD. January to September 1911 (gage heights and discharge measurements only), January 1912 to July 1915, July to September 1927, May 1928 to 1987. Published as Crescent Lake outlet near Crescent January 1911 to September 1912, and as Crescent Creek at outlet of Crescent Lake, near Crescent October 1913 to July 1915.

REVISED RECORDS. WSP 1218: Drainage area.

GAGE. Water-stage recorder and Parshall flume. Datum of gage is 4,819.96 ft above National Geodetic Vertical Datum of 1929. See WSP 1935 for history of changes prior to Sept. 11, 1956.

REMARKS. Flow regulated since 1922 by Crescent Lake (station 14059500). No diversion upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 313 ft 3 /s July 9, 1929, Aug. 9, 1936; no flow at times.






1 37

14306090

120183

n

58 5858585858585858


250%

111,1,1,2236

.2

.2

.4

.8

.8

.2

.6

.2

.2

520%

0, 0.0,0,00000,

.0

.0

.0

.0

.0

.0

.0

.0

.1

1010%

0.0 0.00.00.00.00.00.00.00.0

205%

0.0 0.00.00.00.00.00.00.00.0

50

0, 0,0,0,0.000,0,

2%

.0

.0

.0

.0

.0

.0

.0

.0

.0

100

0 0,0.000000,

1%

.0

.0

.0

.0

.0

.0

.0

.0

.0



1 37

15306090



n

59 595959595959

250%

228 226221213203181156

520%

267 265260253245226206

1010%

280 277272267260242228

254%

287 284279277271254245

502%

290 287282281275260254

1001%

292 289284284278263260



1.25 80%

250%

5 20%

10 10%

25 4%

50. 2%

100 1%


historical n

119


14061000 BIG MARSH CREEK AT HOEY RANCH, NEAR CRESCENT, OR

LOCATION. Lat 43°28'40", long 121°54'50", NW 1/4 SW 1/4 in sec.20, T.24 S. f R.7 E., Klamath County, Hydrologic Unit 17070302, about 0.5 mi upstream from mouth, 2 mi east of Crescent Lake, and 11 mi west of Crescent.

DRAINAGE AREA.--51.5 mi , hydrologic drainage boundary uncertain owing to ground-water exchange.

PERIOD OF RECORD.--April 1912 to December 1913, April to September 1914, Apr.l to May 1924, May 1928 to September 1930, May 1931 to September 1958.

GAGE. Water-stage recorder. Elevation of gage is about 4,630 ft (from topographic map). Prior to Sept. 8, 1939, staff gages or water-stage recorder at several sites within 0.2 mi of present site at various datums.


COOPERATION. Records for water years 1924, 1928-58, furnished by Oregon Water Resources Department.

AVERAGE DISCHARGE.--30 years (water years 1912-13, 1928-30, 1931-58), 72.1 ftVs.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 602 ft 3 /s May 30, 1956, gage height 5.54 ft; (maximum gage height 4.56 ft Dec. 28, 30, 31, 1945 (backwater from ice)); no flow Mar. 27, 1935, result of unusual regulation, but cause unknown.




PERIOD(CON

SECUTIVEDAYS)

137

14306090

120183



n

28 2828282828282828

250%

16 1617181920222431

520%

9.21011111214151721

1010%

6.3 7.68.38.69.311121418

205%

4.4 5.96.46.67.29.1101215

24445789

502%

.7

.3

.7

.8

.2

.2

.3

.513

100

1 3334678

1%

.9

.4

.8

.8

.1

.1

.1

.312



1 37

15306090



n

30 303030303030

250%

267 260245222204179152

520%

371 363340311287249208

1010%

437 426395364335288240

254%

517 502459425388331274

502%

573 555502466423357296

1001%

628 605542505454381315



1.2525TO2550100 80% 50% 20% 10% 4% 2% 1%

193276397482594680768

Systematic n = 32historical n =0 Weighted skew = 0.060

120


14063000 LITTLE DESCHUTES RIVER NEAR LA PINE, OR

LOCATION.~Lat 43°41'21", long 121°30'06", in SW 1/4 SW 1/4 sec.2, T.22 S., R.10 E., Deschutes County, Hydrologic Unit 17070302, on right bank 10 ft downstream from highway bridge, 1.1 mi north of La Pine, and at mile 26.8.

DRAINAGE AREA. 859 mi , hydrologic drainage boundary uncertain owing to ground-water exchange.

PERIOD OF RECORD. September 1910 to January 1911, March, April, August. 1911, March to September 1912, June to October 1913, June to November 1918, August to October 1920, May 1924 to 1987. Monthly discharge only for some periods, published in WSP 1318. Published as Deschutes River near Lapine 1910-12, as East Fork. Deschutes River near Lapine 1913-20, and as Little Deschutes River near Lapine 1924-64.

REVISED RECORDS.--WSP 1218: 1950.

GAGE. Water-stage recorder. Datum of gage is 4,192.81 ft above National Geodetic Vertical Datum of 1929. Sept. 1, 1910, to Aug. 31, 1911, nonrecording gage at present site at different datum. Mar. 1 to Sept. 30, 1912, nonrecording gage at site 1.2 mi downstream at different datum. June 1, 1913, to Sept. 28, 1928, nonrecording gage and Sept. 29, 1928, to Sept. 30, 1931, water-stage recorder at present site at different datums.

REMARKS. Flow regulated since 1922 by Crescent Lake (station 14059500). Many diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,660 ft3 /s Dec. 25, 1964, gage height, 8.18 ft; minimum discharge, 8 ftVs Sept. 2, 3, 1931.





1 37

14306090

120183


n

62 6262626262626262

250%

4951535663718293

114

520%

303132353944526075

1010%

23 2324262933404759

205%

18 1819212225323748

502%

13 1414151618242937

1001%

11 1111121314202431



1 37

15306090



n

63 636363636363

250%

543 533508466423371335

520%

836 807758689623544483

1010%

1070 1020940845761662583

254%

1410 132011901050939814708

502%

1710 1570139012101070929802

1001%

2030 18501600138012101040895



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = Weighted skew »

historical n =

121


14064500 DESCHUTES RIVER AT BENHAM PALLS, NEAR BEND, OR

LOCATION.~Lat 43°55'49", long 121024'39", in SW 1/4 NE 1/4 sec.16, T.19 S., R.ll E., Deschutes County, Hydrologic Unit 17070301, Deschutes National Forest, on right bank 0.5 mi upstream from Benham Falls, 10 mi southwest of Bend, and at mile 181.4.


PERIOD OF RECORD. April 1906 to September 1913, April to September 1914, August to December 1920, April to September 1921, February 1924 to 1987. Monthly discharge only for some periods, published in WSP 1318. Published as "at West's ranch, near Lava" April 1906 to February 1909, April to September 1914. Records for January 1905 to March 1906 and October 1913 to September 1914, published under present name in WSP 370 and 394, have been found to be unreliable and should not be used.

REVISED RECORDS. See PERIOD OF RECORD.

GAGE. Water-stage recorder. Datum of gage is 4,142.10 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench mark). See WSP 1738 for history of changes prior to Nov. 20, 1958.

REMARKS. Flow regulated by Crane Prairie Reservoir, Crescent Lake, and Wickiup Reservoir. Many diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 70 years (water years 1907-13, 1925-87), 1,418 ftVs, 1,027,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,000 ft 3 /s, estimated, Nov. 27, 1909 (gage height not determined); minimum discharge, 363 ft 3 /s Jan. 20, 1962.





1 37

14306090

120183


n

17 1717171717171717

250%

897 908917929941959972983

1030

520%

767 796812829842855866873903

1010%

699746767787802813823828849

205%

645708734756774784793797808

50 1002% 1%



1 37

15306090



n

18 181818181818

250%

1550 154015301510149014401400

520%

1740 172017101680165016001560

1010%

1830 181017901760173016701630

254%

1920 190018701830180017401710

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


122


14064500 DESCHUTES RIVER AT BENHAM FALLS, NEAR BEND, OR Continued





1 37

14306090

120183


n

43 4343434343434343

250%

603 622636649673709748788908

520%

503 519529538556584607632731

1010%

461 476484491507533550568655

205%

430 445452458473497509522601

502%

400 414420426438463469477546

1001%

382 396401406418443446450513



1 37

15306090



n

44 444444444444

250%

2630 262025902540249024002340

520%

2870 284028002770272026502570

1010%

2970 293028702850282027502670

254%

3050 299029302920290028302750

502%

3090 303029502950294028802790

1001%

3120 305029702980297029202820



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n - Weighted skew =

historical n »

123

DESCHHTES RIVER BASIN

14066000 DESCHHTES RIVER BELOW LAVA ISLAND, NEAR BEND, OR

LOCATION. Lat 44°00'00", long 121°22'30", in SW 1/4 sec.23, T.18 S., R.ll E., Deschutes County, Hydrologic Unit 17070301, on right bank 0.8 mi downstream from Lava Island, 1.5 mi downstream from intake of Arnold Canal, 5 mi southwest of Bend, and at mile 173.0.



GAGE. Water-stage recorder. Elevation of gage is 3,825 ft (by barometer). Prior to May 4, 1927, at site 0.2 mi upstream at different datum. May 4, 1927, to Nov. 11, 1947 and Nov. 12, 1947, to Oct. 24, 1959, at present site at datums 2.00 and 1.00 ft higher, respectively.

REMARKS. Flow regulated by Crescent Lake and Crane Prairie Reservoir and, since 1942, by Wickiup Reservoir. Small diversions for irrigation upstream from station. Arnold Canal diverts upstream from station for irrigation near Bend.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,360 ft 3/s Dec. 26, 1964, gage height, 5.14 ft; minimum, 390 ft 3/s

Jan. 20, 1962.





1 37

14306090

120183


n

14 1414141414141414

250%

784 797815828842856873888923

520%

716 729748760774785796806828

1010%

689704723735749760767773787

205%

671 688706718733743748751756

50 1002% 1%

__

__



1 37

15306090



n

14 141414141414

250%

1410 140013801370134013001260

520%

1570 155015301510149014301390

1010%

1640 161016001570155014901450

254%

1710 167016501620160015401500

502%

__

1001%

_ --



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1240 1410 1590 1690 1800

Systematic n = 15 historical n * 0 Weighted skew - -0.198

124


14066000 DESCHUTES RIVER BELOW LAVA ISLAND, NEAR BEND, OR Continued





1 37

14306090

120183


n

22 2222222222222222

250%

591 604621636662695729764885

520%

504 518530538555579600621721

1010%

465 480490496511531545559650

205%

436 452460465479496504513597

502%

406 423429434448462463467544

1001%



1 37

15306090



n

23 232323232323

250%

2430 242023802340228022102140

520%

2760 274026602620259025202450

1010%

2910 288027602740271026502580

254%

3040 300028502830282027602690

502%

3120 307028902870287028102750

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

125


14070500 DESCHUTES RIVER BELOW BEND, OR

LOCATION. Lat 44e04'59", long 121°18'24", in SE 1/4 SE 1/4 sec.20, T.17 S., R.12 E., Deschutes County, Hydrologic Unit 17070301, on right bank 0.4 mi downstream from North Canal, at city limits of town of Bend, and at mile 164.4.



REVISED RECORDS. WSP 1318: 1916-18 (M) , 1926(M), 193KM).

GAGE. Water-stage recorder. Datum of gage is 3,503.96 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1931, water-stage recorder at site 200 ft downstream at datum 1.00 ft higher.

REMARKS. Flow regulated by powerplant at Bend, Crescent Lake, Crane Prairie Reservoir, and Wickiup Reservoir. Six large canals and several small ditches divert water upstream from station for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,820 ft 3/s Dec. 27, 1964, gage height, 4.90 ft; maximum gage height, 5.38 ft Dec. 15, 1932 (backwater from ice); minimum discharge, 1.0 ft 3 /s Aug. 25, 1930.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum discharge near this site since 1905, 4,820 ft3 /s Nov. 27, 1909.





1 37

14306090

120183


n

30 3030303030303030

250%

23 2528303237404253

520%

17 1820222326272833

1010%

141618192022232427

205%

13 1416171820202123

502%

11 1214161617181820

1001%

101113151616171718



1 37

15306090



n

31 313131313131

250%

1190 115011001020909821772

520%

1620 157015001400128011701080

1010%

1920 186017701660154014101300

254%

2300 222021101980189017401600

502%

2590 250023702220216020001830

1001%

2890 278026202460243022802070



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n ~ -- historical n Weighted skew -

126


14073001 TUMALO CREEK NEAR BEND, OR

LOCATION.~Lat 44°05'16", long 121°22'18", in NW 1/4 SE 1/4 sec.23, T.17S. R.ll E., Deschutes County, Hydrologlc Unit 17070301, on left bank 0.25 mi upstream from diversion to Tumalo feed canal, 3.0 mi northwest of Bend, and at mile 3.1.


PERIOD OF RECORD. October 1913 to December 1921, February, April to November 1922, March 1923 to September 1987 (discontinued). Published as 'below Bend* 1949-50.

REVISED RECORDS. WSP 864: 1937. WSP 1218: Drainage area. WSP 1448: 1923(M), 1927-29(M), 1935(M), 1942(M). TOR OR-75-1: 1974(M).

GAGE. Water-stage recorder. Datum of gage is 3,566.82 ft above National Geodetic Vertical Datum of 1929. Prior to Apr. 27, 1915, nonrecording gage and Apr. 27, 1915, to Sept. 30, 1918, water-stage recorder or nonrecording gage at same site and datum.

REMARKS. All records given herein include flow in Columbia Southern Canal, which diverts 8 mi upstream from station for irrigation of land near Tumalo. Crater Creek. Canal diverts flow of tributaries of Soda Creek, into head of Tumalo Creek. Diversion upstream from station for municipal supply of Bend since Dec. 15, 1926.

AVERAGE DISCHARGE. 69 years (water years 1914, 1917-21, 1924-35, 1937-87), 102 ft 3 /s, 73,900 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,140 ftVs Nov. 9, 1968 (no flow in canal), from rating curve extended above 780 ft 3/s on basis of slope-area measurement at 3.45 ft; minimum daily, 25 ft 3 /s Jan. 3, 1924.





1 37

14306090

120183


n

63 6363636363636363

250%

444750525558606267

520%

35 3841444749515358

1010%

30 3437414346485054

205%

27 3133384043454751

502%

232730353740424448

1001%

21 2527333538404347



1 37

15306090

DISCHARGE, IN FT J /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

64 646464646464

250%

393 358316279251214183

520%

503 456401353313267227

1010%

570 516452397348296251

254%

650 585512449386328277

502%

707 634554484412349294

1001%

761 680594518435368310


DISCHARGE, IN FT 3 /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

127


14075000 SQUAW CREEK NEAR SISTERS, OR

LOCATION.~Lat 44°14'02», long 121°33'57», in SE 1/4 SW 1/4 sec.29, T.15 S., R.10 E., Deschutes County, Hydrologic Unit 17070301, on right bank 800 ft upstream from intake of McAllister ditch, 4 mi south of Sisters, and at mile 26.8.

DRAINAGE AREA. 45.2 mi 2 , not including 12.6 mi 2 of Pole Creek. See REMARKS.

PERIOD OF RECORD. July 1906 to October 1918, June to August 1919, October 1919 to September 1920, May 1921 to September 1924 (no winter records), April 1925 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS.--WDR OR-83-1: Drainage area.

GAGE. Water-stage recorder. Elevation of gage is 3,490 ft, by barometer. July 1, 1906, to May 29, 1913,nonrecording gage at site 1,000 ft downstream at different datum, below intake of McAllister ditch (records include flow in McAllister ditch). May 30, 1913, to Sept. 2, 1915, nonrecording gage and Mar. 24, 1916, to Oct. 5, 1928, water-stage recorder at site 300 ft downstream at different datum. Oct. 6, 1928, to Nov. 7, 1967, water-stage recorder at site 200 ft downstream at datum 2.64 ft lower.

REMARKS. No regulation. A canal near mouth of Pole Creek has diverted the entire flow of that creek since 1885. Prior to Oct. 1, 1982, drainage area of 57.8 mi included that of Pole Creek. Water is diverted from Snow Creek, a tributary upstream from station, for irrigation in Three Creek basin.

AVERAGE DISCHARGE. 75 years (water years 1907-18, 1920, 1926-87), 105 ft 3 /s, 76,070 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge since 1909, 2,000 ft 3 /s Dec. 25, 1980, from rating curveextended above 690 ft 3/s on basis of slope-area measurement of peak flow; a maximum gage height of 9.2 ft from water-borne ice was observed on Jan. 11, 1979, and probably occurred on Jan. 10, 1979; previous maximum gage height, about 8.75 ft, over top of gage Nov. 22, 1909, site and datum then in use (discharge not determined); minimum discharge, 14 ft 3 /s Mar. 2, 1966.





1 37

14306090

120183


n

727272727272727272

250%

394041434751556066

520%

323334363842454853

1010%

293031333537404348

205%

26 2829303234373944

502%

242526272931333540

1001%

222325252728313338



1 37

15306090



n

75 757575757575

250%

393 346301268243214191

520%

578 480396343305266235

1010%

722 578457385339296259

254%

931714531433377328285

502%

1110 824586465402350302

1001%

1300 942639494425369317



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

345 1460 1790


128

DESCH0TES RIVER BASIN

14076500 DESCH0TES RIVER NEAR CULVER, OR

LOCATION. Lat 44°29'56", long 121°19'12", in NW 1/4 SE 1/4 sec.29, T.12 S., R.12 E., Jefferson County, Hydrologic Unit 17070301, on right bank 2.5 mi downstream from Squaw Creek, 6.0 mi southwest of Culver, and at mile 120.6.


PERIOD OF RECORD. July 1952 to 1987.

GAGE. Water-stage recorder. Elevation of gage is 1,980 ft above National Geodetic Vertical Datum of 1929 (river-profile survey). July 14, 1952, to Sept. 30, 1961, at site 4.1 mi downstream at different datum.

REMARKS. Flow regulated by Crescent Lake and Crane Prairie and Wickiup Reservoirs. Many diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,680 ftVs Dec. 24, 1964, gage height, 10.00 ft, from rating curve extended above 2,200 ft 3 /s on basis of slope-area measurement of peak flow; minimum discharge, 418 ft 3 /s

July 7, 8, 1964.





1 37

14306090

120183


n

34 3434343434343434

250%

486 488492497506515529543564

520%

460 462465469473477482489501

1010%

44S 449452455457460462465474

205%

438 439441444445448448448455

502%

427 42S429432432433433435437

1001%

420 421422423424425425426426



1 37

15306090



n

35 353535353535

250%

2030 192018401750161015001430

520%

2540 241022902140197018301740

1010%

2900 274026002380219020401930

254%

3360 318030002660245022902160

502%

3720 351033002870264024702330

1001%

4090 385036103060281026502490



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


historical n

129


14077500 NORTH FORK BEAVER CREEK NEAR PAULINA, OR

LOCATION.~Lat 44°10'00", long 119°44'00", in SW 1/4 sec.21, T.16 S., R.25 E., Crook County, Hydrologic Unit 17070303 on left bank 2 mi upstream from confluence with South Fork and 12 mi east of Paulina.


PERIOD OF RECORD. January 1942 to September 1954. Prior to October 1945 monthly discharge only, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 3,848.83 ft above National Geodetic Vertical Datum of 1929 (survey by Bureau of Reclamation).

REMARKS. Several small reservoirs upstream from station store water for irrigation and stock watering. Most of summer flow is diverted for irrigation 1,000 acres upstream from station.

AVERAGE DISCHARGE. 12 years (1942-54), 27.2 ft 3 /s, (19,690 acre-ft/yr).

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 955 ftVs Mar. 25, 1952, gage height, 5.85 ft, from rating curve extended above 330 ft 3 /s; no flow July 30 to Aug. 7, Aug. 19, 20, 1951.





1 37

14306090

120183


n

11 1111111111111111

0 00000000

250%

.1

.1

.2

.2

.2

.2

.3

.3

.8

520%

0.1 0.10.10.10.10.20.20.20.5

1010%

0.1 0.10.10.10.10.10.20.20.4

20 50 1005% 2% 1%

:: :: :: MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

12 121212121212

250%

421 2902031461189786

520%

586 434312225179140114

1010%

681 529384283219163126

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

474 780

Systematic n - 13 historical n Generalized 17b skew = -0.001

130


14078000 BEAVER CREEK NEAR PAULINA, OR

LOCATION.~Lat 44°09'50-, long 119°55'20-, in NE 1/4 sec.26, T.16 S., R.23 E., Crook County, Hydrologic Unit 17070303, on right bank 0.7 mi downstream from Paulina Creek, 1.7 mi downstream from Wolf Creek, 2.7 mi northeast of Paulina, and at mile 10.0.


PERIOD OF RECORD. October 1942 to September 1975. Prior to October 1945 monthly discharge only, published in WSP 1318.

GAGE. Water-stage recorder. Elevation of gage is 3,690 ft (by barometer). Oct. 1, 1942, to July 7, 1965 at datum 1.00 ft higher.

REMARKS. No regulation. Diversions for irrigation upstream from station. Two small ditches divert upstream from station for irrigation below.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 12,800 ft 3 /s Dec. 22, 1964, gage height, 14.20 ft, from floodmark, present datum, from rating curve extended above 1,600 ft 3 /s, on basis of slope-area measurement of peak flow; no flow Oct. 13-29, 1945.


[n » number of values used to compute statistics]



1 37

14306090

120183

n

30 3030303030303030


250%

0.4 0.40.50.50.61.01.42.04.9

520%

0, 0,0,0,0,0,0,1,2.

.2

.2

.3

.3

.4

.6

.8

.1

.7

1010%

0. 0.0.0.0,0.0.0.2.

.2

.2

.2

.2,3.4.6.8.0

205%

0.1 0.10.10.20.20.30.50.71.5

50

0. 0.0.0.0.0.0.0.1.

2%

.0

.0

.0

.0

.2

.3

.4

.5

.1

100

0. 0.0.0.0.0.0.0.0.

1%.0 .0.0.0.2.3.3.4.8



1 37

15306090



n

33 333333333333

250%

1140 901682505389290247

520%

2040 16401210867645471394

1010%

2740 221015901120812588485

254%

3720 3020209014401020729588

502%

4510 3680248016801160826656

1001%

5340 4380287019201290919719



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

730 1370 2750 4060 6270 8390 11000


33 historical 0.333

131


14078500 NORTH FORK CROOKED RIVER ABOVE DEEP CREEK, OR

LOCATION.~Lat 44°19'55", long 120°04'55", in NE 1/4 sec.28, T.14 S., R.22 E., Crook County, Hydrologic Unit 17070304, on left bank. 0.8 mi upstream from Deep Creek, 15 mi northwest of Paulina, and 38 mi east of Prineville.


PERIOD OF RECORD. November 1941 to December 1942, October 1943 to September 1954. Prior to October 1945 monthly discharge only, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 4,356.00 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation). Prior to Oct. 1, 1946, at datum 0.33 ft higher.

REMARKS. No regulation. Several diversions for irrigation of about 3,600 acres upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,060 ft 3 /s Apr. 7, 1943, gage height, 4.17 ft, from rating curve extended above 950 ft 3/s; maximum gage height, 8.01 ft, last used datum, Jan. 1, 1943 (ice jam); minimum discharge, 0.5 ft 3 /s Aug. 14, 15, 1942, Aug. 3 to Sept. 24, 1951.





1 37

14306090

120183


n

10 1010101010101010

111111127

250%

.0

.0

.1

.2

.3

.5

.7

.3

.2

0 00000113

520%

.7

.7

.7

.7

.8

.9

.1

.5

.8

0 00000012

1010%

.6

.6

.6

.6

.6

.7

.9

.2

.7

20 50 1005% 2% 1%

:: :: :: . MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

11 111111111111

250%

941 826704567460376300

520%

1360 12101030848679539422

10 2510% 4%

1570 142012201020819634490

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


132


14079500 CROOKED RIVER NEAR POST, OR

LOCATION.~Lat 44°07'00", long 120°15'00", in NE 1/4 sec.7, T.17 S., R.21 E., Crook County, Hydrologic Unit 17070304, on left bank 0.3 mi downstream from North Fork, 12 mi southeast of Post, and at mile 113.7.

DRAINAGE AREA. 2,160 mi2 , approximately, of which 500 mi2 is probably noncontributing.

PERIOD OF RECORD. November 1908 to May 1911, December 1939 to September 1960, July 1968 to July 1973. Records for June to August 1911, published in WSP 312, have been found unreliable and should not be used.

GAGE. Water-stage recorder. Datum of gage is 3,476.25 ft above National Geodetic Vertical Datum of 1929.Nov. 9, 1908, to Aug. 31, 1911, nonrecording gage at site 0.2 mi downstream at different datum. Dec. 30, 1939, to Sept. 30, 1960, water-stage recorder at site .7 mi downstream at different datum.


AVERAGE DISCHARGE. 24 years (water years 1941-60, 1969-72), 337 ft 3/s, 244,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 11,500 ftVs Jan. 18, 1971, gage height, 9.61 ft, from rating curve extended above 4,800 ft /s, on basis of slope-area measurement of peak flow; minimum, 2.7 ft /s Aug. 7, 1970.





1 37

14306090

120183

n

24 2424242424242424


250%

8.7 9.19.8101114172344

520%

5.9 6.26.87.38.110131733

1010%

4.7 5.05.56.06.88.7111529

205%

3.8 4.14.65.15.87.8101326

502%

3.0 3.33.74.24.97.09.21124

1001%




1 37

15306090



n

25 252525252525

250%

3170 27302260183014501130943

520%

5270 434034002700209015701290

1010%

6790 542041203230248018101480

254%

8810 676049503830291020701660

502%

10400 775055304230320022201770

1001%

12000 870060704600347023601870



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2410 6560 8450 11000 13100 15200

Systematic n » 25 historical n Weighted skew = -0.086

133


14080500 CROOKED RIVER NEAR PRINEVILLE, OR

LOCATION. Lat 44°06'50", long 120°4T40", in SW 1/4 NE 1/4 sec.10, T.17 S., R.16 E., Crook County, Hydrologic Unit 17070304, on right bank 0.4 mi downstream from Prineville Dam, 13.6 mi south of Prineville, and at mile 72.1.

DRAINAGE AREA. 2,700 mi , approximately, of which 500 mi 2 is probably noncontributing.

PERIOD OF RECORD. November 1908 to September 1914, March 1941 to 1987. Published as "near Prineville* 1908-12, as "at Hoffman's ranch, near Prineville" 1913-14, and as "above Hoffman Dam, near Prineville" March 1941 to September 1960. The estimate of monthly mean discharge for October 1908, published in WSP 370, has been found to be unreliable and should not be used.

REVISED RECORDS. WSP 1448: 1909-13, 1914(M), drainage area (at sites prior to Apr. 24, 1961). See also PERIOD OF RECORD.

GAGE. Water-stage recorder. Datum of gage is 3,070.85 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation). Prior to September 1914, nonrecording gage at several sites from 9 mi to 23 mi downstream at various datums. Mar. 26, 1941, to Apr. 23, 1961, water-stage recorder at site 5.5 mi downstream at different datum.

REMARKS. Flow completely regulated since December 1960 by Prineville Reservoir (station 14080400). Diversionsfor irrigation upstream from station. Discharge not adjusted for storage or release from Prineville Reservoiras evaporation from reservoir at times exceeds natural flow.

AVERAGE DISCHARGE. 24 years (water years 1910-14, 1942-60), 378 ft 3 /s, 273,900 acre-ft/yr; 27 years (water years 1961-87), 374 ftVs, 271,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD . Maximum discharge, 8,410 ftVs Mar. 26, 1952, gage height, 8.2 ft, from floodmark, site and datum then in use; no flow Aug. 13-21, 1959, Jan. 3-5, 1961.





1 37

14306090

120183


n

17 1717171717171717

250%

4.2 4.54.95.56.910152349

520%

1.92.12.53.03.75.49.11636

1010%

1.21.51.82.22.73.87.01331

205%

0.81.11.41.72.12.85.61128

50 1002% 1%

. - --



1 37

15306090



n

18 181818181818

250%

3360 291024602000160013101100

520%

5140 443036803100246019101590

1010%

6190 531043803790299022401850

254%

7350 628051504590361025702110

502%

:: --

1001%

--



1.25 80%

2330

Systematic n

250%

3640

- 18

5 20%

5670

historical

10 10%

7160

n - 0

25 4%

9170

50 2%

1001%

134


14080500 CROOKED RIVER NEAR PRINEVILLE, OR Continued


In - number of values used to compute atatiatica]



1 37

14306090

120183


n

26 2626262626262626

250%

21 2325315075

103121153

520%

12 13141625406076

111

1010%

8.89.19.8121729455895

205%

7.0 7.17.58.71222354684

502%

5.3 5.55.56.28.516253573

1001%

4.4 4.54.84.96.613212967



1 37

15306090



n

27 272727272727

250%

2020 1950177015001160858729

520%

3200 311029102520201015201270

1010%

3650 357034003010247019201620

254%

3970 389037803420291023702020

502%

4090 402039603620315026602290

1001%

4160 410040703760334029202540



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n - Weighted skew -

historical n

135


14087400 CROOKED RIVER BELOW OPAL SPRINGS, NEAR CULVER, OR

LOCATION.~Lat 44029'33", long 121017'50", in NW 1/4 NE 1/4 sec.33, T.12 S., R.12 E., Jefferson County, Hydrologic Unit 17070305, on right bank 0.2 mi downstream from Opal Springs, 4.8 mi southwest of Culver, and at mile 6.7.

DRAINAGE AREA. 4,300 mi2 , approximately, of which 500 mi2 is probably noncontributing.


GAGE. Water-stage recorder. Datum of gage is 1,953.60 ft above National Geodetic Vertical Datum of 1929 (Portland General Electric Co. bench mark).

REMARKS. Flow regulated since December 1960 by Prineville Reservoir (station 14080400) and Ochoco Reservoir,capacity, 47,500 acre-ft. Dam and powerplant 500 ft upstream, completed in 1985, causes brief fluctuations in flow. Many diversions for irrigation upstream from station. Practically all of the summer flow comes from Opal Springs and other springs within 15 mi upstream from station. Simultaneous records (1961-63) at former gaging station 5.6 mi downstream indicated over 15 percent increase to summer flow from springs downstream from this station.

AVERAGE DISCHARGE. 26 years, 1,609 ftVs, 1,166,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,660 ft 3 /s Dec. 24, 1964, gage height, 9.36 ft; minimum daily discharge, 1,090 ft 3/s May 11, 1981.





1 37

14306090

120183


n

25 2525252525252525

250%

1180 11801190120012301250127012901330

520%

1130 11401140116011701190120012201260

1010%

1110 1120112011301150116011.7011901230

205%

1100 11001110112011301140114011701210

502%

1080 10801090110011101110111011401190

1001%

1070 10701080108010901090110011301180



1 37

15306090



n

26 262626262626

250%

3590 351033403040267022502090

520%

4740 465044604050353029902710

1010%

5380 528050904640409035003140

254%

6050 596058005330477041803700

502%

6490 640062705810526047104130

1001%

6870 678066906260575052604570



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

136


14087500 CROOKED RIVER NEAR CULVER, OR

LOCATION. Lat 44°33'40", long 121°16'10", in sec.3 (50 ft west of 1/4-corner on line between sec.2 and 3), T.12 S., R.12 E., Jefferson County, Hydrologic Unit 17070305, on right bank 1 mi upstream from mouth, 1.2 mi downstream from Cove powerplant, and 4 mi northwest of Culver.

DRAINAGE AREA. 4,330 mi2 , approximately, of which 500 mi is probably noncontributing.


GAGE. Water-stage recorder. Datum of gage is 1,664.86 ft above National Geodetic Vertical Datum of 1929. Prior to Aug. 2, 1945, staff gage at several sites within 1.2 mi of present site at various datums.

REMARKS. Flow slightly regulated (since 1919) by Ochoco Reservoir (capacity, 47,500 acre-ft) and since Dec. 13, 1960, by Prineville Reservoir (capacity, 152,800 acre-ft); occasional diurnal fluctuation caused by powerplant 1.2 mi upstream from station. Water is diverted for irrigation of land upstream from station. The area served increased from about 30,000 acres in 1918 to 37,000 acres in 1946. Several hundred cubic feet per second of water diverted from Deschutes River for irrigation of other lands upstream from station. Opal Springs and several other springs within about 17 mi upstream from station contribute about 1,000 ft /s to flow.

AVERAGE DISCHARGE. 46 years, 1,553 ft3/s, 1,124,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge observed, 8,260 ftVs Mar. 30, 31, 1943, gage height, 6.70 ft, site and datum then in use; minimum recorded, 920 ft 3 /s Oct. 14, 1945.





1 37

14306090

120183


n

15 1515151515151515

250%

1310 13101310132013301350-136013801400

520%

1270 12701270128012901310132013301360

1010%

1240 12401250125012701280129013101340

205%

1220 12201230123012401260127012801320

50 1002% 1%




1 37

15306090



n

41 414141414141

250%

4340 397035103080269023602160

520%

5980 549047504110350029802690

1010%

7000 645055304780403033703020

254%

8210 761064605600469038403420

502%

9060 845071206200518041803710

1001%

9860 926077706790567045104000



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3170 4510 6280 10700



137


14088000 LAKE CREEK NEAR SISTERS, OR

LOCATION. Lat 44°25'35", long 121P 43'30", in NE 1/4 SW 1/4 sec.24, T.13 S., R.8 E., Deschutes County, Hydrologic Unit 17070301, on left bank 300 ft downstream from Suttle Lake and 13 mi northwest of Sisters.


PERIOD OF RECORD. June to November 1911, March to September 1912, May to October 1913, April 1915 to current year. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS.--WSP 1124: 1974(M), 1978(M).

1943, 1947. WSP 1218: Drainage area. WSP 1448: 1916(M), 1925. HDR OR-81-1:

PriorGAGE. Water-stage recorder. Datum of gage is 3,431.68 ft above National Geodetic Vertical Datum of 1929. to Apr. 1, 1916, nonrecording gage at two sites 400 ft upstream at different datums. Apr. 1, 1916, to Oct. 12, 1928, nonrecording gage or water-stage recorder at site 640 ft downstream at different datum. Oct. 13, 1928, to Aug. 13, 1967, water-stage recorder at site 600 ft downstream at datum 1.61 ft lower.

REMARKS. Flow occasionally regulated by Suttle Lake 150 ft upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum recorded discharge, 446 ft 3/s Dec. 15, 1977, gage height, 4.78 ft, but may have been higher during period of no gage-height record Dec. 23, 1964; minimum discharge, 1.0 ft 3/s Nov. 4, 5, 1940; minimum daily, 8 ftVs Nov. 5, 1940, Oct. 6, 1942.


[n number of values used to compute statistics]



1 37

14306090

120183


n

68 6868686868686868

250%

27 2728293031313236

520%

20 2224252526272830

1010%

16 1921222324252528

205%

13 1618202122232426

502%

9.81316181920212224

1001%

7.91114161819202023



1 37

15306090



n

68 686868686868

250%

150 1451351201048979

520%

231 22019416013310895

1010%

290 274232183149118102

254%

373 348281211167128109

502%

439406317229179134113

1001%

510 468352246190139117



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

116 165

Systematic n Weighted skew


138

DBSCHUTBS RIVER BASIN

14091500 METOLIUS RIVER NEAR GRANDVIEH, OR

LOCATION.~Lat 44°37'33", long 121°28'55", in SE 1/4 SV 1/4 sec.12, T.ll S., R.10 E., Jefferson County, Hydrologic Unit 17070301, Deachutea National Forest, on right bank 1.0 mi upstream from maximum controlled pool of Lake Billy Chinook, 15.0 mi northwest of Culver, and at mile 13.6.

DRAINAGE AREA. 316 mi , at cableway 1.0 mi downstream, where all discharge measurements are made. Hydrologic drainage boundary uncertain because of interbaain ground-water exchange.

PERIOD OF RECORD. April 1910 to February 1912 (gage heights and discharge measurements only), March 1912 to December 1913, October 1921 to 1987. Published as "at Hubbard's ranch, near Sisters" 1910, and as "at Hubbard's ranch, near Grandview* 1910-13.

REVISED RECORDS. HSP 1448: 1913.

GAGE. Water-stag* recorder. Datum of gage is 1,974.36 ft above National Geodetic Vertical Datum of 1929 (levels by Portland General Electric Co.). Prior to Dec. 31, 1913, nonrecording gage at site 2.3 mi upstream at different datum. Oct. 1, 1921, to May 3, 1949, nonrecording gage and May 4, 1949, to June 18, 1963, water-stage recorder at site 2.7 mi downstream at datum 64 ft lower.

REMARKS. No regulation. Many small diversions for irrigation upstream from station. Stream is spring fed. Records herein are for measuring site.

AVERAGE DISCHARGE. 67 years (water years 1913, 1922-87), 1,497 ft'/s, 1,085,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,530 ftVs Dec. 24, 1964, gage height, 6.81 ft; minimum discharge, 1,080 ft 3/s Feb. 17, 1932, Oct. 2-31, Nov. 6, 7, 10-14, 1942.





1 37

14306090

120183



n

66 6666666666666666

250%

1280 12901290130013101330134013501380

520%

1190 12001200121012201230124012501270

1010%

1140 11501150116011701180119012001220

205%

1100 11101110112011301140115011601180

502%

1060 10601070107010801090110011101130

1001%

1030 10301040104010501060107010801100



1 37

15306090



n

67 676767676767

250%

2410 222020501910180017201670

520%

3200 291025802290208019301850

1010%

3800 343029702540224020501950

254%

4630 417035002860244021802050

502%

5320 479039203100258022802120

1001%

6060 545043703350271023602180



1.25 80%

250%

520%

10 10%

25 4%

50 2%

1001%

1990 2600 3540 4230 5190 5960 6780

Systematic n « 66 historical n = 0 Weighted skew - 0.493

139


14092500 DESCHUTES RIVER NEAR MADRAS, OR

LOCATION. Lat 44°43'34", long 121014'45", in SE 1/4 SW 1/4 sec.l, T.10 S., R.12 E., Jefferson County, Hydrologic Unit 17070306, on right bank. 400 ft downstream from reregulating dam, 2.7 mi downstream from Pelton Dam, 8.5 mi northwest of Madras, and at mile 100.1.




GAGE. Water-stage recorder. Datum of gage is 1,390.25 ft above National Geodetic Vertical Datum of 1929 (levels by Portland General Electric Co.). See WSP 1738 for history of changes prior to Nov. 23, 1957.

REMARKS. Diurnal fluctuation caused by Lake Simtustus and reregulating reservoir since 1957, combined capacity for normal operation, 6,500 acre-ft. Some winter and spring runoff stored in Ochoco Reservoir, capacity, 47,500 acre-ft, in Crescent Lake, Crane Prairie and Wickiup Reservoirs, combined capacity, 354,600 acre-ft, and since 1960, in Prineville Reservoir, capacity, 152,800 acre-ft, and since 1964, in Lake Billy Chinook, capacity, 534,700 acre-ft. Large diversions in upper basin for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 22,500 ft 3/s July 16, 1983, accidental release from Pelton Dam, gage height, 7.70 ft, from floodmarks; minimum discharge, 916 ft 3/s July 4, 1982, caused by power company testing control gates on dam.





1 37

14306090

120183


n

31 3131313131313131

250%

3400 34103420344034603500354035803730

520%

3190 32003210322032303250328033103420

1010%

3100 31103120312031303140316031903280

205%

3030 30403040305030603060307031003180

502%

2960 29602970297029802980298030003060

1001%

2910 29202920293029302930293029302990



1 37

15306090



n

32 323232323232

250%

7760 742069006340589055405310

520%

9780 931084707710705064806140

1010%

11100 1060095108650784071006690

254%

12800 12200108009870887078807380

502%

14100 134001180010800966084607890

1001%

15400 1470012800118001050090308400



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

140


14092500 DESCHUTES RIVER NEAR MADRAS, OR Continued





1 37

14306090

120183


n

23 2323232323232323

250%

3330 34203530370039003970402040704150

520%

3060 31603270342036203680371037403800

1010%

2930 30303140327034603510353035503610

205%

2840 29303040315033103360337033903460

502%

2730 28302930301031403180319031903280

1001%

_



1 37

15306090



n

24 242424242424

250%

8360 818077907160656060105810

520%

10600 1030096808860802071806800

1010%

12100 117001090010000901079707420

254%

14200 1360012500115001030089708190

502%

15700 1500013700126001120097408740

1001%

_



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

141


14092885 SHITIKE CREEK BELOW WOLFORD CANYON, NEAR WARM SPRINGS, OR

LOCATION. Lat 44°46'20", long 121°18'15«, in NW 1/4 SE 1/4 sec.21, T.9 S., R.12 E., Jefferson County, Hydrologic Unit 17070306, Warm Springs Indian Reservation, on left bank at bridge crossing 2.3 mi upstream from Tenino Creek, and 2.1 mi northwest of Warm Springs.


PERIOD OF RECORD. October 1974 to 1987. Records for June 1911 to October 1916, April 1923 to September 1928, and October 1972 to September 1974 (station 14093000) at sites downstream not equivalent owing to difference in drainage areas.


REMARKS. No regulation. Some diversion for irrigation and Warm Springs water supply.

AVERAGE DISCHARGE. 13 years, 98.1 ft 3 /s, 17.58 In/yr, 71,070 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,980 ft 3 /s Feb. 23, 1986, gage height, 6.40 ft, from rating curve extended above 860 ft 3/s; maximum gage height, 7.35 ft Dec. 13, 1977; minimum daily discharge, 17 ft 3/s

Oct. 12-15, 17-22, 24-27, Nov. 12, 1978.





1 37

14306090

120183

DISCHARGE, IN FT3/s, FOR INDICATED RECURRENCEINTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

n

12 1212121212121212

250%

37 3940414347505362

520%

28 2929303134373947

1010%

23 2424242528313241

20 50 1005% 2% 1%



1 37

15306090

DISCHARGE, IN FT3 /s, FOR INDICATED RECURRENCEINTERVAL, IN YEARS, AND ANNUAL


n

13131313131313

250%

499420334264214177159

520%

869716542397300227200

1010%

1140 935692487350251218

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

320 619 1200 1700

Systematic n » 13 historical n Generalized 17b skew - 0.009

142


14093000 SHITIKE CREEK NEAR WARM SPRINGS, OR

LOCATION.~Lat 44°45'41«, long 121°13'57", in NW 1/4 NW 1/4 sec.30, T.9 S., R.13 E., Jefferson County, Hydrologic Unit 17070306, Warm Springs Indian Reservation, on left bank 1.9 mi east of Warm Springs and at mile 0.3.


PERIOD OF RECORD. October 1911 to September 1916, October 1923 to September 1928, October 1972 to September 1974.

GAGE. Nonrecording gage. Elevation of gage is 1,380 ft, from topographic map.

REMARKS. No regulation. Some water is diverted for mill pond at point 0.3 mi upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum daily discharge, 2,300 ft 3 /s Jan. 15, 1974; minimum daily, 20 ft 3/s Dec. 8-15, 1972.





DISCHARGE, IN FT3 /S, FOR INDICATEDPERIOD(CONSECUTIVEDAYS) n

1 37

14306090

120183

INTERVAL,EXCEEDANCE

2 550% 20%


1010%

::

ANNUALRECURRENCENON-

IN PERCENT

205%

--

502%

::

1001%




1 37

15306090



n

12 121212121212

250%

482 388313237192162152

520%

867 703534367271219197

1010%

1240 1000735480332260229

25 50 1004% 2% 1%

:: :: :: -- -- --MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

308


143


14097100 WARM SPRINGS RIVER NEAR KAHNEETA HOT SPRINGS, OR

LOCATION. Lat 44851'24", long 121808'55", in SE 1/4 SW 1/4 sec.23, T.8 S., R.13 E., Wasco County, Hydrologic Unit 17070306, Warm Springs Indian Reservation, on right bank 25 ft upstream from bridge, 2.5 mi east of Kahneeta Hot Springs, and at mile 4.6.




REMARKS. No regulation. Small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 15 years, 453 ft 3 /s, 11.70 in/yr, 328,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 9,240 ft 3/s Feb. 23, 1986, gage height, 10.54 ft; minimum daily discharge, 160 ft 3/s Jan. 1, 2, 1979.





1 37

14306090

120183


n

14 1414141414141414

250%

237 242244246250255259263283

520%

204 210214218224230235238251

1010%

187 192198203210218223225236

205%

173 178185191200208213215225

50 1002% 1%

_ _ __



1 37

15306090



n

15 151515151515

250%

2560 205015601200961794731

520%

4640 37302790195014501110981

1010%

5970 491036702470177013001120

254%

7510 639048403130216015201270

50 1002% 1%

II II



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1490 5790 8260


144


14097200 WHITE RIVER NEAR GOVERNMENT CAMP, OR

LOCATION. Lat 45°10'40", long 121°34'30", in NE 1/4 SW 1/4 sec.32, T.4 S., R.10 E., Wasco County, Hydrologic Unit 17070306, in Mount Hood National Forest, on left bank at Faith Spring, 1.4 mi upstream from Klip Creek, and at mile 33.3.


PERIOD OF RECORD. July 1969 to October 1979, July 1980 to September 1981.

GAGE. Water-stage recorder. Elevation of gage is 2,740 ft from topographic map.




Jan. 6, 1977.





DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCEPERIOD(CONSECUTIVEDAYS) n

1 " "

7 " " 14306090

120183

250%

INTERVAL,EXCEEDANCE

520%


1010%

ANNUAL NON-IN

205%

PERCENT

502%

1001%



1 37

15306090



n

11 111111111111

250%

1200 915711544428336292

520%

1780 1300911700570438376

1010%

2040 1480987768642491417

254%

:: --

502%

1001%



1.25 2 5 10 25 50 foo 80% 50% 20% 10% 4% 2% 1%

575 1210 2560 3780

Systematic n = 12historical n =0 Generalized 17b skew = 0.005

145


14101500 WHITE RIVER BELOW TYGH VALLEY, OR

LOCATION. Lat 45°14'30", long 121°05'38«, in NE 1/4 NE 1/4 sec.7, T.4 S., R.14 E., Wasco County, Hydrologic Unit 17070306, on left bank 200 ft downstream from former Pacific Power & Light Co. powerplant at White River Falls, 3.9 mi east of town of Tygh Valley, and at mile 2.0.



REVISED RECORDS. WSP 1448: 1920, 1923, 1927-28, drainage area. WSP 1935: 1956.

GAGE. Water-stage recorder. Datum of gage is 870.15 ft above National Geodetic Vertical Datum of 1929 (levels by Pacific Power t Light Co.) . Prior to July 28, 1931, at site 750 ft downstream at different datum. July 28, 1931, to Sept. 30, 1954, at site 700 ft downstream at different datums.

REMARKS. Diversions upstream from station for irrigation, and prior to 1963 for power generation.

AVERAGE DISCHARGE.--70 years, 426 ft 3 /s, 308,600 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 13,300 ft 3/s Jan. 6, 1923, gage height, about 13.3 ft, site and datum then in use, from rating curve extended above 5,000 ft /s; minimum discharge, 7.5 ft 3 /s Aug. 31, 1961,

result of fluctuation caused by regulation.





1 37

14306090

120183


n

69 6969696969696969

250%

107 108110113118124130139180

520%

91 929497

102107111118142

1010%

82 8486899499

103108128

205%

76 777983879296

101117

502%

6970727681858893

107

1001%

64 66677277808489

101



1 37

15306090



n

70 707070707070

250%

2540 2150172013701140948838

520%

4290 352026401950152012201060

1010%

5560 450032402290170013501160

254%

7230 579040002680189014701240

502%

8510 67804550294020001540'1290

1001%

9810 779050903170209015901320



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

1750


146


14103000 DESCHUTES RIVER AT MOODY, NEAR BIGGS, OR

LOCATION. Lat 45C37'20", long 120°54'05", in SW 1/4 SE 1/4 sec.26, T.2 N., R.15 E., Sherman County, Hydrologic Unit 17070306, on right bank at Moody, 4.0 mi southwest of Biggs, and at mile 1.4.


PERIOD OF RECORD. October 1897 to December 1899 (published as "near Moro"), July 1906 to 1987. Monthly discharge only for some periods, published in WSP 1318.


GAGE. Hater-stage recorder. Datum of gage is 167.54 ft above National Geodetic Vertical Datum of 1929.Oct. 19, 1897, to Dec. 31, 1899, nonrecording gage at site 10 mi upstream at different datum. July 22, 1906, to July 18, 1930, nonrecording gage at site 300 ft downstream at datum 0.50 ft lower.

REMARKS. Some fluctuation caused by regulation at Lake Simtustus since 1957. Some winter and spring runoff stored in Ochoco Reservoir since 1919, capacity, 46,420 acre-ft, in Crescent Lake, Crane Prairie since 1922, and Wickiup Reservoirs since 1944, combined capacity, 323,390 acre-ft, and since 1960, in Prineville Reservoir (station 14080400), and since 1964 in Lake Billy Chinook (station 14092100). Large diversions in upper river basin for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 75,500 ft 3/s Dec. 22, 1964, gage height, 11.80 ft, from rating curve extended above 47,000 ft'/s; minimum discharge, 2,400 ft'/s Dec. 5, 1957.


[n > number of values used to compute statistics]



1 37

14306090

120183


n

13 1313131313131313

250%

4670 46704740485049304980504051105300

520%

4160 41604240433044204490454046104800

1010%

3900 39003980405041204200425043104510

20 50 1005% 2% 1%



1 37

15306090



n

15 151515151515

250%

15600 1410012400111001000092708710

520%

21100 188001590013500118001070010200

1010%

25200 225001860015200131001160011000

254%

30800 276002240017600147001260012100

50 1002% 1%

_ _



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

12100 16200 21800 25500 30100


147


14103000 DESCHUTES RIVER AT MOODY, NEAR BIGGS, OR~Continued





1 37

14306090

120183


n

22 2222222222222222

250%

3900 39704080419043304410448045704790

520%

3620 36903800396040904150419042604420

1010%

3490 35503660385039704030406041104250

205%

3380 34403550377038803930395040004120

502%

3260 33303430368037903830383038803980

1001%

--



1 37

15306090



n

23 232323232323

250%

13600 124001130010300925083107920

520%

21600 19100165001410012000104009640

1010%

29300 253002100016900139001180010700

254%

42300 354002790021000165001360012100

502%

55200 451003420024400185001510013100

1001%

__ ~



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n - Weighted skew = --

historical n

148

HOSIER CREEK BASIN

14113200 HOSIER CREEK NEAR HOSIER, OR

LOCATION. Lat 45°38'55', long 121°22'35", in NW 1/4 NW 1/4 sec.19, T.2 N., R.12 E., Wasco County, Hydrologic Unit 17070105, on left bank 0.1 mi downstream from West Fork Hosier Creek, 2.5 mi southeast of Hosier, and at mile 3.0.



GAGE. Water-stage recorder. Elevation of gage is 425 ft, from topographic map. Prior to July 22, 1976, water-stage recorder at site 20 ft upstream at datum 3.57 ft higher. July 22, 1976, to Dec. 12, 1977, water-stage recorder at site 20 ft upstream at datum 1.57 ft higher.

REMARKS. No regulation. Several small pumping diversions for irrigation upstream from station.


EXTREHES FOR PERIOD OF RECORD. Haximum discharge, 4,790 ft 3/s Dec. 23, 1964, gage height, 8.9 ft, from flood profile, from rating curve extended above 1,000 ft 3/a on basis of slope-area measurement of peak flow; minimum, 0.35 ft 3/s

July 25, 26, Aug. 6, 7, 1978.



HAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW BASED ON PERIOD OF RECORD 1965-1981


1 37

14306090

120183


n

17 1717171717171717

250%

1.1 1.11.21.21.31.51.71.92.8

0 00001112

520%

.7

.8

.8

.9

.9

.2

.4

.7

.4

1010%

0.6 0.60.60.70.81.11.31.52.1

205%

0.5 0.50.50.60.71.01.21.42.0

502%

1001%

_ _ -



1 37

15306090



n

18 181818181818

250%

602 46233322815611393

520%

1150 802521336206157131

1010%

1380 923573363215168140

254%

1540 999599376218173145

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

292 689 1630 2550 4120

Systematic n = 18 historical n Generalized 17b skew - 0.001

149

HOOD RIVER BASIN

14113400 DOG RIVER NEAR PARKDALE, OR

LOCATION.~Lat 45°24'30", long 121°31'10", in SW 1/4 sec.11, T.2 S., R.10 E., Hood River County, Hydrologic Unit 17070105, Mount Hood National Forest, on right bank 100 ft upstream from city of The Dalles municipal diversion to Mill Creek basin, and 8.8 mi south of Parkdale.



GAGE. Water-stage recorder and concrete control. Datum of gage is 4,347 ft above National Geodetic Vertical Datum of 1929 (levels by city of The Dalles).


AVERAGE DISCHARGE. 12 years, 7.09 ft3/s, 21.40 in/yr, 5,140 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 100 ft 3/s May 29, 1969, gage height, 3.92 ft, from rating curve extended above 30 ft /s; minimum, 0.03 ft 3/s Dec. 1, 1967, result of freezeup.





1 37

14306090

120183


n

10 1010101010101010

111122223

250%

.4

.5

.7

.9

.1

.2

.5

.7

.2

0 01112222

520%

.4

.6

.1

.5

.9

.1

.2

.3

.6

0 00112222

1010%

.2

.3

.8

.4

.8

.0

.1

.1

.4

20 50 1005% 2% 1%



1 37

15306090



n

11 111111111111

250%

31 282522191613

520%

46 423732282218

1010%

58 534741362722

25 50 1004% 2% 1%

_ _ _



1.25 80%

250%

520%

10 10%

25 4%

50 2%

100 1%

35 52 64


150

HOOD RIVER RIVER BASIN

14118500 WEST FORK HOOD RIVER NEAR DEE, OR

LOCATION.--Lat 45°35'55-, long 121°38'05-, in SE 1/4 sec.l, T.I N., R.9 E., Hood River County, Hydrologic Unit 17070105, on left bank 0.3 mi upstream from Dead Point Creek, 0.8 mi northwest of Dee, and at mile 0.4.

DRAINAGE AREA. 95. 6 mi2 .

PERIOD OF RECORD. September 1913 to February 1916 (incomplete), June 1932 to 1987.

REVISED RECORDS.--HDR OR-80-1: 1972(M).

GAGE. Hater-stage recorder. Datum of gage is 802.1 ft above National Geodetic Vertical Datum of 1929. Sept. 1, 1913, to Feb. 12, 1916, nonrecording gage at site 0.5 mi upstream at different datum.

REMARKS. No regulation. Dee Irrigation District canal diverts from right bank about 6 mi upstream from station for irrigation upstream from station and in Middle Fork Basin. Diversions from Green Point Creek basin upstream from station for irrigation near Oak Grove; water from two of these diversions is carried in Hood River Irrigation District canal.

AVERAGE DISCHARGE. 56 years (water years 1914, 1933-87), 554 ftVs, 401,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge not determined, Dec. 22, 1964, aage height, 27.0 ft, from floodmarka; maximum daily discharge, 15,000 ft /s Dec. 23, 1964; minimum, 93 ft /s Aug. 22, 1941.


(n » number of values used to compute statistics]



1 37

14306090

120183


n

54 5454545454545454

250%

131 132135139146158170191271

520%

116 117119122127135143157214

1010%

108 109111114118125132143190

205%

103 104105108111117123133173

502%

97 9799

101103108115123157

1001%

93 94959798

103110118147



1 37

15306090



n

55 555555555555

250%

5030 359025301830140011201010

520%

7270 525036102480186014301250

1010%

8640 635043002880213016001370

254%

10200 774051503330243017901500

502%

11300 877057503640263019201580

1001%

12300 980063403930282020401650



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

4770 6790 9770 11900 19100


151

HOOD RIVER RIVER BASIN

14120000 HOOD RIVER AT TUCKER BRIDGE, NEAR HOOD RIVER, OR

LOCATION. Lat 45°39'20 11 , long 121*32'50", in SE 1/4 sec.15, T.2 N., R.10 E., Hood River County, Hydrologic Unit 17070105, on right bank 25 ft downstream from Tucker Bridge, 0.5 mi upstream from Odell Creek, 4.0 mi, southwest of town of Hood River, and at mile 6.1.


PERIOD OF RECORD. October 1897 to December 1899, September 1913 to September 1914, August 1915 to September 1917, January 1965 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS. WSP 1318: 1899. WSP 1935: Drainage area.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 383.2 ft above National Geodetic Vertical Datum of 1929 (Oregon State Highway Department bench mark). Prior to July 23, 1915, nonrecording gage at bridge at various datums. July 23 to Dec. 21, 1915, water-stage recorder at site 0.8 mi upstream at different datum. January 1916 to September 1917, nonrecording gage at bridge at different datum. Jan. 16 to July 23, 1965, nonrecording gage at bridge.

REMARKS. Some daily fluctuation caused by diversion dam upstream from station and sawmill at Dee. Diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 27 years (water years 1898-99, 1914, 1916-17, 1966-87), 1,062 ftVs, 769,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 22,300 ft 3/s Dec. 13, 1977, gage height, 15.59 ft; minimum discharge recorded, 136 ft 3 /s Sept. 16, 1915, caused by temporary storage behind dam at Dee.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Dec. 22, 1964y reached a stage of 20.6 ft, present datum, discharge, 33,200 ft /s, from rating curve extended above 1,500 ft /s on basis of slope-area measurement of peak flow.





1 37

14306090

120183


n

24 2424242424242424

250%

270 275285299316342367407534

520%

222 226238251266290313345442

1010%

202 206219231245269292320404

205%

188 192205217230254277303376

502%

174 178192203216240263287349

1001%




1 37

15306090



n

27 272727272727

250%

8340 615045103300260021501930

520%

12400 910065104560343027302380

1010%

14500 1070075805230385030002580

254%

16500 1230086805920425032702760

502%

17600 1330093506340449034202850

1001%

18500 1410099006700468035402930



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

7100 16800 28500 31800


27 historical n = 90 = -0.300

152

SANDY RIVER BASIN

14131000 LITTLE ZIGZAG RIVER AT TWIN BRIDGES, NEAR RHODODENDRON, OR

LOCATION.~Lat 45°18'50", long 121°48'30", in NW 1/4 sec.15, T.3 S., R.8 E., Clackamas County, Hydrologic Unit 17080001, 0.1 mi upstream from mouth and the upper of Twin Bridges on the Mount Hood Loop Highway and 5.5 mi east of Rhododendron.

DRAINAGE AREA. 3.7 mi 2 , approximately.





EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 250 ft 3/s Mar. 31, 1931, gage height not determined, from area-velocity

study and comparison with discharge of nearby streams; maximum gage height, 3.5 ft Oct. 7, 1930 (probably backwater from debris); minimum, 15 ft /s Feb. 1-13, 16-18, 1932.


tn = number of values used to compute statistics]




1 37

14306090

120183


FT3/S, FORIN YEARS,

INDICATED RECURRENCEAND ANNUAL NON-


2 550% 20%

II II

1010%

205%

__

502%

_

1001%



1 37

15306090



n

10 101010101010

250%

54 453936343230

520%

82614943403634

1010%

107 745748444037

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

50 78 123 156


153

SANDY RIVER BASIN

14134000 SALMON RIVER NEAR GOVERNMENT CAMP, OR

LOCATION.~Lat 45°15'55", long 121°43'00", in SE 1/4 NW 1/4 sec.31, T.3 S., R.9 E., Clackamas County, Hydrologic Unit 17080001, in Mount Hood National Forest, on right bank near lower end of Red Top Meadows and 3.0 mi southeast of Government Camp.


PERIOD OF RECORD. May 1910 to May 1912, April 1926 to 1987. Published as "near Rowe" 1910-12.

REVISED RECORDS. WSP 1398: 1911-12, 1926-27, 1933(M), 1949. WDR OR-77-1: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 3,445.53 ft above National Geodetic Vertical Datum of 1929. Priorto Nov. 21, 1910, nonrecording gage at site 0.2 mi upstream at different datum. Nov. 21, 1910, toMay 31, 1912, and Apr. 21, 1926, to Sept. 30, 1933, at site 75 ft upstream from former site at differentdatums. Oct. 1, 1933, to Sept. 30, 1960, at datum 1.00 ft higher.


AVERAGE DISCHARGE. 62 years (water years 1911, 1927-87), 44.4 ft3 /s, 75.37 in/yr, 32,170 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,300 ft3 /s Dec. 23, 1964, gage height, 4.75 ft, from rating curve extended above 310 ft 3 /s, on basis of slope-area measurement of peak flow; minimum discharge, 10 ft3/s

Nov. 27, 1952.





1 37

14306090

120183


n

61 6161616161616161

250%

17 1818192022232530

520%

15 1515161718192024

1010%

13 1314151516171921

205%

12 1213131415161720

502%

11 1112121314151618

1001%

10 1011111213141517



1 37

15306090



n

62 626262626262

250%

192 146121104938374

520%

295 21316413511710088

1010%

376 26719515413010995

254%

497 348240178145118102

502%

601 419276196155124106

1001%

717 500314214164128109



1.25 80%

250%

520%

10 10%

25 4%

50 2%

100 1%

183 284 456 593 963



154

SANDY RIVER BASIN

14134500 SALMON RIVER BELOW LINNEY CREEK, OR

LOCATION. Lat 45°13'20", long 121°51'40", in SW 1/4 sec.17, T.4 S., R.8 E., Clackamas County, Hydrologic Unit 17080001, 200 ft downstream from Linney Creek, 8 mi southwest of Government Camp, and 9 mi southeast of Welches.



GAGE. Water-stage recorder. Elevation of gage is 2,500 ft, from topographic map. Prior to Oct. 18, 1934, 25 ft downstream at same datum.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,670 ftVs Mar. 31, 1931, gage height, 5.81 ft, site then in use, from rating curve extended above'1,500 ft /s by logarithmic plotting; minimum, 37 ft /s Nov. 2, 1936, gage

height, 0.22 ft.





1 37

14306090

120183


n

22 2222222222222222

250%

52 5253555762667298

520%

47 4748495254576177

1010%

45 464647505254.5769

205%

44 4445464850525464

502%

43 4344

. 454748505258

1001%




1 37

15306090



n

23 232323232323

250%

1100 924767658574481406

520%

1680 13601060842703580486

1010%

2110 16701260937755617517

254%

2710 209015201030797645543

502%

3200 243017201090817658555

1001%


DISCHARGE, IN FT J /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

254%

50 2%

1001%

901 1360 2090 2640 3410 4030


155

SANDY RIVER BASIN

14135500 SALMON RIVER ABOVE BOULDER CREEK, NEAR BRIGHTWOOD, OR

LOCATION. Lat 45°21'40", long 122°00'40", in SW 1/4 SE 1/4 sec.25, T.2 S., R.6 E., Clackamas County, Hydrologic Unit 17080001, on left bank 1.1 mi upstream from Boulder Creek, 1.2 mi south of Brightwood, and 2.0 mi upstream from mouth.



GAGE. Water-stage recorder. Datum of gage is 1,089.2 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers).


AVERAGE DISCHARGE. 16 years (water years 1937-52) 452 ftVs, 327,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 11,700 ft 3 /s Dec. 14, 1946, gage height, 7.08 ft, from rating curve extended above 4,100 ft 3 /s by logarithmic plotting; minimum, 59 ft 3 /s Nov. 30, Dec. 1, 1936, Sept. 25, 26, 1940.




DISCHARGE, INPERIOD(CONSECUTIVEDAYS)

1 37

14306090

120183

INTERVAL,


INDICATEDAND ANNUAL

RECURRENCENON-


n

15 1515151515151515

250%

81 82838691

100111134217

520%

70 717275798692

105156

1010%

65 65677074798492

132

205%

61 61636669747883

114

502%

1001%



1 37

15306090

DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUf.L


n

16 161616161616

250%

3270 2270169012901100916834

520%

4760 344024901780142011101010

1010%

5960 449031502120160012101100

254%

7760 624041702560180012901170

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

7340 9050


157

SANDY RIVER BASIN

14137000 SANDY RIVER NEAR MARMOT, OR

LOCATION. Lat 45°23'30", long 122°07'40", in SE 1/4 sec.13, T.2 S., R.5 E., Clackamas County, Hydrologic Unit 17080001, on right bank. 0.7 mi southwest of Marmot, 0.8 mi upstream from Sandy River Dam of Portland General Electric Co., 6.6 mi downstream from Salmon River, and at mile 30.9.


PERIOD OF RECORD. August 1911 to 1987. Published as "at Marmot" October 1912 to September 1913. Recordsfor January 1916 to June 1919, published as "below dam, near Marmot," obtained by combining records for Sandy River below dam, near Marmot, with records for Sandy River Canal near Marmot.

REVISED RECORDS. WSP 594: Drainage area. WSP 1288: 1912(M), 1915, 1922, 1924, 1934(M). WSP 1318: 1932(M).

GAGE. Water-stage recorder. Elevation of gage is 730 ft, from river-profile map. Aug. 15, 1911, toDec. 20, 1915, and July 2, 1919, to Oct. 19, 1933, nonrecording gage at site 1.0 mi upstream at different datum. Oct. 20, 1933, to Sept. 30, 1958, water-stage recorder at site 0.6 mi upstream at different datum.


AVERAGE DISCHARGE. 76 years, 1,362 ft'/s, 70.60 in/yr, 986,800 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 61,400 ft 3 /s Dec. 22, 1964, gage height, 17.05 ft, from rating curve extended above 7,000 ft 3 /s; maximum gage height, 17.10 ft, Feb. 23, 1986; minimum, 195 ftVs

Nov. 27, 28, 1952.





1 37

14306090

120183



n

71 7171717171717171

250%

292297306319339375412469689

520%

254 257265275291317344384543

1010%

235 238244254269290313348483

205%

221 224229238251270290322439

502%

206 208212220233249266295396

1001%

197 198201209221235252279370



1 37

15306090



n

74 747474747474

250%

10600 781056804250334026902410

520%

15700 1140079305620428033502940

1010%

19300 1400094206470487037403240

254%

23900 17400113007490557042103580

502%

27400 20100127008210607045303820

1001%

31000 22800141008910656048404030



1.25 80%

2 50%

520%

10 10%

25 4%

50 2%

100 1%

9160


158

SANDY RIVER BASIN

14135000 SALMON RIVER AT WELCHES, OR

LOCATION.~Lat 45°19'10", long 121°57'10", in S-l/2 sec.9, T.3 S., R.7 E., ClacKamas County, Hydrologic Unit 17080001, 1,200 ft downstream from Cheeney Creek and 0.8 mi southeast of Welches.


PERIOD OF RECORD. September 1913 to September 1914, August 1920 to September 1921, April 1925 to September 1936.

GAGE. Staff gage. Elevation of gage is 1,350 ft, from topographic map. Aug. 15, 1913, to Sept. 30, 1914,0.8 mi downstream at different datum. July 26, 1920, to Sept. 15, 1921, Apr. 1, 1925, to May 2, 1931, about 500 ft downstream at various datums.


AVERAGE DISCHARGE. 13 years (water years 1914, 1921, 1926-36), 438 ft 3/s, 317,300 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 13,000 ft 3/s Mar. 31, 1931, gage height, 9.80 ft, site and datum then in use, from rating curve extended above 4,600 ft 3 /s; minimum, 65 ft 3/s Dec. 3-6, 1929, Aug. 31 to

Sept. 3, 1931.





1 37

14306090

120183


n

11 1111111111111111

250%

71 717274788694

106171

520%

66 66676971768087

130

1010%

64 64656769727581

117

205%

50 1002% 1%



1 37

15306090



n

13 131313131313

250%

4220 2930206014901150915806

520%

5700 39602850197014101110957

1010%

6700 458033702270158012301050

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3950 5360 9110


156

SANDY RIVER BASIN

14138800 BLAZED ALDER CREEK NEAR RHODODENDRON, OR

LOCATION. Lat 45°27'10", long 121°53'25", in NW 1/4 SE 1/4 sec.25, T.I S., R.7 E., Clackamas County, Hydrologic Unit 17080001, in Mount Hood National Forest, on right bank 600 ft below the confluence of Bedrock and Hickman Creeks and 8.6 mi north of Rhododendron.

DRAINAGE AREA.~8.17 mi2 .




AVERAGE DISCHARGE. 24 years, 58.8 ft 3 /s, 97.74 in/yr, 42,600 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. MaxImum discharge, 2,610 ft 3/s Dec. 22, 1964, gage height, 8.25 ft, from rating curve extended above 330 ft /s, on basis of slope-area measurement of peak flow; minimum discharge, 1.5 ft /s

Sept. 5-10, 28, 29, 1967.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183



n

23 2323232323232323

250%

2.3 2.42.52.73.24.57.01024

520%

1.9 1.92.02.12.43.14.67.117

1010%

1.7 1.71.81.92.12.63.75.714

205%

1.6 1.61.71.71.92.33.04.712

50

1, 1,1.1.1.2.23,9.

2%

.5

.5

.6

.6

.8

.0

.5

.8

.6

1001%



1 37

15306090



n

24 242424242424

250%

735 498349237173133116

520%

1030 700480312223168145

1010%

1210 831559359257192164

254%

1420 994652415302223189

502%

1560 1110717455337247209

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

793 1110 1530 1790 2120 2360


159

SANDY RIVER BASIN

14138850 BOLL RON RIVER NEAR MOLTNOMAH FALLS, OR

LOCATION.~Lat 45°29'50", long 122800'50", near center of sec.12, T.I S., R.6 E., Multnomah County, HydrologicOnit 17080001, in Mount Hood National Forest, on right bank 1.2 mi upstream from North Fork, 7.0 mi southeast of Multnomah Falls, and at mile 14.8.



GAGE. Water-stage recorder and crest-stage gage. Elevation of gage is 1,080 ft, from topographic map.

REMARKS. Regulation at times since 1915 by Bull Run Lake, usable capacity, 12,270 acre-ft. No diversion upstream from station.

AVERAGE DISCHARGE. 21 years, 416 ftVs, 117.94 in/yr, 301,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,610 ftVs Jan. 20, 1972, gage height, 13.22 ft; minimum discharge, 33 ft 3/s Sept. 27, 1967.

STATISTICAL SOMMARIES




1 37

14306090

120183


n

20 2020202020202020

250%

46474851597396

119191

520%

39 40414247557292

154

1010%

36 36373842486180

138

205%

34 34343639435370

126

502%

31 31313335384561

114

1001%

MAGNITODE AND PROBABILITY OF ANNUAL HIGH FLOW BASED ON PERIOD OF RECORD 1967-1987


1 37

15306090

DISCHARGE, IN FT3 /S, FOR INDICATED RECORRENCE INTERVAL, IN YEARS, AND ANNUAL


n

21 212121212121

250%

4540 3310231015301140897785

520%

5550 38602830192014101110960

1010%

5930 401030202130156012401070

254%

6240410031802370174014001210

502%

6380 413032602520185015101310

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

4770 5870 7220 8030 8990 9660


160

SANDY RIVER BASIN

14138870 FIR CREEK NEAR BRIGHTWOOD, OR

LOCATION.~Lat 45°28'56", long 122°01'36", in NE 1/4 SE 1/4 sec.14, T.I S., R.6 E., Multnomah County, Hydrologic Unit 17080001, on right bank, 6.4 mi north of Brightwood and 0.6 mi above Bull Run Reservoir Number One.



REVISED RECORDS. WDR OR-78-1: 1976. WDROR-82-2: 1976(P), 1978-79<P), 1981.




EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,290 ft 3/s Dec. 2, 1977, gage height, 5.64 ft; minimum discharge, 1.9 ft 3/s Aug. 17-23, 1977, Sept. 16-18, 1981.





1 37

14306090

120183


n

11 1111111111111111

2 2233468

250%

.6

.6

.7

.0

.6

.6

.4

.715

2 2222356

520%

.1

.2

.2

.5

.9

.8

.2

.912

1 22223469

10 2010% 5%

.9

.0

.0

.2

.7

.6

.7

.1

.9

50 1002% 1%



1 37

15306090



n

12121212121212

250%

391 283196127957566

520%

520 3592651721269581

1010%

576 38830220214811093

25 50 1004% 2% 1%



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

561

Systematic n = 12 historical n = Generalized 17b skew = 0.010

161

SANDY RIVER BASIN

14138900 NORTH FORK BULL RUN RIVER NEAR MULTNOMAH FALLS, OR

LOCATION.~Lat 45°29'40", long 122°02'05", near line between SE 1/4 and SW 1/4 sec.11, T.I S., R.6 E., Multnomah County, Hydrologic Unit 17080001, Mount Hood National Forest, on left bank 7.0 mi southeast of Multnomah Falls and at mouth.



GAGE. Water-stage recorder. Elevation of gage is 1,060 ft, from topographic map. Prior to Oct. 1, 1978, at site 700 ft upstream at datum 18.7 ft higher.

REMARKS. Regulation at times since 1958 by North Fork Reservoir, capacity, about 1,030 acre-ft. No diversion upstream from station.

AVERAGE DISCHARGE. 22 years, 76.0 ft 3/s, 124.05 in/yr, 55,060 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 9,700 ft 3 /s, probably affected by surge from release of water temporarily impounded by landslide upstream from station, Jan. 20, 1972, gage height, 9.89 ft, from floodmark, from rating curve extended above 850 ft /s on basis of estimate of peak flow from slope-area survey; minimum discharge, 9.1 ft 3/s Oct. 2-14, 1979.





1 37

14306090

120183


n

21 2121212121212121

250%

13 1314141517212537

520%

11 1112121314172029

1010%

10 1011111113151825

205%

9.7 9.79.7101012141623

502%

8.8 8.88.89.09.312131520

1001%



1 37

15306090



n

22 222222222222

250%

811 563397274204160141

520%

1200 779547371268209179

1010%

1460 907637431308242206

254%

1770 1050738504355287242

502%

2000 1150807555388322270

1001%



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

2830


162

SANDY RIVER BASIN

14139500 BULL RUN RIVER BELOW LAKE BEN MORROW, OR

LOCATION. Lat 45°29'00«, long 122°04'50", in SE 1/4 sec.16, T.I S., R.6 E., Multnomah County, Hydrologic Unit 17080001, in gatehouse at Bear Creek. Dam on Bull Run River, 500 ft downstream from Bear Creek., 1,000 ft upstream from Fivemile Creek, and 8.5 mi northeast of Bull Run.


PERIOD OF RECORD. October 1929 to September 1954. Published as "below Bull Run Reservoir near Bull Run" in 1930 and as "below Bull Run Reservoir" 1931-37.

GAGE. Water-stage recorder upstream from crest of spillway and scales indicating number of turns outlet needle valves are open. Datum of gage is National Geodetic Vertical Datum of 1929 (levels by Portland Water Bureau). Prior to Oct. 1, 1934, at site 0.5 mi downstream at different datum.

REMARKS. Discharge determined by combining discharge through valves near base of dam and discharge over crest of spillway (elevation, 1,036 ft). Leakage at dam is less than 1 ft /s and is disregarded. Flow regulated by Bull Run Lake and Lake Ben Morrow (since 1928); flow from Bull Run Lake is not artificially regulated but reaches river through surface and underground channels.

AVERAGE DISCHARGE. 25 years (water years 1930-54), 582 ft 3 /s, 421,400 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge at dam, 16,100 ft 3 /s, Mar. 31, 1931, elevation, 1,047.40 ft (with 1 valve open 30 turns); no flow Oct. 27, 1939, Oct. 2, 1951, Dec. 11-13, 1952.





1 37

14306090

120183


n

24 2424242424242424

250%

6471808794

105113136240

520%

21 325568778794

103171

1010%

4.5 16446070808791

145

205%

0.0 5.0365565758283

127

502%

0.0 0.0294960707875109

1001%



1 37

15306090



n

25 252525252525

250%

5710 405028402080165012701140

520%

7860 547037602690214015901380

1010%

9480 648043803050243017801500

254%

11800 783051603470276019901640

502%

13600 890057403760298021301720

1001%

15700 1000063304030319022501790

MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW


1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


163

SANDY RIVER BASIN

14139700 CEDAR CREEK NEAR BRIGHTWOOD, OR

LOCATION.~Lat 45°27'30", long 122°01'50" r in NE 1/4 sec.26, T.I S. r R.6 E., Clackamas County, Hydrologlc Unit 17080001, in Mount Hood National Forest, on right bank 5.8 mi north of Brightwood and at mile 2.5.


PERIOD OF RECORD. July to November 1964, June 1965 to 1987.




EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,990 ft 3/s Dec. 22, 1964, gage height, 7.20 ft, from rating curve extended above 320 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 6.9 ft /s

Oct. 9-13, 1979.





1 37

14306090

120183


n

21 2121212121212121

250%

9.6 9.810111214172131

520%

8.4 8.58.69.01012141725

1010%

7.8 7.88.08.49.211131622

205%

7.3 7.37.57.98.610121420

502%

6.8 6.86.97.48.09.7111318

1001%



1 37

15306090



n

22222222222222

250%

708 501350234176141123

520%

895 608432296224175153

1010%

980 646466334253197172

254%

1060 674495378288223195

502%

1100 686510409313243213

1001%

--

--



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

659 932 1280 1490 1750 1920

Systematic n = 22 historical n Weighted skew - -0.318

164

SANDY RIVER BASIN

14139800 SOUTH FORK BULL RUN RIVER NEAR BULL RUN, OR

LOCATION. Lat 45°26'38", long 122°06'20", in NE 1/4 NE 1/4 sec.31, T.I S., R.6 E., Clackamas County, Hydrologic Unit 17080001, in Mount Hood National Forest, on right bank 6.2 mi northeast of Bull Run, and at mile 0.6.



GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 990 ft from topographic map.


AVERAGE DISCHARGE. 13 years, 108 ft 3 /s, 95.24 In/yr, 78,250 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. MaxImum discharge, 2,520 ft3/s Dec. 2, 1977, gage height, 8.32 ft, from rating curve extended above 1,200 ft 3 /s; minimum discharge, 7.8 ftVs Sept. 10, 1987.





1 37

14306090

120183



n

12 1212121212121212

250%

12 1313141620253352

520%

10 1011121316202641

10 2010% 5%

8.99.19.5101215182335

50 1002% 1%



1 37

15306090



n

13 131313131313

250%

1210 811568374281229201

520%

1520 996707473351278240

10 2510% 4%

1640 1060765533399311266

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1190 1600 2150 2520

Systematic n = 13 historical n = Generalized 17b skew - 0.025

165

SANDY RIVER BASIN

14141500 LITTLE SANDY RIVER NEAR BULL RUN, OR

LOCATION. Lat 45°24'55", long 122°10'20", in NE 1/4 NE 1/4 sec.10, T.2 S. f R.5 E., Clackamas County, Hydrologic Unit 17080001, in Mount Hood National Forest, on left bank 0.25 mi upstream from Portland General Electric Co. dam and tunnel from Sandy River, 3.0 mi east of Bull Run, and at mile 1.95.


PERIOD OF RECORD. May to July 1911, October 1911 to March 1912, June 1912 to April 1913, July 1919 to current year. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS.--WSP 1154: 1949. WSP 1248: Drainage area. WSP 1288: 1912, 1920-21(M), 1922-23, 1931, 1945. WSP 1318: 1920. WDROR-82-2: 1972(P), 1974-76(P), 1978-8KP).

GAGE. Water-stage recorder. Elevation of gage is 720 ft, from topographic map. May 23, 1911, to Apr. 29, 1913, nonrecording gage at site 0.85 mi downstream at different datum, 0.5 mi downstream from Sandy River diversion tunnel. July 1, 1919, to Sept. 30, 1931, water-stage recorder at site 0.1 mi downstream at different datum. Oct 1, 1931, to Nov. 3, 1967, at site 0.1 mi downstream at datum 712 ft above National Geodetic Vertical Datum of 1929. Nov. 4, 1967, to Aug. 8, 1971, water-stage recorder at site 0.1 mi downstream at datum 697.44 ft above National Geodetic Vertical Datum of 1929 (Portland General Electric Co. bench mark.) .


AVERAGE DISCHARGE. 68 years (water years 1920-87), 145 ft 3 /s, 88.30 in/yr, 105,100 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,320 ft 3/s Nov. 20, 1921, gage height, 9.18 ft, site and datum then in use, from rating curve extended above 2,200 ft 3/s; minimum discharge, 8 ft 3/s Aug. 20,

Sept. 16, 17, 1940.





1 37

14306090

120183


n

67 6767676767676767

250%

141415151720263462

520%

121212131416192446

1010%

11 1111121214162039

205%

9.9 9.910111113141835

502%

9.1 9.19.7101111121530

1001%

8.7 8.79.39.71011111327



1 37

15306090



n

68 686868686868

250%

1450 1000703504387306272

520%

2020 1370926654492382335

1010%

2410 16201060748557429374

254%

2910 19601230862634486422

502%

3300 22201350945689528457

1001%

3690 250014601030742568490



T72525TO2550100 80% 50% 20% 10% 4% 2% 1%

1520217030903720454051705810

Systematic n = 69historical n =0 Weighted skew - 0.029

166

SANDY RIVER BASIN

14142500 SANDY RIVER BELOW BULL RUN RIVER, NEAR BULL RUN, OR

LOCATION. Lat 45026'57", long 122°14'38", in SW 1/4 sec.30, T.I S., R.5 E., Clackamas County, Hydrologic Unit 17080001, on left bank 0.1 mi downstream from Bull Run River, 0.2 mi downstream from Dodge Park, 400 ft below city of Portland water conduit crossing Sandy River, and at mile 18.4.


PERIOD OF RECORD. April 1910 to September 1914, October 1929 to September 1966, May 1984 to 1987. Monthly discharge only for some periods, published in WSP 1318.

GAGE. Water-stage recorder. Elevation of gage is 240 ft, from topographic map. April 1910 to September 1914, staff gage at present site at different datum. October 1929 to September 1966, water-stage recorder at site 0.8 mi downstream at different datum.

REMARKS. Flow regulated since 1915 by Bull Run Lake, since 1929 by Bull Run Reservoir Number One (station 14139000), and since 1961 by Bull Run Reservoir Number Two (station 14139900). Some fluctuation caused by Bull Run powerplant of Portland General Electric Company.

AVERAGE DISCHARGE. 44 years (water years 1911-14, 1930-66, 1985-87) 2,327 ftVs, 1,686,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 84,400 ftVs Dec. 22, 1964, gage height, 22.3 ft, site and datum then in use; minimum discharge, 45 ftVs Sept. 26, 1962, minimum dally, 63 ftVs Oct. 12, Nov. 9, 1952.





1 37

14306090

120183


n

303030303030303030

250%

161 297360385409457508620

1060

520%

107 221301326351380410470764

1010%

87 183273300326347370411647

205%

74 154252280308322342370565

502%

62124229258291297314330486

1001%

55 106214245281282297308441



1 37

15306090



n

31313131313131

250%

20300 14900105007840622050104540

520%

27600 19700137009920785061105420

1010%

32600 229001570011100875067105870

254%

39100 270001820012300975073606320

502%

44100 3000019900130001040077906600

1001%

49200 3310021600137001100081606840



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

167

WILLAMETTE RIVER BASIN

14144800 MIDDLE FORK WILLAMETTE RIVER NEAR OAKRIDGE, OR

LOCATION. Lat 43°35'50", long 122°27'20", in NW 1/4 NE 1/4 sec.9, T.23 S., R.3 E., Lane County, Hydrologic Unit 17090001, in Willamette National Forest, on right bank 0.2 mi upstream from Windfall Creek, 8.3 mi upstream from Hills Creek Dam, 10.2 mi south of Oakridge, and at mile 240.8.



GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,556.83 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). Prior to June 21, 1967, at site 0.5 mi upstream at different datums. June 22, 1967, to June 23, 1971, water-stage recorder at same site at datum 5.00 ft higher.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 39,800 ft 3/s Dec. 22, 1964, gage height, 16.96 ft, from floodmark, site and datum then in use, from rating curve extended above 5,100 ft 3 /s on basis of slope-area measurement of peak flow; minimum discharge, 187 ft /s Sept. 15, 16, 1977.





1 37

14306090

120183



n

28 2828282828282828

250%

241 242245249256269284305422

520%

215 216218222229241255270349

1010%

203 205207210219229243256319

205%

195 196198201211221235246298

502%

186 188189192203212227237278

1001%

180 182183186199207222232266



1 37

15306090



n

29 292929292929

250%

6620 480033402420191015401380

520%

11100 782051403450257020101780

1010%

14000 996064104130301023202030

254%

17700 1280080805000356027002320

502%

20400 1490093705640396029902530

1001%

23000 17100107006280437032702730



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

14400 26600 33000 40300



168


14144900 HILLS CREEK ABOVE HILLS CREEK LAKE, NEAR OAKRIDGE, OR

LOCATION. Lat 43°40'50", long 122°22'10", in NW 1/4 NW 1/4 sec.8, T.22 S., R.4 E., Lane County, Hydrologic Unit 17090001, in Willamette National Forest, on right bank 0.2 mi downstream from Tufti Creek, 0.7 mi upstream from Hills Creek Lake, 6.5 mi southeast of Oakridge, and at mile 4.1.


PERIOD OF RECORD. October 1958 to September 1981. Prior to October 1971, published as "Hills Creek above Hills Creek Reservoir".

GAGE.--Water-stage recorder. Datum of gage is 1,630.80 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers).



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 10,700 ft 3/s Dec. 22, 1964, gage height, 12.23 ft, from rating curve extended above 1,800 ft 3/s on basis of slope-area measurement of peak flow; minimum, 14 ft 3 /s Nov. 1, 1958.





1 37

14306090

120183


n

22 2222222222222222

250%

20 2020212226283460

520%

18 1818192023252844

1010%

17 1717181922232637

205%

16 1616171921232432

502%

16 1616171920222327

1001%




1 37

15306090



n

23232323232323

250%

1410 1020692475374304268

520%

2370 17101120712522416363

1010%

3130 22901500917646507435

254%

4220 320021001240838642538

502%

5120 4010265015401010758623

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1100 1690 2810 3800 6850


169


14145500 MIDDLE FORK WILLAMETTE RIVER ABOVE SALT CREEK, NEAR OAKRIDGE, OR

LOCATION. Lat 43°43'20", long 122°26'15«, in NW 1/4 NE 1/4 sec.27, T.21 S., R.3 E., Lane County, Hydrologic Unit 17090001, in Willamette National Forest, on right bank 90 ft upstream from highway bridge, 0.4 mi upstream from Salt Creek, 1.1 mi downstream from Hills Creek Dam, 2.3 mi southeast of Oakridge, and at mile 231.4.


PERIOD OF RECORD. October 1913 to September 1914, September 1935 to 1987. Monthly discharge only September 1935, published in WSP 1318.

REVISED RECORDS. WSP 1248: 1914.

GAGE. Water-stage recorder. Datum of gage is 1,208.01 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). Oct. 3, 1913, to Sept. 30, 1914, nonrecording gage and Sept. 1, 1935, to Aug. 18, 1960, water-stage recorder at sites 400 ft and 1,000 ft downstream, respectively, at different datum.

REMARKS. Flow regulated since 1961 by Hills Creek Lake (station 14145100). No diversions upstream from station.

AVERAGE DISCHARGE. 53 years, 1,156 ft3/s, 40.05 in/yr, 837,500 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 34,000 ft3/s Dec. 28, 1945, gage height, 12.06 ft, site and datum then in use, from rating curve extended above 13,000 ft 3/s; minimum observed discharge, 0.70 ft 3 /s,

Sept. 8-11, 13, 1961, result of regulation.





1 37

14306090

120183


n

24 2424242424242424

250%

276 278282286295313332361537

520%

242 243246250257270282298395

1010%

224 225227230236247257269333

205%

209 210212215220229237247288

502%

193 194195197201208215224244

1001%




1 37

15306090



n

26 262626262626

250%

9350 713050203570290023602140

520%

16000 1130073905040388030802720

1010%

21300 1440090206040447035103040

254%

29000 18800111007330514040203380

502%

35500 22300127008310561043703600

1001%

42600 25900144009300604047003800



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

6780 11800 20900 28200 39200 48400 58800


170


14145500 MIDDLE FORK WILLAMETTE RIVER ABOVE SALT CREEK, NEAR OAKRIDGE, OR Continued





1 37

14306090

120183


n

25 2525252525252525

250%

148 178211256313442618704854

520%

99 118138165201278382465680

1010%

81 93

107125155209273353600

205%

68 768498

123161198272540

502%

57 60637292

117130196477

1001%

51 515257769395

154439



1 37

15306090



n

26 262626262626

250%

4800 454041603480274022001970

520%

6560 632058204920377029702630

1010%

7620 744068505870450035203080

254%

8870 882080907070545042503650

502%

9740 981089607950620048204080

1001%

10600 1080098008840698054104510



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


historical n =

171


14146000 SALT CREEK NEAR OAKRIDGE, OR

LOCATION. Lat 43°43'45", long 122°25'35", in SW 1/4 sec.23, T.21 S., R.3 E., Lane County, Hydrologic Unit 17090001, on right bank 0.7 mi upstream from mouth and 2 mi southeast of Oakridge.


PERIOD OF RECORD. July 1913 to September 1914, October 1933 to September 1951.

GAGE. Water-stage recorder. Datum of gage is 1,245.67 ft above National Geodetic Vertical Datum of 1929. July 19, 1913, to Sept. 30, 1914, staff gage 0.5 mi downstream at different datum.

REMARKS. No regulation. Since spring of 1948, there has been a small intermittent, unmeasured diversion around gage to millpond downstream.

AVERAGE DISCHARGE. 19 years (water years 1914, 1934-51), 293 ft 3/s, 212,100 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,500 ft 3/s Oct. 29, 1950, gage height, 8.00 ft, from rating curve extended above 2,600 ft /s by logarithmic plotting; minimum, 55 ft 3/s Jan. 8, 1937, result of freezeup; minimum dally,

66 ft3/s Jan. 8, 1937.





1 37

14306090

120183


n

17 1717171717171717

250%

100 100102104106111115123165

520%

83 858889919598

102124

1010%

75 78818284879093

108

205%

697375777982848797

50 1002% 1%

_ _



1 37

15306090



n

19 191919191919

250%

1440 1170888700612538490

520%

2270 17201240922764666592

1010%

2850 210014801060844733641

254%

3610 259018001240928803689

50 1002% 1%

--



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3720


172


14146500 SALMON CREEK NEAR OAKRIDGE, OR

LOCATION. Lat 43°45'45", long 122°22'18", in NE 1/4 sec.7, T.21 S., R.4 E., Lane County, Hydrologic Unit17090001, in Willamette National Forest, on right bank. 190 ft upstream from Salmon Creek. Falls, 0.1 mi upstream from Needle Creek, 4.6 mi east of Oakridge, and at mile 5.84.

DRAINAGE AREA.--117 mi , at measuring cable 0.25 mi downstream from gage.

PERIOD OF RECORD. October to November 1909 (gage heights and one discharge measurement only), February 1913 to October 1919, October 1933 to September 1985, October 1986 to September 1987. Monthly discharge only for some periods, published in WSP 1318. Published as Kelsey River near Hazeldell and Salmon Creek near Hazeldell, 1909.

REVISED RECORDS. WSP 794: 1934(M). WSP 814: Drainage area. WSP 1124: 1935, 1942(M), 1943, 1946(M). WSP 1248: 1915, 1918. WDROR-71-1: 1968, 1969(M,P).

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,462.36 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1914, nonrecording gage at several sites within 4 mi of present site at various datums. Oct. 1, 1914, to Oct. 14, 1919, water-stage recorder at site 1.8 mi downstream at different datum. Nov. 5, 1933, to Oct. 27, 1964, water-stage recorder at site 0.8 mi downstream at datum 40.53 ft lower. Oct. 28, 1964, to Aug. 27, 1965, nonrecording gage at site 0.6 mi downstream at different datum.

REMARKS. No regulation or diversion upstream from station. All records given herein are for measuring cable site.

AVERAGE DISCHARGE. 59 years (water years 1914-19, 1934-85, 1987), 427 ftVs, 49.56 in/yr, 309,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 11,600 ft 3/s Dec. 22, 1964, gage height, 9.15 ft, from floodmark, site and datum then in use, from rating curve extended above 2,100 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 63 ft /s Jan. 8, 1937, result of freeze up.





1 37

14306090

120183


n

56 5656565656565656

250%

124 125126129135142151164224

520%

107 108110112117124131140176

1010%

99101103105109116121128156

205%

93 959799

102109114120142

502%

86 88919296

102106111127

1001%

81 8487889298

101105118



1 37

15306090

DISCHARGE, .IN FT3 /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

59 595959595959

250%

2570 204015401180957795727

520%

4090 31202230159012501020920

1010%

5210 395027301870144011601030

254%

6760 512034102220166013201160

502%

7990 607039502480182014401250

1001%

9300 711045102740197015501330



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

5440 7150 9560 11500 13600



173


14147000 WALDO LAKE OUTLET NEAR OAKRIDGE, OR

LOCATION. Lat 43°46'05", long 122°03'10", in SE 1/4 NW 1/4 sec.7, T.21 S., R.6 E., Lane County, Hydrologlc Unit 17090001, in Willamette National Forest, on right bank of artificial outlet channel of Waldo Lake forming the headwaters of the North Fork of the Middle Fork of Willamette River, 20 mi east of Oakridge, and at mile 43.5.

DRAINAGE AREA. 30.5 mi2 , of which about 10.5 mi2 is Waldo Lake.

PERIOD OF RECORD. October 1936 to September 1953, October 1969 to October 1982, October 1983 to September 1984.

GAGE. Water-stage recorder and modified v-notch weir. Elevation of gage is 5,410 ft, from topographic map. October 1936 to September 1953, at site 120 ft upstream on left bank at same datum.

REMARKS. At times seiches from Waldo Lake cause rapid changes in stage at gage many times each hour. No regulation. Diversion tunnel into head of Black Creek, near south end of lake, built about 1914, is sealed off, but there was leakage of 0.51 ft /s past control gates, measured Oct. 1, 1981.

AVERAGE DISCHARGE. 30 years, 34.2 ft3/s, 24,780 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 150 ft 3/s Jan. 20, 1971, from rating curve extended above 77 ft 3/s

and adjusted for overbank flow; maximum gage height, 2.98 ft Jan. 2, 1943; no flow at times.






1 37

14306090

120183

n

27 2727272727272727


0 0000125

250%

.4

.4

.4

.5

.9

.7

.8

.714

520%

0, 0,0.0.0,0.0,1,6,

.0

.0

.0

.0

.0

.0

.5

.6

.0

10 2010%

0. 0.0.0.0.0.0.0.3.

.0 ,0,0,0,0,0.1.64

0. 0,0,0,0,0,0,0,1.

5%

.0

.0

.0

.0

.0

.0

.0

.1

.9

502%

0.0 0.00.00.00.00.00.00.01.0

100

0. 0.0.0.0.0.0.0.0.

1%

.0

.0

.0,0.0.0,0,0.6



1 37

15306090



n

29 292929292929

250%

78 777573696461

520%

110 109106102968884

1010%

129 12712511911110196

254%

150 148145138128116109

502%

163 161159151138126118

1001%

176 174172162148135125



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

52 112 134 161 180

Systenjatic n = Weighted skew

30 historical n = « -0.293

174


14147500 NORTH FORK OF MIDDLE FORK WILLAMETTE RIVER NEAR OAKRIDGE, OR

LOCATION.~Lat 43°45'25«, long 122°30'15", in SW 1/4 sec.7, T.21 S., R.3 E., Lane County, Hydrologic Unit 17090001, on left bank 2.5 mi northwest of Oakridge, and at mile 1.0.

DRAINAGE AREA. 246 mi 2 , at measuring section 0.5 mi downstream.

PERIOD OF RECORD. October 1909 to March 1916, September 1935 to September 1985, October 1986 to September 1987. Monthly discharge only for some periods, published in WSP 1318. Prior to October 1912, published as "near Hazeldell."

REVISED RECORDS.--WSP 1248: 1914-16.

GAGE. Water-stage recorder. Datum of gage is 1,029.6 ft above National Geodetic Vertical Datum of 1929 (river profile survey). Oct. 1, 1909, to Mar. 31, 1916, water-stage recorder or nonrecording gage at several sites within 0.8 mi of present site at various datums. Sept. 10, 1935, to Oct. 3, 1938, nonrecording gage at present site and datum.

REMARKS. Slight regulation by Waldo Lake; occasional fluctuations during low-water periods caused by log-ponds upstream from station. No diversions upstream from station. All records given herein are for measuring site.

AVERAGE DISCHARGE. 57 years (water years 1910-15, 1936-85, 1987), 791 ft3 /s, 43.67 in/yr, 573,100 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 24,400 ft 3/s Dec. 22, 1964, gage height, 19.14 ft, fromfloodmark, from rating curve extended above 7,100 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 22 ft /s Aug. 20, 1966, probably due to temporary storage into upstream log-pond.





1 37

14306090

120183


n

55 5555555555555555

250%

127 129132136144157174198322

520%

109114116120126136147163242

1010%

101 107110113118126136148208

205%

94103105107112120127137184

502%

88 98

101102106113118127161

1001%

84 969899

103108113120147



1 37

15306090



n

57 575757575757

250%

5940 467034402550205016501490

520%

9360 723050203500272021401900

1010%

11600 898060904120314024402140

254%

14300 1120074504880365028102420

502%

16300 1290084705430402030702610

1001%

18200 14600 94905980437033302790



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

7310 14300 21700 25200


56 historical n = 0.119

175


14148000 MIDDLE FORK WILLAMETTE RIVER BELOW NORTH FORK, NEAR OAKRIDGE, OR

LOCATION.~Lat 43°48'05", long 122°33'35", In SW 1/4 sec.27, T.20 S., R.2 E., Lane County, Hydrologic Unit17090001, on left bank 0.5 ml downstream from Whltehead Creek, 4.2 ml downstream from North Fork of Middle Fork Wlllamette River, 7.0 ml northwest of Oakridge, and at mile 220.2.

DRAINAGE AREA. 924 ml2 .

PERIOD OF RECORD.--March 1911 to September 1912, July 1923 to 1987. Monthly discharge only for some periods, published In WSP 1318. Published as "near Hazeldell" 1911-12 and as "at Eula" 1923-50.

REVISED RECORDS. WSP 694: 1925-28. WSP 814: Drainage area at Eula. WSP 1248: 1924, 1925(M), 1926-28, 1929(M), 1930, 1933, 1946(M). WSP 1398: 1927(M). WSP 1638: 1936(M).

GAGE. Water-stage recorder. Datum of gage Is 934.76 ft above National Geodetic Vertical Datum of 1929.Mar. 22, 1911, to Sept. 30, 1912, nonrecording gage at site 4.0 ml upstream, just downstream from North Fork at different datum. July 1, 1923, to Aug, 11, 1935, nonrecording gage and Aug. 12, 1935, to Sept. 30, 1950, water-stage recorder at site 4.0 mi downstream at different datum.

REMARKS. Flow regulated since 1961 by Hills Creek Lake (station 14145100); slight regulation at times by logponds upstream from station. No diversion upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 81,800 ft 3/s Dec. 28, 1945, gage height, 18.8 ft, from floodmark, site and datum then in use, from rating curve extended above 39,000 ft 3/s; minimum discharge, 322 ft 3/s Aug. 30, 1961, caused by closing outlet gates at Hills Creek. Dam.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage since 1861 and prior to beginning of record, 17.0 ft in February 1890 at site used 1923-50, from information by local resident, discharge, about 55,000 ft /s.





1 37

14306090

120183


n

36 3636363636363636

250%

619 622632645666709757824

1190

520%

531 533544553570600629671891

1010%

488 490501509525549569604771

205%

455 456468475490510524554686

502%

420 421433438452468476503604

1001%

397 398410415428441446473556



1 37

15306090



n

38 383838383838

250%

22000 16500118008610683055805050

520%

34500 243001640011500883070906300

1010%

43500 2980019300133001000080207030

254%

55500 3700023000154001140091107850

502%

64800 4250025600169001240098908410

1001%

74400 48100283001840013300106008930



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

15300 24000 47000 69900


=100

176


14148000 MIDDLE FORK WILLAMETTE RIVER BELOW NORTH FORK, NEAR OAKRIDGE, OR Continued





1 37

14306090

120183


n

25 2525252525252525

250%

825 852891932

10101190133014501790

520%

660 692726755820968

111012401490

1010%

582 616645670730868

101011401360

205%

522 558582603661793927

10501260

502%

460 496514532589715840967

1160

1001%

421 458472488545667785911

1100



1 37

15306090



n

26 262626262626

250%

15100 1220098508120668053504810

520%

22700 184001430011100902072606430

1010%

27200 2250017200129001040084307380

254%

32400 2770020700149001190098308460

502%

35900 31500234001630012900108009210

1001%

39100 35200259001770013800118009890



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


historical n

177


14150000 MIDDLE FORK WILLAMETTE RIVER NEAR DEXTER, OR

LOCATION. Lat 43°56'45", long 122°50'10", in SE 1/4 NW 1/4 sec.5, T.19 S., R.I W., Lane County, Hydrologic Unit 17090001, on right bank. 0.6 mi upstream from Lost Creek., 2.0 mi northwest of Dexter, 2.6 mi downstream from Dexter Dam, and at mile 201.2.


PERIOD OF RECORD. October 1946 to September 1954 (published as "at Lowell"), June 1955 to 1987. Monthly discharge only for October 1954 to June 1955, published in WSP 1738.

REVISED RECORDS. WSP 1638: 1948(P).

GAGE. Water-stage recorder. Datum of gage is 592.30 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). Prior to Aug. 23, 1950, nonrecording gage and Aug. 23, 1950, to Sept. 30, 1954, at site 4.0 mi upstream at different datum, and June 9, 1955, to Feb. 18, 1977, at datum 3.00 ft higher.

REMARKS. Flow regulated since 1953 by Lookout Point Lake (station 14149000), since 1955 by Dexter Lake (re-regulating), and since 1961 by Hills Creek Lake (station 14145100).

AVERAGE DISCHARGE.--41 years, 3,163 ft 3 /s, 2,292,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 62,600 ft 3/s Jan. 18, 1953, gage height, 12.46 ft, site and datum then in use, from rating curve extended above 33,000 ft 3 /s; minimum dally discharge, 100 ft 3/s

Nov. 25, 1960.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage, 13.9 ft Dec. 28, 1945, former site and datum.





1 37

14306090

120183


n

25 2525252525252525

250%

88910401140118012301350154017002020

520%

509 758841858896960

110012201560

1010%

340 59965766970977289810101360

205%

229475510519561631747861

1200

502%

137 350362369413489596710

1050

1001%

93278279285328407507621955



1 37

15306090



n

26 262626262626

250%

11800 11600110009530749060705400

520%

15200 148001410012200989080407070

1010%

17100 1640015600136001140093308100

254%

19200 18100171001500013300110009340

502%

20500 191001800015900146001220010200

1001%

21700 200001870016600160001340011100



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


historical n

178


14150300 FALL CREEK NEAR LOWELL, OR

LOCATION.~Lat 43°58'15", long 122°38'15", in SW 1/4 sec.25, T.18 S., R.I E., Lane County, Hydrologic Unit 17090001, on right bank. 0.1 mi downstream from North Fork., 8.0 mi northeast of Lowell, and at mile 14.4.



GAGE. Water-stage recorder. Datum of gage is 844.42 ft above National Geodetic Vertical Datum of 1929.


AVERAGE DISCHARGE. 24 years, 413 ft3/s, 47.53 in/yr, 299,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 12,100 ft 3/s Jan. 21, 1972, which may have been caused by release from breakup of temporary logjam 12 mi upstream, gage height, 11.84 ft; minimum discharge, 16 ft /s Oct. 3, 4, 1965.





1 - 3

714306090

120183


n

23 2323232323232323

250%

25 25262731384556

110

520%

21 2122232531364381

1010%

19 1920212328323869

205%

17 1819202125293461

502%

16 1718181923263053

1001%

_ .



1 37

15306090



n

24 242424242424

250%

4870 34202420174013301010909

520%

6940 492034102370173013501180

1010%

8170 591040602760197015601350

254%

9580 714048603230223018101560

502%

10500 804054503570241019901700

1001%

_



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

6590 9890 12000 14700


179


14150800 WINBERRY CREEK NEAR LOWELL, OR

LOCATION. Lat 43°54'50", long 122°41'15", in NE 1/4 SE 1/4 sec.16, T.19 S., R.I E., Lane County, Hydrologic Unit 17090001, on right bank 0.9 mi upstream from Nelson Creek, 4.6 mi east of Lowell, and at mile 4.4.



GAGE. Water-stage recorder. Datum of gage is 863.70 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers).



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,500 ft 3/s Dec. 22, 1964, gage height, 8.07 ft; minimum, 1.5 ft 3/s

Sept. 4, 5, 8-10, 1967.





1 37

14306090

120183


n

17 1717171717171717

250%

4.3 4.44.75.15.87.79.41229

520%

3.1 3.23.43.74.15.66.89.020

1010%

2.6 2.72.93.23.54.85.97.916

2 2223457

205%

.2

.3

.5

.7

.1

.3

.3

.314

50 1002% 1%



1 37

15306090



n

18 181818181818

250%

1300 990687483373286258

520%

1980 14901010669493383338

1010%

2430 18301240792566445385

254%

2990 22701550947651522440

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1080 1740 2860 3740 5030


180


14151000 FALL CREEK BELOW WINBERRY CREEK, NEAR FALL CREEK, OR

LOCATION.~Lat 43°56'40", long 122°46'25", in NW 1/4 SE 1/4 sec.2, T.19 S., R.I W., Lane County, Hydrologic Unit 17090001, on right bank 10 ft upstream from highway bridge, 1.1 mi downstream from Fall Creek Dam, 2.3 mi southeast of town of Fall Creek, and at mile 6.1.


PERIOD OF RECORD. October to December 1911 (published as Big Fall Creek near Fall Creek; gage heights and discharge measurements only), September 1935 to 1987.

REVISED RECORDS. WSP 1094: 1946(M). WSP 1248: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 637.81 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark). Oct. 1 to Dec. 31, 1911, nonrecording gage at site 0.25 mi downstream at different datum. Sept. 9, 1935, to Aug. 3, 1950, nonrecording gage at present site and datum.

REMARKS. Flow regulated since 1966 by Fall Creek Lake (station 14150900). No diversion upstream from station.

AVERAGE DISCHARGE. 52 years, 583 ft 3 /s, 42.56 in/yr, 422,400 acre-ft/yr, adjusted for storage in Fall Creek Lake since January 1965.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 24,700 ft 3/s Dec. 11, 1956, gage height, 18.80 ft, from rating curve extended above 9,700 ft 3 /s; minimum discharge, 1.5 ft 3 /s Oct. 7, 8, 1965, probably as a result of

regulation.





1 37

14306090

120183


n

29 2929292929292929

250%

32 32333539465371

158

520%

25 26272831364151

110

1010%

23 2324252731364289

205%

20 2122222528323674

502%

18 19192022.24283059

1001%

17 1818182122262651



1 37

15306090



n

30 303030303030

250%

7510 541035302490194015201330

520%

10700 755048603240250019301680

1010%

12700 887057003670262021701880

254%

14900 1040067004160317024502120

502%

16400 1150074204480341026502280

1001%

17800 1260081104780362028302430



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

6430 15200


181


14151000 FALL CREEK BELOW WINBERRY CREEK, NEAR FALL CREEK, OR Continued





1 37

14306090

120183


n

20 2020202020202020

250%

37 3741455886

140204342

520%

23 232629334687

122255

1010%

17 17202124336792

212

205%

12 12151618245572

180

502%

7.9 8.1111113174454

146

1001%



1 37

15306090



n

21 212121212121

250%

3710 351030002290171013801200

520%

4360 415037302890217017901540

1010%

4560 436040303170241019901690

254%

4690 450042803430264021701820

502%

4740 456044103570279022701890

1001%

_



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


historical n

182


14151500 LITTLE FALL CREEK NEAR FALL CREEK, OR

LOCATION. Lat 43°58'10", long 122°45'20", in S-l/2 sec.25, T.18 S., R.I W., Lanr County, Hydrologic Unit 17090001, 4 mi east of Fall Creek Post Office and 4.5 mi upstream from mouth.


PERIOD OF RECORD.--October 1935 to September 1948.

GAGE. Staff gage. Elevation of gage is 715 ft, by barometer. "


AVERAGE DISCHARGE. 13 years (water years 1936-48), 179 ft 3/s.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,110 ft 3/s Dec. 28, 1945, gage height, 8.20 ft, from rating curve extended above 2,400 ft /s on basis of velocity-area study; minimum observed, 10 ft /a Dec. 1, 1936,

Aug. 26, 27, 30, 31, Sept. 1, 1940.





1 37

14306090

120183


n

12 1212121212121212

250%

15 1515161820232849

520%

12 1212131416182134

10 2010% 5%

10 1111111314161829

50 1002% 1%



1 37

15306090



n

13 131313131313

250%

1980 14601030766571459408

520%

2980 224015101060770602534

1010%

3600 275018001220882682607

25 50 1004% 2% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


183


14152000 MIDDLE FORK WILLAMETTE RIVER AT JASPER, OR

LOCATION. Lat 43°59'55", long 122°54'20", in SW 1/4 SW 1/4 sec.14, T.18 S., R.2 W., Lane County, Hydrologic Unit 17090001, on right bank. 25 ft downstream from highway bridge at Jasper, 0.1 mi downstream from Hills Creek., and at mile 195.0.


PERIOD OF RECORD. September 1905 to February 1912, July 1913 to March 1917, October 1952 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS.--WSP 1288: 1907-8, 1910-12, 1914-16, drainage area.

GAGE. Water-stage recorder. Datum of gage is 513.45 ft above National Geodetic Vertical Datum of 1929.September 1905 to February 1912, and July 1913 to March 1917, nonrecording gage at approximately same site at datum about 1.5 ft higher, Oct. 22, 1952, to Sept. 30, 1953, nonrecording gage at site 25 ft upstream at same datum.

REMARKS. Flow regulated since 1953 by Lookout Point Lake (station 14149000), since 1961 by Hills Creek Lake (station 14145100), and since 1966 by Fall Creek Lake (station 14150900).

AVERAGE DISCHARGE. 44 years (water years 1906-11, 1914-16, 1953-87), 4,115 ft 3 /s, 2,981,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 94,000 ftVs Nov. 23, 1909, gage height, 17.4 ft, datum then in use, from graph based on gage readings, from rating curve extended above 42,000 ft 3/s; minimum discharge, 366 ftVs Dec. 5, 1954.





1 37

14306090

120183


n

202020202020202020

250%

1350 13701420147015701800203022502630

520%

1020 10301050108011601360150016502060

1010%

826 836845877955

1150126013801810

205%

670 678686721799987

108011801610

502%

509 515523561640825893979

1420

1001%



1 37

15306090



n

21 212121212121

250%

16800 1610014700127001060085507580

520%

19100 18600177001570013300110009700

1010%

19600 192001870016900146001220010800

254%

19800 196001940018000158001360011900

502%

19900 197001960018500164001440012600

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


184


14152500 COAST FORK WILLAMETTE RIVER AT LONDON, OR

LOCATION. Lat 43°38'30", long 123°05'05", in SW 1/4 sec.20, T.22 S., R.3 W., Lane County, Hydrologic Unit 17090002, on left bank 0.6 mi north of London, 11.0 mi south of Cottage Grove, and at mile 35.9.


PERIOD OF RECORD. September 1935 to September 1987 (discontinued).


GAGE. Water-stage recorder. Datum of gage is 852.58 ft above National Geodetic Vertical Datura of 1929 (levels by Corps of Engineers). Sept. 18 to Oct. 17, 1935, nonrecording gage at same site and datura.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 12,500 ft 3/s Dec. 22, 1964, gage height, 13.37 ft, from rating curve extended above 3,200 ftVs, on basis of slope-area measurement of peak flow; minimum discharge, 6.8 ftVs

Aug. 18, 1977.





1 37

14306090

120183



n

51 5151515151515151

250%

13 1313141518202547

520%

10 1011121215172035

1010%

9.2 9.49.7101113151830

205%

8.4 8.68.99.41012141626

502%

7.6 7.78.08.59.511131422

1001%

7.1 7.27.57.99.011121320



1 37

15306090



n

52 525252525252

250%

2610 19501300906689544471

520%

3960 281018501240907712611

1010%

4840 3330219014301030803690

254%

5900 3920258016601160900777

502%

6670 4310285018201250962834

1001%

7400 46703100197013301020886



l7~252 5 10 25 50 J-QQ 80% 50% 20% 10% 4% 2% 1%

233036605750729093801100012800

Systematic n = 52historical n =0 Weighted skew - -0.004

185


14153500 COAST FORK WILLAMETTE RIVER BELOW COTTAGE GROVE DAM, OR

LOCATION. Lat 43°43'15", long 123°02'55", in NE 1/4 sec.28, T.21 S., R.3 W., Lane County, Hydrologic Unit17090002, on right bank at bridge 0.3 mi downstream from Cottage Grove Dam, 5.5 mi south of Cottage Grove, and at mile 29.4.


PERIOD OF RECORD. January 1939 to 1987. Prior to October 1944, published as "near Cottage Grove."

REVISED RECORDS.--WSP 1448: 1949(M).

GAGE. Water-stage recorder. Datum of gage is 711.00 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark). Jan. 1 to Oct. 12, 1939, nonrecording gage and Oct. 13, 1939, to Sept. 30, 1944, water-stage recorder at several sites and datums 0.8 mi downstream.

REMARKS. Flow regulated since 1942 by Cottage Grove Lake (station 14153000). Small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 48 years, 273 ft3/s, 35.65 in/yr, 197,800 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,910 ft3/s Dec. 24, 1964, gage height, 11.83 ft; no flow July 5-7, 1945, and for part of Aug. 24, 1947.





1 37

14306090

120183


n

44 4444444444444444

250%

41 42454649566778116

520%

252730333744526096

1010%

16 1922263138455187

205%

10 1316202633394580

502%

0.0 8.111152128333973

1001%

0.0 5.77.6121825303569


DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCEPERIOD(CONSECUTIVEDAYS)

1 37

15306090

n

45 454545454545

250%

2720 248019101290962737638

INTERVAL,EXCEEDANCE

520%

3080 2890249017701290977835

IN YEARS, ANDPROBABILITY, IN

1010%

3140 29802720202014501090920

254%

3160 30102910228016301190992

ANNUALPERCENT

502%

3170 302029602440173012501030

1001%

3170 302029802580182013001050



1.25 2 80% 50%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

186


14154500 ROW RIVER ABOVE PITCHER CREEK, NEAR DORENA, OR

LOCATION. Lat 43°44'10«, long 122°52'20«, in NE 1/4 sec.24, T.21 S., R.2 W., Lane County, Hydrologic Unit 17090002, on right bank 0.5 mi upstream from Pitcher Creek, 1.2 mi northwest of Dorena, and at mile 13.2.


PERIOD OF RECORD. September 1935 to 1987. Prior to October 1949, published as "at Star."

GAGE. Hater-stage recorder. Datum of gage is 856.16 ft above National Geodetic Vertical Datum of 1929. Sept. 16, 1935, to Oct. 17, 1938, nonrecording gage at site 450 ft upstream at datum 1.00 ft higher.

REMARKS. Slight regulation caused by upstream logponds. No diversion upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 33,100 ft 3 /s Dec. 22, 1964, gage height, 18.19 ft, from rating curve extended above 12,000 ft /s, on basis of slope-area measurement of peak flow; minimum discharge, 10 ft /s

Sept. 24, 25, 1951, Oct. 7, 8, 1958.





1 37

14306090

120183


n

51 5151515151515151

250%

19 19202224303752

139

520%

15 1516171923283893

1010%

13 1314151720243274

205%

12 1213141518222761

502%

10 1112121417192348

1001%

9.81011121316182141



1 37

15306090



n

52525252525252

250%

8260 587038602680203015701380

520%

12100 843054303610265020401760

1010%

14600 1000064104160300023201990

254%

17500 1200076004790340026302250

502%

19500 1330084405220366028502420

1001%

21400 1460092505610391030502590



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

20200 24400


187


14155500 ROW RIVER HEAR COTTAGE GROVE, OR

LOCATION.--Lat 43°47'35", long 122°59'25", in NE 1/4 sec.36, T.20 S., R.3 W., Lane County, Hydrologic Unit17090002, on right bank 1.7 mi upstream from Mosby Creek, 2.1 mi downstream from Dorena Dam, 3.5 mi east of Cottage Grove, and at mile 5.5.


PERIOD OF RECORD. January 1939 to 1987. Prior to October 1947, published as "near Dorena."

GAGE. Water-stage recorder. Datum of gage is 685.24 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). Jan. 5 to Oct. 12, 1939, nonrecording gage at site 180 ft upstream at datum 1.00 ft higher.

REMARKS. Flow regulated since October 1949 by Dorena Lake (station 14155000) . No diversion upstream from station.

AVERAGE DISCHARGE. 48 years, 754 ft3/s, 37.92 in/yr, 546,300 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 21,400 ftVs Dec. 28, 1945, gage height, 18.20 ft; minimum discharge, 0.20 ft 3/s Sept. 25 to Oct. 7, 1958.





1 37

14306090

120183



n

10 1010101010101010

250%

25 26273134404867

173

520%

19 19202326313547

107

10 2010% 5%

17 1718192227304080

50 1002% 1%

__ __ -- --



1 37

15306090



n

10 101010101010

250%

8580 615040402810215016701500

520%

13300 944061404070294022802020

1010%

16500 1170075804930342026802360

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

7240 11100 17300 22000


188


14155500 ROW RIVER NEAR COTTAGE GROVE, OR Continued






1 37

14306090

120183


n

_ 3737373737

250%

129153209256328

520%

86

106147183258

1010%

_ 6085

119146224

205%

__ 407099

118197

502%

23567991

170

1001%

15476875

153



1 37

15306090



n

38 383838383838

250%

4770 456043103280254019301670

520%

6150 588054604320328025302200

1010%

7370 688060404920370028802490

254%

9310 829066305590417032702800

502%

11100 946069906050448035302990

1001%

13200 1070072906470477037703170



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

189


14156000 MOSBY CREEK NEAR COTTAGE GROVE, OR

LOCATION. Lat 43°44'40", long 122°59'00", in NW 1/4 sec.18, T.21 S., R.2 W., Lane County, Hydrologic Unit 17090002, on right bank 0.2 mi upstream from Kizer Creek and 5 mi southeast of Cottage Grove.

DRAINAGE AREA. 85 mi, approximately.

PERIOD OF RECORD. February 1936 to September 1946.

GAGE. Staff gage. Elevation of gage is 750 ft, from topographic map.


AVERAGE DISCHARGE. 10 years (water years 1937-46), 191 ft 3/s.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,520 ftVs Dec. 28, 1945, gage height, 10.4 ft from floodmark, from rating curve extended above 2,400 ft 3 /s; minimum, 3 ftVs Aug. 15, to Sept. 2, 1940.






1 37

14306090

120183


FT3/S, FORIN YEARS,


EXCEEDANCE PROBABILITY, IN

2 550% 20%

1010%

::

205%

::

PERCENT

502%

:: --

1001%



1 37

15306090



n

10 101010101010

250%

2720 19501290898677565479

520%

4340 303019401330948791675

1010%

5610 3840242016601130930804

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2230 3560 5810 7590


190


14156500 MOSBY CREEK AT MOUTH, NEAR COTTAGE GROVE, OR

LOCATION. Lat 43°46'35", long 122°59'55", in SE 1/4 NW 1/4 sec.l, T.21 S., R.3 W., Lane County, Hydroloqic Unit 17090002, on left bank 3.5 mi southeast of Cottage Grove and at mile 1.0.


PERIOD OF RECORD. September 1946 to September 1981. Monthly discharge only September 1946, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 676.62 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark).



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 14,100 ft 3 /s Dec. 22, 1964, gage height, 13.37 ft, from rating curve extended above 4,600 ft /s on basis of slope-area measurement of peak flow; minimum, 2.8 ft /s Aug. 15, 1973,

Sept. 24, 1974.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

32 3232323232323232



250%

6.1 6.36.77.38.410131843

520%

4.4 4.64.95.46.17.79.31331

3 344568

1010%

.7

.9

.2

.6

.2

.6

.01226

205%

3.3 3.43.74.04.55.87.21123

23333569

502%

.8

.0

.2

.4

.9

.0

.4

.320

100

2 2233458

1%

.5

.7

.9

.1

.5

.5

.9

.618



1 37

15306090

DISCHARGE, IN FT $ /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

34 343434343434

250%

3610 271017901190901684591

520%

5300 3790248015801150887753

1010%

6310 4400287018001280997843

254%

7450 50703320205014101110942

502%

8210 549036202220150011901010

1001%

8900 586038902370157012601060



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%


191


14157000 COAST FORK WILLAMETTE RIVER AT SAGINAW, OR

LOCATION. Lat 43°50'05«, long 123°02'30", in NW 1/4 sec.15, T.20 S., R.3 W., Lane County, Hydrologic Unit 17090002, on right bank at Saginaw, 1.0 mi downstream from Row River.


PERIOD OF RECORD. October 1923 to September 1951. Monthly discharge only for some periods, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 595.76 ft above National Geodetic Vertical Datum of 1929. Prior to May 10, 1930, chain gage at site 50 ft upstream at different datum and May 10, 1930, to Oct. 12, 1938, at present datum.

REMARKS. Small diversions and regulation by log ponds upstream from station; regulation by Cottage Grove Reservoir since Oct. 31, 1942, and Dorena Reservoir since Oct. 11, 1949.

AVERAGE DISCHARGE. 28 years (water years 1924-51), 1,236 ft3 /s, 894,800 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 32,900 ft 3/s Dec. 28, 1945, gage height, 12.38 ft, from rating curve extended above 24,000 ft 3/s; minimum observed, 15 ft 3 /s Aug. 1, Sept. 4, 1928.





1 37

14306090

120183


n

16 1616161616161616

250%

32 33353843515974

173

520%

22 24262934394758

122

1010%

19 20222631364353

105

205%

17 1820242934415194

50 1002% 1%




1 37

15306090



n

18 181818181818

250%

13900 1050073405120387029902570

520%

18200 1400094606640493037103250

1010%

21000 16200107007560555041103640

254%

24600 19100120008620624045504080

50 1002% 1%



1 .25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

13900


192


14157500 COAST FORK WILLAMETTE RIVER NEAR GOSHEN, OR

LOCATION. Lat 43°58'50", long 122°57'55", in NW 1/4 sec.29, T.18 S., R.2 W., Lane County, Hydrologic Unit17090002, on right bank at downstream side of bridge on State Highway 58, 2.5 mi southeast of Goshen, and at mile 6.4.


PERIOD OF RECORD. August 1905 to February 1912, October 1950 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS. WSP 1218: Drainage area. WSP 1248: 1905-12. WSP 1935: 1956.

GAGE. Water-stage recorder. Datum of gage is 473.80 ft above National Geodetic Vertical Datum of 1929. Aug. 23, 1905, to Feb. 7, 1912, nonrecording gage at site 600 ft upstream at different datum.

REMARKS. Flow regulated since 1942 by Cottage Grove Lake (station 14153000) and since 1949 by Dorena Lake (station 14155000). Several small diversions for logponds and irrigation upstream from station.

AVERAGE DISCHARGE. 43 years (water years 1906-11, 1951-87), 1,640 ft 3 /s, 1,188,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 58,500 ft 3 /s Nov. 22, 1909, gage height, 19.5 ft, site and datum then in use, from rating curve extended above 15,000 ft 3 /s; minimum discharge, 36 ft 3 /s Sept. 29, 30,

Oct. 11, 12, 1908.





1 37

14306090

120183


n

36 3636363636363636

250%

155 159167175197258340405525

520%

128133141146160192254316431

1010%

115 121128132145165216273391

205%

104 111117122133145189239362

502%

93100106111122126161204334

1001%

86 9499

104111115144182316



1 37

15306090



n

37 373737373737

250%

12900 1050093907430580045003870

520%

17600 14000122009740753058505020

1010%

20300 159001360010900839065005560

254%

23400 181001490012000924071206080

502%

25400 195001560012700974074706370

1001%

27200 2080016100132001020077406600



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


193


14158000 WILLAMETTE RIVER AT SPRINGFIELD, OR

LOCATION. Lat 44°02'45", long 123°01'40", in SE 1/4 sec.34, T.17 S., R.3 W., Lane County, Hydrologic Unit 17090003, near center of span on downstream side of bridge on U.S. Highway 126 at Springfield, and at mile 185.6.


PERIOD OF RECORD. October 1911 to December 1913, June 1919 to September 1957. Monthly discharge only for October 1911, published in WSP 1318. Published as "at Eugene" June 1919 to September 1928; gage-height records collected at site at Eugene since 1878 are contained in reports of U.S. Weather Bureau.

GAGE. Water-stage recorder. Datum of gage is 423.77 ft above National Geodetic Vertical Datura of 1929.Nov. 27, 1911, to Dec. 31, 1913, chain gage on bridge 0.2 mi upstream at different datum. June 1, 1919, to Nov. 24, 1928, staff gage at site 3.4 mi downstream at datura 23.92 ft lower than described gage.

REMARKS. Flow regulated by Cottage Grove (since 1942), Dorena (since 1949), and Lookout Point Reservoirs (since 1954). Small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 40 years (water years 1912-13, 1920-57), 5,453 ftVs, 3,948,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 140,000 ft 3 /s Dec. 29, 1945, gage height, 20.9 ft, from rating curve extended above 93,000 ft 3 /s; minimum, 500 ft 3 /s Aug. 11, 1926.





1 37

14306090

120183


n

23 2323232323232323

250%

650 661674691734795869962

1530

520%

562 5745845996286667097651130

1010%

527 540548562583616645690985

205%

503 515522536550581599640886

502%

480 492496511518549555592794

1001%



1 37

15306090



n

25 252525252525

250%

44300 35000253001930014600113009870

520%

58400 454003280024600178001390012100

1010%

66800 512003680027600195001540013400

254%

76600 576004090030700211001720014900

502%

83400 618004350032700221001830015800

1001%

89700 655004570034500229001940016700



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

68100 102700 112600


194


14158500 MCKENZIE RIVER AT OUTLET OF CLEAR LAKE, OR

LOCATION. Lat 44°21'40", long 121°59'40", in SE 1/4 sec.8, T.14 S., R.7 E., Linn County, Hydrologic Unit17090004, Willamette National Forest, on west bank of Clear Lake in narrow channel, 150 ft upstream from outlet and at mile 89.6.

DRAINAGE AREA.--92.4 mi2 , hydrologic drainage boundary uncertain owing to ground-water exchange.

PERIOD OF RECORD. June 1912 to September 1915, October 1947 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS. WSP 1288: 1949. WSP 1318: 1915(M). WSP 1738: Drainage area.

GAGE.--Water-stage recorder. Datum of gage is 3,015.32 ft above National Geodetic Vertical Datum of 1929 (levels by Eugene Water and Electric Board). June 20, 1912, to July 31, 1915, nonrecording gage at site 1.0 mi north at different datum.

REMARKS. Flow regulated by natural storage in lake. At high stages an undetermined flow enters numerous sinkholes in lava rock along south edge of lake upstream from station.


EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,300 ftVs Dec. 23, 1964, gage height, 8.15 ft; minimum discharge, 137 ft 3/s Sept. 23, 1977, Nov. 4, 1980.





1 37

14306090

120183

DISCHARGE, IN FT 3/S, FOR INDICATED RECURRENCE


n

41 4141414141414141

250%

213 214215218226240254272318

520%

176 177178180186196206219259

1010%

159 160161163168176184195234

205%

146 147148149154160168177216

502%

132133134135139144151159198

1001%

124 125125126130135140148187



1 37

15306090



n

43 434343434343

250%

1350 124011201020904778712

520%

1840 1640145012501090934841

1010%

2160 19001650139011901020908

254%

2570 22301910154013001110976

502%

2880 247021001650137011601020

1001%

3190 270022801750143012201060



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n = historical n Weighted skew = --

195


14158790 SMITH RIVER ABOVE SMITH RIVER RESERVOIR, NEAR BELKNAP SPRINGS, OR

LOCATION. Lat 44°20'05", long 122°02'45«, in SW 1/4 SW 1/4 sec.24, T.14 S., R.6 E., Linn County, Hydrologic Unit 17090004, in Willamette National Forest, on right bank 200 ft upstream from Smith River Reservoir, 0.7 mi downstream from Browder Creek, 10 mi north of town of Belknap Springs, and at mile 4.4.



REVISED RECORDS.--WDR OR 80-2: 1978(P).

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 2,610.00 ft above National Geodetic Vertical Datum of 1929 (levels by Eugene Water and Electric Board). Prior to Sept. 10, 1964, at datum 1.56 ft higher.


AVERAGE DISCHARGE. 27 years, 91.0 ftVs, 76.28 in/yr, 65,930 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,160 ft 3 /s Dec. 22, 1964, gage height, 11.9 ft, from floodmark, from rating curve extended above 560 ft3 /s, on basis of slope-area measurement of peak flow; minimum discharge, 2.5 ftVs Sept. 15-18, 1980.





1 37

14306090

120183

n

26 2626262626262626


3 344457

250%

.9

.9

.0

.2

.7

.6

.01131

3 3333457

520%

.3

.3

.4

.5

.9

.6

.6

.721

1010%

3.0 3.03.13.33.64.35.06.516

205%

2.8 2.82.93.13.44.14.65.713

2 2223344

502%

.6

.6

.7

.9

.2

.9

.2

.910

100

2 2223.3448

1%

.5

.5

.6

.7

.1

.8

.0

.4

.8



1 37

15306090



n

27 272727272727

250%

788 626475350270208185

520%

1110 856624428324247218

1010%

1350 1010717474356268236

254%

1660 1210830525393292255

502%

1900 1360911561418308268

1001%

2160 1510990594443323279



1.25 80%

2 50%

5 20%

1010%

25 4%

50 2%

1001%

1900 2460 2950 3500


196


14158850 MCKENZIE RIVER BELOW TRAIL BRIDGE DAM, NEAR BELKNAP SPRINGS, OR

LOCATION. Lat 44°16'05", long 122°02'55", in T.15 S., R.6 E., (unsurveyed), Linn County, Hydrologic Unit17090004, in Willamette National Forest, on left bank 0.4 mi downstream from Trail Bridge Dam, 0.5 mi upstream from Anderson Creek, 5 mi north of town of Belknap Springs, and at mile 81.5.



GAGE. Water-stage recorder. Datum of gage is 1,980.00 ft above National Geodetic Vertical Datum of 1929 (levels by Eugene Water and Electric Board). Prior to Oct. 11, 1963, at datum 5.60 ft higher.

REMARKS. Flow regulated since 1963 by Smith River Reservoir (station 14158795). Diurnal fluctuations bypowerplants and by Trail Bridge reregulating reservoir upstream. Water is diverted from McKenzie River in SW 1/4 sec.20, T.14 S., R.7 E., to Smith River Reservoir and returned to river upstream from station.

AVERAGE DISCHARGE. 28 years, 1,027 ft 3 /s, 75.80 in/yr, 744,100 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 11,200 ft 3/s Dec. 22, 1964, gage height, 12.45 ft, from rating curve extended above 3,700 ft3 /s on basis of slope-area measurement of peak flow; minimum discharge, 185 ft3 /s

Feb. 3, 1963; minimum daily, 425 ft 3/s Nov. 23, 1964.





1 37

14306090

120183


n

23 2323232323232323

250%

581 595608625640657676701782

520%

519 536550565577590605623688

1010%

487 508524538548560572587646

205%

462 486505518527537547560615

502%

434 463486498504513521531582

1001%



1 37

15306090



n

24 242424242424

250%

2710 244021401880167014701380

520%

3900 344028902380201017401610

1010%

4770 420034402710223019001740

254%

5980 530042003130249020901900

502%

6960 621048203450267022302010

1001%

_



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

197


14159000 MCKENZIE RIVER AT MCKENZIE BRIDGE, OR

LOCATION.~Lat 44"10'45", long 122°07'45«, on line between NE 1/4 and NW 1/4 sec.18, T.16 S., R.6 E., Lane County, Hydrologic Unit 17090004, Willamette National Forest, on left bank 1.0 mi upstream from Glen Creek, 1.7 mi east of town of McKenzie Bridge, and at mile 69.9.

DRAINAGE AREA.--348 mi at cableway 1.2 mi upstream, where all discharge measurements are made.

PERIOD OF RECORD. August 1910 to 1987. Monthly discharge only for some periods, published in WSP 1318. Published as "near McKenzie Bridge" August 1910 to September 1911 and October 1914 to September 1916.

REVISED RECORDS. WSP 1248: 1911-16, 1920-25. WSP 1448: 1919. WSP 1638: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 1,419.04 ft above National Geodetic Vertical Datum of 1929. Prior to June 2, 1932, nonrecording gage at several sites within 2 mi of present site at various datums.

REMARKS. Flow regulated since March 1963 by Smith River Reservoir (Carmen-Smith Project) 12 mi upstream (station 14158795). No diversion upstream from station. All records given herein are for measuring site.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 19,100 ftVs Dec. 22, 1964, gage height, 10.36 ft, from rating curve extended above 7,100 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 805 ft /s Oct. 20, 1931.





1 37

14306090

120183


n

51 5151515151515151

250%

1040 10401040105010701100113011701290

520%

927 929932939952971993

10201110

1010%

872 873876883893907926952

1020

205%

827 828831837845857873897960

502%

778 779782787793803816838893

1001%

746 747750755759769780800851



1 37

15306090



n

52 525252525252

250%

5280 452038303240279024602280

520%

7370 615049303990332028702630

1010%

8740 719055804410361030802810

254%

10500 848063304890391033203010

502%

11700 942068505200411034603130

1001%

13000 1030073405500429035903240



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

14000 18100


198


14159000 MCKENZIE RIVER AT MCKENZIE BRIDGE, OR~Continued





1 37

14306090

120183


n

23 2323232323232323

250%

1000 10201030105010701090112011601300

520%

924 936947965985

1000103010601160

1010%

891 902912930947964983

10101110

205%

867 877888904919935951974

1060

502%

842 852863877890904918938

1020

1001%

__ -



1 37

15306090



n

24 242424242424

250%

5680 487040803440293025402390

520%

8040 692055204360356030302810

1010%

9560 834064804930394033303060

254%

11400 1020077105620439036903360

502%

12800 1160086306110471039403570

1001%




1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%


historical n

199


14159200 SOUTH FORK MCKENZIE RIVER ABOVE COUGAR LAKE, NEAR RAINBOW, OR

LOCATION.--Lat 44°02'50", long 122°13'00", in T.17 S., R.5 E. f (unsurveyed), Lane County, Hydrologic Unit17090004, in Willamette National Forest, on right bank 100 ft upstream from Tipsoo Creek, 8.0 mi south of Rainbow, 9.0 mi southeast of town of Blue River, and at mile 10.4.

DRAINAGE AREA. 160 mi2 at cableway 0.2 mi downstream, where all discharge measurements are made.

PERIOD OF RECORD. October 1957 to September 1987 (discontinued). Prior to October 1971, published as South Fork McKenzie River above Cougar Reservoir.

REVISED RECORDS. WSP 1638: Drainage area. WSP 1935: 1958(M).

GAGE. Water-stage recorder. Datum of gage is 1,709.51 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark).

REMARKS. No regulation or diversion upstream from station. All records given herein are for measuring site.


EXTREMES FOR PF.RIOD OF RECORD. Maximum discharge, 18,400 ft 3/s Dec. 22, 1964, gage height, 20.06 ft, from floodmark, from rating curve extended above 7, 600 ftVs, on basis of slope-area measurement of peak flow; minimum discharge, 171 ft 3/s Sept. 16, 17, 1981.





1 37

14306090

120183


n

29 2929292929292929

250%

207 208209212217226235249338

520%

192 193194196201209217227290

1010%

185 185186189193201209218270

205%

179 180180183187194203212257

502%

172 173174176181188196206244

1001%

168 169169172176183191203237



1 37

15306090



n

30 303030303030

250%

4030 309023401790142011601070

520%

6120 481034302410184014601320

1010%

7570 619042602860213016701480

254%

9470 826054703480253019301680

502%

10900 1010064903960285021401830

1001%

12400 1210076004480318023501970



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


200


14159500 SOUTH FORK MCKENZIE RIVER NEAR RAINBOW, OR

LOCATION. Lat 44°08'10", long 122°14'50", in NE 1/4 sec.31, T.16 S., R.5 E., Lane County, Hydrologlc Unit17090004, in Wlllamette National Forest, on right bank 0.2 ml upstream from Cougar Creek, 0.6 ml downstream from Cougar Dam, 2.1 ml south of Rainbow, and at mile 3.9.

DRAINAGE AREA. 208 ml 2 .



GAGE. Water-stage recorder. Datum of gage Is 1,236.42 ft above National Geodetic Vertical Datum of 1929 (Federal Highway Administration bench mark). Oct. 1 to Nov. 4, 1947, nonrecordlng gage at site 40 ft upstream at datum 0.80 ft higher.

REMARKS. Flow regulated since 1963 by Cougar Lake (station 14159400), usable capacity, 165,000 acre-ft. No diversion upstream from station.

AVERAGE DISCHARGE. 40 years, 863 ft 3 /s, 56.34 in/yr, 625,200 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 17,600 ft 3/s Dec. 11, 1956, gage height, 8.66 ft, from rating curve extended above 8,100 ft 3 /s; maximum gage height, 8.90 ft Dec. 22, 1955 (backwater from debris); minimum discharge, 17 ftVs Nov. 18, 1965; minimum daily, 85 ft 3 /s Apr. 26-28, 1977.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum discharge, 24,500 ft 3/s Dec. 28, 1945, gage height, 8.8 ft, fromfloodmarks, at Corps of Engineers gage at site 40 ft upstream at datum 0.80 ft higher; gage height at present site and datum, about 9.3 ft, computed by Corps of Engineers.





1 37

14306090

120183


n

14 1414141414141414

250%

233 235238241248261277298447

520%

214 216218221229242254267364

1010%

206 207209212221234244255333

205%

199200201205214227237246313

50 1002% 1%




1 37

15306090



n

15 151515151515

250%

6950 538037902740224018301660

520%

10500 748049103460283022101940

1010%

13000 883056303940324024602120

254%

16100 1050065104540378027702340

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

9370 19300


201


14159500 SOUTH FORK MCKENZIE RIVER NEAR RAINBOW, OR Continued





1 37

14306090

120183


n

23 2323232323232323

250%

177 206236247279342448477587

520%

126 145164172186224309338468

1010%

104 117129135142174245275414

205%

88 96

104108111138199230374

502%

72 75788080

105154185332

1001%



1 37

15306090



n

24 242424242424

250%

4600 423034102550194015101340

520%

5480 530045403530257020001770

1010%

5720 569051004150300023602060

254%

5860 597056504920355028602440

502%

5900 610059705490397032602740

1001%

_ --



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

202


14161100 BLUE RIVER BELOW TIDBITS CREEK, NEAR BLUE RIVER, OR

LOCATION. Lat 440 13'05", long 122°15'50", in SE 1/4 NE 1/4 sec.36, T.15 S., R.4 E., Lane County, Hydrologic Unit 17090004, in Willamette National Forest, on left bank 0.2 mi downstream from Tidbits Creek, 5.5 mi northeast of town of Blue River, and at mile 8.5.


PERIOD OF RECORD. September 1963 to 1987.




EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 12,400 ft 3 /s Dec. 22, 1964, gage height, 15.32 ft, from floodmarks, from rating curve extended above 2,800 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 7.1 ft 3/s Sept. 9, 23-25, 30, 1987.





1 37

14306090

120183



n

23 2323232323232323

250%

12 1212131417223069

520%

9.9 1010111214172250

1010%

9.1 9.29.49.91113151942

205%

8.68.78.99.31012141736

502%

8.1 8.28.38.79.611121531

1001%




1 31

15306090



n

23 232323232323

250%

3080 230016301110829628559

520%

4570 3370228014801090824720

1010%

5590 4100268016901240952824

254%

6890 50203160193014101110953

502%

7870 572034902090153012301050

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2900 5970 7470 9630 11500

Systematic n = 24 historical n = Weighted skew = 0.500

203


14161500 LOOKOUT CREEK NEAR BLUE RIVER, OR

LOCATION. Lat 44°12'35", long 122°15'20", in T.15 or 16 S., R.5 E. <unsurveyed), Lane County, Hydrologic Unit17090004, in Willamette National Forest, on left bank 6.0 mi northeast of town of Blue River, and at mile 0.5.


PERIOD OF RECORD. August 1949 to September 1955, September 1963 to 1987.

GAGE. Water-stage recorder. Datum of gage is 1,377.76 ft above National Geodetic Vertical Datum of 1929 <Corps of Engineers bench mark.) .


AVERAGE DISCHARGE. 30 years, 125 ft 3/s, 70.44 in/yr, 90,560 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,660 ft 3/s Dec. 22, 1964, gage height, 8.88 ft, from rating curve extended above 1,300 ft 3 /s, on basis of slope-area measurement of peak flow; minimum discharge, 4.8 ft 3/s

Sept. 16, 17, 1981.





1 37

14306090

120183


n

28 2828282828282828

250%

9.4 9.59.8101113151836

520%

7.6 7.77.98.49.211121527

1010%

6.8 6.97.07.58.39.6111424

205%

6.1 6.26.36.87.68.8101321

502%

5.4 5.55.66.06.88.09.31219

1001%

5.0 5.05.15.56.47.58.71118



1 37

15306090



n

30 303030303030

250%

1360 1010715503388297270

520%

2040 15101020684518386342

1010%

2470 18301220794597441384

254%

2980 22401460923691507431

502%

3330 254016401010757553464

1001%

3670 284018101100820598493



T725 2 5 10 25 50 TOO 80% 50% 20% 10% 4% 2% 1%

1180170025903300435052506250


204


14162000 BLUE RIVER NEAR BLUE RIVER, OR

LOCATION.~Lat 44°10'55«, long 122°16'45", in NW 1/4 sec.13, T.16 S., R.4 E., Lane County, Hydrologic Unit17090004, on right bank 2.5 mi downstream from Lookout Creek, 3.3 mi upstream from Quartz Creek, 3.5 mi northeast of town of Blue River, at at mile 5.1.


PERIOD OF RECORD. September 1935 to September 1964. Monthly discharge only September 1935, published in WSP 1318.



AVERAGE DISCHARGE. 29 years (water years 1936-64), 393 ftVs, 284,500 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 13,300 ft 3/s Dec. 28, 1945, gage height, 9.80 ft, from rating curve extended above 7,400 ft 3 /s; minimum discharge, 11 ft 3 /s Aug. 21, 22, 1961.





1 37

14306090

120183


n

28 2828282828282828

250%

20 20212225303648

113

520%

161717182024273476

1010%

15 1516171821242862

205%

14 1415161719212553

502%

13 1314151617192144

1001%

13 1313141516171939



1 37

15306090



n

29 292929292929

250%

4380 3260222015501200938855

520%

6360 452029502050159012001050

1010%

7760 537033902360181013501160

254%

9630 645039102740207015301260

502%

11100 727042603010225016401330

1001%

12600 811046003270242017501390



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

5740 13700


205


14162200 BLUE RIVER AT BLUE RIVER, OR

LOCATION. Lat 44°09'45", long 122°19'55", in NW 1/4 SE 1/4 sec.21, T.16 S., R.4 E., Lane County, Hydrologic Unit 17090004, on right bank 0.3 mi upstream from Simmonds Creek, 0.7 mi north of town of Blue River, 0.8 mi downstream from Blue River Dam, and at mile 0.9.


PERIOD OF RECORD. February 1966 to 1987.

GAGE. Water-stage recorder. Datum of gage is 1,056.53 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark). Prior to Aug. 25, 1966, nonrecording gage at datum 0.80 ft higher.

REMARKS. Flow regulated since October 1968 by Blue River Lake (station 14162100). No diversion upstream from station. Discharge not adjusted for storage or release from Blue River Lake as losses from reservoir at times exceed natural flow.

AVERAGE DISCHARGE. 21 years, 466 ft 3 /s, 337,600 acre-ft/yr, unadjusted.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,270 ft 3/s Feb. 23, 1968, gage height, 8.93 ft; minimum discharge, 0.80 ftVs Oct. 8, 10, 11, 1968; minimum daily, 3.7 ft 3 /s Oct. 8, 1968.





1 37

14306090

120183


n

18 1818181818181818

250%

31 33354357

127200286312

520%

19 2020253064

109187232

1010%

14 141418204273

130180

205%

10 10111314284989

137

50 1002% 1%





1 37

15306090



n

1919191919

250%

::2720209015301150973

520%

31402400188014601230

1010%

::32102470203016301350

254%

::32402510216018101490

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


206


14162500 MCKENZIE RIVER NEAR VIDA, OR

LOCATION. Lat 44°07'30", long 122°28'10", in NE 1/4 NE 1/4 sec.5, T.17 S., R.3 E., Lane County, Hydrologic Unit 17090004, on right bank 0.4 mi downstream from Mason Creek, 5.4 mi east of Vida, and at mile 47.7.

DRAINAGE AREA. 930 mi at cableway 0.4 mi downstream, where all discharge measurement are made.

PERIOD OF RECORD. July 1910 to March 1911 (published as "at Martins Rapids, near Vida"), September 1924 to 1987. Monthly discharge only for some periods, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 855.71 ft above National Geodetic Vertical Datum of 1929 (levels by Eugene Water and Electric Board). July 1, 1910, to Mar. 31, 1911, nonrecording gage at site 3 mi downstream at different datum. Sept. 1, 1924, to Nov. 16, 1928, nonrecording gage at site 20 ft upstream at datum 0.15 ft lower. Nov. 17, 1928, to Sept. 23, 1968, water-stage recorder at present site on left bank at datum 0.15 ft lower.

REMARKS. Flow regulated since 1963 by Smith River Reservoir (station 14158795) and Cougar Lake (station 14159400), and since 1968 by Blue River Lake (station 14162100). No diversion upstream from station. All records given herein are for measuring site.

AVERAGE DISCHARGE.--63 years (water years 1925-87), 4,051 ft 3 /s, 2,935,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 64,400 ft 3/s Dec. 28, 1945, gage height, 17.70 ft, site and datum then in use, from rating curve extended above 32,000 ft 3 /s; minimum discharge, 1,260 ft 3 /s Nov. 7, 1930,

Sept. 17, Oct. 4, 8, 9, 1931.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood in January 1923 reached a stage of 17.2 ft, from floodmarks, discharge, 62,000 ft /s.





1 37

14306090

120183


n

37 3737373737373737

250%

1560 15701580160016401700177018802330

520%

1390 14001400142014501490153016101900

1010%

1310 13201320134013601390142014801710

205%

1250 12601260127012901320134013901580

502%

1190 11901200120012101240126013001450

1001%

1150 11501160116011701190120012401360



1 37

15306090



n

38 383838383838

250%

24200 190001430010800869072206620

520%

33600 2590018500137001080088507960

1010%

39300 3020020900153001210098108700

254%

46000 35300235001700013500109009500

502%

50600 389002530018200144001170010000

1001%

55000 424002690019300153001240010500



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

20300 29200


207


14163000 GATE CREEK AT VIDA, OR

LOCATION. Lat 44°08'45«, long 122°34'15«, in SW 1/4 sec.28, T.16 S., R.2 E., Lane County, Hydrologic Unit 17090004, on right bank 300 ft downstream from bridge on State Highway 126, at Vida, and at mile 0.2.


PERIOD OF RECORD. June 1951 to September 1957; annual maximums, water years 1958-65; August 1966 to 1987.

REVISED RECORDS.--WDR OR-83-2: 1976(M,P), 1978(M,P), 1979(M,P), 1980(M), 1981(M,P), 1982(M,P).

GAGE. Water-stage recorder. Datum of gage is 764.56 ft above National Geodetic Vertical Datum of 1929.June 11, 1951, to Sept. 30, 1957, water-stage recorder, and Oct. 1, 1957, to Aug. 1, 1966, crest-stage gage at same site and datum.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,140 ft 3 /s Dec. 22, 1964, gage height, 12.18 ft, from slope-area measurement of peak, flow; minimum discharge, 12 ft 3 /s Nov. 26, 27, 1952, Sept. 6, 7, 23, 1987.





1 37

14306090

120183


n

252525252525252525

250%

17 1818192124283459

520%

15 1515161820232746

1010%

14 1414151619212441

205%

13 1313141517192237

502%

12 1212131416182033

1001%

11 1111121315171931



1 37

15306090



n

27 272727272727

250%

2080 16301200832662522463

520%

2850 219015201070844665586

1010%

3300 249016801200946746658

254%

3790 2800183013501060837742

502%

4120 3000191014401130896799

1001%

4410 3170198015301200951852



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1970 2890 6630 7700 8810


208


14165000 MOHAWK RIVER NEAR SPRINGFIELD, OR

LOCATION.--Lat 44°05'34", long 122°57'20", in SE 1/4 NW 1/4 sec.17, T.17 S. f R.2 W., Lane County, Hydrologlc Unit 17090004, on left bank 50 ft downstream from bridge, 1.3 mi northeast of Springfield, and at mile 1.59.


PERIOD OF RECORD. September 1935 to September 1952, October 1963 to 1987. Prior to October 1935 monthly discharge only, published in WSP 1318.

REVISED RECORDS.--WSP 1248: 1939. WSP 1738: Drainage area. WDR OR-86-2: 1985(m).

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 442.47 ft above National Geodetic Vertical Datum of 1929. Oct. 1, 1935, to Sept. 30, 1952, nonrecording gage at same site and datum.

REMARKS. Many diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 13,000 ft 3/s Dec. 22, 1964, gage height, 22.60 ft; minimum discharge, 8.2 ft 3/s Sept. 9, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Dec. 22, 1955, reached at stage of 22.9 ft, from floodmark, probably affected by backwater from McKenzie River, discharge, 9,200 ft /s.





1 37

14306090

120183


n

39 3939393939393939

250%

202122242733394899

520%

15 1516182024283670

1010%

12 1314151721253159

205%

11 1112131518222851

502%

9.2 9.911121316192544

1001%

8.3 8.99.5111214182340



1 37

15306090

DISCHARGE, IN FT*/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

41 414141414141

250%

5530 447033902510193015101330

520%

7730 621045503260240019101690

1010%

8840 711051503640261020901860

254%

9920 800057704020280022702020

502%

10600 853061404240290023702120

1001%

11100 897064604430297024502200



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

4260 6180 10400 13700


209


14165500 MCKENZIE RIVER NEAR COBURG, OR

LOCATION.~Lat 44°06'45", long 123°02'45", in NW 1/4 NE 1/4 sec.9, T.17 S., R.3 W., Lane County, Hydrologic Unit 17090004, on left bank at downstream side of Armitage Bridge, 2 mi southeast of Coburg, and at mile 7.1.



GAGE. Water-stage recorder. Datum of gage is 392.32 ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 24, 1944, nonrecording gage at same site at datum 4.00 ft higher. Nov. 25, 1944, to Feb. 28, 1965, water-stage recorder at same site at datum 4.00 ft higher.

REMARKS.-Flow regulated since 1963 by Smith River Reservoir and Cougar Lake, and since 1968 by Blue River Lake. Slight diurnal fluctuation caused by logponds and powerplants upstream. Water supply for city of Eugene is diverted 10 mi upstream; small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 28 years, 5,916 ft 3 /s, 60.09 in/yr, 4,286,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 88,200 ftVs Dec. 29, 1945, gage height, 21.36 ft, from rating curve extended above 59,000 ft 3 /s; minimum, 1,080 ftVs Aug. 19, 1966.





1 37

14306090

120183


n

17 1717171717171717

250%

1800 18401850189019402020213023003070

520%

1620 16501670170017401820190020302690

1010%

1540 15601570160016401710178019102540

205%

1470 14901500152015601630170018102430

50 1002% 1%



1 37

15306090



n

18 181818181818

250%

43500 340002440018100144001160010700

520%

57900 447003060022200177001400012500

1010%

66500 515003430024600199001560013600

254%

76700 599003870027200226001760015000

50 1002% 1%

:: :: -MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

36300 49500 99400

Systematic n « 19 historical r Generalized 17b skew = 0.182

210


14166000 WILLAMETTE RIVER AT HARRISBURG, OR

LOCATION. Lat 44°16'14", long 123°10'21", in NW 1/4 NE 1/4 sec.16, T.15 S., R.4 W., Linn County, Hydrologic Unit 17090003, on right bank 75 ft north of intersection of First Street and Kesling Street in Harrisburg and at mile 161.0.


PERIOD OF RECORD. October 1944 to 1987. Gage-height records collected at same site in 1927-28, 1931, 1934, are contained in reports of National Weather Service.

GAGE. Water-stage recorder. Datum of gage is 288.39 ft above National Geodetic Vertical Datum of 1929. Oct 1 to Nov. 14, 1944, nonrecording gage at bridge 1,110 ft upstream at different datum. Nov. 15, 1944, to Aug. 15, 1973, at site 1,100 ft upstream at datum 2.00 ft higher.

REMARKS. Flow regulated by 8 reservoirs upstream from station. Many small diversions upstream from station for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 210,000 ft 3/s Dec. 29, 1945, gage height, 19.69 ft, from rating curve extended above 115,000 ft 3 /s; minimum discharge, 1,990 ftVs Oct. 30, 1944.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood stage of 20.5 ft was reached In December 1861, and 20.1 ft inFebruary 1890 (information from Corps of Engineers). Flood of Jan. 1, 1943, reached a stage of 19.1 ft from National Weather Service.





1 37

14306090

120183


n

18 1818181818181818

250%

4320 44104510460047204950536058206720

520%

3680 37403800387040104240453049605730

1010%

3250 33003350343035903870411045305270

205%

2880 29102970306032403580376041904930

50 1002% 1%




1 37

15306090



n

19 191919191919

250%

55400 498004590040000335002670023400

520%

64700 578005250046300392003300029000

1010%

66600 594005360047600405003520030900

254%

67400 600005400048100411003670032200

502%

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


211


14166500 LONG TOM RIVER NEAR NOTI, OR

LOCATION. -Lat 44 003'00", long 123°25'30", in SE 1/4 NW 1/4 sec.33, T.17 S. f R.6 W. f Lane County, Hydrologic Unit 17090003, on left bank 0.2 mi upstream from Southern Pacific Railroad bridge, 0.8 mi downstream from Noti Creek, 1.3 mi southeast of Noti, and at mile 37.4.



REVISED RECORDS.--WSP 1318: 1936(M). WSP 1738: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 389.05 ft above National Geodetic Vertical Datum of 1929 (levels by National Weather Service). Prior to Nov. 6, 1940, nonrecording gage at same site and datum.

REMARKS. Slight regulation caused by logpond upstream from Noti. No diversion upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,990 ft 3 /s Dec. 22, 1955, gage height, 20.17 ft; minimum discharge, 0.04 ft 3 /s Aug. 13, 1977.




[Short-duration statistics uncertain due to excessive zero events]


1 37

14306090

120183


n

:: 3232323232

250%

1314162036

520%

7 .99.8121527

1010%

5.27.79.91323

205%

3.46.18.21120

502%

1.94.66.68.718

1001%

1.23.85.77.516



1 37

15306090



n

52 525252525252

250%

2820 225016201170894700615

520%

4050 3190226015801160904801

1010%

4750 37302630180012901000889

254%

5520 43203040204014201090970

502%

6000 470033202180150011501010

1001%

6440 504035602310156011901050



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3110 5580 6740


212


14167000 COYOTE CREEK NEAR CROW, OR

LOCATION. Lat 44°01'19", long 123°15'17", in SW 1/4 NE 1/4 sec.11, T.18 S., R.5 W., Lane County, Hydrologic Unit 17090003, on right bank 1.0 mi downstream from Spencer Creek, 4.3 mi northeast of Crow, and at mile 3.8.


PERIOD OF RECORD. July 1940 to September 1987.


GAGE. Water-stage recorder and concrete control. Datum of gage is 374.0 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark). Prior to Aug. 31, 1940, nonrecording gage near same site at different datums.

REMARKS. No regulation. Several small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 10,600 ft 3/s Feb. 10, 1961, gage height, 14.43 ft, from rating curve extended above 4,700 ft 3 /s; no flow at times most years.






1 37

14306090

120183


n

*

32323232

250%

__

0.30.51.36.8

520%

__

0.00.10.53.7

1010%

:: 0.00.00.32.7

205%

__

0.00.00.12.1

502%

__

0.00.00.01.5

1001%

0.00.00.01.3



1 37

15306090



n

47 474747474747

250%

3350 253017201170845660554

520%

5420 3890256016701150854716

1010%

6590 4620301019301270919769

254%

7830 5330348021701380962804

502%

8580 5750376023101430978816

1001%

9210 6090399024301470987824



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

4030 7380 9810 13000 15400 17800


213


14169001 LONG TOM RIVER NEAR ALVADORE, OR

LOCATION.~Lat 44°07'25«, long 123°17'55", in SW 1/4 NE 1/4 sec.4, T.17 S., R.5 W., Lane County, Hydrologic Unit 17090003, on left bank 0.2 mi downstream from Fern Ridge Dam, 1.7 mi west of Alvadore, and at mile 25.5.

DRAINAGE AREA. 252 mi 2 , not including Amazon Creek basin.

PERIOD OF RECORD.--August 1939 to 1985. Prior to October 1943, published as "at Smithfield, " and October 1943 to September 1959, as "below Fern Ridge Dam, near Smithfield."

REVISED RECORDS. WSP 1248: 1940-41, 1948.

GAGE. Water-stage recorder and masonry control. Datum of gage is 332.00 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). Prior to Sept. 21, 1939, nonrecording gage and Sept. 21, 1939, to Sept. 30, 1943, water-stage recorder at site 2.5 mi downstream at datum 11.09 ft lower.

REMARKS. Flow regulated since 1941 by Fern Ridge Lake (station 14168000). Several small diversions for irrigation upstream from station. Records include diversion to Coyote Creek Channel. Point of diversion is 500 ft upstream and point of return, 2.3 mi downstream. Discharge not adjusted for storage or release from Fern Ridge Lake as evaporation from reservoir at times exceeds natural flow and diversions, and beginning in November 1951, most of flow of Amazon Creek has been diverted into Fern Ridge Lake.

COOPERATION. Gage-height record for Coyote Creek diversion furnished by Corps of Engineers.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 11,500 ft 3/s Jan. 1, 1943, gage height, 15.12 ft, site and datum then in use; minimum daily discharge, 2 ft 3/s Aug. 7, 1941.





1 37

14306090

120183


n

24 2424242424242424

250%

252832353842434790

520%

14 1518202125303557

1010%

8.7 9.811121317242945

205%

5.6 6.26.97.47.912192538

502%

3.1 3.33.63.74.07.4152131

1001%




1 37

15306090



n

25 252525252525

250%

4240 406035702690199015401320

520%

5180 506047103760275021301800

1010%

5540 546053004440327024902070

254%

5810 578059005270395029202360

502%

5930 593062605870446032202550

1001%

6010 604065606450498035102720



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


214


14169300 AMAZON CREEK AT EUGENE, OR

LOCATION.~Lat 44°00'45-, long 123°04'35", in SW 1/4 SE 1/4 sec.8, T.18 S., R.3 W., Lane County, Hydrologic Unit 17090003, on right bank 145 ft south of intersection of 39th Street and E. Amazon Drive in Eugene, and at mile 20.3.



GAGE. Hater-stage recorder and concrete control. Datum of gage is 442.33 ft above National Geodetic Vertical Datum of 1929.


AVERAGE DISCHARGE. 13 years, 5.24 ft3/s, 21.24 in/yr, 3,800 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 527 ft 3/s Jan. 19, 1964, gage height, 7.29 ft; no flow at times.





1 37

14306090

120183

INTERVAL,FT3/S, FORIN YEARS,



n

12 1212121212121212

250%

0.0 0.10.10.10.20.20.20.30.4

520%

0.0 0.00.00.00.10.10.20.20.3

1010%

0.0 0.00.00.00.00.10.10.10.2

205%

__

502%

_

1001%



1 37

15306090



n

13 131313131313

250%

126 865835231815

520%

192 1308350312320

1010%

2281549659362622

25 50 1004% 2% 1%

.. __



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

268

Systematic n - 13 historical n - 0 Generalized 17b skew - 0.170

215


14170000 LONG TOM RIVER AT MONROE, OR

LOCATION.~Lat 44°18'50", long 123°1T45", in NE 1/4 sec.33, T.14 S., R.5 W., Benton County, Hydrologic Unit17090003, on left bank in canalized river channel at Monroe, 110 ft upstream from bridge on State Highway 99W, 0.1 mi downstream from Shafer Creek, and at mile 6.8.


PERIOD OF RECORD. November 1920 to July 1921, October 1921 to April 1926, November 1926 to May 1927, October 1927 to 1987. Prior to October 1930, published as "near Monroe."

REVISED RECORDS.--WSP 654: Drainage area. WSP 1248: 1923, 1927, 1928(M). WSP 1288: 1952.

GAGE. Water-stage recorder and concrete control. Datum of gage is 270.57 ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 24, 1944, nonrecording gage at various sites ranging from present site to 1.5 mi downstream at different daturns.

REMARKS. Flow regulated since 1941 by Fern Ridge Lake (station 14168000). Several small diversions upstream from station.

AVERAGE DISCHARGE. 64 years (water years 1922-25, 1928-87), 770 ft 3/s, 557,900 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 19,300 ft 3/s Jan. 2, 1943, gage height, 17.14 ft, site and datum then in use, from graph based on gage readings, includes some overflow from Willamette River near Junction City; no flow Oct. 20-22, 1944 (water filling pool at gage); minimum discharge observed prior to regulation, 7 ft /s Sept. 29, Oct. 1, 1939.





1 37

14306090

120183


n

12 1212121212121212

250%

14 1415151718202450

520%

10 1111121314161935

10 2010% 5%

8.8 9.310111213141730

50 1002% 1%

__ __ -- --



1 37

15306090



n

13 131313131313

250%

7310 648052704050298022801910

520%

10400 917069205140369028302470

1010%

12600 1130080505800408031202800

25 50 1004% 2% 1%

--



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

5680 12800 16000 20200 23600


216


14170000 LONG TOM RIVER AT MONROE, OR Continued






1 37

14306090

120183


n

45454545454545

250%

313335394353

152

520%

22242729334098

1010%

::17202225293576

205%

-

14171922263261

502%

10141619243047

1001%

8.4121417232940



1 37

15306090



n

46 464646464646

250%

5770 521046603990316024502090

520%

7510 675060005300431033802880

1010%

8420 756066906020503039203320

254%

9370 840073906790587045403770

502%

9960 892078107290647049604060

1001%

10500 936081707720703053404310



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n =

217


14170500 ROCK CREEK NEAR PHILOMATH, OR

LOCATION. Lat 44°30'05", long 123°26'20, in SW 1/4 NE 1/4 sec.29, T.12 S., R.6 W., Benton County, Hydrologic Unit 17090003, on left bank 600 ft upstream from bridge on State Highway 34, 4.5 ml southwest of Philomath, and at mile 0.4.

DRAINAGE AREA. 14.6 ml 2 .

PERIOD OF RECORD. October 1945 to September 1952, water years 1953-60 (annual maximum), October 1974 to September 1979.

GAGE. Water-stage recorder. Datum of gage Is 349.08 ft above National Geodetic Vertical Datum of 1929. Prior to October 1974, at site 0.2 mi downstream at datum 5.08 ft higher.

REMARKS. Flow regulated by small storage reservoir operated by city of Corvallis, most low-water flow diverted to city of Corvallis water supply system.

AVERAGE DISCHARGE.--12 years, 51.2 ft3/s, 47.62 in/yr, 37,090 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,190 ft 3/s Dec. 21, 1955, gage height, 6.82 ft, at site and datum then in use, from rating curve extended above 810 ft /s, on basis of slope-area measurement of peak flow; maximum gage height, 13.17 ft Dec. 15, 1977; minimum discharge, 0.2 ft 3/s Aug 24, 1946, for several days in summers of 1949 and 1950, Sept. 1-3, 1952.





1 37

14306090

120183


n

10 1010101010101010

250%

0.7 0.70.80.81.01.42.03.17.7

0 00000125

520%

.3

.3

.4

.4

.5

.8

.3

.3

.3

10 2010% 5%

0.2 0.20.30.30.40.61.11.94.2

50 1002% 1%

-



1 37

15306090



n

12 121212121212

250%

609 460326248192153142

520%

772 587420309227183174

1010%

860 659480343241193184

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

702 987 1430 1750 2180 2540


218


14171000 MARYS RIVER NEAR PHILOMATH, OR

LOCATION. Lat 44°31'35", long 123°20'00", in NE 1/4 SE 1/4 sec.18, T.12 S., R.5 W., Benton County, Hydrologic Unit 17090003, on left bank 50 ft downstream from bridge on Bellfountain Road, 0.6 mi downstream from Newton Creek, 2.0 mi southeast of Philomath, and at mile 9.4.

DRAINAGE AREA. 159 mi2 , including drainage area of Evergreen Creek upstream from Bellfountain Road, 1.4 mi south of station.


GAGE. Water-stage recorder. Datum of gage is 224.01 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). Prior to Oct. 1, 1961, nonrecording gage at bridge 50 ft upstream at same datum.

REMARKS. Records include flow of Evergreen Creek at Bellfountain Road crossing 1.4 mi south of station, with which overflow from Marys River may at times be mingled. Slight regulation by small storage reservoir on Rock Creek from which municipal supply is diverted for city of Corvallis. Other small diversions upstream from station for irrigation.

AVERAGE DISCHARGE.--45 years, 462 ftVs, 39.46 in/yr, 334,700 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 13,600 ft 3/s Dec. 22, 1964, gage height, 20.72 ft; maximum gage height, 20.91 ft Jan. 15, 1974; minimum discharge, 0.60 ft 3/s Aug. 23, 1967.





1 37

14306090

120183

n

44 4444444444444444



250%

9.91011111315192555

520%

5.9 6.36.97.68.811141839

1010%

4.24.75.35.97.18.9111532

205%

3.1 3.64.24.85.97.59.81328

502%

2.1 2.63.13.74.76.28.21124

100

1 2234579

1%

.6

.0

.5

.0

.1

.4

.4

.621



1 37

15306090



n

45 454545454545

250%

5250 436032202320181014201260

520%

7260 597043303080230018301630

1010%

8390 689049503490251020201800

254%

9630 791056503940270022001950

502%

10400 858061004220281023002030

1001%

11200 918065104460288023802090



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

6200 10700 12800 14400 15800


219


14172000 CALAPOOIA RIVER AT HOLLEY, OR

LOCATION.~Lat 44°21'05-, long 122°47'10", in SE 1/4 sec.15, T.14 S. r R.I W., Linn County, Hydrologic Unit17090003, on right bank 200 ft downstream from bridge on State Highway 228, 0.3 mi southwest of Holley, 5.0 mi upstream from Brush Creek, and at mile 45.4.


PERIOD OF RECORD. September 1935 to 1987. Prior to October 1963, published as Calapooya River at Holley.

REVISED RECORDS.--WSP 1044: 1943. WSP 1218: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 527.58 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 7, 1963, nonrecording gage at present site and datum.

REMARKS. Slight regulation at times during low-water periods by small dam upstream. Diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 12,600 ft 3/s Dec. 22, 1964, gage height, 14.60 ft; maximum gage height, 15.30 ft Dec. 22, 1964 (backwater from debris); minimum discharge observed, 13 ftVs Sept. 8, 1940.





1 37

14306090

120183


n

51 5151515151515151

250%

25 25262730364254

112

520%

21 2122232529334081

1010%

19 1920212225293469

205%

17 1819192123263060

502%

15 1717181921232651

1001%

14 1616171819222446



1 37

15306090



n

52 525252525252

250%

4440 34702510182014201120984

520%

6390 488034002360179014101230

1010%

7690 579039402670198015801380

254%

9330 691045703020218017601540

502%

10500 772050103250231018801650

1001%

11700 851054303460242019901760



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

8000 11800 13300 14900


220


14173500 CALAPOOIA RIVER AT ALBANY, OR

LOCATION. Lat 44°37'15", long 123°07'40", in NW 1/4 sec.13, T.ll S., R.4 W., Linn County, Hydrologic Unit 17090003, near right bank on downstream side of bridge on Riverside Drive at Albany, 0.6 mi downstream from Oak Creek, and at mile 3.0.


PERIOD OF RECORD. October 1940 to September 1981. Prior to October 1963, published as "Calapooya River at Albany".

GAGE. Water-stage recorder. Datum of gage is 180.85 ft above National Geodetic Vertical Datum of 1929. Prior to May 11, 1962, nonrecording gage at same site and datum.

REMARKS. Higher flows are affected by backwater from Willamette River at times. Diurnal fluctuation caused by ponds at flourmills near Shedd. Diversions for irrigation upstream from station.

AVERAGE DISCHARGE.--41 years, 895 ft3 /s, 32.67 in/yr, 648,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge observed, 32,700 ft 3/s Dec. 22, 1955, gage height, 22.12 ft; maximum gage height, 25.5 ft Jan. 2, 1943, from graph based on gage readings (backwater from Willamette River); minimum discharge, 3.5 ft 3/s Sept. 7, 1967.





1 37

14306090

120183



n

40 4040404040404040

250%

13 19232428354256

133

520%

8.61417182126304094

1010%

6.61114161822263478

205%

5.2 9.112141519233066

502%

3.97.210121317202655

1001%

3.1 6.09.1101115192449



1 37

15306090



n

41 414141414141

250%

11300 935067704710357027402370

520%

17200 1340093406240451035503050

1010%

20900 15700107007010491039403380

254%

25200 18100122007760525043003690

502%

28100 19600131008200542045103870

1001%

30900 20900138008570555046704010



1.25 80%

250%

5 20%

10 10%

254%

50 2%

1001%

7370 12300 19800 25000 31700 36700 41800


221


14174000 WILLAMETTE RIVER AT ALBANY, OR

LOCATION.~Lat 44°38'20", long 123°06'20", in SW 1/4 sec.6, T.ll S., R.3 W., Linn County, Hydrologic Unit17090003, on right bank 5 ft upstream from bridge on U.S. Highway 20 (Ellsworth Street) in Albany, 0.2 mi downstream from Calapooia River, and at mile 119.31.


PERIOD OF RECORD. November 1878 to April 1888 (fragmentary), January to June 1892, November 1892 toSeptember 1894, December 1894 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS.--WSP 694: Drainage area. WSP 904: 1939. WSP 964: 1881, 1890, 1894, 1897, 1901, 1903, 1908, 1910, 1916, 1923, 1927, 1932(M). WSP 984: 1916. WSP 1248: 1895, 1902, 1907, 1915(M), 1917(M), 1918-19, 1934(M). WSP 1318 (monthly and annual figures only): 1894, 1897, 1901-3, 1907-8, 1910, 1916, 1918-19, 1923, 1927.

GAGE. Water-stage recorder. Datum of gage is 167.18 ft above National Geodetic Vertical Datum of 1929. Prior to Sept. 27, 1906, nonrecording gage at site 0.2 mi upstream at datum 5.00 ft higher. Sept. 27, 1906, to Nov. 12, 1934, nonrecording gage at site 300 ft upstream at datum 5.00 ft higher. Nov. 14, 1934, to Sept. 30, 1962, at datum 5.00 ft higher.

REMARKS. Flow regulated by nine reservoirs upstream from station. Albany power canal diverts water from South Santiam River at Lebanon and discharges into Calapooia River near mouth; small diversions for irrigation and municipal water supply.

AVERAGE DISCHARGE. 93 years (water years 1894, 1896-87), 14,480 ftVs, 40.63 in/yr, 10,490,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 266,000 ft 3/s Jan. 14, 1881, gage height, 37.8 ft, present datum; minimum discharge, 1,840 ft 3/s Sept. 1, 2, 1940.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Dec. 4, 1861, reached a stage of 41.0 ft, discharge, 340,000 ft 3 /s, from rating curve extended above 220,000 ft 3 /s. Flood of Feb. 4, 1890, reached a stage of 38.9 ft, discharge, 291,000 ft /s.





1 37

14306090

120183

DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EX CEEDANCE PROBABILITY, IN PERCENT

n

46 4646464646464646

250%

2600 26102630267027802940317034505070

520%

2270 22702290233024302540269028603950

1010%

2110 21202140218022702370248026203490

205%

1990 20002020208021602260233024503160

502%

1870 18801900197020402140218022902830

1001%

1790 18101820191019702070209021902640



1 37

15306090



n

46 464646464646

250%

98300 871006870051400394003140027500

520%

143200 1230009200066200490003860033600

1010%

174300 14640010590074500540004260036800

254%

215000 17540012190083800594004680040300

502%

246200 19650013280089900628004950042500

1001%

278100 21740014300095500657005200044400



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

72000 106300 160500 201000 257400 303200 352300


222


14174000 WILLAMETTE RIVER AT ALBANY, OR Continued





1 37

14306090

120183


n

18 1818181818181818

250%

4640 47204800488049905230566062007330

520%

3930 40004050412042604480478053106240

1010%

3490 35503600369038504110435048705750

205%

3110 31503220332035003820401045305390

50 1002% 1%

__ _ --



1 37

15306090



n

19 191919191919

250%

74900 709006350053700446003570031100

520%

90400 838007250061900515004380038700

1010%

94600 867007400063300527004630041100

254%

97000 881007450063900531004780042800

50 1002% 1%

_ _



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


223


14178000 NORTH SANTIAM RIVER BELOW BOULDER CREEK, NEAR DETROIT, OR

LOCATION. Lat 44°42'25", long 122°06'00", in SE 1/4 NW 1/4 sec.17, T.10 S., R.6 E., Marion County, Hydrologic Unit 17090005, on right bank 0.5 mi downstream from Boulder Creek, 3.0 mi southeast of Detroit, and at mile 70.7.


PERIOD OF RECORD. January 1907 to October 1909, October 1928 to 1987. Monthly discharge only January 1907, published in WSP 1318. Prior to October 1952, published as "at Detroit."

REVISED RECORDS.--WSP 814: Drainage area at former site. WSP 1248: 1931. WRD OR-85-2: 1982-82(P).

GAGE. Water-stage recorder. Datum of gage is 1,590.07 ft above National Geodetic Vertical Datum of 1929. See WSP 1738 for history of changes prior to Oct. 1, 1952.


AVERAGE DISCHARGE. 61 years, 1,007 ft 3 /s, 63.31 in/yr, 729,600 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 26,700 ft 3/s Dec. 22, 1964, slope-area measurement of peak flow, gage height, 13.76 ft, temporary backwater from debris; minimum discharge, 250 ft 3 /s Sept. 13, 1909.





1 37

14306090

120183


n

59 5959595959595959

250%

386 387391398410427447477609

520%

342343346352362376390410499

1010%

322 323325330339351363381452

205%

306 307308313321333342359419

502%

289 289291295302313321337385

1001%

279 279280283290300307323364



1 37

15306090



n

61 616161616161

250%

6070 484036702800225018601680

520%

8950 704050503600278022401980

1010%

10900 855059204070307024402130

254%

13200 1050069704600338026602290

50' 2%

15000 1200077204960359028002380

1001%

16800 1340084505300378029202460



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

14600 18700 22100 25600


224


14179000 BREITENBUSH RIVER ABOVE FRENCH CREEK, NEAR DETROIT, OR

LOCATION.~Lat 44°45'10", long 122°07'40", in SE 1/4 NE 1/4 sec.36, T.9 S., R.5 E., Marion County, Hydrologic Unit 17090005, in Willamette National Forest, on left bank 600 ft upstream from Canyon Creek, 1.5 mi northeast of Detroit, and at mile 2.0.

DRAINAGE AREA. 108 mi , at measuring cable 0.2 mi downstream from gage.

PERIOD OF RECORD. June 1932 to September 1987 (discontinued). Monthly discharge only June 1932, published in WSP 1318. Published as "above Canyon Creek, near Detroit" from October 1952 to September 1984.

REVISED RECORDS.--WSP 1044: 1943(M). WSP 1248: 1947. WRD OR-85-2: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 1,573.95 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1952, at site 0.2 mi downstream at datum 13.46 ft lower.

REMARKS. No regulation or diversion upstream from station. All records given herein are for measuring site 0.2 mi downstream from gage.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,900 ft 3/s Dec. 22, 1964, gage height, 14.55 ft; minimum discharge, 87 ft 3/s Sept. 2, 1940.





1 37

14306090

120183


n

54 5454545454545454

250%

120121123127133144161186285

520%

105 106107110115123134149219

1010%

98 99

100103107114122133191

205%

93 949597

101107113122170

502%

88 88899195

100104110150

1001%

84 858687919699

103138



1 37

15306090



n

55 555555555555

250%

4900 365026301930149011901070

520%

6930 519036102520189014701290

1010%

8180 618042002850211016201400

254%

9640 741048903200235017701510

502%

10600 830053603440250018701580

1001%

11600 918058103640264019601640



1.25 80%

250%

5 20%

10 10%

254%

SO 2%

100 1%

6190 8890 10800 13400 15400 17400


225


14181500 NORTH SANTIAM RIVER AT NIAGARA, OR

LOCATION. Lat 44°45'10", long 122°17'50", in NE 1/4 NE 1/4 sec.34, T.9 S., R.4 E., Linn County, Hydrologic Unit 17090005, on left bank 0.1 mi downstream from Little Sardine Creek, 0.8 mi downstream from Big Cliff Dam, 2.1 mi east of Niagara, and at mile 57.3.


PERIOD OF RECORD. December 1908 to January 1920, October 1921 to March 1922, October 1938 to 1987.Monthly discharge only for some periods, published in WSP 1318. Published as "North Fork of Santiam River near Niagara" prior to October 1913, and as "above Mayflower Creek, near Detroit" October 1938 to September 1952.

REVISED RECORDS. WSP 1288: 1914-18, 1920. WSP 1718: 1953-54.

GAGE. Water-stage recorder. Datum of gage is 1,093.78 ft above National Geodetic Vertical Datum of 1929 (Federal Highway Administration bench mark). See WSP 1738 for history of changes prior to Oct. 1, 1952.

REMARKS. Flow regulated since 1953 by Detroit Lake (station 14180500) and Big Cliff Reservoir, usable capacity for re-regulating purposes, 2,930 acre-ft. No diversion upstream from station.

AVERAGE DISCHARGE. 59 years (water years 1910-19, 1939-87), 2,332 ft3/s, 69.91 in/yr, 1,690,000 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 63,200 ft 3/s Nov. 22, 1909, gage height, 16.4 ft, from floodmark, site and datum then in use, from rating curve extended above 35,000 ft /s; minimum discharge, 19 ft'/s Aug. 21, 1963; minimum daily, 395 ft'/s Mar. 25, 26, 1977.





1 37

14306090

120183


n

20 2020202020202020

250%

557 560567581606648723827

1210

520%

479 483488501518542582640905

1010%

443 446452463478499522559772

205%

415 417424434448469477500676

502%

386 387395404417429432440580

1001%



1 37

15306090



n

22 222222222222

250%

14900 1140087906560518043603920

520%

22900 17500126008990685056204910

1010%

28500 219001500010500782063305420

254%

35800 279001790012200892071005950

502%

41400 327001980013400966076006290

1001%



1.25 80%

250%

520%

10 10%

25 4%

50 2%

100 1%

13100 21400 34700 58500 69600

Systematic n 26 historical Weighted skew = -0.015

226


14182500 LITTLE NORTH SANTIAM RIVER NEAR MEHAMA, OR

LOCATION.~Lat 44°47'30", long 122°34'40", in NW 1/4 sec.16, T.9 S., R.2 E., Marion County, Hydrologic Unit 17090005, on left bank 2.0 mi east of Mehama and at mile 2.0.

DRAINAGE AREA. 112 mi2 at cableway 1.2 mi downstream where all discharge measurements are made.

PERIOD OF RECORD. October 1931 to 1987. Records for July to September 1924 and July to September 1931 at site 4 mi upstream not equivalent owing to difference in drainage areas.

REVISED RECORDS.--WSP 754: 1932. WSP 1218: 1934, 1936, 1949-50. WSP 1935: Maximum only, 1932-34, 1936, 1938, 1943, 1945-49, 1950<M,P), 1951-53W), 1954<M,P), 1955<M), 1956(M,P), 1957(M), 1958-59(M,P). WSP 2135: Drainage area.

GAGE. Hater-stage recorder. Datum of gage is 655.41 ft above National Geodetic Vertical Datum of 1929. Prior to June 12, 1948, nonrecording gage at about same site and datum.

REMARKS. No regulation or diversion upstream from station. Records herein are for measuring site.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 36,000 ft 3/s Dec. 22, 1964, gage height, 16.73 ft, from rating curve extended above 17,000 ft 3 /s; minimum discharge, 13 ft 3 /s Aug. 30, 1961.





1 37

14306090

120183


n

55 5555555555555555

250%

29 293033375068

106260

520%

23 23242629364668

183

1010%

20 21222325313854

151

205%

19 19202123273344128

502%

17 18192021242835

107

1001%

16 171819202226

31

94



1 37

15306090



n

56565656565656

250%

8680 615042202960222017501580

520%

11900 829055303780286022201960

1010%

14000 963063104280327025202190

254%

16500 1120072204850375028802470

502%

18300 1240078405250410031402660

1001%

20100 1350084205620444033902850



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

9270 13000 18500 22300 27200 31000 34900

Systematic n - 56 historical n - Weighted skew = 0.081

227


14183000 NORTH SANTIAM RIVER AT MEHAMA, OR

LOCATION. Lat 44°47'20", long 122°37'00", in NW 1/4 sec.18, T.9 S., R.2 E., Marion County, Hydrologic Unit17090005, on right bank 300 ft downstream from highway bridge at Mehama, 0.5 mi downstream from Little North Santiam River, and at mile 38.71.

DRAINAGE AREA. 655 mi , at cableway 0.8 mi downstream, where all discharge measurements are made.

PERIOD OF RECORD. July 1905 to March 1907, October 1910 to September 1914, September 1921 to 1987.Monthly discharge only September 1921, published in WSP 1318. Prior to October 1913, published as North Fork of Santiam River at Mehama.

REVISED RECORDS. WSP 739: 1922-23(M). WSP 1044: 1943. WSP 1248: 1906, 1911-14, 1924(M), 1926, 1934-36(M), 1937, 1938(M), 1942(M). WSP 2135: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 602.49 ft above National Geodetic Vertical Datum of 1929. Prior to June 15, 1933, nonrecording gage at site 100 ft upstream at same datum.

REMARKS. Flow regulated since 1953 by Detroit Lake (station 14180500) and Big Cliff Reservoir, usable capacity for re-regulating purposes, 2,930 acre-ft. No diversion upstream from station. All records given herein are for measuring site.

AVERAGE DISCHARGE. 71 years (water years 1906, 1911-14, 1922-87), 3,374 ft 3 /s, 2,444,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 76,600 ftVs Dec. 28, 1945, gage height, 15.37 ft, from rating curve extended above 36,000 ft 3 /s, on basis of slope-area measurement of peak flow; maximum gage height, 17.5 ft Nov. 20, 1921, from graph based on gage readings, and Jan. 6, 1923, from floodmark, at site then in use; minimum discharge, 254 ft /s Aug. 3, 1970; minimum daily, 420 ft /s Sept. 18, 1924.





1 37

14306090

120183


n

34 3434343434343434

250%

589595601616647693774899

1450

520%

508 513517529547573622687

1080

1010%

470 475479488501526559605934

205%

440 446449457467492514549831

502%

410 415419424431461470495732

1001%

391 396400404409442444464674



1 37

15306090



n

36 363636363636

250%

27300 201001500010900853067706100

520%

38400 2830019900143001070081807170

1010%

45700 3400022700164001190089207690

254%

54900 4130025800189001320097108200

502%

61800 46800279002070014100102008500

1001%

68700 52500299002240014900106008750



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

23900 48700


228


14183000 NORTH SANTIAM RIVER AT MEHAMA, OR Continued





1 37

14306090

120183


n

33 3333333333333333

250%

1060 10901120114011601260144016302110

520%

946 967988

100010301110124014001770

1010%

886 902919933967

1050115012901610

205%

835 848861876915

1000108012001490

502%

779 787797812859951

100011201360

1001%

741 747755770823920955

10601280



1 37

15306090



n

34 343434343434

250%

16600 144001280011200892071506430

520%

20700 1650015100133001100090508090

1010%

22400 17100159001410012000100008910

254%

23800 17400164001460012800110009720

502%

24600 175001660014800132001160010200

1001%

25100 176001670015000136001200010600



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


historical n

229


14185000 SOUTH SANTIAM RIVER BELOW CASCADIA, OR

LOCATION. Lat 44°23'35", long 122°30'35", in SE 1/4 sec.36, T.13 S. r R.2 E., Linn County, Hydrologic Unit17090006, on left bank 100 ft downstream from bridge at Cascadia ranger station, 0.5 mi downstream from Mouse Creek, 0.5 mi upstream from Deer Creek, 1.5 mi southwest of Cascadia, and at mile 48.5.

DRAINAGE AREA. 174 mi , at cableway 0.7 mi upstream, where all discharge measurements are made.

PERIOD OF RECORD. September 1935 to 1987. Monthly discharge only September 1935, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 759.88 ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 1, 1935, nonrecording gage.

REMARKS. No regulation or diversion upstream from station. All records given herein are for measuring site.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 27,600 ft 3/s Dec. 22, 1964, gage height, 19.68 ft, from rating curve extended above 14,000 ft 3/s; minimum discharge, 23 ft3/s Dec. 1, 2, 1936.





1 37

14306090

120183


n

51 5151515151515151

250%

48 495154607185

117270

520%

39 40414347556381

183

1010%

35 36373842485567

148

205%

31 32333437434957

122

502%

28 2929303338434898

1001%

25 2627283034404384



1 37

15306090



n

52 525252525252

250%

8970 653045803190244019001720

520%

12900 919061904140313024102150

1010%

15300 1090071204680351027102390

254%

18100 1290081705260394030802670

502%

20100 1430088805650422033302850

1001%

22000 1560095305990448035803030



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

17300 21000 25700 29200 32800


230


14185800 MIDDLE SANTIAM RIVER NEAR CASCADIA, OR

LOCATION. Lat 44e30'55", long 122e22'15", in NE 1/4 sec.19, T.12 S., R.4 E., Linn County, Hydrologic Unit 17090006, on right bank 5.6 mi downstream from Bear Creek, 10 mi northeast of Cascadia, and at mile 17.5.



GAGE. Hater-stage recorder. Elevation of gage is 1,040 ft, from topographic map.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 22,900 ft 3/s Dec. 22, 1964, gage height, 15.75 ft, from floodmark, from rating curve extended above 7,000 ft 3/s on basis of slope-area measurement of peak flow; minimum, 28 ft /s

Oct. 17, 26, 27, 1974.





1 37

14306090

120183


n

171717171717171717

250%

4545465056678099

198

520%

3637384045526175148

1010%

33 33343640465365

127

205%

30 30313336424858

113

50 1002% 1%



1 37

15306090



n

18 181818181818

250%

6280 475034502420183014501280

520%

9360 707048703240247019301670

1010%

11100 850056703700286022401930

254%

13000 1020065404190332026302260

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

5730 11600

systematic n = 18 historical n = 0 Generalized 17b skew = 0.108

231


14185900 QUARTZVILLE CREEK NEAR CASCADIA, OR

LOCATION.~Lat 44°32'25«, long 122°26'05-, in NW 1/4 sec.10, T.12 S., R.3 E., Linn County, Hydrologic Unit17090006, on Bureau of Land Management land, on right bank 80 ft downstream from Panther Creek, 10 mi north of Cascadia, and at mile 6.6.


PERIOD OF RECORD. August 1963 to November 1964 (destroyed by flood of December 1964); October 1965 to 1987.

GAGE. Hater-stage recorder and crest-stage gage. Elevation of gage is 1,050 ft, from topographic map. Aug. 13, 1963, to Dec. 22, 1964, water-stage recorder on left bank at present datum.


AVERAGE DISCHARGE. 23 years (water years 1964, 1966-87), 674 ft 3/s, 92.27 in/yr, 488,300 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 22,400 ft 3 /s Jan. 20, 1972, gage height, 16.38 ft; minimum discharge, 14 ft 3/s Aug. 19-23, 1973.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum discharge, 36,500 ft 3 /s Dec. 22, 1964, from slope-area measurement of peak flow.





1 37

14306090

120183


n

21 2121212121212121

250%

2929303236476188

201

520%

21 22222427344460

140

1010%

18 19192024303850

115

205%

16 1616172127344297

502%

141414151924303579

1001%




1 37

15306090



n

23 232323232323

250%

8040 591041902840209016201430

520%

10600 767053803600261020501800

1010%

12100 863059904000289023202040

254%

13800 968066104430318026402340

502%

15000 1040069804700337028802560

1001%

_



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

8210 19500 24800 29200


232


14186000 MIDDLE SANTIAM RIVER NEAR FOSTER, OR

LOCATION. Lat 44°27'35", long 122°31'25", in SE 1/4 sec.2, T.13 S., R.2 E., Linn County, Hydrologic Unit 17090006, 0.5 mi upstream from Green Peter Creek and 8 mi northeast of Foster.



GAGE. Staff gage. Datum of gage is 733.44 ft above National Geodetic Vertical Datum of 1929 (Northern Pacific Railway benchmark). Prior to Sept. 14, 1931, staff gage and Sept. 14, 1931, to Dec. 17, 1946, water-stage recorder, at same site and datum.


AVERAGE DISCHARGE. 16 years (water years 1932-47), 1,449 ftVs, 1,050,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 41,800 ftVs Dec. 28, 1945, gage height, 21.6 ft, from rating curve extended above 24,000 ft 3/s by logarithmic plotting; minimum, 54 ft 3 /s Dec. 1, 1936, gage height, 1.25 ft.





1 37

14306090

120183



n

15 1515151515151515

250%

77 78808492

108124174420

520%

65 666769768597

121282

1010%

60 616263697688

102230

205%

56 57585965708389

194

50 1002% 1%



1 37

15306090



n

16 161616161616

250%

15500 1120081105760447035803160

520%

22100 16500114007840587045703900

1010%

26800 20400135009110663051104290

254%

33300 256001580010600743056904690

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

15500 28400 33500 40100


23,3


14186500 MIDDLE SANTIAM RIVER AT MOUTH, NEAR FOSTER, OR

LOCATION. Lat 44°25'25", long 122°37'25", in NE 1/4 SE 1/4 sec.24, T.13 S., R.I E., Linn County, Hydrologic Unit 17090006, on right bank 2.7 mi northeast of Foster, and at mile 0.7.


PERIOD OF RECORD. October 1950 to September 1966. Prior to January 1951 monthly discharge only, published in WSP 1738.

GAGE. Water-stage recorder. Datum of gage is 562.14 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark). Prior to Oct. 25, 1952, staff gage at same site and datum.

REMARKS. Slight regulation from construction of Green Peter Dam upstream from station.

AVERAGE DISCHARGE. 16 years, 1,775 ft 3/s, 1,285,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 67,800 ft 3/s Dec. 22, 1964, gage height, 25.80 ft, from rating curve extended above 34,000 ft3/s on the basis of slope-area measurement of peak flow; minimum, 66 ft 3/s Sept. 10, 1966.





1 37

14306090

120183


n

15 1515151515151515

250%

101 102105110124155178232549

520%

84 858790

100121138171394

1010%

77 78798290

105122149332

205%

72 7374778394

111135289

50 1002% 1%

:: :: -MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

16 161616161616

250%

20200 1460094706790516040403660

520%

29500 21000133009000697052904620

1010%

36100 260001640010600828061605270

254%

45100 3330020900127001010073006130

50 1002% 1%

-



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

27400 47000 57800


234


14187000 WILEY CREEK NEAR FOSTER, OR

LOCATION. Lat 44°22'20", long 122°37'20", in NE 1/4 NE 1/4 sec.12, T.14 S., R.I E., Linn County, Hydrologic Unit 17090006, on right bank. 0.5 mi downstream from Little Wiley Creek, 3.5 mi southeast of Foster, and at mile 4.4.


PERIOD OF RECORD. October 1947 to July 1973.

GAGE. Water-stage recorder. Elevation of gage is 716.08 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark.). Prior to Apr. 6, 1965, water-stage recorder at present site and datum 2.00 ft higher. Apr. 6 to Aug. 17, 1965, nonrecording gage at present site and datum.


AVERAGE DISCHARGE. 25 years (1948-72), 224 ft3/s, 58.72 in/yr, 162,300 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 9,640 ft 3/s Jan. 21, 1972, gage height, 9.28 ft, from rating curve extended above 3,700 ftVs; maximum gage height, 11.80 ft, present datum, Dec. 21, 1964 (backwater from debris); minimum discharge, 5.6 ft 3/s Nov. 26, 1952.





1 37

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120183


n

24 2424242424242424

250%

9.8 1010111316192660

520%

7.9 8.18.59.01012141943

1010%

7.0 7.27.68.19.011121635

205%

6.5 6.67.07.48.29.6111330

502%

5.9 6.06.46.77.58.6101124

1001%




1 37

15306090



n

25 252525252525

250%

2550 19501340944711558492

520%

3760 272018401230876691596

1010%

4680 328022001410982784665

254%

5960 4040267016201110906755

502%

7020 46503040178012101000823

1001%

8160 53003430194013101100892



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3550


235


14187100 WILEY CREEK AT FOSTER, OR

LOCATION.~Lat 44°23'55", long 122°39'35", in SW 1/4 NW 1/4 sec.35, T.13 S., R.I E., Linn County, Hydrologic Unit 17090006, on left bank 1.5 mi downstream from Jackson Creek, 1.0 mi southeast of Foster, and at mile 1.4.



GAGE. Water-stage recorder. Elevation of gage is 590 ft, from topographic map. Prior to May 2, 1974, at present site at datum 5.00 ft lower.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,320 ft 3/s Jan. 15, 1974, gage height, 9.28 ft; minimum discharge, 3.1 ftVs Oct. 19, 1973.





1 37

14306090

120183


n

13 1313131313131313

250%

8.3 8.59.09.91215192657

520%

5.9 6.06.36.98.311131841

1010%

4.9 5.05.35.76.68.7111536

20 50 1005% 2% 1%



. 1 37

15306090



n

14 141414141414

250%

2430 17701310974758576497

520%

3190 235016801180906714635

1010%

3520 266018601270965781722

254%

3820 2980204013501010845830

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2570 3300 4270 4910


236


14187200 SOUTH SANTIAM RIVER NEAR FOSTER, OR

LOCATION. Lat 44°24'45", long 122°41'15", in SE 1/4 NE 1/4 sec.28, T.13 S., R.I E., Linn County, Hydrologic Unit 17090006, on left bank 0.6 mi downstream from Wiley Creek and at mile 37.0.


PERIOD OF RECORD. August 1973 to 1987. Records for October 1966 to July 1973 (published as South Santiam River at Foster, station 14186700) at site 0.5 mi upstream not equivalent owing to inflow between sites.

GAGE. Water-stage recorder. Elevation of gage is 560 ft, from topographic map.

REMARKS. Flow regulated since October 1966 by Green Peter Lake (station 14186100) and since December 1966 by Foster Lake (station 14186600). No diversion upstream from station.

AVERAGE DISCHARGE. 14 years, 2,927 ft 3 /s, 71.36 in/yr, 2,121,000 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 18,800 ft 3 /s Feb. 26, 1982, gage height, 16.61 ft; minimum discharge, 425 ft 3 /s July 26, 1976.





1 37

14306090

120183


n

13 1313131313131313

250%

630 643670680703749820987

1340

520%

541 549567575602678748856

1150

1010%

496 501515522550647719797

1080

20 50 1005% 2% 1%



1 37

15306090



n

14 141414141414

250%

14500 137001300011400916073206350

520%

15800 1480014200129001110091608030

1010%

16000 1500014300132001170098608730

254%

16100 15100144001330012200104009310

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


237


14187500 SOUTH SANTIAM RIVER AT WATERLOO, OR

LOCATION. Lat 44°29'55", long 122°49'20", in SW 1/4 NW 1/4 sec.28, T.12 S., R.I W., Linn County, Hydrologic Unit 17090006, on left bank 0.1 mi downstream from highway bridge at Waterloo, 2.1 mi upstream from Hamilton Creek, and at mile 23.3.


PERIOD OF RECORD. July 1905 to March 1907, October 1910 to December 1911 (gage heights only January to December 1911), July 1923 to 1987. Monthly discharge only for some periods, published in WSP 1318. Published as South Fork of Santiam River at Waterloo 1905-07, 1910-11.

REVISED RECORDS. WSP 1248: 1907, 1924-30, 1932.

GAGE. Water-stage recorder. Datum of gage is 370.39 ft above National Geodetic Vertical Datum of 1929. Prior to Dec. 31, 1911, nonrecording gage at site 0.5 mi downstream at datum about 5.0 ft lower. July 1, 1923, to Nov. 12, 1934, nonrecording gage, at present site and datum.

REMARKS. Flow regulated since October 1966 by Green Peter Lake (station 14186100) and since December 1966 by Foster Lake (station 14186600). No diversion upstream from station.

AVERAGE DISCHARGE. 65 years (water years 1906, 1924-87), 2,944 ft 3 /s, 2,133,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 95,200 ft 3/s Dec. 22, 1964, gage height, 24.50 ft; minimum discharge, 61 ft 3/s Oct. 12, 1966.





1 37

14306090

120183


n

41 4141414141414141

250%

148 150155163183222265365837

520%

122123127131145169194246572

1010%

111 112113118129147167202470

205%

103 104105108118131148173401

502%

95 969699

110115129147335

1001%

91 919193

100105119132297



1 37

15306090



n

43 434343434343

250%

29400 220001570011400873068606150

520%

42000 3140021300146001120086707660

1010%

50700 3800024900166001260098208590

254%

62100 47000292001890014300112009700

502%

70700 540003240020500154001220010500

1001%

79600 613003560022000165001320011200



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

26300 37900 54600 66100 80900 92200 103700

Systematic n *= 44 historical n Weighted skew = -0.012

238


14187500 SOUTH SANTIAM RIVER AT WATERLOO, OR Continued





1 37

14306090

120183


n

20 2020202020202020

250%

580 594616626652716839

10001370

520%

493 503519528556616694809

1100

1010%

452 459471479508573627718977

205%

420 424433441471542576648886

502%

386 387392400430510522574794

1001%

_



1 37

15306090



n

21 212121212121

250%

15100 140001310011300907073706530

520%

16700 1520014200130001090090608000

1010%

17100 1540014400134001170097608610

254%

17200 15500144001370012300103009120

502%

17300 15500144001380012600106009370

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n =

239


14188800 THOMAS CREEK NEAR SCIO, OR

LOCATION. Lat 44°42'42", long 122045'55", in SE 1/4 SE 1/4 sec.11, T.10 S., R.I W., Linn County, Hydrologic Unit 17090006, on left bank 0.3 mi upstream from bridge on State Highway 226, 1.6 mi upstream from Mill Creek, 4.2 mi east of Scio, and at mile 14.6.


PERIOD OF RECORD. October 1962 to September 1987 (discontinued).

REVISED RECORDS. TOR OR-71-1: 1965(P), 1966(P), 1969(P).

GAGE. Hater-stage recorder. Datum of gage is 380.84 ft above National Geodetic Vertical Datum of 1929.

REMARKS. No regulation. Several small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 27,400 ft3 /s Dec. 22, 1964, gage height, 18.44 ft, from rating curve extended above 7,200 ft la, on basis of slope-area measurement of peak flow; maximum gage height, 19.58 ft Jan. 21, 1972, backwater from debris; minimum discharge, 7.8 ftVs Aug. 20, 1967.





1 37

14306090

120183


n

24 2424242424242424

250%

18 19202125324156

124

520%

13 1415161823283888

1010%

11 1213141519243174

205%

101112121317212764

502%

8.9 9.610111115182355

1001%




1 37

15306090



n

25 252525252525

250%

5120 381029102100161012401100

520%

7090 525038702660198015601380

1010%

8300 624044702990218017501560

254%

9730 752051903350239019601760

502%

10700 851057003600253021101910

1001%

11700 952061903830265022502050



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

7320 26300


240


14189000 SANTIAM RIVER AT JEFFERSON, OR

LOCATION.~Lat 44°42'55", long 122°00'40", in SE 1/4 sec.11, T.10 S., R.3 W., Marion County, Hydrologic Unit17090005, on right bank 350 ft upstream from Southern Pacific railroad bridge at Jefferson, 2.1 mi downstream from confluence of North and South Santiam Rivers, and at mile 9.62.


PERIOD OF RECORD. October 1905 to June 1906 (gage heights and discharge measurements only), October 1907 to September 1916, October 1939 to 1987. Gage-height records collected at same site since 1907 are contained in reports of National Weather Service.

REVISED RECORDS. WSP 904: WSP 1935: 1909.

Drainage area. WSP 1094: 1908, 1910, 1912, 1943. WSP 1248: 1911, 1915-16(M).

GAGE. Water-stage recorder. Datum of gage is 199.63 ft above National Geodetic Vertical Datum of 1929. Prior to Sept. 22, 1940, nonrecording gages at sites within 350 ft downstream at datum 3.00 ft higher.

REMARKS. Flow regulated since 1953 by Detroit Lake (station 14180500), since 1966 by Green Peter Lake (station 14186100) and by Foster Lake (station 14186600). Salem Canal diverts from North Santiam River at Stayton for irrigation and power; most of this water reaches Willamette River by way of Mill Creek at Salem. Stayton Canal diverts from North Santiam River at Stayton for irrigation of lands near town of West Stayton; some return flow reaches North Santiam River upstream from station. Albany power canal diverts from South Santiam River at Lebanon; return flow reaches Willamette River at Albany.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 197,000 ftVs Dec. 22, 1964, gage height, 24.22 ft; minimum discharge observed, 260 ft 3/s Aug. 15-22, Aug. 24 to Sept. 2, 1940.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood stage of 25.0 ft was reached in December 1861, and 23.4 ft inFebruary 1890 (information from Corps of Engineers). On Nov. 21, 1921, the stage reached 19.5 ft at gage on railroad bridge 350 ft downstream, corresponding gage height at present site and datum, 24.4 ft, from curve of relation, discharge, 202,000 ft /a.




DISCHARGE, IN FT3/S, FOR INDICATED RECURRENCEPERIOD (CONSECUTIVEDAYS)

1 37

14306090

120183

INTERVAL, EXCEEDANCE

n

21 2121212121212121

250%

500 50350853156364581311902580

520%

369 371376394416481565763

1830

IN YEARS, AND ANNUAL NON- PROBABILITY, IN PERCENT

1010%

316 318323338360426475604

1520

205%

278 281285299322390417497

1290

502%

242 244249261285359362399

1070

1001%




1 37

15306090



n

23 232323232323

250%

66200 511004030029100222001750015800

520%

97400 719005390036800284002200019200

1010%

118000 849006070040400313002420020800

254%

143000 1000006740043700341002640022300

502%

162000 1110007120045600357002770023200

1001%




1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

50600 76000 114600 142200 179200 208200

Systematic n - 22 historical n » 62 Weighted skew - 0.032

241


14189000 SANTIAM RIVER AT JEFFERSON, OR Continued





1 37

14306090

120183


n

20 2020202020202020

250%

1300 13201350140014801700207025303480

520%

1180 11901220125013101440170020502850

1010%

1110 113011601180123013301530182025SO

205%

1070 10801100112011601250140016502380

502%

1010 10301050105010901170127014602190

1001%



1 37

15306090



n

21 212121212121

250%

44900 385003390028800235001900016600

520%

54900 436003740032600276002300020200

1010%

5S200 446003790033300289002430021500

254%

60400 450003800033600297002530022600

502%

61300 451003810033700299002570023100

1001%

__



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

242


14189500 LUCKIAMUTE RIVER NEAR HOSKINS, OR

LOCATION. Lat 44°43'10«, long 123°30'10«, in NE 1/4 sec.11, T.10 S., R.7 W., Benton County, Hydrologic Unit 17090003, on right bank 0.2 mi downstream from Benton County Line, 3.5 mi northwest of Hoskins, and at mile 43.2.


PERIOD OF RECORD. May 1934 to September 1978.

GAGE. Water-stage recorder. Datum of gage is 378.7 ft above National Geodetic Vertical Datum of 1929 (river-profile survey).

REMARKS. Logponds upstream cause diurnal fluctuation at times. Minor diversion upstream from station by pumping for irrigation.

AVERAGE DISCHARGE. 44 years, 209 ft'/s, 82.75 in/yr, 151,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,560 ft3/s Dec. 14, 1946, Feb. 17, 1949; maximum gage height, 13.22 ft Dec. 14, 1946; minimum discharge, 4.0 ft'/s Sept. 5-8, 1962.





1 37

14306090

120183


n

43 4343434343434343

250%

9.3 9.59.7101113151937

520%

7.3 7.67.88.39.111121527

1010%

6.4 6.77.07.48.39.5111323

205%

5.8 6.16.46.87.78.79.71120

502%

5.1 5.45.76.17.07.98.71017

100

4 5556789

1%

.7

.0

.4

.8

.7

.4

.2

.215



1 37

15306090



n

44 444444444444

250%

2280 17501300967735581526

520%

2970 223016301190906717645

1010%

3420 257018401320995789701

254%

3990 3010209014601090862753

502%

4410 3360227015601140908783

1001%

4840 3710245016401190948807



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%



243


14190000 LUCKIAMOTE RIVER AT PEDEE, OR

LOCATION. Lat 44044'35-, long 123°25'25-, in SE 1/4 sec.33, T.9 S., R.6 W., Polk County, Hydrologic Unit 17090003, on left bank 0.5 mi downstream from Pedee Creek, 1.0 mi southwest of Pedee, and at mile 29.7.



GAGE. Water-stage recorder. Datum of gage is 245.47 ft above National Geodetic Vertical Datum of 1929. Prior to July 1, 1949, nonrecording gage at site 1,700 ft downstream at datum 1.85 ft lower.

REMARKS. Some diurnal fluctuation at low flow caused by logponds upstream from station. Several small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 15,700 ft 3/s Dec. 22, 1964, gage height, 20.09 ft, from rating curve extended above 8,000 ft 3 /s; minimum, 7.0 ft 3/s Sept. 12, 1944, Aug. 25, 30, 1967.





1 37

14306090

120183


n

29 2929292929292929

250%

13 1416171923283676

520%

10 1112131517202654

1010%

8.89.711111215172245

205%

7.9 8.79.4101113141937

502%

6.97.68.38.79.411121530

1001%

6.37.07.67.98.49.4111426



1 37

15306090



n

30 303030303030

250%

4770 382029302190168013001180

520%

6400 504038302830213016601490

1010%

7740 604044503220236018601660

254%

9730 752052803670259020801830

502%

11500 880059303990273022301940

1001%

13400 1030066004290285023602040



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

4780 8640 10400 12700 14600


244


14190500 LUCKIAMUTE RIVER NEAR SUVER, OR

LOCATION. Lat 44"47'00", long 123"14'00", in SW 1/4 SW 1/4 sec.18, T.9 S., R.4 W., Polk County, Hydrologic Unit 17090003, on right bank 10 ft upstream from highway bridge at Helmick State Park, 3.0 mi northwest of Suver, 4.7 mi downstream from Little Luckiamute River, and at mile 13.5.


PERIOD OF RECORD.--August 1905 to October 1911, July 1940 to 1987.

REVISED RECORDS. WSP 1044: Drainage area. WSP 1094: 1945-46. WSP 1248: 1905-11.

GAGE. Water-stage recorder. Datum of gage is 171.92 ft above National Geodetic Vertical Datum of 1929. Aug. 18, 1905, to Oct. 31, 1911, nonrecording gage at present site at different datum, Aug. 20 to Oct. 15, 1940, nonrecording gage at present site and datum.

REMARKS. Some diurnal fluctuation during periods of low flow caused by millpond upstream from station. A few small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 32,900 ftVs Dec. 22, 1964, gage height, 34.52 ft; minimum discharge, 0.65 ftVs Aug. 13, 1966.





1 37

14306090

120183


n

46 4646464646464646

250%

2627282932394660

128

520%

16 1718202227334392

1010%

11 1213151722283676

205%

7.4 8.59.8121419243165

502%

4.65.56.78.61015202654

1001%

3.24.05.06.98.513172347



1 37

15306090



n

53 535353535353

250%

10100 818062804560344027202420

520%

14500 1130083205850432034103020

1010%

17400 1330095406560476037503280

254%

21300 16100110007330519040703510

502%

24300 18100120007830545042603630

1001%

27300 20200129008280566044103730



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

7860 11400 16900 20800 26100 30300 34800

Systematic n 53 historical n - Weighted skew = 0.131

245


14190700 RICKREALL CREEK NEAR DALLAS, OR

LOCATION. Lat 44°54'55", long 123°23'02", in SW 1/4 SE 1/4 sec.35, T.7 S., R.6 W., Polk County, Hydrologic Unit 17090007, on left bank 1.8 mi downstream from Canyon Creek, 3.5 mi west of Dallas, 5.1 mi downstream from Aaron Mercer Reservoir, and at mile 19.1.



GAGE. Water-stage recorder and concrete control. Elevation of gage is 460 ft, from topographic map.

REMARKS. Low flow regulated since June 1960 by Aaron Mercer Reservoir, usable capacity, 2,010 acre-ft. Diversion for city of Dallas municipal supply from four tributaries and Rickreall Creek upstream fromstation.

COOPERATION. Records of diversion, monthend elevations of reservoir, and reservoir capacity curve furnished by city of Dallas.

AVERAGE DISCHARGE.--21 years (water years 1958-78), 148 ft 3 /s, 73.35 in/yr, 107,200 acre-ft/yr, adjusted for diversion and storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,160 ft 3/s Dec. 22, 1964, gage height, 8.78 ft; no flow at times.





1 37

14306090

120183


n

17 1717171717171717

1 2223446

250%

.9

.2

.4

.7

.2

.2

.9

.416

0 0112234

520%

.6

.9

.4

.6

.0

.6

.3

.411

0 01112238

1010%

.2

.5

.0

.2

.5

.0

.6

.5

.6

20 50

0 00011237

5% 2%

. 1

.3

.8

.9

.2

.6

.2

.0

.3

1001%

_ _



1 37

15306090



n

18 181818181818

250%

2380 16901180822605475411

520%

3420 234015601020717575499

1010%

4040 275017701120759610528

254%

4760 323020001220792635548

50 1002% 1%

II II



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

Systematic n - historical n Generalized 17b skew =

246


14191000 WILLAMETTE RIVER AT SALEM, OR

LOCATION.~Lat 44°56'40", long 123°02'30", in SE 1/4 SW 1/4 sec. 22, T.7 S. f R.3 W., Marion County, Hydrologic Unit 17090007, on right bank 300 ft upstream from Center Street Bridge in Salem and at mile 84.16.


PERIOD OF RECORD. October 1909 to December 1916, January 1923 to 1987. Monthly discharge only January1923 to September 1927, published in MSP 1318. Gage-height records collected at about the same site since 1892 are contained in reports of National Heather Service.

REVISED RECORDS.--WSP 1318: 1915(M).

GAGE. Hater-stage recorder. Datum of gage is 106.14 ft above National Geodetic Vertical Datum of 1929. Oct. 1, 1909, to Dec. 31, 1916, nonrecording gage at site 0.5 mi upstream at datum 8.00 ft higher. Jan. 1, 1923, to Nov. 26, 1934, nonrecording gage at Center Street Bridge at datum 8.00 ft higher. Nov. 27, 1934, to Sept. 30, 1962, water-stage recorder at present site at datum 8.00 ft higher.

REMARKS. Flow regulated by reservoirs upstream from station. Many small diversions for irrigation upstream from station; part of flow of Salem Canal, which diverts water from North Santiam River, returns to Hillamette River downstream from station, through Mill Creek at Salem.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 348,000 ft 3/s Jan. 8, 1923, gage height, 38.3 ft, present datum; minimum discharge, 2,470 ft 3/s Aug. 27, 1940, gage height, 3.55 ft, present datum.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum discharge, 500,000 ft 3/s Dec. 4, 1861, gage height, about 47 ft present datum, from rating curve extended above 250,000 ftVs in 1916. Floods of Jan. 16, 1881, and Feb. 5, 1890, reached stages of 44.3 ft, discharge, 428,000 ftVs, and 45.1 ft, discharge, 448,000 ft 3/s,

respectively, from floodmarks and information by Corps of Engineers.





1 37

14306090

120183


n

24 2424242424242424

250%

3260 32803310336034603630398044106920

520%

2870 29002920295030103080328035305250

1010%

2700 27202740277028202880301032104620

205%

2560 25802600263026802760282029904190

502%

2420 24302460248025302640265027903790

1001%



1 37

15306090



n

25 252525252525

250%

144900 13500011010081700626004910043500

520%

201600 182100142500103600773006040052700

1010%

238900 211500161300116700852006700057900

254%

285800 246700182400131800935007470063600

502%

320400 271800196700142300988007990067400

1001%

354900 2959002098001522001036008490070900


DISCHARGE, IN FT 3/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

115400

250%

162300

Systematic n = 49 Weighted skew =

5 20%

232800

historical 0.205

10 10%

283500

n =129

25 4%

351900

50 2%

406000

100 1%

462900

247


14191000 WILLAMETTE RIVER AT SALEM, OR~Continued





1 37

14306090

120183


n

18 1818181818181818

250%

6400 6450652066206750715079609030

11200

520%

5620 56605750584060106360691078409540

1010%

5160 52105310541056106020643072708810

205%

4770 48204940504052905780606068308260

50 1002% 1%

__ _



1 37

15306090



n

19 191919191919

250%

121100 11660010520090000751006090052200

520%

150600 140700122000103000853007310064900

1010%

161300 147900125700105400870007630069400

254%

169000 152100127400106400877007790072700

50 1002% 1%

_ _



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


248


14192500 SOOTH YAMHILL RIVER NEAR WILLAMINA, OR

LOCATION. Lat 45°02'50", long 123°30'10", in NE 1/4 SE 1/4 sec.14, T.6 S., R.7 W., Polk County, Hydrologic Unit 17090008, on left bank. 2.3 mi southwest of Willamina, 2.8 mi upstream from Willamina Creek, and at mile 45.5.


PERIOD OF RECORD. May 1934 to 1987.

REVISED RECORDS.--WSP 814: Drainage area. WSP 1318: 1934.


REMARKS. Slight regulation occasionally at low flows by millpond upstream. No diversion upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 19,600 ft 3/s Dec. 22, 1964, gage height, 17.07 ft; minimum discharge, 2.6 ft 3/s Oct. 11, 1952.





1 37

14306090

120183


n

52 5252525252525252

250%

13 1314151823294093

520%

8.6 9.29.9111316202763

1010%

6.9 7.58.19.01013162251

205%

5.7 6.36.87.68.811141843

502%

4.65.15.66.27.39.2111534

1001%

3.9 4.44.85.46.48.1101330



1 37

15306090



n

53 535353535353

250%

7200 554041103020230017901600

520%

9260 707051203720275021801950

1010%

10500 804056904090296023802130

254%

11900 922063204490315025802290

502%

12900 1010067504750325027102390

1001%

13800 1090071404980334028202470



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

7030 9350 12300 14000 16200 17700

Systematic n - 53 historical n Weighted skew - -0.182

249


14193000 WILLAMINA CREEK NEAR WILLAMINA, OR

LOCATION.~Lat 45°08'35", long 123°29'35", in NE 1/4 NW 1/4 sec.13, T.5 S. f R.7 W., Yamhill County, Hydrologlc Unit 17090008, on right bank 4.5 mi north of Willamina and at mile 6.2.



REVISED RECORDS.--WSP 1738: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 315 ft above National Geodetic Vertical Datum of 1929 (plane-table survey). Prior to Oct. 1, 1939, water-stage recorder at site on left bank at datum 1.00 ft higher. Oct. 1, 1939, to Aug. 5, 1968, water-stage recorder at site on left bank at present datum.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 10,800 ft 3 /s Dec. 22, 1964, gage height, 13.54 ft, from rating curve extended above 3,400 ft /s on basis of slope-area measurement at gage height 11.65 ft; minimum discharge, 5.4 ft 3 /s July 15, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Mar. 31, 1931, reached a stage of about 12 ft, from information by local resident, discharge, 8,200 ft /s, from rating curve extended above 3,400 ftVs on basis of slope-area

measurement at gage height 11.65 ft.





1 37

14306090

120183


n

52 5252525252525252

250%

12 1313141518212547

520%

10 1111121314172035

1010%

9.5 9.910111213151729

205%

8.9 9.39.5101112141625

502%

8.3 8.78.99.41011121421

1001%

8.0 8.38.59.09.911121319



1 37

15306090



n

53 535353535353

250%

2780 214016201230935732650

520%

3740 2790205015201130908807

1010%

4370 3230231016601210998884

254%

5150 38102610181012901090959

502%

5740 425028201910133011401000

1001%

6320 471030101990136011901040



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3670 6090 8360 9360


53 historical 0.093

57

250


14193300 MILL CREEK NEAR WILLAMINA, OR

LOCATION.~Lat 44°58'15", long 123°26'55", in NE 1/4 NW 1/4 sec.17, T.7 S., R.6 H., Polk County, Hydrologic Unit 17090008, on left bank. 0.2 mi upstream from bridge, 0.7 mi downstream from South Branch, 7.5 mi south of Millamina, and at mile 11.5.



GAGE. Water-stage recorder. Datum of gage is 562.02 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation).


AVERAGE DISCHARGE.--15 years (water years 1959-73), 140 ftVs, 69.39 in/yr, 101,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maxinvum discharge, 6,170 ftVs Dec. 22, 1964, gage height, 11.47 ft; minimum, 2.6 ftVs

Sept. 8, 1958.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183


n

14 1414141414141414

250%

3.9 4.04.14.34.75.46.68.621

520%

3.4 3.43.53.73.84.24.96.315

1010%

3.1 3.13.33.43.53.84.35.412

2 2333344

205%

.9

.9

.1

.2

.2

.5

.0

.810

50 1002% 1%



1 37

15306090



n

15 151515151515

250%

2130 15401060774561429369

520%

2920 20101320933640509427

1010%

3510 238015201020678549455

254%

4310 292017901130714590482

50 1002% 1%

" "

-



1.2525102550100 80% 50% 20% 10% 4% 2% 1%

23203070410047805640

Systematic n = 15 historical n = 0 Generalized 17b skew - 0.086

251


14194000 SOUTH YAMHILL RIVER NEAR WHITESON, OR

LOCATION. Lat 45°10'08", long 123°12'25«, in NE 1/4 NW 1/4 sec.5, T.5 S., R.4 W., Yamhill County, Hydrologic Unit 17090008, near left bank on downstream side of Whiteson Bridge on State Highway 99W, 1.3 mi northwest of Whiteson, 1.4 mi downstream from Salt Creek, and at mile 16.71.



GAGE. Water-stage recorder. Datum of gage is 82.30 ft above National Geodetic Vertical Datum of 1929. Prior to Sept. 20, 1940, nonrecording gage at present site and datum.

REMARKS. Slight regulation during low-water periods by logpond upstream. Many small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 47 years, 1,754 ft 3/s, 47.45 in/yr, 1,271,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 47,200 ft 3/s Dec. 23, 1964, gage height, 47.20 ft; minimum discharge, 3.2 ftVs Aug. 24, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of December 1937 reached a stage of 46.9 ft, from Oregon State Highway Department bridge plans.





1 37

14306090

120183


n

46 4646464646464646

250%

24 25273136466085

218

520%

14 15172023314057

148

1010%

10 11131518253246

118

205%

7.6 8.59.8121521273898

502%

5.2 6.07.18.51117213178

1001%

4.0 4.75.66.89.514182767



1 37

15306090



n

47 474747474747

250%

19500 16400125009210691053804740

520%

25600 208001580011500850067905980

1010%

29000 230001750012500919074706550

254%

32700 254001920013500980081107070

502%

35200 2680020200141001010084807350

1001%

37400 2810021100145001040087807570



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

16300 21900 28700 32800 37500 40800 43900


252


14194300 NORTH YAMHILL RIVER NEAR FAIRDALE, OR

LOCATION.~Lat 45°21'55«, long 123°22'40", in SW 1/4 sec.25, T.2 S., R.6 W., Yamhill County, Hydrologic Unit17090008, on right bank. 0.4 mi downstream from small tributary, 1.3 mi upstream from Kutch Creek., 2.1 mi west of Fairdale, 9.5 mi west of Yamhill and at mile 28.4.


PERIOD OF RECORD. October 1958 to March 1966, October 1967 to 1987.



AVERAGE DISCHARGE. 27 years (water years 1959-65, 1968-87), 47.0 ft 3 /s, 70.68 in/yr, 34,050 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,330 ft 3 /s Dec. 22, 1964, gage height, 6.88 ft, from rating curve extended above 1,000 ft /s; maximum gage height, 9.7 ft Dec. 23, 1964 (backwater from debris); minimum discharge, 2.3 ft 3 /s Sept. 23-26, 1965.





1 37

14306090

120183

n

26 2626262626262626


3 3333455

250%

.1

.2

.3

.5

.8

.5

.0

.911

520%

2 22333448

.7

.8

.9

.0

.3

.7

.1

.8

.3

1010%

2.6 2.62.72.83.03.43.74.47.3

20

2. 2.2.2,2.3.3.4.6.

5%

.4

.5

.6

.7

.8

.2

.5

.1

.6

502%

2.3 2.42.42.52.72.93.23.85.9

1001%

2.3 2.32.42.42.62.83.03.75.4



1 37

15306090



n

27 272727272727

250%

417 332255193154122108

520%

652479340250189155138

1010%

849 593394288207174154

254%

1150 757461336227195171

502%

1420 896511371239209182

1001%

1730 1050559406250222192



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

356 906 2060 2530


253


14195000 HASKINS CREEK NEAR McMINNVILLE, OR

LOCATION. Lat 45°18'50", long 123°21'55", in NE 1/4 sec.13, T.3 S., R.6 W., on left bank. 150 ft downstream from Idlewild Creek., 0.5 mi upstream from Haskins Creek Dam, and 11 miles northwest of McMinnville.



GAGE. Water-stage recorder. Wooden control since September 1936. Elevation of gage is 815 ft above National Geodetic Vertical Datum of 1929 (by barometer). Prior to Oct. 1, 1930, at datum 1.00 ft higher.

REMARKS. No regulation. Since Sept. 2, 1937, a small amount of water (average, 1.4 ft 3/s) has been diverted at a point 800 ft upstream for municipal supply of McMinnville.

AVERAGE DISCHARGE. 23 years (1929-51), 26.4 ft 3/s (19,110 acre-ft/yr), adjusted for diversion.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 610 ft 3/s Mar. 31, 1931 (gage height, 4.00 ft, before control was built); minimum prior to diversion above station, 1.0 ft 3/s Oct. 8, 1932.





1 37

14306090

120183

n

22 2222222222222222


2 550% 20%

0.9 0.4 1.0 0.51.1 0.61.2 0.61.4 0.71.8 1.02.0 1.22.4 1.64.6 3.2

1010%

0 00000012

.3

.3

.4

.4

.5

.7

.8

.2

.6

205%

0.2 0.20.20.20.30.50.61.02.2

502%

0.1 0.10.10.10.20.30.40.71.7

1001%




1 37

15306090



n

23 232323232323

250%

234 188146114897064

520%

320 2531971501158980

1010%

3823022311711309988

254%

466 36827719514611096

502%

532 422312212156117100

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

211 578 659


254


14196500 NORTH YAMHILL RIVER NEAR PIKE, OR

LOCATION. Lat 45°22'15", long 123°17'10", in NE 1/4 sec.27, T.2 S., R.5 W., on left bank 1.3 miles west of Pike, 2.3 miles downstream from Haskins Creek, and 5.2 miles northwest of Yamhill.



GAGE. Water-stage recorder. Datum of gage is 249.22 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark). Prior to Oct. 23, 1940, staff gage at same site and datum.

REMARKS. Occasional diurnal fluctuations caused by small dams upstream; no seasonal regulation. Water supply for city of McMinnville is diverted from Haskins Creek upstream from station.

AVERAGE DISCHARGE. 11 years (1940-51), 184 ft 3/s (133,200 acre-ft/yr).

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,780 ft 3/s Feb. 10, 1949 (gage height, 9.28 ft), from rating curve extended above 2,500 ft 3/s by logarithmic plotting; minimum, 4.2 ft 3/s Sept.11, 1944; minimum dally, 6.0 ftVs

Sept. 10, 1944.





1 37

14306090

120183


n

10 1010101010101010

250%

8.4 8.69.19.41012141733

520%

7.2 7.47.88.18.910121529

1010%

6.6 6.87.17.68.49.9111426

20 50 1005% 2% 1%




1 37

15306090



n

11 111111111111

250%

2010 14901110865649521474

520%

2480 177013901090830652603

10 2510% 4%

2740 192015501200913712665

50 1002% 1%



1.25 % 5 fo~25 50 TOO 80% 50% 20% 10% 4% 2% 1%

2190 2780 3550 4060


255


14197000 NORTH YAMHILL RIVER AT PIKE, OR.

LOCATION.~Lat 45022'10", long 123°15'15", in NW 1/4 sec.25, T.2 S., R.5 W., Yamhill County, on right bank 500 ft downstream from Turner Creek, 0.5 mile southeast of Pike, 4.0 miles northwest of Yamhill, and at mile 20.5.



GAGE. Water-stage recorder. Datum of gage is 192.66 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark). Prior to Aug. 21, 1950, water-stage recorder at datum 1.02 ft higher.


REMARKS. Seasonal regulation by Haskins Creek. Reservoir (station 14195500); occasional diurnal fluctuationcaused by Haskins Creek Dam and smaller dams upstream. Water supply for city of McMinnville is diverted from Haskins Creek upstream from station and that for city of Yamhill is diverted from Turner Creek upstream from station. Smaller diversions upstream from station for irrigation.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 9,530 ft 3/s Dec. 21, 1955 (gage height, 12.42 ft), from ratingcurve extended above 2,600 ft /s on basis of slope-area measurement of peak flow; minimum, 1.7 ft3/s Sept. 3, 1972.





1 37

14306090

120183

n

24 2424242424242424


7 7889

250%

.7

.9

.2

.6

.311131634

520%

5.6 5.86.16.57.28.39.81225

4 445678

1010%

.3

.6

.8

.4

.3

.2

.61021

3 3345679

205%

.4

.6

.9

.6

.7

.4

.7

.218

2 2235568

502%

.4

.6

.9

.7

.0

.6

.8

.015

1001%

_



1 37

15306090



n

25 252525252525

250%

2700 203015701250936724638

520%

3680 2620194015101110880762

1010%

4410 3080217016301200963822

254%

5420 37402450175012801050883

502%

6250 42802640182013301110919

1001%

7140 48802830187013701160949



1.25 80%

2970

Systematic

250%

3990

n = 25

5 20%

5590

historical

10 10%

6790

n = 0

25 4%

8460

50 2%

9840

100 1%

11300

256


14198000 WILLAMETTE RIVER AT WILSONVILLE, OR

LOCATION. Lat 45°17'57", long 122°45'00", in SE 1/4 NE 1/4 sec.24, T.3 S., R.I W., Clackamas County, on left bank, 0.2 miles downstream from Boeckman Creek, 1.1 miles downstream from bridge on Interstate Highway 5 at Wilsonville, and at mile 37.4.



GAGE. Water-stage recorder. Datum of gage is National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1954, nonrecording gage at Butteville, 5.9 mi upstream at same datum. Oct. 1, 1954, to Nov. 2, 1970, at site 1.1 mi upstream at same datum.

REMARKS. Flow regulated by reservoirs upstream from station. Many diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 24 years (1948-72), 28,900 ft 3 /s, 21,000,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 339,000 ft 3/s Dec. 25, 1964, elevation, 94.74 ft; minimum daily, 3,600 ftVs Nov. 29, 30, 1952. Flood of Dec. 4, 1861 reached a stage of about 105 ft at Wilsonville (discharge not determined).





1 37

14306090

120183


n

20 2020202020202020

250%

6060 6090616062106360672072908130

11200

520%

5580 56205680572058506070649071409610

1010%

5330 53705430549056205790615067108870

205%

5120 51605230532054405590589064008320

502%

4870 49305020514052605390563061007740

1001%

_



1 37

15306090



n

24 242424242424

250%

145800 140300125800103100841006730060400

520%

189000 1805001608001303001051008490074900

1010%

223300 2123001864001479001187009690084100

254%

273700 25880022150017000013560011280095400

502%

316500 298200249800186300148100125000103600

1001%



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%


257


14198500 MOLALLA RIVER ABOVE PINE CREEK, NEAR WILHOIT, OR

LOCATION. Lat 45°00'35», long 122°28'45", in NE 1/4 NE 1/4 sec.31, T.6 S., R.3 E., Clackamas County, Hydrologic Unit 17090009, on right bank 0.5 mi upstream from Pine Creek, 5 mi southeast of Wilhoit, and at mile 32.5.

DRAINAGE AREA. 97.0 mi2 , at cableway 0.2 mi downstream.


REVISED RECORDS. WSP 1738: Drainage area. WDR OR-75-1: 1967(M).

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 791/35 ft above National Geodetic Vertical Datum of 1929 (Bureau of Public Roads bench mark). Oct. 1, 1935, to Sept. 30, 1945, and Oct. 1, 1945, to Feb. 9, 1961, water-stage recorder at site 0.3 mi downstream at datums 8.42 ft and 10.44 ft lower, respectively. Feb. 10, 1961, to July 21, 1966, water-stage recorder at site 0.2 mi downstream at datum 5.99 ft lower.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 24,300 ft 3/s Dec. 22, 1964, gage height, 16.3 ft, from floodmarkf site and datum then in use, from rating curve extended above 5,200 ft3/s; minimum discharge, 18 ft 3 /s Oct. 3, 1965.





1 37

14306090

120183


n

51 5151515151515151

250%

30 30313337465780

170

520%

24 24252729354256

124

1010%

22 22232426313746

105

205%

20 2021222428334092

502%

19 1920202225293479

1001%

18 1819192124273072



1 37

15306090



n

52 525252525252

250%

5730 432031002180167013001160

520%

7680 574040602770210016401450

1010%

8760 654045703070232018201610

254%

9920 742051003380254020201780

502%

10700 799054303570267021501890

1001%

11300 851057103730279022701990



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

5520 7460 10500 12700 15800 18300 21000

Systematic n = 52 historical n - 0 Weighted skew = 0.409

258


14200000 MOLALLA RIVER NEAR CANBY, OR

LOCATION. Lat 45°14'40", long 122°41'10", in NW 1/4 NE 1/4 sec.9, T.4 S., R.I E., Clackamas County, Hydrologic Unit 17090009, on left bank, on upstream side of Goods bridge, 1.5 mi south of Canby, and at mile 6.01.


PERIOD OF RECORD. August 1928 to September 1959, October 1963 to September 1978.

GAGE. Water-stage recorder. Datum of gage is 104.00 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 24, 1933, nonrecording gage and Oct. 24, 1933, to Sept. 26, 1955, water-stage recorder at present site and at datum 1.00 ft higher. Sept. 27, 1955, to June 3, 1956, water-stage recorder at site 145 ft downstream at present datum. June 4, 1956, to Sept. 30, 1959, water-stage recorder at site 0.3 mi downstream at datum 1.98 ft lower. Oct. 1, 1963, to May 4, 1964, nonrecording gage at present site and datum.

REMARKS. No regulation. Numerous small diversions for irrigation upstream from station.



Aug. 27, 1959.





1 37

14306090

120183


n

44 4444444444444444

250%

57 5961657389109147317

520%

44 464851566679

102223

1010%

39 41434549586785

187

205%

36 38394144525973

162

502%

33 34353739465262

138

1001%

31 33333537424756

125



1 37

15306090



n

46 464646464646

250%

10900 859065104770371028802580

520%

15800 1230088306210472037103280

1010%

19000 14600101006920520041803670

254%

23100 17600115007600564046804090

502%

26100 19700125007990588050104370

1001%

29000 21700133008320607053004610



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

25000 36300


259


14200300 SILVER CREEK AT SILVERTON, OR

LOCATION.~Lat 45°00'34", long 122°47'15", in NE 1/4 sec.34, T.6 S., R.I W. e Marion County, Hydrologic Unit 17090009, on right bank. 300 ft downstream from railroad bridge in Silverton, 2.5 mi upstream from Brush Creek, and at mile 3.4.

DRAINAGE AREA. 47. 9 mi 2 .

PERIOD OP RECORD. October 1963 to September 1968, October 1970 to September 1979.


REMARKS. No regulation. Several small diversions for irrigation and municipal use upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,900 ft 3/s Dec. 22, 1964, gage height, 11.15 ft; minimum, 2.0 ft 3/s

Aug. 20, 21, 1967.





1 37

14306090

120183




n

12 1212121212121212

250%

5.8 6.16.67.69.312152039

520%

3.94.14.45.06.07.49.51428

1010%

3.1 3.33.64.04.75.87.41124

205%

502%

1001%

_



1 37

15306090



n

14 141414141414

250%

1960 15601210937739562488

520%

2830 221016101180906731637

10 2510% 4%

3360 264018501310990834732

502%

::

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1900


260


14201000 PUDDING RIVER NEAR MOUNT ANGEL, OR

LOCATION. Lat 45Q03'47", Long 122Q49'45", in SE 1/4 sec. 8, T.6 S., R.I W., on left bank on downstream side of Cline Bridge, 1.5 miles west of Mount Angel, 3.5 miles upstream from Little Pudding River, and at mile 40.4.

PERIOD OF RECORD. October 1939 to March 1966. Monthly discharge only January to September 1945, published in WSP 1318.


GAGE. Water-stage recorder. Datum of gage is 119.76 ft above National Geodetic Vertical Datum of 1929. Prior to Sept 22, 1945, staff or wire-weight gages at same site and datum.

REMARKS. No regulation. Many small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 26 years, 711 ftVs (514,700 acre-ft/yr).

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,700 ftVs Dec. 22, 1964 (gage height, 31.50 ft); minimum discharge, 2.4 ft 3/s Aug. 9, 1965.





1 37

14306090

120183


n

26 2626262626262626

250%

15 15161720293656

152

520%

9.29.7111214202538

108

1010%

7.1 7.68.79.71217213089

205%

5.7 6.17.38.21015182576

502%

4.4 4.86.06.98.512152063

1001%

3.7 4.15.36.17.711131856



1 37

15306090



n

26 262626262626

250%

5580 486039203060239018901690

520%

7950 664052103860297023802110

1010%

9400 765058904220324026502330

254%

11100 876065804530349029302570

502%

12300 948070104700363031202720

1001%

13400 1010073704830374032802850



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3930 6150 12000 20400

Systematic n = 25 historical n Weighted skew - -0.059

261


14201500 BOTTE CREEK AT MONITOR, OR

LOCATION. Lat 45°06'06", long 122°44'42", in SE 1/4 SE 1/4 sec.25, T.5 S., R.I W., Marion County, Hydrologic Unit 17090009, on left bank at downstream side of highway bridge at Monitor and at mile 7.7.


PERIOD OF RECORD. January to December 1936, October 1940 to September 1952, October 1966 to September 1985. Monthly discharge only for January to December 1936, published is WSP 1318.

GAGE. Water-stage recorder. Elevation of gage is 155 ft, from topographic map. Jan. 20 to Oct. 22, 1936, nonrecording gage at present site at different datum. Oct. 23 to Dec. 19, 1936, nonrecording gage at site 70 ft downstream at different datum. Oct. 1, 1940, to Sept. 30, 1952, nonrecording gage at present site at 151.35 ft above National Geodetic Vertical Datum of 1929.

REMARKS. No regulation. Diversions for irrigation by pumping upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,310 ft 3/s Jan. 21, 1972, gage height, 15.26 ft, from floodmark; minimum discharge, 0.04 ft 3 /s July 23, 24, Aug. 26, 1982.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

29 2929292929292929


250%

4.1 4.85.76.58.111152252

1 233469

520%

.9

.5

.1

.8

.9

.4

.01437

1010%

1.21.72.22.83.64.66.71031

01122358

205%

.8

.2

.5

.0

.7

.5

.2

.326

0 0111236

502%

.5

.7

.0

.4

.9

.5

.8

.422

100

0 0011135

1%

.4

.5

.7

.1

.5

.9

.1

.319



1 37

15306090



n

31 313131313131

250%

2360 17801360957750581518

520%

3240 249018301240924719646

1010%

3750 292020701380995782708

254%

4300 3400232015201050840767

502%

4660 3730247016001080873802

1001%

4990 4040260016601100898830



1 .25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3030 5630 6950 7930 8900


262


14202000 PUDDING RIVER AT AURORA, OR

LOCATION.~Lat 45°14'00", long 122°44'56", in SE 1/4 sec.12, T.4 S., R.I W., on upstream side of bridge on U.S. Highway 99E at Aurora, 0.9 mile upstream from Mill Creek and at mile 8.11.



GAGE. Wire-weight gage read once daily. Datum of gage is 72.23 ft above mean sea level, datum of 1929, supplementary adjustment of 1947. Prior to Oct. 2, 1934, and June 1 to Sept. 30, 1961, staff or wire-weight gage at same site and datum 5.00 ft higher. All gage heights given herein are at present datum.

REMARKS. Slight regulation at high stages by pumping plant at mouth of Little Pudding River and at times, in summer, by mills on tributaries. Small diversions upstream from station.

COOPERATION. Gage-height record collected in cooperation with U.S. Weather Bureau.

AVERAGE DISCHARGE. 36 years, 1,151 ft 3 /s (881,100 acre-ft/yr).

EXTREMES FOR PERIOD OF RECORD. 1928-64: Maximum discharge, 25,400 ft 3/s Dec. 30, 1937 (gage height, 29.5 ft, from graph based on gage readings), from rating curve extended above 16,000 ft /s; minimum, 26 ft /s Aug. 13, 14, 1961.

Maximum stage known, 30.0 ft Jan. 7, 1923 (discharge, 27,900 ft 3/s from rating curve extended above 16,000 ftVs).

Flood of Dec. 23, 1964, reached a stage of 29.57 ft (discharge, 26,200 ftVs) .





1 37

14306090

120183


n

35 3535353535353535

250%

49505154587081

110249

520%

38 38404246576583

179

1010%

33 33353741515872

150

205%

29 29313437475464

129

502%

25 25283033445057

109

1001%

23 2325283141475298



1 37

15306090



n

36 363636363636

250%

7710 727064805340418032002870

520%

11400 1020085006660526041103660

1010%

14300 1220096407280582046504110

254%

18300 14800109007870639052704630

502%

21700 16800117008190674057004980

1001%

25500 18800125008450705061005300



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

23400 28500



263


14202500 TUALATIN RIVER NEAR GASTON, OR

LOCATION.~Lat 45°26'11", long 123°10'07", in SE 1/4 SW 1/4 sec.34, T.I S., R.4 W., Washington County, Hydrologic Unit 17090010, on right bank 1.5 mi west of Gaston, and at mile 63.9.


PERIOD OF RECORD. October 1940 to September 1956, October 1972 to September 1976, October 1978 to September 1984. October 1976 to September 1978 in reports of Oregon Water Resources Department. Prior to October 1973 published as "at Gaston."

GAGE. Water-stage recorder. Elevation of gage is 170 ft, by barometer. Prior to May 20, 1942, water-stage recorder at site 1.5 mi downstream at datum 164.18 ft above National Geodetic Vertical Datum of 1929. May 20, 1942, to Sept. 30, 1956, nonrecording gage at present site at different datum.

REMARKS. Slight diurnal fluctuation caused by logponds upstream. Small diversions for irrigation upstream from station. In 1949 city of Hillsboro began diverting about 5 ft /s for municipal supply. Some water is diverted from Roaring Creek upstream for Forest Grove municipal supply.

AVERAGE DISCHARGE. 26 years (water years 1941-56, 1973-76, 1979-84), 198 ft3 /s, 55.44 in/yr, 143,500 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,170 ft3/s Dec. 21, 1955, gage height, 13.18 ft, site and datum then in use; minimum discharge, 0.20 ft3/s Sept. 22, 23, 1951, Aug. 14, 15, Sept. 25, Oct. 8, 1952.





1 37

14306090

120183


n

13 1313131313131313

250%

5.3 5.66.47.81013162036

520%

1.3 1.42.03.14.56.58.21224

1010%

0.5 0.61.01.62.54.05.27.617

20 50 1005% 2% 1%

_ __ __



1 37

15306090



n

16 161616161616

250%

2000 15701210887677540492

520%

2590 202014801090844700642

1010%

2930 229016201210951804734

254%

3310 2610175013301080935842

50 1002% 1%

_ _



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


264


14202980 SCOGGINS CREEK BELOW HENRY HAGG LAKE, NEAR GASTON, OR

LOCATION. Lat 45028'10", long 123°11'56", in SE 1/4 NE 1/4 sec.20, T.I S., R.4 W., Washington County, Hyd'rologic Unit 17090010, on left bank. 600 ft downstream from Scoggins Dam, 800 ft upstream from small left bank, tributary, 3.7 mi northwest of Gaston, and at mile 4.8.


PERIOD OF RECORD. January 1975 to 1987.


REMARKS. Flow completely regulated by Henry Hagg Lake since January 1975. Discharge not adjusted for storage or release from Henry Hagg Lake as evaporation from reservoir at times exceeds natural flow.

AVERAGE DISCHARGE. 12 years, 107 ft 3 /s, 77,520 acre-ft.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,250 ft 3 /s Dec. 16, 1977, gage height, 13.50 ft; minimum discharge, 1.4 ft 3 /s Nov. 16, 1978.





1 37

14306090

120183



n

11 1111111111111111

250%

13 1414161830355076

520%

8.1 8.28.59.41117202955

1010%

6.4 6.46.77.48.712152044

20 50 1005% 2% 1%

_ _ _



1 37

15306090



n

12 121212121212

250%

603 578521388273203177

520%

865 805661488367282245

10 2510% 4%

1030 934710529420329288

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


265


14203000 SCOGGINS CREEK NEAR GASTON, OR.

LOCATION. Lat 45°27'32", long 123°09'16", on line between sees. 26 and 27, T.I S., R.4 W., Washington County, on left bank 100 ft upstream from bridge on State Highway 47, 1.7 mi northwest of Gaston, and at mile 1.71.


PERIOD OF RECORD. October 1940 to September 1974. Prior to October 1973, published as Scoggin Creek near Gaston.

GAGE. Water-stage recorder. Datum of gage is 168.92 ft above mean sea level. Prior to Oct. 1, 1947, water-stage recorder at site 300 ft upstream at same datum. Oct. 1, 1947, to June 7, 1950, nonrecording gage at site 150 ft upstream at same datum.

REMARKS. Some diurnal fluctuation caused by logponds upstream from station. Diversions by pumping for irrigation upstream from station. Part of domestic water supply for Hillsboro is diverted from Sain Creek upstream from station.


EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,320 ftVs Dec. 21, 1955, gage height, 15.94 ft; minimum, 0.10 ftVs

Aug. 28, Sept. 30, Oct. 1, 3, 1958, Aug. 23, 24, 1961.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

16 1616161616161616


0 1123457

250%

.6

.0

.9

.7

.4

.1

.6

.918

0 0112235

520%

.3

.5

.1

.5

.0

.7

.8

.513

0 0011234

1010%

.2

.4

.7

.1

.5

.2

.1

.511

205%

0.1 0.30.60.81.11.82.63.99.8

50

0 0.0001238

2%

.1

.2

.4

.5,8.5.1.2.3

100

0 0,0.0011,27

1%

.1

.2

.3

.4

.6

.3

.8

.9

.5



1 37

15306090



n

34 343434343434

250%

1460 1140904721539425375

520%

1940 14901130875654530464

1010%

2290 17401250939706583508

254%

2770 21001400994753636551

502%

3150 239014901020778668577

1001%

3570 270015801040797695598



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1290 2580 3220 5900

Systematic n 34 historical n - 0 Weighted skew = 0.641

266


14203500 TUALATIN RIVER NEAR DILLEY, OR

LOCATION.~Lat 45°28'30", long 123°07'23", in NE 1/4 NW 1/4 sec.24, T.I S., R.4 W., Washington County, Hydrologic Unit 17090010, on left bank 5 ft upstream from highway bridge, 1.0 mi south of Dilley, 1.2 mi downstream from Scoggins Creek, and at mile 58.81.


PERIOD OF RECORD. October 1939 to 1987. Prior to October 1940 monthly discharge only, published in WSP 1318.

REVISED RECORDS.--WSP 1935: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 147.57 ft above National Geodetic Vertical Datum of 1929. Prior to June 16, 1950, nonrecording gage at several sites within 200 ft of present site at datum 4.00 ft higher. June 16, 1950, to Aug. 10, 1966, water-stage recorder at present site at datum 4.00 ft higher.

REMARKS. Diurnal fluctuation caused by operation of millpond on Scoggins Creek upstream from station and regulation by Henry Hagg Lake since January 1975. Diversions upstream from station of approximately 3,000 acre-ft from J. W. Barney Reservoir on the Middle Fork of North Fork Trask River for municipal water supply and irrigation in Wapato Lake area.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 17,100 ft 3/s Dec. 22, 1964, gage height, 19.34 ft, from rating curve extended above 6,000 ft /s; minimum discharge, 0.08 ft /s Sept. 3, 1967.





1 37

14306090

120183

n

25 2525252525252525


250%

2.23.34.55.87.811142052

0112358

520%

.7

.1

.9

.6

.4

.5

.01335

0 011235

1010%

.3

.6

.2

.6

.1

.5

.71028

205%

0.2 0.30.71.01.32.44.28.023

0 0000126

502%

.1

.2

.4

.6

.7

.5

.9

.218

1001%

0.0 0.10.30.40.51.02.25.115



1 37

15306090



n

34 343434343434

250%

4270 334026002090157012301080

520%

6050 470035802720201015801390

1010%

7460 583042703040224017901570

254%

9500 754052003380248020201770

502%

11200 906059303580263021701900

1001%

13200 1080067003760276023102030



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

5000 12700 15400 18400


267


14203500 TUALATIN RIVER NEAR DILLEY, OR~Continued





1 37

14306090

120183


n

11 1111111111111111

250%

41 4548617494

108118131

520%

2930324050667685

106

1010%

24 2526313952596794

20 50 1005% 2% 1%

__ __ -_ __



1 37

15306090



n

12121212121212

250%

2870 2490192015101170940801

520%

4180 338025101820142011801050

1010%

4860 377027401910149012501140

25 50 1004% 2% 1%

__



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%


historical n =

268


14204000 GALES CREEK NEAR GALES CREEK, OR

LOCATION. Lat 45°38'30", long 123°15'55", in NW 1/4 SE 1/4 sec.23, T.2 N., R.5 W., Washington County, Hydrologic Dnit 17090010, on right bank. 0.5 mi downstream from Beaver Creek., 4.6 mi northwest of town of Gales Creek, and at mile 17.5.


PERIOD OF RECORD.--October 1935 to September 1945, October 1963 to September 1970.

GAGE. Water-stage recorder. Datum of gage is 449.31 ft above National Geodetic Vertical Datum of 1929. Prior to Feb. 3, 1964, nonr'ecording gage at same site and datum.



EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,970 ft 3/s Dec. 22, 1964, gage height, 8.63 ft; minimum, 1.7 ft 3 /s Sept. 28, 1967.




PERIOD < CON

SECUTIVEDAYS)

1 37

14306090

120183


n

15 1515151515151515

250%

4.6 5.66.26.67.18.08.91018

520%

3.1 3.94.44.85.25.96.98.214

1010%

2.5 3.13.53.94.35.16.07.312

2 2233456

205%

.1

.6

.9

.2

.6

.4

.4

.810

50 1002% 1%




1 37

15306090



n

17 171717171717

250%

1580 1210869650467373325

520%

2190 16501140820569437379

1010%

2560 19201270890613460397

254%

2970 22401410947653477411 .

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1410 1980 2810 3400 4170

Systematic n = 17 historical n = Generalized 17b skew - 0.144

269


14204500 GALES CREEK NEAR FOREST GROVE, OR

LOCATION. Lat 45°33'20«, long 123°11'10«, in SE 1/4 sec.21, T.I N., R.4 W., Washington County, Hydrologic Unit17090010, on left bank 50 ft downstream from Roderick road bridge, 0.1 mi below Kelly Creek, 2.5 mi southeast of town of Gales Creek, 4.5 mi northwest of Forest Grove, and at mile 8.7.


PERIOD OF RECORD. October 1940 to September 1956, October 1970 to September 1981.

GAGE. Water-stage recorder. Datum of gage is 201.81 ft above National Geodetic Vertical Datum of 1929. Prior to Sept. 13, 1941, at site 1.4 mi downstream at datum 14.33 ft lower. Sept. 13, 1941, to June 19, 1952, at downstream side of bridge at datum 1.44 ft higher. June 20, 1952, to Jan. 3, 1956, at datum 1.00 ft higher.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,410 ft 3/s Feb. 17, 1949, gage height, 10.90 ft, from floodmark, site and datum then in use; maximum gage height, 12.95 ft, from floodmark, Jan. 21, 1972; minimum discharge, 1 ft 3 /s Aug. 19, 1947.





1 37

14306090

120183

n

25 2525252525252525



250%

7.7 8.28.89.51113141833

455679

520%

.8

.3

.8

.5

.4

.1111324

1010%

3.64.14.55.26.07.59.21120

23345689

205%

.8

.3

.7

.2

.1

.3

.0

.918

2 2234568

502%

.1

.5

.8

.4

.1

.2

.9

.315

100

1 2223467

1%

.7

.1

.4

.9

.6

.5

.2

.413



1 37

15306090



n

27272727272727

250%

2500 197015101150846674605

520%

3470 2720199014601080872775

1010%

4040 3160224015901180963843

254%

4710 36702480170012801050896

502%

5170 40302620176013301090922

1001%

5590 43602740180013701120939



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2110 3170 4680 5700 6990 7950 8910


27 historical - -0.165

n - 0

270


14205500 EAST FORK DAIRY CREEK AT MOUNTAINDALE, OR

LOCATION. Lat 45038'05«, long 123°02'35", in NE 1/4 NW 1/4 sec.27, T.2 N., R.3 W., Washington County, Hydrologic Unit 17090010, on left bank at dam site 0.7 mi northwest of village of Mountaindale.

DRAINAGE AREA. 43.0 mi 2 , including two small streams on left bank which enter creek below station.



REMARKS. Diurnal fluctuation at low stages caused by logpond upstream. Probably some pumping for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,420 ft 3/s Feb.17, 1949, gage height, 12.54 ft; minimum, 7 ft 3/s

Sept. 10-12, 1944.





1 37

14306090

120183


n

10 1010101010101010

250%

10 1011111112141624

520%

9.1 9.19.29.71011121420

1010%

8.2 8.38.59.11011121318

20 50 1005% 2% 1%



1 37

15306090



n

11 111111111111

250%

1070 865679507362303270

520%

1260 1070840672501395349

10 2510% 4%

1310 1150896748585443389

50 1002% 1%




1.25 2 5 To 25 50 100 80% 50% 20% 10% 4% 2% 1%


271


14206000 MCKAY CREEK NEAR NORTH PLAINS, OR

LOCATION.--Lat 45037'32", long 122°58'32-, in SE 1/4 sec.30, T.2 N., R.2 W., Washington County, Hydrologic Unit 17090010, on downstream end of left timber bent of bridge on Shadybrook Road, 2.0 mi upstream from Jackson Creek, and 2.3 mi northeast of North Plains.


PERIOD OF RECORD. October 1940 to September 1943, October 1948 to September 1956.

GAGE. Water-stage recorder. Datum of gage is 172.57 ft above National Geodetic Vertical Datum of 1929. Oct. 1, 1940, to Sept. 30, 1943, at datum 0.25 ft higher.

REMARKS. Some diurnal fluctuation in sunnier caused by pumping for irrigation upstream from station.

AVERAGE DISCHARGE. 11 years <water years 1941-43, 1949-56), 70.7 ft 3 /s, 51,180 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,100 ft3/a Feb. 17, 1949, gage height, 11.23 ft; maximum gage height, 11.35 ft Dec. 21, 1955; minimum discharge, 0.4 ft 3/s Aug. 17, 18, 22, 1951.






1 37

14306090

120183


FT3/S, FORIN YEARS,

INDICATEDAND ANNUAL

RECURRENCENON-


2 550% 20%

1010*

205%

502%

1001%

_



1 37

15306090



n

11 111111111111

250%

796 700531387286217202

520%

1040 826645496365274247

1010%

1220 886697550409307268

25 50 1004% 2% 1%

_ _ _



1.25 80%

2 50%

520%

10 10%

25 4%

50 2%

100 1%

739 954 1250 1440


272


14206500 TUALATIN RIVER AT FARMINGTON, OR

LOCATION. -Lat 45°26'50", long 122°56'58", In SE 1/4 SE 1/4 sec.29, T.I S., R.2 W., Washington County, Hydrologlc Unit 17090010, on left bank at Harris bridge at Farmington, 5.0 mi south of Hillsboro, and at mile 33.3.


PERIOD OF RECORD. October 1939 to September 1958. October 1972 to September 1976 (October, May to September only, each year).

GAGE. Water-stage recorder. Datum of gage is 100.42 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1940, nonrecording gage at same site at datum 2.00 ft higher. Oct. 1, 1940, to Sept. 30, 1958, nonrecording gage at present site and datum.

REMARKS. Flow regulated by Henry Hagg Lake since January 1975.

AVERAGE DISCHARGE. 19 years (water years 1940-58), 1,355 ft 3 /s, 981,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge during period October 1939 to September 1958, 24,200 ft 3/s Dec. 22, 1955, gage height, 36.03 ft, from floodmark; no flow Aug. 4-7, Aug. 10 to Sept. 6, 1958.





1 37

14306090

120183


n

16 1616161616161616

250%

3234374045576891

176

520%

18 19212427384665

126

1010%

12 13141720293550

102

205%

8.0 8.69.5121422273983

50 1002% 1%

__ __ --



1 37

15306090



n

19 191919191919

250%

10300 961082806800526041603730

520%

14100 12600105008550683054404860

1010%

16000 14000115009280764061505450

254%

18000 15300123009890846069306050

50 1002% 1%

--



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

6980 10100 15000 18500 23400

Systematic n - 19 historical n - 0 Generalized 17b skew - 0.169

273


14207500 TUALATIN RIVER AT WEST LINN, OR (National stream quality accounting network station)

LOCATION. Lat 45°21'03", long 122°40'30", in SW 1/4 sec.34, T.2 S., R.I E., Clackamas County, Hydrologic Unit 17090010, on left bank 300 ft upstream from bridge on State Highway 212, 0.4 mi west of West Linn city limits, and at mile 1.8.


PERIOD OF RECORD. July 1928 to 1987. Prior to October 1960, published as "near Willamette."

REVISED RECORDS. WSP 1014: 1943. WSP 1184: 1947. WSP 1248: 1941. WSP 1935: Drainage area. WDR OR-75-1: 1974(M). WDR OR-77-1: 1971-73, 1975, 1976(M).

GAGE. Water-stage recorder. Datum of gage is 85.61 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). Prior to June 12, 1941, nonrecording gage at datum 1.02 ft higher.

REMARKS. October 1951 to September 1970, all records published for this station included the daily flow in Oswego Canal. Oswego Canal diverts at point 5.0 mi upstream from station for development of power between outlet of Lake Oswego and Willamette River. Some regulation in low-water season by flashboards on crest of diversion dam for Oswego Canal and regulation by Henry Hagg Lake since January 1975. Several diversions upstream from station for irrigation.

AVERAGE DISCHARGE. 59 years, 1,531 ft 3 /s, 29.45 in/yr, 1,109,000 acre-ft/yr, adjusted for diversion.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 23,300 ft 3/s Dec. 23, 1933, gage height, 17.72 ft; minimum daily discharge, 0.20 ft 3/s July 30 to Aug. 2, 1966.





1 37

14306090

120183


n

22 2222222222222222

250%

8.9 9.1101215222945

137

520%

5.3 5.66.57.69.515213294

1010%

4.1 4.45.26.27.913182876

205%

3.33.74.45.46.911162562

502%

2.6 3.03.74.66.010152250

1001%

_



1 37

15306090



n

23 232323232323

250%

9100 883081606910541042303780

520%

13400 12800113009100693054404910

1010%

16400 155001330010300772060605480

254%

20500 191001580011600854066906040

502%

23600 219001770012500904070706360

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

6340 9390 14400 23700 28300


274


14207500 TUALATIN RIVER AT WEST LINN, OR--Continued (National stream quality accounting network station)





1 37

14306090

120183


n

18 1818181818181818

250%

2.93.13.43.95.2 .8.61531

134

520%

1.2 1.31.51.92.84.77.31683

1010%

0.7 0.70.91.32.13.65.11164

205%

0.4 0.50.60.91.73.03.98.751

50 1002% 1%

-- --



1 37

15306090



n

19 191919191919

250%

10100 981090607790638049404300

520%

13400 13000115009700789063205350

1010%

15600 149001290010600863070805930

254%

18100 172001440011600937079206550

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

275


14208000 CLACKAMAS RIVER AT BIG BOTTOM, OR

LOCATION. Lat 45°01'00", long 121°55'10", in NW 1/4 SE 1/4 sec.26, T.6 S., R.7 E., Clackamas County, Hydrologic Unit 17090011, Mount Hood National Forest, on right bank at lower end of Big Bottom, 0.5 mi downstream from Pot Creek, 28 mi southeast of Estacada, and at mile 65.1.


PERIOD OF RECORD. April 1920 to September 1970. Monthly discharge only April 1920 published in WSP 1318.

GAGE. Water-stage recorder. Elevation of gage is 2,040 ft, from topographic map. Prior to Dec. 27, 1962, at site 0.2 mi upstream at different datum.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 11,200 ft 3/s Dec. 22, 1964, gage height, 10.55 ft, from rating curve extended above 1,200 ft 3 /s on basis of slope-area measurement of peak flow; minimum, 184 ft 3/s

Sept. 12, 1942.





1 37

14306090

120183


n

49 4949494949494949

250%

239240242244248252256263306

520%

216217218220223226229233260

1010%

204205206208211214216220242

205%

195 196197198201203205210229

502%

185 186187187190192194199217

1001%

178 179180180182185187192210



1 37

15306090



n

50 505050505050

250%

2430 1950155012501040854759

520%

3690 29202180164012701020895

1010%

4590 36302610187013901100962

254%

5780 459031502130151011901030

502%

6710 535035502310159012401070

1001%

7670 616039602480165012901100



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3010 6030 7780 9180 10600

Systematic n = 50 Weighted skew

historical n 0.004

276


14208500 OAK GROVE FORK AT TIMOTHY MEADOWS, OR

LOCATION. Lat 45°07'00", long 121°48'00", In SW 1/4 sec.23, T.5 S., R.8 E., Clackamas County, Hydrologic Unit 17090011, 0.8 mi upstream from Anvil Creek, 10 mi upstream from Oak Grove intake dam, and 26.5 mi southeast of Cazadero.


PERIOD OF RECORD»r-March 1913 to September 1929. Published as "Oak Grove Fork of Clackamas River at Timothy Meadows, near Cazedero", prior to 1922.

GAGE. Water-stage recorder. Datum of gage is 3,140 ft above National Geodetic Vertical Datum of 1929 (from levels to approximate gage datum).

REMARKS. No diversion upstream from station. No regulation except natural storage in Clackamas Lake and in meadows upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 970 ft 3/s Jan. 7, 1923, gage height, 3.20 ft, from rating curve extended above 460 ft 3/s; minimum, 90 ft 3 /s Oct. 18-26, 28-31, Nov. 1-5, 1926.





1 37

14306090

120183


n

13 1313131313131313

250%

123 124125127130135138141152

520%

108 109110111113117121123130

1010%

100 101101102104108111113119

20 50 1005% 2% 1%




1 37

1530eo90



n

14141414141414

250%

483 451412368332302277

520%

684630545471416369332

1010%

819 749625533466406363

254%

990 899718605524449399

50 1002% 1%

_ __



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

353 511 740 899


277


14208700 OAK GROVE FORK NEAR GOVERNMENT CAMP, OR

LOCATION. Lat 45°06'50", long 121°48'50", in NE 1/4 sec.27, T.5 S., R.8 E., Clackamas County, Hydrologic Unit 17090011, Mount Hood National Forest, on right bank 0.1 mi upstream from Anvil Creek, 0.3 mi downstream from Timothy Lake, 14 mi south of Government Camp, and at mile 15.5.


PERIOD OF RECORD.--July 1956 to 1987.

GAGE. Water-stage recorder and artificial control. Datum of gage is 3,041.83 ft above National Geodetic Vertical Datum of 1929 (Portland General Electric Co. bench mark).

REMARKS. Flow regulated since 1956 by Timothy Lake (station 14208600). No diversion upstream from station.

AVERAGE DISCHARGE. 31 years, 131 ft 3 /s, 32.70 in/yr, 94,910 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,110 ftVs Dec. 24, 1964, gage height, 3.93 ft, from rating curve extended above 290 ft 3 /s on basis of slope-area measurement of peak flow; minimum discharge, 3.7 ft 3 /s

Sept. 23, 1968.






1 37

14306090

120183


n

30303030303030

250%

::40404451586683

520%

33343538414456

1010%

29323233353645

205%

26313030303038

502%

22292827262530

1001%

20292725242226



1 37

15306090



n

31 313131313131

250%

357 350335311276232203

520%

490 458418371331281248

1010%

615 546477411367311277

254%

824 676556463413348316

502%

1030 790618503447375345

1001%

1280 917684543482401376



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


278


14209000 OAK GROVE FORK ABOVE POWERPLANT INTAKE, OR

LOCATION. Lat 45°04'20", long 121°57'00" f on line between sees.3 and 4, T.6 S. f R.7 E., Clackamas County,Hydrologic Unit 17090011, Mount Hood National Forest, on right bank 0.2 mi upstream from Spring Creek, 0.7 mi upstream from Kink Creek, 1.0 mi upstream from Portland General Electric Co. diversion dam, 24 mi southeast of Estacada, and at mile 6.1.


PERIOD OF RECORD. May 1909 to 1987. Monthly discharge only for some periods, published in WSP 1318.Published as both Oak Grove Fork of Clackamas River at proposed intake, near Cazadero, and Oak Grove Fork of Clackamas River at intake, near Cazadero, May 1909 to September 1910, as Oak Grove Fork of Clackamas River at intake, near Cazadero, October 1910 to September 1921, and as Oak Grove Fork at Portland General Electric Power Co. intake, October 1921 to September 1929.

REVISED RECORDS. WSP 1248: 1909, 1910(M), 1916, 1918, 1923, 1932. WSP 1935: 1914, 1921.

GAGE. Water-stage recorder. Datum of gage is 2,052.31 ft above National Geodetic Vertical Datum of 1929.May 21, 1909, to Nov. 17, 1911, nonrecording gage and Mar. 26, 1912, to Sept. 30, 1923, water-stage recorder, at various sites 0.7 mi downstream, below Kink Creek, at different datum.

REMARKS. Flow regulated since 1956 by Timothy Lake (station 14208600). No diversion upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,000 ft 3/s Jan. 7, 1923, gage height, 5.45 ft, site and datum then in use, from rating curve extended above 2,300 ft 3/s on basis of peak discharge for other stations In Clackamas River basin; minimum discharge, 208 ftVs Aug. 28-31, 1979.





1 37

14306090

120183


n

37 3737373737373737

250%

305 306308310315321327334360

520%

273 274276278282287292296314

1010%

257 258260261266271274278294

205%

244245246248252257260264280

502%

230 230232233238243245249265

1001%

220 221222224228234236240256



1 37

15306090



n

40 404040404040

250%

1480 132011601030933821736

520%

2150 1890155012801100950848

1010%

2660 23001820142011801000898

254%

3380 28802150157012501050943

502%

3960 33602400167012901070968

1001%

4600 38602660176013201090988



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


279


14209000 OAK GROVE FORK ABOVE POWERPLANT INTAKE, OR Continued





1 37

14306090

120183


n

30 303030.3030303030

250%

256 260264267278290305320364

520%

235 238240242250259270282323

1010%

226 228230231238246255266304

205%

219 221223224230237244254290

502%

212 213215218223227234242275

1001%

208 209211214218222227235266



1 37

1530 '6090



n

31 313131313131

250%

1330 1150975842741668627

520%

1930 167013601100929814751

1010%

2370 2060165012801060919839

254%

2960 26202060153012501060957

502%

3440 308024001720139011701050

1001%

3940 358027701930155012901150


DISCHARGE, IN FT VS, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

280


14209500 CLACKAMAS RIVER ABOVE THREE LYNX CREEK, OR

LOCATION.~Lat 45°07'30«, long 122°04'20", in NE1/4 sec.21, T.5 S., R.6 E., Clackamas County, Hydrologic Unit17090011, Mount Hood National Forest, on right bank 0.1 mi upstream from Three Lynx Creek, 0.25 mi downstream from powerplant, 17 mi southeast of Estacada, and at mile 47.8.


PERIOD OF RECORD.--April 1909 to December 1913, October 1921 to 1987. Prior to October 1911 (monthly discharge only), published in WSP 1318.

REVISED RECORDS.--WSP 1148: Drainage area. WSP 1248: 1910(M), 1912, 1948-50(M).

GAGE. Water-stage recorder. Datum of gage is 1,091.69 ft above National Geodetic Vertical Datum of 1929 (levels by Portland General Electric Co.). Apr. 23, 1909, to Jan. 4, 1914, nonrecording gage at about same site and datum. Nov. 1, 1921, to Dec. 27, 1924, water-stage recorder at present site at datum 0.91 ft higher.

REMARKS.--Minor regulation since May 1956 by Timothy Lake (station 14208600).


EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 68,200 ft 3 /s Dec. 22, 1964, gage height, 21.7 ft, from floodmark, from rating curve extended above 34,100 ft 3/s on basis of slope-area measurement at gage height 15.06 ft; minimum recorded discharge, 275 ft 3/s Sept. 23, 1987; minimum daily, 410 ft 3 /s Sept. 4, 1986.





1 37

14306090

120183


n

69 6969696969696969

250%

627 651663675694724754801

1060

520%

551 591606617632654677708881

1010%

511 562580590604623643672812

205%

478 538559569582599617646764

502%

441 513538548559574592622718

1001%

417 496524534545558576608692



1 37

15306090



n

70 707070707070

250%

14100 1070078805940475038103420

520%

20500 15700111007910601046904140

1010%

24700 19200132009130672051904530

254%

29700 238001580010600752057404950

502%

33300 273001780011600805061105230

1001%

36700 308001970012700854064505480



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

11800 17500 26200 32400


281


14210000 CLACKAMAS RIVER AT ESTACADA, OR

LOCATION. Lat 45°18'00", long 122°21'10", in NE 1/4 sec.19, T.3 S., R.4 E. r Clackamas County, Hydrologic Unit 17090011, on left bank 0.2 mi downstream from River Mill Dam, 1.5 mi northwest of Estacada, and at mile 23.1.


PERIOD OF RECORD. April 1908 to 1987. Monthly discharge only April 1908, published in WSP 1318. Published as "near Cazadero* January 1909 to September 1957.

REVISED RECORDS.--WSP 1248: 1908-9, 1910(M), 1916, 1917(M), 1922(M), 1923. WSP 1288: Drainage area (former site). WSP 1638: 1919(M).

GAGE. Water-stage recorder. Datum of gage is 296.93 ft above National Geodetic Vertical Datum of 1929 (levels by Portland General Electric Co.). See WSP 1738 for history of changes prior to Oct. 1, 1957. Oct. 1, 1957, to Feb. 16, 1965, water-stage recorder at same site at datum 2.00 ft higher.

REMARKS. Large diurnal fluctuations and some regulation caused by powerplants at River Mill Dam and, since 1958, North Fork Dam. Minor regulation since 1956 by Timothy Lake (station 14208600) . Two small diversions upstream from station for Oregon City and Estacada municipal water supply.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 86,900 ft 3/s Dec. 22, 1964, gage height, 18.36 ft; minimum discharge, 50 ft 3/s Mar. 10, 1961, from rating curve extended below 260 ft 3 /s; minimum daily, 285 ft 3/s

Oct. 4, 5, 1958, caused by filling of North Fork dam forebay.





1 37

143060?0120183


n

48 4848484848484848

250%

773 785794809834873922999

1390

520%

686701707719738766798841

1100

1010%

642 659664674691715741775977

205%

607 625630637653675697726891

502%

568 588592598613632651679807

1001%

543 564568572586605623650757



1 37

15306090



n

49 494949494949

250%

19600 14800110008200655052604720

520%

29200 220001540011100848065505770

1010%

35500 269001820013000961072906350

254%

43300 3320021500153001090081306980

502%

48900 3800024000170001180086907400

1001%

54300 4290026300186001260092007780



1725 80%

250%

5 20%

25 4%

50 2%

100 1%

37700 66400 74900


282


14210000 CLACKAMAS RIVER AT ESTACADA, OR--Continued





1 37

14306090

120183


n

28 2828282828282828

250%

593 678742777820881941

10301450

520%

425 556656699739789844913

1240

1010%

348 495616665703746796861

1140

205%

290 446585639675712757821

1070

502%

233 393553613646677715779

1000

1001%

200 360532596628654687753959



1 37

15306090



n

29 292929292929

250%

22800 17400127009190705056305070

520%

33200 256001790012000887070106230

1010%

39100 307002100013600990078406920

254%

45400 3670024600154001100088007730

502%

49500 4100027000165001180094808290

1001%

53000 45000293001760012500101008820



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n =

283


14211000 CLACKAMAS RIVER NEAR CLACKAMAS, OR

LOCATION.~Lat 45°23'36«, long 122°31'54", in NE 1/4 SW 1/4 sec.14, T.2 S., R.2 E., Clackamas County, Hydrologic Unit 17090011, on left bank 0.8 mi upstream from Johnson Creek, 2.1 mi southeast of Clackamas, and at mile 4.8.

DRAINAGE. 930 mi3 at gage, 936 mi3 at Gladstone Bridge 3.6 mi downstream, where high-flow discharge measurements were

made.

PERIOD OF RECORD. September 1911 to April 1912 published as "at Park Place" (daily discharge), October 1962 to September 1983.

GAGE. Water-stage recorder. Datum of gage is 50.68 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). Sept. 15, 1911, to Apr. 22, 1912, nonrecording gage at site 3.6 mi downstream at different datum. Oct. 1, 1962, to Sept. 10, 1969, water-stage recorder at site 300 ft downstream at present datum.

REMARKS. Diurnal fluctuations and some regulation by powerplants and several storage dams upstream, operated by Portland General Electric Co. Small diversions upstream from station for Estacada municipal water supply. All records given herein are for gage site.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 120,000 ft 3/s Dec. 22, 1964, gage height, 27.0 ft, from floodmarks; minimum, 336 ft 3/s Sept. 1, 11, 1969.





1 37

14306090

120183



n

20 2020202020202020

250%

680 749784824872943

101011101600

520%

557 643689730771835895984

1350

1010%

499 589643682721782837929

1240

205%

453 5456076446807407928871160

502%

405 4975686036366947438441080

1001%




1 37

15306090



n

21212121212121

250%

32400 2550019300137001030079007050

520%

45100 3680026100172001250099108770

1010%

51300 43400294001880013400110009710

254%

57200 507003250020100142001220010700

502%

60600 555003420020800145001290011400

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


284


14211500 JOHNSON CREEK AT SYCAMORE, OR

LOCATION.~Lat 45°28'40", long 122°30'24", in lot 2, SW 1/4 aec.13, T.I S., R.2 E., Multnomah County, Hydrologic Unit 17090012, on right bank 0.3 mi southwest of Sycamore station, 2.5 mi east of city limits of Portland, and at mile 10.2.



REVISED RECORDS. WSP 1318: 1941(M). WDR OR-75-1: 1974. HDR OR-77-1: Drainage area.


REMARKS. Slight diurnal fluctuation at low flow caused by recreational ponds upstream. Small diversions for irrigation upstream from atation.


EXTREMES FOR PERIOD OF RECORD. Maximum diacharge, 2,620 ft 3/s Dec. 22, 1964, gage height, 14.68 ft; minimum discharge, 0.08 ft 3/s Aug. 21, 1966.





1 37

14306090

120183

n

46 4646464646464646


250%

0 0001.1125

.6

.7

.8

.9

.0

.3

.6

.3

.4

0 00000113

520%

.3

.4

.4

.5

.6

.8

.1

.4

.2

1010%

0.2 0.30.30.40.50.70.91.12.4

6 000000ii

205%

.2

.2

.2

.3

.4

.5

.7

.0

.9

502%

0.1 0.10.20.20.30.40.60.81.5

100

0 00000001

1%

n .1.1.2.2.4.5.7.3



1 37

15306090



n

47 474747474747

250%

897 624430298227173150

520%

1290 846573396289221192

1010%

1510 961646449318244212

254%

1750 1080718504345265230

502%

1890 1140761538360278240

1001%

2020 1200796568371287248


DISCHARGE, IN FT*/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1220 1810 2180 2630 2940 3250

Systematic n - 47 historical n - 0 Weighted skew - -0.371

285


14211720 WILLAMETTE RIVER AT PORTLAND, OR (National stream quality accounting network station)

LOCATION.~Lat 45°31'07«, long 122°40'00«, in NW 1/4 NE 1/4 sec.3, T.I S., R.I E. f Multnomah County, Hydrologic Unit 17090012, in pier at east end of drawspan, on upstream side of Morrison Bridge, in Portland, and at mile 12.8.


PERIOD OF RECORD. October 1972 to 1987. Gage-height records collected in this vicinity since 1879 are in reports of the National Heather Service.

GAGE. Acoustic velocity meter (AVM) with water-stage and velocity-index recorder. Datum of gage is 1.55 ft above National Geodetic Vertical Datum of 1929 (levels by National Weather Service).

REMARKS. Flow regulated by many reservoirs upstream. Many diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 15 years, 33,310 ft 3/s, 24,130,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 283,000 ft3/s Jan. 18, 1974; maximum gage height, 23.84 ft Jan. 18, 1974; minimum daily discharge, 4,200 ft 3/s July 10, 1978.

EXTREMES OUTSIDE PERIOD OF RECORD. Floods of June 7, 1894, and June 1, 1948, reached stages of 33.0 ft and 30.0 ft, respectively, from information by National Weather Service.



MAGNITUDE AND PROBABILITY OF ANNOAL LOW FLOW BASED ON PERIOD OF RECORD 1974-1987


1 37

14306090

120183


n

14 1414141414141414

250%

6760 700072907420773082809310

1080013900

520%

5520 5960635065206850739081609300

11500

1010%

4910 548059106100646070207620852010500

205%

4430 51205580578061706760721079009700

50 1002% 1%

-

MAGNITUDE AND PROBABILITY OF ANNOAL HIGH FLOW BASED ON PERIOD OF RECORD 1973-1987


1 37

15306090



n

15 151515151515

250%

170100 1641001473001233001036008190070400

520%

215400 20810018190014520011960010120091100

1010%

234900 226700194700151200123100107900100600

254%

251700 242400204200154600124700112500109200

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n - historical n « Generalized 17b skew -

286

BEAR CREEK BASIN

14248700 BEAR CREEK NEAR SVENSEN, OR

LOCATION.--Lat 46e06'48", long 123e37'55", in NE 1/4 NE 1/4 sec.11, T.7 N., R.8 «., Clatsop County, Hydrologic Unit 17080006, on right bank 0.5 mi upstream from the Aatoria Reservoir Dam, 3.8 mi southeast of Svensen, and at mile 5.4.



GAGE. Hater-stage recorder. Elevation of gage is 700 ft, from topographic map.

REMARKS. Flow regulated by Wickiup Lake and Middle Lake. No diversions upstream from station.

AVERAGE DISCHARGE. 10 years (water years 1966-75), 17.9 ft 3 /s, 73.00 in/yr, 12,970 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 342 ft 3/s Jan. 11, 1972, gage height, 3.42 ft; minimum, 1.2 ft 3 /s Sept. 8, 9, 1967.





DISCHARGE, IN FT3/S, FORPERIOD(CONSECUTIVEDAYS) n

1 37

14306090

120183

250%

::

INTERVAL,EXCEEDANCE

520%

~

IN YEARS,INDICATEDAND ANNUAL

RECURRENCENON-

PROBABILITY, IN PERCENT

1010%

205%

502%

~

1001%

~

-



1 37

15306090



n

10 101010101010

250%

107 867059484137

520%

152 1169176605146

1010%

187 13710587675751

254%

502%

1001%




FT252 5 10 25 50 100 80% 50% 20% 10% 4% 2% 1%

106 147 JOT 248

Systematic n « 10historical n «0 Generalized 17b skew - 0.149

287

YOUNGS RIVER BASIN

14251500 YOUNGS RIVER NEAR ASTORIA, OR

LOCATION.--L*t 46e04'02", long 123°47'20«, in NW 1/4 sec.27, T.7 N., R.9 H., Clatiop County, Hydrologic Unit 17080006, on left bank 50 ft upstream from crest of Youngs River Falls, 2.7 mi southwest of Olney, and 9 mi south of Afteria.



GAGE. Hater-stage recorder. Datum of gage is 63.27 ft above National Geodetic Vertical Datum of 1929. Prior to Mar. 12, 1934, at site 1.2 mi upstream at different datum.

REMARKS. No regulation. Younga River-Lewis and Clark Hater District has diverted water 4 mi upstream from station for domestic use downstream from station since 1941.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,750 ft'/s Feb. 10, 1949, gage height, 13.66 ft, from rating curve extended above 2,300 ft'/s; minimum, 3.3 ft 3/* Sept. 22, 1951.




DISCHARGE,PERIOD(CONSECUTIVEDAYS)

1 37

14306090

120183

ININTERVAL,

FTJ/S , FORIN YEARS,



n

13 1313131313131313

555568

250%

.3

.4

.5

.9

.5

.2101327

4 4445679

520%

.4

.4

.6

.9

.5

.6

.9

.421

3 4445568

1010%

.9

.0

.2

.4

.1

.9

.9

.219

205%

PERCENT

SO2%

--

1001%


DISCHARGE, IN Fl'/S, FOR INDICATED RECURRENCEPERIOD(CONSECUTIVEDAYS)

1 37

15306090

n

14 141414141414

250%

2180 15301000751553437399

INTERVAL,EXCEEDANCE

520%

3040 20201330998751582507

IN YEARS, AND ANNUALPROBABILITY, IN

1010%

3470 226015101140881675565

254%

3900 2470169012901050790626

PERCENT

502%

II

1001%

MAGNITUDE'AND PROBABILITY OF INSTANTANEOUS PEAK FLOW BASED ON PERIOD OF RECORD 1928-1941

DISCHARGE, IN FT>/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 2 80% 50%

520%

10 10%

25 4%

50 2%

100 1%

2380 3030 3890 4460

Systematic n 14 historical n 0 Generalized 17b skew - 0.151

288

YOUNGS RIVER BASIN

14251500 YOUNGS RIVER NEAR ASTORIA, OR Continued




PERIOD < CONSECUTIVEDAYS)

1 37

14306090

120183


n

16 1616161616161616

250%

5.9 6.06.26.67.59.5121735

520%

4.5 4.64.85.15.77.08.41125

1010%

4.0 4.14.24.55.06.07.19.220

205%

3.6 3.73.84.14.55.36.37.617

502%

__ --

1001%



1 37

15306090



n

17 171717171717

250%

1900 14001050777611477460

520%

2340 17201280960766602561

1010%

2620 193014101060844677612

254%

2960 218015601170922764666

502%

--

~

1001%



DISCHARGE, IN FT /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AKD ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 86%

2 50%

520%

10 10%

25 4%

50 2%

100 1%

Systematic n - historical n - Generalized 17b skew -

289

PACIFIC SLOPE BASINS IN OREGON NEHALEM RIVER BASIN

14301000 NEHALEM RIVER NEAR FOSS, OR (National stream quality accounting network station)

LOCATION.~Lat 45°42'15", long 123°45'15", in NW 1/4 sec.35, T.3 N., R.9 W., TillamooK County, Hydrologic Unit 17100202, on right bank 0.2 mi upstream from Cook Creek, 2.2 mi northeast of Foss, and at mile 13.5.



GAGE. Water-stage recorder. Datum of gage is 32.60 ft above National Geodetic Vertical Datum of 1929 (State Highway Department bench mark). Prior to Nov. 11, 1939, nonrecording gage.

REMARKS. No regulation. Several small diversions for irrigation and domestic use upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 46,900 ftVs Jan. 20, 1972, gage height, 23.11 ft; minimum discharge, 34 ftVs Aug. 29-31, 1967.





1 37

14306090

120183


n

47 4747474747474747

250%

89909399

112138167217458

520%

68 69717686

103124156331

1010%

58 5961667489

106133277

205%

50 515458657893

117237

502%

43 434650566781

101198

1001%

3839414551617392

175



1 37

15306090



n

48 484848484848

250%

24700 214001640012600957075506800

520%

30700 2660019900155001160092908370

1010%

34300 29800219001690012600102009150

254%

38500 33600240001840013600112009940

502%

41300 362002540019300142001190010400

1001%

44100 387002670020000147001250010800



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

21400 27400 34800 39200 44500 48100 51600

Systematic n » 48 historical n » Weighted skew - -0.149

WILSON RIVER BASIN

14301500 WILSON RIVER NEAR TILLAMOOK, OR

LOCATION.~Lat 45e29'05", long 123e41'20", in SW 1/4 SE 1/4 sec.8, T.I S., R.8 W., Tillamook County, Hydrologic Unit 17100203, on right bank 0.2 mi upstream from Negro Jack Creek, 8.0 mi east of Tillamook, and at mile 11.4.

DRAINAGE AREA. 161 mi2 , at cableway, 2.0 mi downstream, where all discharge measurements are made.

PERIOD OF RECORD. October 1914 to September 1915, August to November 1916, July 1931 to 1987. Prior to January 1915 monthly discharge only, published in WSP 1318.

REVISED RECORDS. WSP 1398: 1953. WSP 1738: Drainage area.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 71.89 ft above National Geodetic Vertical Datum of 1929. Dec. 18, 1914, to Nov. 4, 1916, nonrecording gage at site 2.8 mi downstream at different datum. July 30, 1931, to Sept. 30, 1938, nonrecording gage at site 2.82 mi downstream at datum 28.83 ft lower. Oct. 1, 1938, to Oct. 17, 1968, water-stage recorder at site 2.1 mi downstream at datum 29.76 ft lower.

REMARKS. No regulation. Small diversions for domestic use upstream from station.

AVERAGE DISCHARGE. 57 years (water years 1915, 1932-87), 1,186 ft 3 /s, 100.04 in/yr, 859,300 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 36,000 ft 3/s Jan. 20, 1972, gage height, 16.91 ft; maximum gage height, 20.26 ft Dec. 22, 1964 (site and datum then in use); minimum discharge, 32 ft 3/s Sept. 5, 1973, but may have been less for short period following a landslide Jan. 31, 1965.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood in February 1916 reached a stage of 20.8 ft, from floodmark, site and datum then in use.





1 37

14306090

120183


n

55 5555555555555555

250%

6970727583

. 97114143267

520%

55 565861667586

104197

1010%

49 50525458657590

168

205%

44 45474953586679

148

502%

38 39414347515870

128

1001%

35 36384043475464

116



1 37

15306090



n

57 575757575757

250%

12800 953069005030385030702790

520%

16900 1240088506430485038203410

1010%

19400 14300101007330545042603730

254%

22600 16800118008430617047704060

502%

24800 18800131009240667051304260

1001%

27100 209001430010000715054704440



1.25 80%

250%

520%

10 10%

25 4%

50 2%

100 1%

12700 30300



TRASK RIVER BASIN

14302500 TRASK RIVER NEAR TILLAMOOK, OR

LOCATION. Lat 45e26'25», long 123°43'00", in NW 1/4 NW 1/4 sec.31, T.I S. r R.8 W., Tillamook County, Hydrologic Unit 17100203, on right bank 0.6 mi upstream from Gold Creek, 6.2 mi east of Tillamook, and at mile 10.4.


PERIOD OF RECORD. July 1931 to September 1955, October 1961 to June 1972.

GAGE. Water-stage recorder. Datum of gage is 58 ft above National Geodetic Vertical Datum of 1929 (river-profile survey)

REMARKS. No regulation. Water diverted from the J. W. Barney Reservoir since July 1, 1972.

AVERAGE DISCHARGE. 34 years (water years 1932-55, 1962-72), 966 ft j /s, 90.47 in/yr, 699,900 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 23,000 ftVs Dec. 22, 1964, gage height, 13.34 ft; minimum, 42 ftVs Oct. 15-18, 1952, Sept. 28, 1967.





1 37

14306090

120183


n

33 3333333333333333

250%

71 7275798698

112136232

520%

SB 596164707888

103176

1010%

5253555762697790

151

205%

47 48505256626980

132

502%

4243444650556171

114

1001%

38 39414247515665

102



1 37

15306090



n

34 343434343434

250%

9550 728054504170317025102300

520%

12200 929069505250397030702720

1010%

14000 1080079905880442033702920

254%

16500 1280093406590491037003100

502%

18400 14500104007080523039103210

1001%

20400 16300115007530551041003300



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

9930 12600 16500 19300 22900 25800 28800

Systematic n - 36 historical n Weighted skew - 0.437

52

292

NESTUCCA RIVER BASIN

14302900 NESTUCCA RIVER NEAR FAIRDALE, OR

LOCATION. Lat 45°18'40", long 123°25'05", in SW 1/4 NW 1/4 sec.15, T.3 S., R.6 W., Yamhill County, Hydrologic Unit 17100203, on right bank 100 ft upstream from former Meadow Lake, 0.4 mi downstream from Walker Creek, 5.3 mi southwest of Fairdale, and at mile 49.3.


PERIOD OF RECORD. June I960 to 1987.

GAGE. Water-stage recorder. Datum of gage is 1,778.99 ft above National Geodetic Vertical Datum of 1929 (levels by city of McMinnville).

REMARKS. Flow regulated since March 1969 by McGuire Lake about 1 mi upstream from station (station 14302800); during winter months lake is empty except when inflow exceeds capacity of outlet tunnel.

AVERAGE DISCHARGE. 27 years (water years 1961-87), 32.1 ftVs, 70.54 in/yr, 23,260 acre-ft/yr, adjusted for storage and diversion.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 876 ft 3/s Dec. 22, 1964, gage height, 10.43 ft; minimum discharge, 0.41 ftVs Sept. 11, 1986.





1 37

14306090

120183

IN FTJ/SINTERVAL,EXCEEDANCE

n

17 1717171717171717

2 22223348

250%

.0

.1

.2

.5

.8

.1

.7

.8

.4

1 11112236

520%

.3

.3

.4

.5

.7

.1

.5

.3

.2

, FORIN YEARS,

INDICATED RECURRENCEAND

PROBABILITY,

1 11111225

1010%

.0

.0

.1

.1

.3

.8

.1

.7

.2

0 00011124

ANNUAL NON-IN PERCENT

205%

.8

.8

.8

.9

.0

.5

.8

.3

.5

502%

--

1001%

--



1 37

15306090



n

18 181818181818

250%

279 2281711391078471

520%

369 28922418614510991

1010%

41431825121016612098

254%

458 343279233188130104

502%

-

1001%

--



1.25 80%

2 50%

520%

10 10%

25 4%

50 2%

100 1%

Systematic n - historical Generalized 17b skew -

293

NESTUCCA RIVER BASIN

14303000 NESTUCCA RIVER NEAR MCMINNVILLE, OR

LOCATION.~Lat 45°19'30", long 123°27'00-, in E-l/2 sec.8, T.3 S. r R.6 W. f Yamhill County, Hydrologic Unit 17100203, 0.2 mi downstream from Meadow Lake and 14 mi northwest of McMinnville.

DRAINAGE AREA. 12 miz , approximately.



REMARKS. No diversion upstream from station. Flow slightly regulated by dam at outlet of Meadow Lake. In summer, all of flow leaks under earth fill dam.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,480 ft 3/s Dec. 22, 1933, and Dec. 27, 1937, gage height, 5.1 ft, from rating curve extended above 800 ft /a; minimum, 1.0 ft /s Oct. 11, 1929.





1 37

14306090

120183

ININTERVAL,

FT3/S , FORIN YEARS,

INDICATEDAND

EXCEEDANCE PROBABILITY,

n

15 1515151515151515

1 11222236

250%

.9

.9

.9

.0

.1

.4

.8

.4

.9

1 11111225

520%

.5

.5

.5

.6

.7

.8

.1

.5

.0

1 11111124

1010%

.3

.3

.3

.4

.5

.6

.8

.1

.3

111111113

ANNUALRECURRENCENON-

IN PERCENT

205%

.1

.2

.2

.2

.3

.5

.7

.9

.8

502%

:: --

1001%

--



1 37

15306090



n

16 161616161616

250%

613 449300205155121106

520%

934 685453296217162137

1010%

1140 849570362259189155

254%

1390 1060738452311222176

502%

1001%

__ --



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

476 731 1140 1440 1860

Systematic n - 16 historical n - Generalized 17b skew - 0.108

NESTOCCA RIVER BASIN

14303600 NESTUCCA RIVER NEAR BEAVER, OR

LOCATION. Lat 45°16'00", long 123°50'45-, in SE 1/4 NE 1/4 sac.36, T.3 S., R.10 W., Tillamook County, Hydrologic Unit 17100203, on right bank 150 ft upstream from Saling Creek, 1.2 mi southwest of Beaver, and at mile 13.5.



GAGE. Water-stage recorder. Elevation of gage is 43 ft, from river profile map.


AVERAGE DISCHARGE.--23 years, 1,068 ft 3 /s, 80.57 in/yr, 773,800 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 29,400 ft 3 /s Jan. 11, 1972, gage height, 22.0 ft, from floodmark; minimum discharge, 32 ft 3/s Sept. 14, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Nov. 20, 1962, reached a stage of 23.4 ft, discharge, 32,500 ft 3/s caused by failure of Meadow Lake Dam.





1 37

14306090

120183


n

22 2222222222222222

250%

6970727584

102124155262

5v 20%

54 555659657691

110195

1010%

47 48495157667793

167

205%

41 42444651586781

147

502%

36 37384044505869

128

1001%




1 31

15306090



n

23 232323232323

250%

9830 803059404520350028302480

520%

13800 1100077605780431035303140

1010%

16300 1300089106600480039203500

254%

19500 15400103007610536043603900

502%

21900 17300113008370575046504160

1001%

::

1



1.25 80%

250%

520%

10 10%

25 4%

50 2%

1001%

7800 11600 20900 25900 29800

Systematic n - 23 historical n Weighted skew - -0.037

SILETZ RIVER BASIN

14305SOO SILETZ RIVER AT SILETZ, OR

LOCATION.--Lat 44°42'55", long 123053'10", in NW 1/4 SH 1/4 aec.ll, T.10 S., R.10 H., Lincoln County, Hydrologic Unit 17100204, on right bank, 1.8 mi downstream from Baker Creek, 1.5 mi east of Siletz, and at mile 42.6.


PERIOD OF RECORD. October 1905 to November 1911, January to May 1912, January to June 1924, November 1924 to 1987. Prior to December 1905 monthly discharge only, published in NSP 1318.

REVISED RECORDS. NSP 1935: 1943, 1947-49(M), 1953-58(M).

GAGE. Water-stage recorder. Datum of gage is 102.32 ft above National Geodetic Vertical Datum of 1929. Oct. 1, 1905, to Sept 30, 1938, nonrecording gage at various sites within 2.5 mi downstream at different datuma.

REMARKS. Slight regulation from logponds. Small diversions upstream from station for irrigation.

AVERAGE DISCHARGE. 8 years (water years 1906-11, 1926-87), 1,550 ft'/s, 104.20 in/yr, 1,123,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD (1905-12, 1924-38). Maximum discharge, 34,600 ft 3/s Nov. 22, 1909, gage height, 24.6 ft, site and datum then in use; minimum observed discharge, 51 ftVs Dec. 6, 7, 1929.

EXTREMES FOR PERIOD OF RECORD (1938-87). Maximum discharge, 32,200 ft 3/s Jan. 28, 1965, gage height, 27.32 ft, present site and datum; minimum discharge, 48 ft 3/s Sept 25, 26, Oct. 4, 1965, Sept. 28, 29, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Nov. 20, 1921, reached a stage of 31.6 ft, at site 2.5 ml downstream at different datum, from floodmarlc, discharge, 40,800 ft'/s, from rating curve extended above 17,000 ft /s.





1 37

14306090

120183

DISCHARGE, IN FT*/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EX CEE DANCE PROBABILITY, IN PERCENT

n

65 6565656565656565

250%

77 78818696

115140177331

520%

636467717790

104124234

1010%

57 596165708090

104197

205%

53 55586165728091

171

502%

4951545760657178146

1001%

4649525457616671132



1 37

15306090



n

66666666666666

250%

16600 1280091906700513040003620

520%

21500 16000114008190622049204400

1010%

24600 18000127009050680054404800

254%

28300 2040G1430010000740060205210

502%

31000 221001540010700778064105470

1001%

33600 237001650011300812067705690



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

ISO1%

15600 20400 26100 29400 33300 36000 38500

Systematic n » 69 historical n - 82 Weighted skew - -0.277

296

YAQUINA RIVER BASIN

14306030 YAQUINA RIVER NEAR CHITWOOD, OR

LOCATION.--Lat 44C39'29", long 123C50'15", in NE 1/4 SW 1/4 aec.31, T.10 S., R.9 W., Lincoln County, Hydrologic Unit 17100204, on laft bank 200 ft below Thornton Creek and 1.1 mi west of Chitwood, and at mile 29.3.






EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,150 ft 3/s Nov. 16, 1973, gage height, 14.43 ft; minimum discharge, 2.8 ft 3/s Sept. 27, 1974.





1 37

14306090

120183


n

14 1414141414141414

250%

7.0 7.37.68.49.712151841

520%

4.95.15.56.06.98.9111427

1010%

4.1 4.34.75.15.87.59.41222

205%

3.6 3.74.14.45.06.58.31118

502%

_ _ -

1001%

_ _ -



1 37

15306090



n

15 151515151515

250%

2870 226016801200983754636

520%

3530 2790207014201140922825

1010%

3830 3050225015401200995923

254%

4090 331024201660125010601020

502%

_ ~

1001%

_ _


DISCHARGE, IN FT J/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2720 3400 4240 4750 5360

Systematic n - 15 historical Generalized 17b skew - -0.047

n - 0

297

YAQOINA RIVER BASIN

14306036 MILL CREEK NEAR TOLEDO, OR

LOCATION. Lat 44e34'35", long 123°54'25", in NW 1/4 NE 1/4 sec.33, T.ll S., R.10 W., Lincoln County, Hydrologic Unit 17100204, on left bank 1,200 ft downstream from diversion dam, and 3.5 mi southeast of Toledo.



GAGE. Hater-stage recorder. Elevation of gage is 80 ft, from topographic map. Prior to July 13, 1968, at site 1,200 ft upstream at different datum.

REMARKS. Except for average discharge, figures not adjusted for diversion for city of Toledo municipal supply. Occasional fluctuation caused by city of Toledo diversion dam, capacity, 250 acre-ft.

COOPERATION. Record of monthly diversion furnished by city of Toledo.

AVERAGE DISCHARGE. 14 years, 21.2 ftVs, 68.87 in/yr, 15,360 acre-ft/yr, adjusted for diversion.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 609 ft /s Jan. 27, 1965, gage height, 5.83 ft, site and datum then in use, from rating curve extended above 65 ft /s on basis of slope-area measurement of peak flow; no flow Sept. 27, Oct. 3, 4, 1961, Sept. 26, 1962.





1 37

14306090

120183


n

12 1212121212121212

250%

0.3 0.40.50.60.91.21.41.83.4

520%

0.1 0.10.30.40.50.70.91.22.6

1010%

0.1 0.10.20.30.40.60.70.92.2

205%

__ --

502%

--

--

1001%

:: --MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

13 131313131313

250%

246192148111816254

520%

314 233174133977867

1010%

370 2661911461058774

254%

__ --

502%

__ --

1001%

__ -~



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

283 360 514

Systematic n - 14 historical n Generalized 17b skew - -0.077

298

ALSEA RIVER BASIN

14306100 NORTH FORK ALSEA RIVER AT ALSEA, OR

LOCATION.~Lat 44°22'45 11 , long 123°35'40", in SE 1/4 aec.l, T.14 S., R.8 W., Benton County, Hydrologic Unit 1*7100205, on left bank at Alaea, 0.2 mi upstream from bridge on Lobater Valley Road, 0.7 mi upatream from confluence with South Fork, and at mile 49.4.




REMARKS. No regulation. Some diversions by pumping upatream from atation.

AVERAGE DISCHARGE. 30 yeara, 279 ft 3 /a, 60.14 in/yr, 202,100 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum diacharge, 14,100 ft 3/a Dec. 22, 1964, gage height, 14.57 ft, from rating curve extended above 2,900 ft 3 /s on basla of alope-area meaaurement at gage height 11.80 ft; minimum diacharge, 8.3 ft 3 /a June 8, Sept. 19, 1979.


[n - number of valuea uaed to compute atatiatica]



1 37

14306090

120183


n

29 2929292929292929

250%

17 1718192023263153

520%

14 1515161819222541

1010%

13 1414151618202336

205%

12 1314141617192233

502%

12 1213141516172029

1001%

11 1212131415171927



1 37

15306090



n

30 303030303030

250%

3530 2630189013201020797699

520%

4990 36902540171012501010884

1010%

5950 44102970198013801120973

254%

7160 536035002300151012301060

502%

8050 608039002550159013001100

1001%

8940 682042902800167013701140



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3480 4730 6680 8130 13600

Systematic n - 30 historical n - 0 Weighted skew - 0.422

299

ALSEA RIVER BASIN

14306400 FIVE RIVERS NEAR FISHER, OR

LOCATION. Lat 44°20'15", long 123049'35", W-l/2 sec.19, T.14 S., R.9 W., Lincoln County, Hydrologic Unit 17100205, in Siuslaw National Forest, on left bank at downstream side of abandoned highway bridge, 500 ft downstream from Lobster Creek, 3.2 mi north of Fisher, and at mile 3.3.


PERIOD OF RECORD. August 1958 to September 1963, October 1967 to 1987.

REVISED RECORDS. NSP 1718: 1959.

GAGE. Nater-stage recorder. Elevation of gage is 130 ft from topographic map.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 17,200 ftVs Jan. 21, 1972, gage height, 21.08 ft; minimum discharge, 16 ftVs Oct. 1, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Dec. 22, 1964, reached a stage of 22.3 ft, from floodmarks, discharge, 19,000 ft /s from rating curve extended above 10,000 ft /s.





1 37

14306090

120183


n

21 2121212121212121

250%

27 2728293237445498

520%

23 2324252731364375

1010%

21 2223242629333965

205%

202122232527303657

502%

19 2021222426283450

1001%

-



1 37

15306090



n

23 232323232323

250%

6450 489035702490197015701360

520%

8950 671046303140241019701730

1010%

10600 794053203570266021901930

254%

12700 954061604100292024202130

502%

14300 1080067804500310025602250

1001%

-~



1.25 80%

250%

520%

10 10%

25 4%

50 2%

100 1%

6090 8590 12300

Systematic n - 24 historical n - 29 Weighted skew - 0.198

300

ALSEA RIVER BASIN

14306500 ALSEA RIVER NEAR TIDEWATER, OR (National stream quality accounting network station)

LOCATION. Lat 44°23'10", long 123°49'50«, in NW 1/4 NW 1/4 sec.6, T.14 S., R.9 W., Lincoln County, Hydrologic Unit 17100205, on right bank 0.9 mi downstream from Grass Creek, 2.5 mi upstream from Scott Creek, 3.8 mi southeast of Tidewater, and at mile 21.0.



GAGE. Water-stage recorder. Datum of gage is 48.16 ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 16, 1939, nonrecording gage at present site and datum.

REMARKS. No regulation. Diversion for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 41,800 ft 3/s Dec. 22, 1964, gage height, 27.44 ft; minimum discharge, 45 ftVs Sept. 26, 27, 1965.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood on or about Feb. 3, 1890, reached a stage of 29.5 ft, from floodmark (discharge not determined).





1 37

14306090

120183


n

46 4646464646464646

250%

76 77798390

106122149278

520%

63 646770758698

119210

1010%

58 596164697888

106181

205%

53 54566064728197

159

502%

49 50525559667388

137

1001%

4647495256626983

124



1 37

15306090



n

47 474747474747

250%

16900 1320097607060557043303860

520%

22000 17400127008980683054204840

1010%

24900 199001440010000740059605300

254%

28300 229001640011200790064905740

502%

30600 250001770011900817068105990

1001%

32700 270001900012600838070806190



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

27000 35700 42400


301

ALSEA RIVER BASIN

14306600 DRIFT CREEK NEAR SALADO, OR

LOCATION. Lat 44°30'50", long 123°50'50", in NE 1/4 sec.24, T.12 S., R.10 W., Lincoln County, Hydrologic Unit 17100205, on right bank 0.2 mi downstream from Cape Horn Creek, 4.1 mi southwest of Salado, 8.5 mi southeast of Toledo, and at mile 21.8.


PERIOD OF RECORD. September 1958 to September 1963, June 1965 to September 1970.




EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,500 ft 3/s Nov. 25, 1962, gage height, 8.34 ft, from rating curve extended above 1,300 ft 3/s on basis of slope-area measurement at gage height 8.11 ft; maximum gage height, 8.79 ft Dec. 4, 1966 (backwater from debris); minimum discharge, 3.8 ft 3/s Sept. 7, 8, 1958.






1 37

14306090

120183


FT3/S, FORIN YEARS,

INDICATEDAND ANNUAL

RECURRENCENON-


2 550% 20%

:: ::

1010%

::

205%

502%

1001%



1 37

15306090



n

10 101010101010

250%

1360 1070780562413319285

520%

1600 1200914692496381330

1010%

1750 1250997774551417354

25 50 1004% 2% 1%

--

--



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

Systematic n - 11 historical n - 0 Generalized 17b skew = -0.067

302

ALSEA RIVER BASIN

14306700 NEEDLE BRANCH NEAR SALADO, OR

LOCATION. Lat 44 030'55«, 123°51'20«, in SW 1/4 sec.24, T.12 S., R.10 W., Lincoln County, Hydrologic Unit 17100205, on right bank 500 ft upstream from mouth, 4.6 mi west of Salado, and 8.5 mi southeast of Toledo.

DRAINAGE AREA. 0.27 mi 2 , computed as 174.64 acres on basis of field survey by Oregon State University.





EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 64 ft 3/s Jan. 11, 1972, gage height, 3.75 ft; minimum, 0.01 ft 3/s Sept. 8, 9, 1962, Sept. 18 to Oct. 3, 1965, Aug. 17, Sept. 14, 23-28, 1967, many days In August and September 1970, Aug. 26, 1971, many days In August and September 1972, several days in August and September 1973.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

14 1414141414141414


250%

0.0 0.00.00.00.00.10.10.10.3

520%

0, 0,0,0,0,0,0,0,0,

.0

.0

.0

.0

.0

.0

.0

.1

.2

1010%

0, 0,0,0,0,0,0,0,0,

.0

.0

.0

.0

.0

.0

.0

.1

.1

205%

0.0 0.00.00.00.00.00.00.00.1

50 1002% 1%

:: :: . ~-MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

15 151515151515

250%

21 1511

8.26.14.64.1

520%

27191410

7.56.05.1

1010%

33 221511

8.36.95.8

254%

43 261713

9.28.06.5

50 1002% 1%

:: :: -- --MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.2525102550100 80% 50% 20% 10% 4% 2% 1%

24 30 39 45 51 ~


303

ALSEA RIVER BASIN

14306800 FLYNN CREEK NEAR SALADO, OR

LOCATION. Lat 44°32'20", long 123°51'05", in SW 1/4 sec.12, T.12 S., R.10 W. r Lincoln County, Hydrologic Unit 17100205, on right bank 1,000 ft upstream from mouth, 3.4 mi west of Salado, and 6.9 mi southeast of Toledo.

DRAINAGE AREA. 0.78 mi2 , computed as 501.96 acres on basis of field survey by Oregon State University.




AVERAGE DISCHARGE. 15 years (water years 1959-73), 4.37 ft 3/s, 76.08 in/yr, 3,170 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 139 ft 3/s Jan. 11, 1972, gage height, 4.73 ft; minimum, 0.07 ft 3/s Sept. 27, 1967.





1 37

14306090

120183

n

14 1414141414141414


250%

0 00000000

.2

.2

.2

.2

.2

.3

.3

.4

.8

520%

0, 0,0.0,0,0,0,00,

.1

.1

.1

.1

.2

.2

.2

.3

.5

10 2010%

0, 00,0,00.000,

.1

.1

.1

.1

.1

.1

.2

.2

.4

0, 000,0,0,0,00,

5%

.1

.1

.1

.1

.1

.1

.2

.2

.4

50 1002% 1%



1 37

15306090



n

15 151515151515

250%

45 362922161211

520%

60 463427191513

1010%

74 543830211715

254%

97 674433232017

50 1002% 1%



T72525102550100 80% 50% 20% 10% 4% 2% 1%

47 64 86 foi120 «


304

ALSEA RIVER BASIN

14306810 DEER CREEK NEAR SALADO, OR

LOCATION. Lat 44°32°05", long 123°52°35", in SW 1/4 sec.11, T.12 S., R.10 W., Lincoln County, Hydrologic Unit 17100205, Siuslaw National Forest, on right bank 1,000 ft upstream from mouth, 4.6 mi west of Salado, and 6.5 mi southeast of Toledo.

DRAINAGE AREA. 1.17 mi2 , computed as 749.5 acres on basis of field survey by Oregon State University.




AVERAGE DISCHARGE. 15 years (water years 1959-73), 6.49 ftVs, 75.33 in/yr, 4,700 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 201 ft 3/s Jan. 28, 1965, gage height, 4,21 ft; maximum gage height, 4.39 ft Jan. 20, 1972 (backwater from log); minimum discharge, 0.15 ft 3/s Sept. 2, 14-16, 1972.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

14 1414141414141414


250%

0. 0.0.0.0.0.0.0.1.

.3

.3

.3

.3

.4

.4

.5

.6

.3

520%

0 000,00000

.2

.2

.2

.3

.3

.3

.4

.4

.9

10 2010%

0, 0,0,0,0,0,0,00,

.2

.2

.2

.2

.2

.3

.3

.4

.8

0, 0,0.0,0,0.0.0,0.

5%

,2 .2,2.2,2.2.3.3,7

50 1002% 1%



1 37

15306090



n

15 151515151515

250%

70 544232241816

520%

95 695140292319

1010%

117 835844312622

254%

154 1046849352925

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

103 156

Systematic n = 15 historical r Generalized 17b skew = -0.074

305

BIG CREEK BASIN

14306900 BIG CREEK NEAR ROOSEVELT BEACH, OR

LOCATION. Lat 44°10'05», long 124°03'55", in SE 1/4 SE 1/4 sec.13, T.16 S., R.12 W., Lane County, Hydrologic Unit 17100205, on right bank 1.0 mi downstream from Frying Pan Creek, 2.5 mi east of Roosevelt Beach.



GAGE.--Water-stage recorder. Elevation of gage is 141 ft, by barometer.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,150 ft 3 /s Nov. 30, 1975, gage height, 6.90 ft; minimum discharge, 3.8 ft 3/s Oct. 15, 1979.





1 37

14306090

120183


n

14 1414141414141414

250%

6.2 6.36.46.87.69.3111423

520%

5.5 5.55.76.06.68.08.71118

1010%

5.1 5.25.45.76.27.38.09.316

205%

4.9 4.95.25.45.96.97.58.314

50 1002% 1%



1 37

15306090



n

15151515151515

250%

840 668506374306242213

520%

1100 852637459372304278

1010%

1250 951709509409341317

254%

1410 1060789566451385361

50 1002% 1%

_ _



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

739 1060 1490 1770 2120


306

SIUSLAW RIVER BASIN

14307500 LAKE CREEK AT TRIANGLE LAKE, OR

LOCATION. Lat 44°09'40", long 123°34'10", in SW 1/4 sec.20, T.16 S., R.7 W., Lane County, Hydrologic Unit 17100206, on right bank 500 ft downstream from outlet of Triangle Lake and 3.0 mi southwest of Blachly.




REMARKS. Flow regulated by natural storage in Triangle Lake. No diversion upstream from station.

AVERAGE'DISCHARGE. 24 years (water years 1932-55), 210 ft 3 /s, 152,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,180 ft 3/s Feb. 18, 1949, gage-height, 8.33 ft, from rating curve extended above 2,400 ft /s by logarithmic plotting; maximum gage height, 8.68 ft Feb. 18, 1949 (backwater from debris); minimum discharge, 2.7 ftVs Aug. 1, 1944; minimum dally, 4.2 ft 3 /s Oct. 18, 19, 1952.





137

14306090

120183

n

23 2323232323232323


250%

9.6 9.69. 9101113141835

777789

520%

.1

.2

.4

.7

.4

.6111324

6 666789

1010%

.1

.2

.3

.7

.3

.4

.41120

5 5556789

205%

.4

.5

.6

.9

.5

.6

.5

.616

4 4455678

502%

.6

.8

.8

.2

.8

.9

.6

.313

1001%

_



137

15306090



n

24 242424242424

250%

2140 176013301030804620553

520%

3110 246018201300951737672

1010%

3680 286020901420998782724

254%

4330 3320239015201030816769

502%

4760 3620259015701040831793

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1440 2220 4900


307

SIUSLAW RIVER BASIN

14307580 LAKE CREEK NEAR DEADWOOD, OR

LOCATION.~Lat 44°04'58", long 123°47'05-, in NW 1/4 NW 1/4 sec.21, T.17 S., R.9 W., Lane County, Hydrologic Unit 17100206, on right bank 0.2 mi upstream from Indian Creek, 1.5 mi southwest of Deadwood, and at mile 2.6.




REMARKS. Flow slightly regulated by natural storage in Triangle Lake. Several diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 20,400 ft 3/s Dec. 25, 1980, gage height, 15.86 ft; minimum discharge, 12 ft 3/s Aug. 14, 15, 17, 18, 1977.





1 37

14306090

120183


n

19 1919191919191919

250%

26 26272933394759

112

520%

19 2021222530374685

1010%

16 1718192227324173

205%

14 1515161925293765

50 1002% 1%




1 37

15306090



n

20 202020202020

250%

7450 614046203380267020901820

520%

10600 853060304250323026402350

1010%

12800 1020069504780352029302610

254%

15800 1230080805420383032302880

502%

18100 1390089205880402034103030

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

20200 22900


308

SIOSLAW RIVER BASIN

14307620 SIUSLAW RIVER NEAR MAPLETON, OR (National stream quality accounting network station)

LOCATION. Lat 44003'45", long 123°52'55«, in SW 1/4 NW 1/4 sec.27, T.17 S., R.10 W., Lane County, Hydrologic Unit 17100206, on right bank 250 ft above Shoemaker Creek, 2.5 mi northwest of Mapleton, and at mile 23.7.



GAGE. Water-stage recorder and crest-stage gage. Elevation of gage is 41 ft, from topographic map.


AVERAGE DISCHARGE. 20 years, 2,141 ft3 /s, 49.45 in/yr, 1,551,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 49,400 ft 3 /s Jan. 21, 1972, gage height, 28.45 ft; minimum discharge, 45 ftVs Aug. 18, 19, 1977.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of December 1964 reached a stage of about 28 ft, from information by local residents (discharge not determined).





1 37

14306090

120183



n

19 1919191919191919

250%

899195

101112137164204367

520%

66 68717686

105126159281

1010%

57 5962667692

111141246

205%

51 5355596882

100129221

50 1002% 1%

_ _



1 37

15306090



n

19 191919191919

250%

23300 192001410010000789062305450

520%

32900 265001860013000965079607040

1010%

38800 3090021300147001050088107760

254%

45800 3600024500168001130096108420

502%

50600 39500266001830011800101008770

1001%

-



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

18900 27000 38200 45500 54700 61500

Systematic n = 20 historical n Generalized 17b skew - -0.128

309

SIUSLAW RIVER BASIN

14307645 NORTH FORK SIUSLAW RIVER NEAR MINERVA, OR

LOCATION. Lat 44°02'50", long 124°00'10", in NW 1/4 SW 1/4 sec.34, T.17 S. f R.ll W. f Lane County, Hydrologic Unit 17100206, on left bank 10 ft downstream from county road bridge, 0.3 mi upstream from Condon Creek, 2.7 mi southwest of Minerva, and at mile 13.09.


PERIOD OF RECORD. October 1967 to September 1985 <discontinued).




EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,400 ft 3 /s Dec. 25, 1980, gage height, 24.36 ft; minimum discharge, 11 ft 3/s Sept. 9-11, 17, 18, 1980.





1 37

14306090

120183



n

17 1717171717171717

250%

15 1616171924293862

520%

12 1314141619222847

1010%

11 1213131517192341

205%

11 1112121416172037

50 1002% 1%

.



1 37

15306090



n

18 181818181818

250%

2450 "

2090170012501030815713

520%

3090 25702030149012001010900

1010%

3530 28502200163012901110995

254%

4090 317023601790138012201090

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2230 2870 4120 4680

Systematic n = 18 historical n = 0 Generalized 17b skew - -0.173

310

UMPQUA RIVER BASIN

14307700 JACKSON CREEK NEAR TILLER, OR

LOCATION. Lat 42°57'15", long 122049'40«, in SW 1/4 NE 1/4 sec.21 T.30 S., R.I W., Douglas County, Hydrologic Unit 17100302, on right bank 0.5 mi upstream from Chapman Creek, 0.8 mi downstream from Beaver Creek, 6.5 mi northeast of Tiller, and at mile 3.0. Records include flow of Chapman Creek.

DRAINAGE AREA. 152 mi , at cableway 0.6 mi downstream where all discharge measurements are made.


GAGE. Hater-stage recorder. Datum of gage is 1,240.25 ft above National Geodetic Vertical Datum of 1929 (levels by Douglas County Water Resources Department).



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 21,100 ft 3/s Dec. 22, 1964, gage height, 18.0 ft, from floodmark, from rating curve extended above 5,100 ft 3/s and basin runoff comparison; minimum discharge, 11 ft 3 /s Jan. 6, 1977, Nov. 13, 1978, result of freezeup.





1 37

14306090

120183


n

30 3030303030303030

250%

17 1818192022253172

520%

15 1516161719212549

1010%

14 1414151618202339

205%

13 1314141517192133

502%

12 1213131516181927

1001%

11 1212131416181823



1 37

15306090



n

31 313131313131

250%

4100 2820186013001010790697

520%

6380 44702880189013901080936

1010%

7720 558036002290161012701070

254%

9190 699045502780188014801220

502%

10100 802052803150206016301320

1001%

11000 903060303520223017801410



1.25 80%

3630

Systematic

250%

5740

n = 31

5 20%

9130

historical

10 10%

11600

n = 0

25 4%

15100

50 2%

17900

100 1%

20900

311

OMPQUA RIVER BASIN

14308000 SOUTH UMPQUA RIVER AT TILLER, OR

LOCATION.~Lat 42e55'50", long 122°56'50", In NE 1/4 sec.33, T.30 S., R.2 H., Douglas County, Hydrologlc Unit 17100302, Umpqua National Forest, on left bank 0.3 ml upstream from bridge on State Highway 227 at Tiller, 0.3 mi upstream from Elk. Creek, and at mile 187.31.


PERIOD OF RECORD. October 1910 to December 1911, October 1939 to 1987. Monthly discharge only for someperiods, published in HSP 1318. Prior to December 1911, published as South Fork of Umpqua River at Tiller.

REVISED RECORDS. WSP 1448: 1911(M), 1912, drainage area.

GAGE. Hater-stage recorder and crest-stage gage. Datum of gage is 991.8 ft above National Geodetic Vertical Datum of 1929 (river-profile survey). Prior to Oct. 1, 1939, nonrecording gage at site 0.2 mi downstream at different datum.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 60,200 ft 3/s Dec. 22, 1964, gage height, 25.72 ft; minimum discharge observed, 20 ftVs Sept. 3, 4, 1911.





1 37

14306090

120183


n

474747474747474747

250%

45 46474954627394

228

520%

38 38394145516076

157

1010%

34 34353741465468

128

205%

31 31323437425062

108

502%

28 2829313438465689

1001%

26 2627293235435378



1 37

15306090



n

49 494949494949

250%

13700 961064504440339026702360

520%

21200 1480096306310465036603180

1010%

25600 18100116007470541042503680

254%

30500 22000140008860630049504240

502%

33700 24700157009840692054304630

1001%

36500 272001730010800750058904990



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

11500 18000 35700 53800


312

UMPQOA RIVER BASIN

14308500 ELK CREEK NEAR DREW, OR

LOCATION. Lat 42°53'25", long 122°55'00", in SW 1/4 sec.11, T.31 S., R.2 W., Douglas County, Hydrologic Unit17100302, on right bank. 100 ft downstream from Dixon Creek, 0.1 mi upstream from Drew Creek, 1.3 mi northwest of Drew, 3.3 mi southeast of Tiller, and at mile 4.1.


PERIOD OF RECORD. September 1954 to September 1982, October 1986 to September 1987.


REMARKS. No regulation. Several diversions for irrigation upstream from station.

AVERAGE DISCHARGE.--29 years (1955-82, 1987), 83.1 ft 3 /s, 20.74 in/yr, 60,210 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,880 ft 3/s Dec. 22, 1964, gage height, 10.61 ft, from rating curve extended above 2,900 ft 3 /s on basis of slope-area measurement at gage height 10.34 ft; maximum gage height, 10.80 ft Jan. 15, 1974; no flow at times in September 1974, Aug. 16-22, 1977, Aug. 17-24, Sept. 16-19, 1981, Sept. 7, 8, 1987.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage, 11.8 ft, from floodmarks, probably for flood in January or November 1953, discharge, about 11,000 ft /s.





1 37

14306090

120183

n

27 2727272727272727


250%

0, 0,0,00.1,1,2,7,

.5

.5

.6

.6

.8

.2

.5

.4

.3

520%

0.1 0.10.10.20.30.61.01.64.7

10 2010%

0, 0.0.0,0,0,0,1,3.

.0

.0

.0

.1,2.4.8.3.7

0 000,0,0,013

5%

.0

.0

.0

.0

.1

.3

.7

.1

.1

50

0 00,00001,2

2%

.0

.0

.0

.0

.0

.2

.5

.0

.5

100

0, 0,0,0,0,0.0.0.2.

1%

.0

.0

.0

.0

.0

.1

.5

.9

.2



1 37

15306090



n

29 292929292929

250%

1710 1100707459330260219

520%

2830 18201140697484371310

1010%

3490 22801420845580432362

254%

4200 283017601020693497418

502%

4650 321020101140772537454

1001%

5040 356022401250847573485



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1680 3000 5300 7130 9760


313

OMPQUA RIVER BASIN

14308600 SOUTH UMPQUA RIVER AT DAYS CREEK, OR

LOCATION.~Lat 42°58'05", long 123°09'60", in NW 1/4 sec.15, T.30 S., R.4 W., Douglas County, Hydrologic Unit 17100302, on left bank 0.3 mi upstream from Days Creek, 0.4 mi southeast of community of Days Creek, and at mile 170.2.


PERIOD OF RECORD. March 1975 to 1987.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 738.55 ft above National Geodetic Vertical Datum of 1929.

REMARKS. No regulation. Many small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 42,300 ftVs Dec. 6, 1981, gage height, 22.39 ft; minimum discharge, 31 ftVs Sept. 15, 1977.



MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW BASED ON PERIOD OP RECORD 1976-1987


1 37

14306090

120183



n

12 1212121212121212

250%

46 485054607487

118283

520%

38 40414450627596

186

10 2010% 5%

35 36374045567187

146

50 1002% 1%



1 37

15306090



n

12 121212121212

250%

18000 1280081805770429032602780

520%

24900 17300116007970586043603750

1010%

26900 18700129008920658048404200

25 50 1004% 2% 1%

II II II



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

15300 21800 31300 37900


314

UMPQUA RIVER BASIN

14308700 DAYS CREEK AT DAYS CREEK, OR

LOCATION. Lat 42°58'55", long 123°08'55", in NE 1/4 sec.10, T.30 S., R.4 W., Douglas County, Hydrologic Unit 17100302, on left bank 150 ft downstream from Wood Creek, 1.0 mi northeast of community of Days Creek, and at mile 1.3.



GAGE. Nonrecording gage and crest-stage gage. Elevation of gage is 810 ft, from topographic map. Prior to Oct. 1, 1962, at site 170 ft upstream at datum 3.06 ft higher.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,450 ft 3/s Feb. 21, 1956, gage height, 11.24 ft, site and datum then in use, from rating curve extended above 1,100 ft /s on basis of slope-area measurement of peak flow; no flow for many days in July and August 1961.





1 37

14306090

120183

n

16 1616161616161616


250%

0. 0.0.0.0.0.1.1.3.

.3

.4,5.5.7.8.1.6.8

520%

0, 0.0.0,0,00,1.2

.2

.2

.2

.2

.3

.5

.7

.1

.5

1010%

0.1 0.10.10.10.20.40.60.92.1

205%

0.1 0.10.10.10.10.30.60.81.9

50 1002% 1%

II II -



1 37

15306090



n

16 161616161616

250%

934 657406264197142118

520%

1360 922593378272194164

1010%

1650 1090732455320233198

254%

2020 1290926555381287244

50 1002% 1%

:: :: . MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

2370 2960 3770


315

OMPQOA RIVER BASIN

14309000 COW CREEK NEAR AZALEA, OR

LOCATION.~Lat 42°49'30", long 123°10'40", In N-l/2 sec.4, T.32 S., R.4 W. f Douglas County, Hydrologlc Unit17100302, on right bank 0.8 mi upstream from Hhitehorse Creek, 4.5 mi northeast of Azalea, and at mile 58.2.


PERIOD OF RECORD. April 1926 to September 1928 (no winter records), April 1929 to December 1931, April 1932 to 1987.

REVISED RECORDS.--WSP 984: 1933-36. WSP 1154: 1946<M), 1948(M). WSP 1448: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 1,694.32 ft above National Geodetic Vertical Datum of 1929 (Douglas County Road Department bench mark). Prior to July 19, 1949, nonrecording gage at same site and datum.

REMARKS. Flow regulated since Oct. 7, 1985 by Galesville Reservoir (station 14308995). Diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 57 years (water years 1930-31, 1933-87), 111 ft 3/s, 19.33 in/yr, 80,420 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 10,600 ft 3/s Jan. 15, 1974, gage height, 16.40 ft, fromhigh-water mark in well; minimum discharge, 1.1 ft 3/s Aug. 12, 1981, but may have been less during period of no gage-height record Sept. 4-30, 1970.





1 37

14306090

120183

n

55 5555555555555555


8 8899

250%

.3

.5

.8

.1

.711121421

520%

5.9 6.06.46.87.38.49.31116

4 4556789

1010%

.7

.8

.3

.7

.1

.2

.4

.714

205%

3.8 3.94.44.85.36.47.68.812

23334567

502%

.9

.0

.5

.9

.3

.5

.8

.911

100

22.3.3,3,4.6,7,9,

1%

.4

.5

.0

.4

.8

.9

.4

.3

.8



1 37

15306090

DISCHARGE, IN FTS /S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL


n

55 555555555555

250%

1880 1250831557402324275

520%

3140 20701330861612471399

1010%

3880 256016201040738549465

254%

4670 308019401240881629534

502%

5170 341021501370976676577

1001%

5590 3700233014901060716612



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1440 2780 6280 8040 9300 10500


316

UMPQUA RIVER BASIN

14309500 WEST FORK COW CREEK NEAR GLENDALE, OR

LOCATION.~Lat 42°48'15", long 123°36'35", in SW 1/4 NE 1/4 sec.11, T.32 S., R.8 W., Douglas County, Hydrologic Unit 17100302, on left bank 1.6 mi downstream from Bear Creek, 11 mi northwest of Glendale, and at mile 0.8.



REVISED RECORDS. WSP 1738: 1956, drainage area (former site). WSP 1935: 1956.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,018.48 ft above National Geodetic Vertical Datum of 1929. Prior to June 8, 1964, at site 0.6 mi upstream at different datum.



EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 15,700 ft 3/s Dec. 22, 1964, gage height, 18.59 ft, fromfloodmark, from rating curve extended above 2,600 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 3.7 ft 3/s Aug. 17, 19, 1977.





1 37

14306090

120183


n

31 3131313131313131

250%

7.1 7.37.47.88.29.3111531

520%

5.9 6.16.26.57.08.09.61222

1010%

5.4 5.55.65.96.47.59.21119

205%

4.9 5.05.15.46.07.18.81016

44445689

502%

.4

.5

.6

.8

.6

.8

.6

.614

100

4 4445689

1%

.1

.1

.3

.4

.3

.6

.4

.113



1 37

15306090



n

32 323232323232

250%

4520 3170216014801120886737

520%

6490 45703090201014901160970

1010%

7660 546037102340170013001080

254%

8990 654044902720193014301190

502%

9880 730050702990208015001250

1001%

10700 804056503250222015601300



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

4580 6700 9570 13700


317

UMPQUA RIVER BASIN

14310000 COW CREEK NEAR RIDDLE, OR

LOCATION. Lat 42°55'25«, long 123°25'40«, in NE 1/4 sec.32, T.30 S., R.6 W., Douglas County, Hydrologic Unit 17100302, on left bank. 0.4 mi upstream from Council Creek, 3.8 mi southwest of Riddle, and at mile 6.7.


PERIOD OF RECORD. September 1954 to 1987.

REVISED RECORDS. WSP 1935: 1956(M).


REMARKS. Regulated since Oct. 7, 1985 by Galesville Reservoir (station 14308995). Many small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 38,400 ft 3/s Jan. 15, 1974, gage height, 28.17 ft; minimum discharge, 7.4 ft 3/s Aug. 17-19, 1977.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Oct. 29, 1950, reached a stage of about 28.5 ft, present site and datum, from slope-area measurement, discharge, 41,100 ft 3/s.





1 37

14306090

120183



n

30 3030303030303030

250%

25 26272830344152

104

520%

19 1920212226324378

1010%

16 1616171923293968

205%

13 1314141620263660

502%

10 1011111417233353

1001%

9.1 9.19.29.71215223248



1 37

15306090



n

31 313131313131

250%

16500 1100072504870367029102430

520%

24200 16700113007290534041103430

1010%

27700 19900138008690626046803920

254%

30600 232001670010300722052204390

502%

32100 252001-860011300781055104660

1001%

33200 269002040012200832057404860



1.25 80%

250%

5 20%

1010%

25 4%

50 2%

1001%

13200 20300 29800 35700 42700 47500 52100


58

318

UMPQUA RIVER BASIN

14310700 SOUTH MYRTLE CREEK NEAR MYRTLE CREEK, OR

LOCATION. Lat 43°01'55", long 123°11'30", in SE 1/4 sec.20, T.29 S., R.4 W., Douglas County, Hydrologic Unit 17100302, on left bank 0.6 mi downstream from School Hollow, 5.5 mi east of town of Myrtle Creek, and at mile 7.3.



GAGE. Nonrecording gage and crest-stage gage. Datum of gage is 775.25 ft above National Geodetic Vertical Datum of 1929.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,050 ft 3 /s Dec. 11, 1956, gage height, 7.72 ft, from rating curve extended above 1,100 ft 3/s; minimum observed, 0.20 ft 3/s Aug. 2, 1961.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

16 1616161616161616


0 1112235

250%

.8

.2

.6

.8

.2

.9

.8

.110

520%

0 01.11.22,3.7,

.4

.6

.0

.2

.5

.0

.9

.9

.3

1010%

0.3 0.40.80.91.21.72.53.46.3

20

0. 0.0.0.1.1.2.3.5.

5%

.2

.3

.6

.8

.0

.4

.2

.0

.6

50 1002% 1%



1 37

15306090



n

16 161616161616

250%

1100 808521357266196168

520%

1520 1070722480358267227

1010%

1790 1210854551414316265

254%

213013701020629478380313

50 1002% 1%




1.25 80%

250%

5 20%

1010%

25 4%

50 2%

1001%

1320 1800 2940 3530


319

UMPQUA RIVER BASIN

14311000 NORTH MYRTLE CREEK NEAR MYRTLE CREEK, OR

LOCATION. Lat 43C02'30", long 123C15'30", in SW 1/4 sec.14, T.29 S., R.5 W., Douglas County, Hydrologic Unit 17100302, on left bank 300 ft downstream from Bilger Creek, 1.5 mi northeast of town of Myrtle Creek, and at mile 2.2.



GAGE. Hater-stage recorder. Datum of gage is 642.81 ft above National Geodetic Vertical Datum of 1929 (levels by City Engineer of Myrtle Creek). Oct. 1, 1955, to Aug. 31, 1977, at site 340 ft downstream on right bank. Oct. 1, 1955, to Sept. 30, 1975, at datum 1.63 ft lower and Oct. 1, 1975, to Aug. 31, 1977, at datum 1.33 ft lower.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,700 ft 3/s Dec. 6, 1981, gage height, 10.08 ft, from floodmark, from rating curve extended above 1,300 ft /s on basis of slope-area measurement of peak flow; maximum gage height, 11.58 ft Dec. 26, 1955 (backwater from debris), site and datum then in use; no flow at times in July 1973 and August 1977.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

30 3030303030303030


250%

1.1,22.23,3,5,9

.7 ,9.0.5.5.2.9.1.5

520%

0.8 0.91.01.21.62.12.83.97.2

1010%

0.4 0.50.70.71.21.72.43.46.4

20

0 00011235

5%

.2

.2

.4

.3

.0

.4

.1

.0

.8

50

0, 0,0:

0,0.1,1,25.

2%

.0

.0,0.1.7.1.7.7.2

100

0, 000,0,1,1,24

1%

.0

.0

.0

.1

.6

.0

.6

.4

.9



1 37

15306090



n

31 313131313131

250%

1390 957642428320249207

520%

1900 1290862571415316270

1010%

2060 1390934623446336293

254%

2170 1460980661467347310

502%

2200 1480997677475351317

1001%

2220 14901010687479353321



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1270 1870 2660 3160 3740 4160 4550


320

UMPQUA RIVER BASIN

14311200 OLALLA CREEK NEAR TENMILE, OR

LOCATION. Lat 43°02'20", long 123°32'35", in NW 1/4 sec.21, T.29 S., R.7 W., Douglas County, Hydrologic Unit 17100302, on left bank 0.5 mi downstream from Berry Creek, 4.4 mi south of Tenmile, and at mile 11.7.



GAGE. Water-stage recorder. Datum of gage is 749.53 ft above National Geodetic Vertical Datum of 1929. Prior to June 21, 1957, nonrecording gage at site 0.3 mi downstream at datum 7.83 ft lower.

REMARKS. No regulation. Some diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 9,160 ft 3/s Jan.3, 1966, gage height, 11.98 ft, from floodmark; no flow at times.






1 37

14306090

120183


n

16161616161616

250%

::0.10.20.20.40.71.24.5

520%

::0.00.00.10.20.40.82.6

1010%

__

0.00.10.30.62.0

205%

--

0.10.20.51.6

50 1002% 1%

__

-- --



1 37

15306090



n

17 171717171717

250%

2540 18201110709513385317

520%

3570 24901580984682501414

1010%

4060 280018701160775563465

254%

4490 308022001360877628518

50 1002% 1%

_ __ __



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2970 4430 6550 7990 9860


321

OMPQUA RIVER BASIN

14311500 LOOKINGGLASS CREEK AT BROCKWAY, OR

LOCATION. Lat 43°07'50", long 123°27'50-, in SE 1/4 SE 1/4 sec.13, T.28 S. r R.7 W., Douglas County, Hydrologic Unit 17100302, on left bank 1.7 mi northwest of Brockway and at mile 2.85.



REVISED RECORDS. WSP 2135: Drainage area (former site).

GAGE. Water-stage recorder. Elevation of gage is 540 ft, from topographic map. Prior to Oct. 5, 1967,water-stage recorder at site 2.3 mi downstream at different datum. Oct. 5, 1967, to Oct. 5, 1976, water-stage recorder, at datum 1.00 ft lower.

REMARKS. Some regulation by Ben Irvlng Reservoir 17 mi upstream on Berry Creek, capacity, 11,200 acre-ft since January 1980. Many diversions by pumping for irrigation upstream from station. Discharge not adjusted for storage or release from Ben Irving Reservoir as losses from reservoir at times exceed natural flow.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 35,000 ft 3/s Dec. 26, 1955, gage height, 24.93 ft, site and datum then in use, from rating curve extended above 7,200 ft 3 /s on basis of slope-area measurement of peak flow; maximum gage height, 25.28 ft Dec. 23, 1964 (backwater from South Umpqua River, site and datum then in use); no flow at times each year prior to January 1980, Aug. 6, 7, 1987.





DISCHARGE, INPERIOD(CONSECUTIVEDAYS) n

1 37

14306090 23

120 23183 23

INTERVAL,FT3 /S, FORIN YEARS,



250%

_

0.31.08.0

520%

:: 0.10.34.4

1010%

_

0.10.13.3

205%

0.12.7

PERCENT

502%

0.02.1

1001%

MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW BASED ON PERIOD OF RECORD 0- 0


1 37

15306090



n

24 242424242424

250%

7260 48603090194014001120929

520%

12100 759049302990203015001250

1010%

14700 889059403560233016301360

254%

17200 1000069504140259017101420

502%

18600 1060075504490273017401440

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

5780 10500 17700 28900 33400

Systematic n = 24 historical n Weighted skew <= -0.455

322

UMPQUA RIVER BASIN

14312000 SOUTH UMPQUA RIVER NEAR BROCKWAY, OR

LOCATION. Lat 43°08'00", long 123°23'50", in SW 1/4 sec.15, T.28 S., R.6 W., Douglas County, Hydrologic Unit 17100302, on right bank 10 ft upstream from Winston Bridge on State Highway 99, 2.5 mi northeast of Brockway, 4.2 mi downstream from Lookingglass Creek, and at mile 132.8.

DRAINAGE AREA. 1, 670 mi2 .

PERIOD OF RECORD. December 1905 to June 1912, October 1923 to September 1926, January 1942 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS. WSP 1248: 1946(M), 1948(M), 1951. WSP 1448: Drainage area. WDROR72-1: 1965(M).

GAGE. Hater-stage recorder. Datum of gage is 462.52 ft above National Geodetic Vertical Datum of 1929 (State Highway Department bench mark). Prior to June 24, 1949, nonrecording gage at several sites within 400 ft of present site at various daturas. June 24, 1949, to Oct. 1, 1970, at datum 461.84 ft National Geodetic Vertical Datum of 1929 (State Highway Department bench mark).

REMARKS. Regulation from Ben Irving Reservoir, since January 1980, on Berry Creek during summer months. Many small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 53 years (water years 1907-11, 1924-26, 1943-87), 2,877 ft 3/s, 23.40 in/yr, 2,084,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 125,000 ft 3/s Dec. 23, 1964, gage height, 34.28 ft; minimum discharge, 16 ft 3/s Aug. 23, 1977.

EXTREMES OUTSIDE PERIOD OF RECORD. Floo£ of Feb. 21, 1927, reached a stage of about 31.2 ft, present site and datum, discharge (revised), 89,500 ft /a. Discharge for flood of February 1890, which reached a stage 1.9 ft higher, according to local resident who lived nearby at time of both floods, has been found to be in error and should not be used.





1 37

14306090

120183


n

37 3737373737373737

250%

78 79828694

111128170417

520%

52535659678399

134290

1010%

40 414347547087

119242

205%

32 323437446179109210

502%

23 24252835517199

180

1001%

18 19202330456792

163



1 37

15306090



n

45 454545454545

250%

44000 3170022200153001140089407630

520%

64300 464003250021500155001190010300

1010%

73500 533003750024500174001330011600

254%

81600 595004230027300190001440012800

502%

85600 627004490028800199001490013500

1001%

88500 652004700029900205001540014000



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

31100 48300 71100 85200 101800 113300 124000



323

UMPQUA RIVER BASIN

14312200 DEER CREEK NEAR ROSEBURG, OR

LOCATION. Lat 43°13'10", long 123°16'35", in NE 1/4 SW 1/4 sec.15, T.27 S., R.5 W., Douglas County, Hydrologlc Unit 17100302, on right bank 0.6 mi upstream from Shick Creek, 3.3 mi east of Roseburg, and at mile 4.0.



GAGE. Water-stage recorder. Datum of gage is 498.95 ft above National Geodetic Vertical Datum of 1929 (levels by Douglas County Highway Department). Prior to July 3, 1969, nonrecording gage at site 0.5 mi downstream at datum 12.85 ft lower.

REMARKS. No regulation. Diversions upstream from station for logponds and many small diversions by pumping for irrigation upstream from station.

AVERAGE DISCHARGE. 18 years, 77.4 ft 3/s, 56,080 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,910 ft 3/s Dec. 28, 1965, gage height, 14.76 ft, from floodmark, from rating curve extended above 2,200 ft 3/s on basis of slope-area measurements at gage heights 13.38 and 13.67 ft; no flow at times.





1 37

14306090

120183


n

17 1717171717171717

0 00001125

250%

.1

.3

.4

.5

.8

.2

.6

.3

.5

0 00000113

520%

.0

.1

.2

.2

.4

.7

.1

.6

.4

0 00000012

1010%

.0

.0

.1

.2

.3

.6

.9

.4

.7

20

0, 0.0.0.0,0.0,1,2

5%

.0

.0

.0

.1

.2

.4

.7

.2

.2

50 1002% 1%

II II



1 37

15306090



n

18 181818181818

250%

2190 1400836502379286228

520%

3160 18901200741518378306

1010%

3570 20801400889591423349

254%

3900 223015901060666464396

50 1002% 1%

II II



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

6000 7030


324

UMPQUA RIVER BASIN

14312500 LAKE CREEK NEAR DIAMOND LAKE, OR

LOCATION.~Lat 43°11'10", long 122°09'55", in NW 1/4 SW 1/4 sec.30, T.27 S., R.6 E., Douglas County, Hydrologic Unit 17100301, Umpqua National Forest, on right bank 260 ft downstream from outlet of Diamond Lake, 1.6 mi northwest of town of Diamond Lake, and at mile 10.7.


PERIOD OF RECORD. May 1922 to September 1925 (no winter records), October 1926 to September 1929, April, July, August 1930, October 1930 to September 1953, October 1971 to October 1977, February 1978 to September 1984. Prior to October 1971 published as "at Diamond Lake, near Fort Klamath."

GAGE. Water-stage recorder. Elevation of gage is 5,180 ft, from river-profile map. Prior to May 26, 1931, nonrecording gage at site 300 ft downstream at different datum. May 26, 1931, to Oct. 6, 1933, nonrecording gage at present site and datum.

REMARKS. Flow regulated by gates and fish racks at lake outlet. No diversion upstream from station.

AVERAGE DISCHARGE. 38 years (water years 1927-29, 1931-53, 1972-77, 1979-84), 57.3 ft 3 /s, 41,510 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge observed, 336 ft 3/s Jan. 1, 1943, gage height, 2.8 ft, from rating curve extended above 120 ft 3/s; no flow Aug. 25-27, 1931, Sept. 19, 1977.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

30 3030303030303030


250%

6.4 7.89.4131723263138

520%

2.7 3.54.66.81016192228

1010%

1.6 2.23.04.67.712151825

205%

1.1 1.42.13.26.09.7121622

502%

0.7 0.91.32.04.57.39.61319

1001%

0.5 0.61.01.53.65.98.01117



1 37

15306090



n

33 333333333333

250%

123 120115105968782

520%

162 157148134120109103

1010%

189 182171154136124116

254%

226215200179156142133

502%

254 241222197171156146

1001%

284 268244216

' 186170160



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


325

UMPQUA RIVER BASIN

14315500 NORTH UMPQUA RIVER AT TOKETEE FALLS, OR

LOCATION.~Lat 43°15'50", long 122025'20", in E 1/2 sec.35, T.26 S., R.3 E., Douglas County, Hydrologic Unit 17100301, 0.1 mi downstream from Clearwater River and 0.5 mi upstream from Toketee Falls.


PERIOD OF RECORD. July 1925 to September 1945, April 1946 to September 1948.

GAGE. Water-stage recorder. Datum of gage is 2,373 ft above National Geodetic Vertical Datum of 1929 (levels by California-Oregon Power Co.) . Feb. 26, 1908, to July 20, 1909, staff gage, and Dec. 19, 1914, to Sept. 30, 1917, water-stage recorder, at datum 0.50 ft lower.


AVERAGE DISCHARGE. 22 years (water years 1926-45, 1947-48), 875 ftVs.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,080 ftVs Dec. 31, 1942, gage height, 5.90 ft, from rating curve extended above 1,900 ft 3 /s by logarithmic plotting; minimum, 475 ft 3/s Nov. 27-29, Dec. 12, 14, 1931.





1 37

14306090

120183


n

20 2020202020202020

250%

574 577581587594603613625670

520%

532 534537542547555561568671

1010%

514 515517522527535538542564

205%

501 501503507512520521523538

502%

487 487489492497505505503511

1001%




1 37

15306090



n

22 222222222222

250%

2220 196016801500140013001210

520%

2940 252020901830167015401420

1010%

3390 286023502030182016601540

254%

3930 326026602260199017901670

502%

4330 355028902430210018701750

1001%

_



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2580 3550 5560


326

UMPQUA RIVER BASIN

14316500 NORTH UMPQUA RIVER ABOVE COPELAND CREEK, NEAR TOKETEE FALLS, OR

LOCATION. Lat 43°17'45", long 122°32'10", in NW 1/4 sec.24, T.26 S., R.2 E., Douglas County, Hydrologlc Unit 17100301, Umpqua National Forest, on left bank 0.6 mi upstream from Copeland Creek, 4.7 mi west of town of Toketee Falls, and at mile 67.2.


PERIOD OF RECORD. September 1949 to 1987. Monthly discharge only September 1949, published in WSP 1318. Prior to October 1952, published as "above Copeland Creek."

REVISED RECORDS. WSP 1448: 1953(M), 1954, drainage area.

GAGE. Water-stage recorder. Elevation of gage is 1,580 ft, from river-profile map. Prior to Aug. 1, 1976, on right bank at same datum.

REMARKS. Considerable fluctuation caused by powerplants upstream; flow slightly regulated by Diamond Lake and by Lemolo Lake (station 14313000). No diversion upsream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 40,700 ft 3/s Dec. 22, 1964, gage height, 19.1 ft, from floodmark, from rating curve extended above 7,200 ft 3/s on basis of slope-area measurement of peak flow; minimum discharge, 370 ftVs Sept. 30, 1981; minimum daily, 565 ft 3/s Sept. 13, 1959.





1 37

14306090

120183


n

37 3737373737373737

250%

675 718757781806835863901

1040

520%

612 638663689712744769798899

1010%

585 603621646668703725750840

205%

566578590615635671691714797

502%

547 552557582600638656675754

1001%

535 536537561578617633651728



1 37

15306090


EXCEEDANCE PROBABILITY, IK PERCENT

n

38 383838383838

250%

5890 479038703170275023502190

520%

9740 753056204230350029002650

1010%

12900 977069504970397032302920

254%

17700 1310088505930454036203210

502%

21800 16100104006670496039003410

1001%

26400 19400122007430536041703590



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

13000


38 historical 0.313

327

UMPQ0A RIVER BASIN

14316700 STEAMBOAT CREEK NEAR GLIDE, OR

LOCATION.~Lat 43°21'00", long 122°43'40", in N 1/2 sec.32, T.25-1/2 S., R.I E., Douglas County, Hydrologic Onit 17100301, in Ompqua National Forest, on right bank in Canton Creek Forest Service Park, 200 ft downstream from Canton Creek, 19 mi northeast of Glide, and at mile 0.5.


PERIOD OF RECORD. Annual maximum, water year 1956, June 1956 to 1987.

GAGE. Water-stage recorder. Datum of gage is 1,128.55 ft above National Geodetic Vertical Datum of 1929 (levels by Federal Highway Administration). October 1955 to June 1956, nonrecording gage at site 100 ft upstream at same datum.

REMARKS. No regulation or diversion upsream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 51,000 ft 3/s Dec. 22, 1964, gage height, 25.6 ft, from floodmark, from rating curve extended above 13,000 ft 3/s on basis of slope-area measurement at 17.96 ft; minimum discharge, 30 ft 3/s Sept. 15-17, 1973.



MAGNITODE AND PROBABILITY OF ANNUAL LOW FLOW BASED ON PERIOD OF RECORD 1958-1987


1 37

14306090

120183


n

30 3030303030303030

250%

37 37384043505874

159

520%

3333343638434961

120

1010%

32 32333437414656

104

205%

30 3131333539435293

502%

293030313437414881

1001%

29 2930313435404575



1 37

15306090



n

31 313131313131

250%

10900 738049003370255019901710

520%

15800 1080070404620337026402240

1010%

18300 1280083205320383030202550

254%

20900 1500097906090433034402930

502%

22400 16500108006580465037303190

1001%

23700 17900117007020493039903440



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

10300 21400 26400 33400 39100 45100


328

UMPQOA RIVER BASIN

14317500 NORTH UMPQUA RIVER ABOVE ROCK CREEK, NEAR GLIDE, OR

LOCATION. Lat 43°19'40", long 123°00'00", in NW 1/4 sec.12, T.26 S., R.3 W., Douglas County, Hydrologic Unit 17100301, 0.5 mi upstream from Rock Creek and 5 mi northeast of Glide.



GAGE. Water-stage recorder. Elevation of gage is 770 ft, from river-profile map.


AVERAGE DISCHARGE. 21 years (water years 1925-45), 2,274 ftVs, 1,648,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 53,000 ft3/s Feb. 20, 1927, gage height, 20.18 ft, from rating curve extended above 18,000 ft 3/s by logarithmic plotting; minimum, 521 ft 3/s Oct. 16, 1931, gage height, 1.86 ft.





1 37

14306090

120183


n

19 1919191919191919

250%

675 678684694706731751779985

520%

608 614620630643661677702827

1010%

577 584590599614630644674765

205%

553 561566576592606619655723

50 1002% 1%




1 37

15306090



n

20 202020202020

250%

17000 1270094207070552044504040

520%

24700 18400132009630718058405290

1010%

30700 229001600011500831068706180

254%

39500 295001990014100976083007370

502%

46900 3510023000162001090094708310

1001%



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

16000 31800 38700


329

UMPQUA RIVER BASIN

14317600 ROCK CREEK NEAR GLIDE, OR

LOCATION. Lat 43°20'45", long 122°59'30", in SE 1/4 SE 1/4 sec. 36, T.25 S., R.3 W., Douglas County, on left bank 0.3 ml downstream from McComas Creek, 5.8 ml northeast of Glide, and at mile 1.2.

DRAINAGE AREA. 97.4 ml2 .

PERIOD OF RECORD. Water years 1956-57 (annual maxlmums only), June 1957 to June 1973.

GAGE. Water-stage recorder. Elevation of gage Is 940 ft, from topographic map. Nov. 8, 1955, to June 16, 1957,nonrecordlng gage and June 17, 1957, to Sept. 30, 1965, water-stage recorder at site 800 ft downstream at different datum.


AVERAGE DISCHARGE. 15 years (1957-72), 373 ft 3/s, 52.01 in/yr, 270,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 22,800 ft 3/s Dec. 22, 1964, gage height, 20.3 ft, from floodmark, site and datum then in use, from rating curve extended above 5,400 ft 3/s on basis of slope-area measurement at gage height 14.83 ft; minimum, 14 ft 3 /s Sept. 5-11, 1966.





1 37

14306090

120183



n

15 1515151515151515

250%

20 2021222427313879

520%

17 1718192023263161

1010%

16 1616171921242953

205%

15 1515161720222647

50 1002% 1%



1 37

15306090



n

15151515151515

250%

4410 3260230016401220995855

520%

6950 506034602350169013501110

1010%

9240 661044302850204016101300

254%

13000 904059103520253019701560

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

4300 6660 10500 13500 17700


330

OMPQOA RIVER BASIN

14318000 LITTLE RIVER AT PEEL, OR

LOCATION. Lat 43°15'10", long 123°01'30", in NW 1/4 sec.2, T.27 S., R.3 W. r Douglas County, Hydrologic Unit 17100301, on left bank 0.6 mi southeast of Peel, 0.9 mi downstream from Cavitt Creek, and at mile 6.3.




REMARKS. No regulation. Small diversions for rural domestic use and irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 21,100 ftVs Dec. 11, 1956, gage height, 19.63 ft, from rating curve extended above 5,900 ft /s on basis of slope-area measurement at gage height 16.55 ft; minimum discharge, 14 ft 3 /s at times in 1967, 1974, 1977, 1986, 1987.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Nov. 22, 23, 1953, reached a stage of 20.6 ft, from floodmark,discharge, 22,700 ft /s, from rating curve extended above 5,900 ft /s on basis of slope-area measurement at gage

height 16.55 ft.





1 37

14306090

120183


n

32 3232323232323232

250%

19 19202023273243

101

520%

16 1617181922273572

1010%

15 1516161821253159

205%

14 141'5

161719232851

502%

13 1314151618222642

1001%

13 1313141517212437



1 37

15306090



n

33 333333333333

250%

6520 461030102080159012501070

520%

9460 661043302870211016601410

1010%

11200 784051803340241019101600

254%

13100 929062403900276021801830

502%

14400 1030070104280299023701980

1001%

15500 1120077604640321025502120



1.25 80%

250%

5 20%

10 10%

254%

50 2%

1001%

6690 14300 17200 20900 23700


331

UMPQUA RIVER BASIN

14318500 NORTH UMPQUA RIVER NEAR GLIDE, OR

LOCATION. Lat 43°18'20-, long 123°07'00", in SW 1/4 sec.13, T.26 S., R.4 W., Douglas County, Hydrologic Unit 17100301, about 1.0 mi downstream from Little River and 1.0 mi west of Glide.


PERIOD OP RECORD. September 1915 to March 1919, October 1928 to September 1938.

GAGE. Staff gage. Elevation of gage is 645 ft, river-profile survey. Sept. 1, 1915, to Oct. 17, 1922, staff gage 150 ft downstream at datum 0.60 ft higher.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 59,500 ft 3 /s Mar. 19, 1932, gage height, 17.3 ft; from graph based on gage readings; minimum, 552 ft /s Aug. 27-30, Sept. 27, 1931, gage height, 0.84 ft.





1 37

14306090

120183


n

12 1212121212121212

250%

716 723730742760787818860

1180

520%

630 635642653671689708742919

10 2010% 5%

592 595603612629644657689819

502%

1001%



1 37

15306090



n

14 141414141414

250%

27500 192001470010900857069806180

520%

36400 2630019100137001020083207420

1010%

42800 3220022200156001100090508070

254%

51700 4100026100181001200098308730

502%

1001%

MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK PLOW BASED ON PERIOD OF RECORD 1910-1938


1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

26600 35400 47600 55800 66200


332

UMPQUA RIVER BASIN

14319200 SUTHERLIN CREEK AT SUTHERLIN, OR

LOCATION.~Lat 43°23'20", long 123°18'10", in SW 1/4 sec.16, T.25 S., R.5 W., Douglas County, Hydrologic Unit 17100301, on right bank at downstream side of Waite Street bridge in Sutherlin, 1.5 mi upstream from Cooper Creek, and at mile 8.4.



GAGE. Staff gage read once or twice daily and crest-stage gage. Datum of gage is 511.46 ft above National Geodetic Vertical Datum of 1929. Prior to Dec. 17, 1963, at datum 1.00 ft higher.

REMARKS. No regulation. A few small diversions by pumping for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,250 ft 3/s Feb. 10, 1961, gage height, 7.64 ft, datum then in use, from rating curve extended above 750 ft 3/s by logarithmic plotting; maximum gage height, 8.24 ft Dec. 21, 1957, datum then in use; no flow for several months each year.




[Low-flow statistics uncertain due to excessive zero events)

DISCHARGE, INPERIOD(CONSECUTIVEDAYS) n

1 37

14306090

120183 11




250%

0.8

520%

:: 0.2

1010%

:: 0.1

205%

::

502%

::

1001%



1 37

15306090



n

12 121212121212

250%

864 5703361981359473

520%

1240 73744126718012496

10 2510% 4%

1490 816498312210148115

50 1002% 1%




1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

900 1310 1910


333

UMPQUA RIVER BASIN

14319500 NORTH UMPQUA RIVER AT WINCHESTER, OR

LOCATION. Lat 43816'20", long 123°24'40", in NW 1/4 NE 1/4 sec.33, T.26 S., R.6 W., Douglas County, Hydrologic Unit 17100301, on left bank 400 ft downstream from county bridge, 3.0 mi west of Winchester, and at mile 1.8.


PERIOD OF RECORD. October 1908 to December 1913, October 1923 to September 1929, August 1954 to 1987. Prior to December 1908, monthly discharge only, published in WSP 1318.

REVISED RECORDS. WSP 1448: 1909-12, drainage area. WDR OR-72-1: 1965(M).

GAGE. Water-stage recorder. Datum of gage is 372.97 ft above National Geodetic Vertical Datum of 1929 (Douglas County Road Department bench mark). Oct. 1, 1908, to Dec. 31, 1913, and Oct. 1, 1923, to Sept. 30, 1929, nonrecording gage at site 4.8 mi upstream at different datums. Aug. 27, 1954, to Aug. 12, 1965, water-stage recorder on right bank at same datum.

REMARKS. Diurnal fluctuation caused by upstream powerplants; slight regulation by Lemolo Lake and Diamond Lake. Several small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 44 years, 3,776 ftVs, 38.15 in/yr, 2,736,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 150,000 ft 3/s Dec. 22, 1964, gage height, 34.2 ft, fromfloodmark; minimum discharge, 235 ft 3/s Aug. 27, 1987, result of regulation at Winchester Dam 5.2 mi upstream; minimum daily, 578 ft 3/s Sept. 14, 1959.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Oct. 29, 1950, reached a stage of 23.2 ft, from floodmark, at site 4.8 mi upstream at different datum, discharge, 88,000 ft 3/s. Flood of Nov. 23, 1953, reached a stage of 28.4 ft, from floodmarks, present site and datum, discharge, 93,300 ft /s.





1 37

14306090

120183


n

41 4141414141414141

250%

749 793833859891949

101011001520

520%

670 704733759788836883951

1230

1010%

637 664689714740782822881

1100

205%

612 635655680703740773828

1000

502%

587 605620644664695722771902

1001%

572 586598622640666688735841



1 37

15306090



n

44 444444444444

250%

38700 2770018900134001040082807260

520%

56900 41000275001870013900110009480

1010%

67600 496003330022100160001280010900

254%

79500 602004050026300187001500012600

502%

87400 678004600029400206001660013800

1001%

94400 752005130032500224001820015100



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

71000 87200 108700 125300 142300

Systematic n = 45 historical n Weighted skew - 0.010

334

UMPQUA RIVER BASIN

14319900 CALAPOOYA CREEK AT NONPAREIL, OR

LOCATION. Lat 43°25'04", long 123°09'13", in SW 1/4 SE 1/4 sec.3, T.25 S., R.4 W., Douglas County, Hydrologic Unit 17100303, on left bank. 0.3 mi upstream from county road bridge, 0.9 mi northeast of Nonpareil, and at mile 26.7.

DRAINAGE AREA. 88. 6 mi 2 .


GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 699.22 ft above National Geodetic Vertical Datum of 1929 (Douglas County Survey bench mark.) .

REMARKS. Only minor diversions by pumping for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,640 ft 3 /s Dec. 6, 1981, gage height, 11.16 ft; minimum discharge, 3.7 ft 3/s Sept. 23-25, 1987.





1 37

14306090

120183


n

10 1010101010101010

250%

8.3 8.59.4101114172452

520%

6.1 6.36.97.78.911152043

1010%

5.3 5.55.96.78.010141840

20 505% 2%

_ _

1001%

_



1 37

15306090



n

11 111111111111

250%

2830 20601320918701537462

520%

3650 243016801140906701596

1010%

3890 250018001230996777664

254%

502%

::

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2930 5940


335

UMPQUA RIVER BASIN

14320700 CALAPOOYA CREEK NEAR OAKLAND, OR

LOCATION.~Lat 43°24'10", long 123°21'45", in NW 1/4 sec.13, T.25 S., R.6 W., Douglas County, Hydrologic Unit 17100303, near center of span on downstream side of highway bridge, 0.9 mi downstream from Williams Creek, 2.5 mi northwest of Sutherlin, 3.5 mi southwest of Oakland, and at mile 10.1


PERIOD OF RECORD. October 1955 to September 1973, October 1986 to September 1987. Records for the years 1974-86 are available at the Douglas County Hater Resources Dept. in Roseburg.

GAGE. Water-stage recorder. Datum of gage is 371.26 ft above National Geodetic Vertical Datum of 1929. Prior to June 22, 1968, nonrecording gage at same site and datum.

REMARKS. Diversion upstream from station for municipal supply of cities of Sutherlin and Oakland. Small diversions by pumping for irrigation upstream from station.

AVERAGE DISCHARGE. 19 years (water years 1956-73, 1987), 486 ftVs, 31.43 in/yr, 352,100 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 26,600 ft 3/s Nov. 23, 1961, gage height, 21.55 ft; no flow Sept. 9-11, 1966.





1 37

14306090

120183


n

17 1717171717171717

250%

5.2 5.86.47.28.412142258

520%

2.6 2.93.34.35.27.29.81538

1010%

1.5 1.72.13.13.95.37.81231

205%

0.0 0.01.42.32.94.06.31026

50 1002% 1%

__ _ --



1 37

15306090



n

18 181818181818

250%

8540 617040702730201015701330

520%

12300 855057703800268020801710

1010%

14400 972067904440309024001930

254%

16400 1080079605200358028002190

50 1002% 1%

.



1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

12200 19200 24300 31400


336

UMPQUA RIVER BASIN

14321000 UMPQUA RIVER NEAR ELKTON, OR

LOCATION. Lat 43°35'10", long 123°33'15", in NW1/4 sec.8, T.23 S., R.7 W., Douglas County, Hydrologic Unit 17100303, on left bank 3.5 mi south of Elkton, 8.3 mi upstream from Elk Creek, and at mile 56.9.



REVISED RECORDS. WSP 1184: 1927(M), 1938(M), 1943(M), 1946(M). WSP 1448: 1911-13, drainage area.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 90.42 ft above National Geodetic Vertical Datum of 1929. Prior to June 29, 1972, at site 2,400 ft downstream at same datum. See WSP 1931 or 2135 for history of changes prior to June 29, 1972.

REMARKS. Regulation by powerplants on North Umpqua River ordinarily does not affect discharge at this station. Diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 265,000 ft 3 /s Dec. 23, 1964, gage height, 51.95 ft, from floodmarks; minimum discharge observed, 640 ft 3/s July 18, 1926.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage since at least December 1861, that of Dec. 23, 1964.





1 37

14306090

120183


n

81 8181818181818181

250%

971 986

1000102010501110118013002070

520%

845 857869882906954

101010801560

1010%

782 791803815835876918979

1340

205%

732 739749762778814847900

1170

502%

678 682691704717747771816

1010

1001%

643 646654667678704723764915



1 37

15306090



n

82 828282828282

250%

83200 633004540032200246001940016900

520%

122100 919006350043500324002550022100

1010%

145700 1091007420049700365002880025000

254%

173100 1291008630056600408003230028300

502%

191800 1427009430061000435003460030500

1001%

209200 15530010170064900458003660032400



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

65300 96000 140000 170000 208600 237700 267000

Systematic n = 80 historical n =126 Weighted skew = -0.080

337

UMPQUA RIVER BASIN

14322000 ELK CREEK NEAR DRAIN, OR

LOCATION. Lat 43°38'30", long 123°17'50", in NE 1/4 SW 1/4 sec.21, T.22 S., R.5 W., Douglas County, Hydrologic Unit 17100303, on right bank at downstream side of highway bridge, 0.2 mi downstream from Yoncalla Creek, 1.7 mi southeast of Drain, and at mile 26.2.




REMARKS. No regulation. Small diversions by pumping for irrigation upstream from station. Municipal supply for town of Yoncalla is diverted from Wilson Creek upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 15,000 ft 3/s Feb. 10, 1961, gage height, 23.7 ft, from floodmark, from rating curve extended above 7,500 ft /s; no flow at times.





1 37

14306090

120183

n

18 1818181818181818


0 0001235

250%

.2

.3

.5

.7

.4

.1

.1

.316

520%

0 00001139

.0

.1

.2

.4

.6

.1

.8

.3

.6

1010%

0.0 0.00.10.20.30.71.32.57.5

205%

0.0 0.00.00.10.10.51.01.96.1

50 1002% 1%



1 37

15306090



n

19 191919191919

250%

4380 308020701360971738611

520%

6880 46903070195013301000813

1010%

8530 56803710233015701180941

254%

10500 683044702790186013901100

50 1002% 1%



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

3580 10500 19100

Systematic n = 18 historical n - Generalized 17b skew = 0.060

338

TENMILE CREEK BASIN

14323200 TENMILE CREEK NEAR LAKESIDE, OR

LOCATION.--Lat 43°34'40", long 124°11'30", near center of sec.13, T.23 S., R.13 W., Coos County, Hydrologic Unit 17100304, in Siuslaw National Forest, near left bank on downstream side of highway bridge, 200 ft upstream from Eel Creek, 0.8 mi upstream from Saunders Creek, and 1.0 mi west of Lakeside. Records include flow of Eel and Saunders Creeks.

DRAINAGE AREA. About 87 mi 2 at measuring section 1.2 mi downstream.


GAGE. Water-stage recorder. Auxiliary nonrecording gage 1.4 mi upstream from base gage, read twice daily. Datum of both gages is National Geodetic Vertical Datum of 1929.

REMARKS. Flow affected by natural storage in Tenmile Lake and other lakes tributary to Eel and Saunders Creeks. No diversion upstream from station. Records given herein are for measuring site.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,330 ft 3/s Dec. 26, 1964, elevation 16.46 ft at base gage, 18.78 ft at auxiliary gage; minimum, 2.0 ft 3/s Aug. 29, Sept. 2, 1967.





1 37

14306090

120183


n

18 1818181818181818

250%

8.0 8.28.59.11113162253

520%

4.6 4.64.95.26.58.0101536

1010%

3.3 3.43.63.94.86.48.11230

205%

2.5 2.62.83.03.85.36.89.725

50 1002% 1%

__ _ _



1 37

15306090



n

19 191919191919

250%

2210 2120187014801150954842

520%

2830 271023801870142011901050

1010%

3140 301026502080158013301170

254%

3450 331029302310176014901300

50 1002% 1%

II II



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1630 2220 2910 3300 3730


339

COOS RIVER BASIN

14324500 WEST FORK MILLICOMA RIVER NEAR ALLEGANY, OR

LOCATION. Lat 43°28'35", long 124°03'20", in SW 1/4 NW 1/4 sec.19, T.24 S., R.ll W., Coos County, Hydrologic Unit 17100304, on left bank at highway bridge, 40 ft upstream from Daggett Creefc, 3.8 mi north of Allegany, and at mile 6.82.

DRAINAGE AREA. 46.9 mi 2 , at cableway 300 ft downstream.



REMARKS. No regulation. Only minor diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 27 years (water years 1955-81), 249 ftVs, 72.10 in/yr, 180,400 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,100 ft 3/s Nov. 24, 1960, gage height, 15.86 ft; minimum, 1.8 ft 3/s

Sept. 5, 9, 1965, Sept. 8-10, 1967.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

26 2626262626262626


250%

3.6 3.63.94.14.96.68.91234

2 2223458

520%

.4

.5

.7

.9

.4

.4

.8

.323

2 2222347

1010%

.0

.1

.2

.4

.9

.6

.9

.018

20

1 1122346

5%

.7

.8

.9

.1

.5

.1

.3

.115

1 1112235

502%

.5

.5

.6

.8

.1

.6

.8

.412

100

1111.12359

1%

.3

.3

.5

.6

.9

.4

.5

.0

.8



1 37

15306090



n

27 272727272727

250%

3680 277019101260942731645

520%

4940 3630249016101170939808

1010%

5630 41002820182013101060889

254%

6360 46003200208014701210971

502%

6820 493034502270158013001020

1001%

7220 521036902450169014001060



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3620 5270 7240 8360 9600 10400 11100


340

COQUILLE RIVER BASIN

14324600 SOUTH FORK COQUILLE RIVER ABOVE PANTHER CREEK, NEAR ILLAHE, OR

LOCATION. Lat 42°45'30", long 123°59'10", in SE 1/4 sec.28, T.32 S., R.ll W., Coos County, Hydrologic Unit 17100304, on left bank 0.7 mi upstream from Panther Creek, 10.0 mi northeast of Illahe, and at mile 88.5.






EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,840 ft 3/s Dec. 22, 1964, gage height, 17.07 ft, from floodmarks, from rating curve extended above 1,100 ft /s on basis of slope-area measurement at gage height 12.75 ft; minimum, 0.94 ft 3/s Sept. 28, 1970.





1 37

14306090

120183


n

13 1313131313131313

250%

1.5 1.51.61.72.02.63.75.616

520%

1.2 1.21.41.41.62.13.04.310

1010%

1.1 1.21.31.31.51.92.63.78.0

20 50 1005% 2% 1%



1 37

15306090



n

14 141414141414

250%

2350 17601220812581445375

520%

3100 237016501030706545456

1010%

3870 293019901180793613509

254%

5210 383024701370908702575

502%

1001%

-



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

2850 3780 4900


341

COQOILLE RIVER BASIN

14324700 SOUTH FORK COQUILLE RIVER NEAR ILLAHE, OR

LOCATION.~Lat 42°43'30", long 124°00'40", in NW 1/4 sec.16, T.33 S., R.ll W., Coos County, Hydrologic Unit 17100305, in Siskiyou National Forest, on left bank 1.0 mi downstream from Lockhart Creek, 7.0 mi north of. Illahe, and at mile 85.1.

DRAINAGE AREA. 40.6 mi 2 , at measuring site 1.2 mi upstream from gage.



REMARKS. No regulation or diversion upstream from station. Records given herein are for measuring site.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 12,000 ftVs Dec. 22, 1964, gage height, 11.80 ft, from rating curve extended above 3,000 ft 3 /s, on basis of slope-area measurement at gage height 9.54 ft; minimum, 1.2 ft 3 /s Sept. 27-29,

1967, Sept. 28-30, 1974.





1 37

14306090

120183

n

17 1717171717171717


250%

2.1 2.12.32.52.83.85.17.320

11112345

520%

.6

.7

.8

.9

.3

.0

.0

.513

11112234

1010%

.5

.5

.6

.7

.0

.7

.5

.711

20

1, 1,1,1,1,2,3,4,9.

5%

.4

.4

.5

.6

.9

.5

.2,2.1

50 1002% 1%




1 37

15306090



n

18 181818181818

250%

3260 243016701090775607508

520%

4540 334022101360947749626

1010%

5580 4050260015301060842704

254%

7120 5100313017401210958803

50 1002% 1%



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

3750 4870 6440 7510 8890

Systematic TI =18 historical n = 0 Weighted skew - 0.244

342


14324900 SOUTH FORK COQUILLE RIVER NEAR POWERS, OR

LOCATION.~Lat 42°47'05", long 124°02'25", in SW 1/4 SW 1/4 sec.18, T.32 S., R.ll W., Coos County, Hydrologic Unit 17100305, Siskiyou National Forest, on right bank 0.8 mi upstream from Hall Creek, 7.0 mi southeast of Powers, and at mile 76.1.



GAGE. Water-stage recorder. Datum of gage is 585.32 ft above National Geodetic Vertical Datum of 1929 (levels by Pacific Power t Light Co.) .



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 29,600 ftVs Dec. 22, 1964, gage height, 23.00 ft, from floodmarks, from rating curve extended above 9,300 ft /s on basis of slope-area measurement of peak flow; minimum, 6.5 ft /s

Oct. 3-5, 1960.





1 37

14306090

120183


n

13 1313131313131313

250%

13 1313141517223071

520%

9.7 9.910111215182448

1010%

8.2 8.58.99.31114172239

20 50 1005% 2% 1%



1 37

15306090



n

14 141414141414

250%

7900 596042402870203015601320

520%

10900 806058003740252019501620

1010%

14100 1020070804350289022301830

254%

20000 1390090105180340026102090

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

9940 13100 16800 19000


343


14325000 SOUTH FORK COQUILLE RIVER AT POWERS, OR

LOCATION. Lat 42°53'30", long 124°04' 10", in SE 1/4 sec.12, T.31 S., R.12 W., Coos County, Hydrologic Unit17100305, on left bank 0.6 mi downstream from highway bridge at Powers, 0.9 mi upstream from Woodward Creek, and at mile 64.5.


PERIOD OF RECORD. September 1916 to September 1926, October 1928 to 1987.

REVISED RECORDS.--WSP 1184: 1946W). WSP 1448: 1917-18<M), 1919, 1920(M), 1925.

GAGE. Water-stage recorder. Datum of gage is 197.42 ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 17, 1938, nonrecording gage at various sites within 1 mi of present site at different datums.



EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 48,900 ft 3/s Dec. 22, 1964, gage height, 26.51 ft, fromfloodmarks, from rating curve extended above 19,000 ft 3/s on basis of contracted-opening measurement at gage height 18.14 ft and slope-area measurement of peak flow; minimum discharge, 8.8 ft 3/s Sept. 28, 1987.





1 37

14306090

120183


n

67 6767676767676767

250%

19 20202123283344

109

520%

15 1616171922253270

1010%

14 1414151719222755

205%

13 1313141617202445

502%

11 1212131416182136

1001%

11 1111121415172030



1 37

15306090



n

68 686868686868

250%

11000 786056003970295023101980

520%

15500 1130078405320387030002570

1010%

18600 1390093806170440033902900

254%

22800 17300114007230502038203280

502%

25900 20100129007990543041103530

1001%

29200 23000145008740582043803760



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

10400 26200


344


14326500 MIDDLE FORK COQtJILLE RIVER NEAR MYRTLE POINT, OR

LOCATION. Lat 43°01'30", long 124°05'20", in NW 1/4 SE 1/4 sec.26, T.29 S., R.12 W., Coos County, Hydrologic Unit 17100305, 0.3 mi downstream from Indian Creek, 2 mi upstream from South Fork, and 3.8 mi southeast of Myrtle Point.



GAGE. Water-stage recorder. Datum of gage is 41.20 ft above National Geodetic Vertical Datum of 1929. Prior to Dec. 4, 1930, staff gage at same site and datum.

REMARKS. No diversion upstream from station. Flow regulated during winter and spring months by operation of log ponds.

AVERAGE DISCHARGE. 16 years, 743 ft 3/s.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 23,600 ft 3/s Jan. 2, 1933, gage height, 22.5 ft, from rating curve extended above 9,000 ft 3/s; minimum daily, 1.0 ft 3/s July 16, 17, 1931.





1 37

14306090

120183


n

15 1515151515151515

250%

12 1213131417202979

520%

5.9 6.77.38.01112152048

1010%

3.5 4.25.26.19.211131736

205%

2.1 2.63.94.88.310111428

50 1002% 1%



1 37

15306090



n

16 161616161616

250%

10500 753057004350309024702100

520%

14400 1030077605880395031602740

1010%

16900 1210088906640438035003080

254%

19800 14200101007380479038503430

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


345


14326800 NORTH FORK COQUILLE RIVER NEAR FAIRVIEW, OR

LOCATION. Lat 43°11'03", long 124°04'33", in SW 1/4 SE 1/4 sec.35, T.27 S., R.12 W., Coos County, Hydrologic Unit 17100305, on right bank 0.2 mi downstream from Lost Creek, 2.2 mi south of Fairview, and at mile 22.2.



REVISED RECORDS. WRD Oreg. 1972: 1964-67, 1969-71(M,P).

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 79.72 ft above National Geodetic Vertical Datum of 1929 (from stadia survey). Prior to Aug. 17, 1978, at site 0.5 mi downstream at datum 16.38 ft lower with supplementary water-stage recorder and Crest-stage gage at present site used during periods of backwater.

REMARKS.' No regulation. Several diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,760 ft 3 /s Mar. 2, 1972; maximum gage height, 18.80 ft, previous site and datum, Jan. 8, 1976, backwater from ponding in valley below; maximum gage height unaffected by backwater, 18.03 ft, previous site and datum, Jan. 8, 1976; minimum discharge, 2.0 ft 3/s Sept. 9, 10, 1967.





1 37

14306090

120183

n

17 1717171717171717


4 445579

250%

.1

.2

.5

.0

.6

.8

.91434

23334569

520%

.9

.0

.3

.6

.1

.4

.9

.725

2 2233458

1010%

.4

.5

.8

.1

.6

.6

.9

.421

2 2223457

205%

.1

.2

.6

.8

.3

.1

.3

.518

50 1002% 1%

_ _



1 37

15306090



n

18 181818181818

250%

3340 2700203013901080850746

520%

4720 36202720183013701120974

1010%

5530 412031302110153012601090

254%

6440 463035902420169014001190

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

254%

50 2%

100 1%

3030 4660 6950 8450 10300


346


14327000 NORTH FORK COQUILLE RIVER NEAR MYRTLE POINT, OR

LOCATION. Lat 43°04'15", long 124°06'20", in SE 1/4 sec.10, T.29 S., R.12 W., Cods County, Hydrologic Unit 17100305, near center of span on downstream side of highway bridge 1.6 mi northeast of Myrtle Point, and at mile 4.1.


PERIOD OF RECORD. December 1928 to September 1946, October 1963 to September 1968.

GAGE. Wire-weight gage read once daily and crest-stage gage. Datum of gage is 2.79 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1930, chain gage at present site and different datum. Oct. 1, 1930, to Sept. 30, 1946, water-stage recorder at site 4.5 mi upstream at datum 8.15 ft higher.


AVERAGE DISCHARGE. 22 years (water years 1930-46, 1964-68), 945 ft3/s, 684,200 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 38,400 ftVs Dec. 23, 1964, gage height, 37.67 ft; minimum observed, 1.2 ftVs Aug. 12, 1968.





1 37

14306090

120183


n

21 2121212121212121

250%

22 22242527323851

122

520%

13 1314151822283784

1010%

9.1 9.911121419243270

205%

6.7 7.58.49.21216222961

502%

4.6 5.46.27.09.414202652

1001%




1 37

15306090



n

22 222222222222

250%

8920 753062204930360028902560

520%

13800 1090086206620468036903270

1010%

18600 13900104007590530041203650

254%

26800 18700129008660599046004060

502%

35000 23200148009370645049004330

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


347

ROGUE RIVER BASIN

14327500 ROGUE RIVER ABOVE BYBEE CREEK, NEAR UNION CREEK, OR

LOCATION.~Lat 42°56'05", long 122°25'15", in NE 1/4 sec.26, T.30 S., R.3 E., Jackson County, Hydrologic Unit 17100307, on left bank 700 ft upstream from Bybee Creek, 2.3 mi northeast of village of Union Creek, and at mile 186.1 (river-profile survey).


PERIOD OF RECORD. January 1930 to September 1952.

GAGE. Water-stage recorder. Elevation of gage is 3,465 ft, from river-profile map. Prior to Nov. 23, 1934, water-stage recorder at site 200 ft downstream at different datum.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,430 ft 3 /s Nov. 29, 1942 and Dec. 28, 1945, gage height, 7.84 ft, from rating curve extended above 1,600 ft 3 /s by logarithmic plotting; minimum dally, 180 ft 3 /s Jan. 7, 1937.





1 37

14306090

120183


n

22 2222222222222222

250%

254 260264270274282290298329

520%

217 224230235239245250256276

1010%

200 208215220224228232238255

205%

188 196203208212215218224240

502%

175 184192196200201204210225

1001%




1 37

15306090



n

22 222222222222

250%

1850 1540130011601050934824

520%

2560 20501680148013201140988

1010%

3030 238019201670147012401080

254%

3640 277022301900165013501170

502%

4110 306024502060178014201230

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%


348

ROGUE RIVER BASIN

14328000 ROGUE RIVER ABOVE PROSPECT, OR

LOCATION. Lat 42°46'30", long 122°29'55", in SE 1/4 NE 1/4 sec.19, T.32 S., R.3 E. r Jackson County, Hydrologic Unit 17100307, Rogue River National Forest, on left bank 1.4 mi upstream from Pacific Power and Light Co. diversion dam, 1.8 mi northwest of Prospect, and at mile 173.4.


PERIOD OF RECORD. January 1908 to February 1912, October 1923 to 1987. Monthly discharge only for some periods, published in WSP 1318. Prior to October 1925, published as "near Prospect."

REVISED RECORDS. WSP 1248: 1925, 1927(M). WSP 1738: Drainage area.

GAGE. Water-stage recorder. Elevation of gage is 2,620 ft, from river-profile map. Prior to Feb. 17, 1912, nonrecording gage at several sites within a few hundred feet upstream at various datums.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 22,400 ft 3/s Dec. 22, 1964, gage height, 11.55 ft, from floodmark, from rating curve extended above 9,000 ft 3/s on basis of slope-area measurement at 16,600 ft 3/s;

minimum observed discharge, 200 ft 3/s Nov. 20, 1931.





1 37

14306090

120183


n

65 6565656565656565

250%

366375379385394405417433511

520%

303 312317322329338347358410

1010%

273 282288292299307314323366

205%

251 259266270275284289297333

502%

227 235242246251259262270299

1001%

213 220227231236243246253278



1 37

15306090



n

66 666666666666

250%

4110 328025802080176014901340

520%

6400 501036802770226018601640

1010%

8060 629044503210255020701800

254%

10300 806054703740287022901970

502%

12100 949062504110310024402090

1001%

13900 1100070504480330025702180



1.25. 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3050 7570 13000 15600 18600


349

UPPER ROGUE RIVER BASIN

14330000 ROGUE RIVER BELOW PROSPECT, OR

LOCATION. Lat 42°43'50", long 122°30'55", in SE 1/4 NW 1/4 sec.6, T.33 S., R.3 E. r Jackson County, Hydrologic Unit 17100307, on right bank 600 ft downstream from Prospect No. 1 powerplant, 1.4 mi downstream from Mill Creek, 2.0 mi southwest of Prospect, 2.1 mi upstream from South Fork Rogue River, and at mile 169.4.


PERIOD OF RECORD. August 1913 to September 1930, October 1968 to 1987.

REVISED RECORDS. WSP 1518: 1914-23, 1924(M), 1925, 1928.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,964.56 ft above National Geodetic Vertical Datum of 1929 (Pacific Power and Light Co. bench mark). Prior to September 1927 nonrecording gage at site 1,000 ft upstream, above powerplants, at different datum, also concurrent nonrecording gage on headrace to obtain equivalent combined flow.

REMARKS. Fluctuations caused by powerplant 600 ft upstream from station. Small diversions for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 10,900 ft 3/s Jan. 18, 1971, gage height, 7.62 ft, fromhigh-water mark; minimum discharge, 205 ft /s Sept. 17, 22, 24, 1980, caused by regulation of diversion gatesupstream.

EXTREMES OUTSIDE PERIOD3 OF RECORD. Maximum stage since at least 1890, 12.4 ft Dec. 22, 1964, from floodmarks, discharge, 25,000 ft /s, from records for station upstream from Prospect (station 14328000) and for station downstream from South Fork Rogue River near Prospect (station 14335000) after adjusting for estimated intervening tributary inflow.





1 37

14306090

120183


n

18 1818181818181818

250%

845 870889913940968996

10301140

520%

732 753767785809839865892991

1010%

683700710724748779804830925

205%

647 659667678700733756783875

50 1002% 1%



1 37

15306090



n

22 222222222222

250%

5100 421033802820245021402010

520%

7410 600045903630306026102440

1010%

8810 709053104090341028702670

254%

10400 838061304600380031502920

502%

11500 927066904940406033403080

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


historical n

350

ROGUE RIVER BASIN

14330500 SOUTH FORK ROGUE RIVER ABOVE IMNAHA CREEK, NEAR PROSPECT, OR

LOCATION.---Lat 42°42'25", long 122023'20", in NE 1/4 sec.18, T.33 S., R.4 E., Jackson County, Hydrologic Unit 17100307, on left bank 900 ft upstream from Imnaha Creek, 1,200 ft upstream from South Fork diversion dam, and 6 mi southeast of Prospect.



GAGE. Water-stage recorder. Elevation of gage is 3,390 ft, from river-profile map.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 2,170 ft 3 /s Dec. 1, 1942, gage height, 6.21 ft, from rating curve extended above 250 ftVs on basis of former curve defined to 1,000 ft 3 /s; minimum, 27 ft 3 /s Oct. 1-21, 1931.





1 37

14306090

120183


n

17 1717171717171717

250%

45 4646474951545768

520%

39 3940414243454856

1010%

36 3737383940414351

205%

34 3435363637384047

50 1002% 1%




1 37

15306090



n

18 181818181818

250%

574 476404353320280242

520%

880 701564478424366311

1010%

1130 880679558483413349

254%

1500 1140836658551462389

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1110 1380 1750


351

ROGUE RIVER BASIN

14331000 IMNAHA CREEK NEAR PROSPECT, OR

LOCATION. Lat 42°41'20", long 122°23'00", in NE 1/4 sec.18, T.33 S., R.4 E., Jackson County, Hydrologic Unit 17100307, on left bank 1,200 ft upstream from mouth and 6 mi southeast of Prospect.


PERIOD OF RECORD. September 1931 to October'1949.

GAGE. Staff gage. Elevation of gage is 3,400 ft, from river-profile map.


AVERAGE DISCHARGE. 18 years (water years 1932-49), 42.8 ft 3/s.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 500 ft 3/s Feb. 13, 1945, gage not read, computed on basis of records for South and Middle Forks Rogue River near Prospect; minimum observed, 11 ft 3 /s Dec. 14, 1931, gage height, 0.46 ft.





1 37

14306090

120183


n

151515151515151515

250%

19 1919202020212225

520%

16 1717171818181921

1010%

15 1616161717171819

205%

15 1515161616171718

50 1002% 1%

_ _



1 37

15306090



n

16 161616161616

250%

163141118104938172

520%

277 22217514712811095

1010%

368281214175150126108

254%

501 361264208175145123

502%

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

100 386 529


352

ROGUE RIVER BASIN

14333000 MIDDLE FORK ROGUE RIVER NEAR PROSPECT, OR

LOCATION. Lat 42°44'05", long 122°24'05", in NE 1/4 NE 1/4 sec.l, T.33 S. r R.3 E. r Jackson County, Hydrologic Unit 17100307, on right bank 850 ft downstream from diversion dam and intake of Middle Fork power canal, and 4.5 mi southeast of Prospect.


PERIOD OF RECORD. May 1925 to September 1955 (includes flow of Middle Fork power canal since completion Nov. 19, 1931).

GAGE. Water-stage recorder. Datum of gage is 2,619 ft above National Geodetic Vertical Datum of 1929 (levels by theCalifornia-Oregon Power Co.). Prior to Nov. 10, 1949, water-stage recorder and staff gage at various sites and datums within 150 ft of present gage.

REMARKS. All records given herein include flow in Middle Fork power canal which diverts 850 ft upstream from station for hydroelectric power and returns water to the Rogue River above South Fork Rogue River; practically no storage upstream from diversion dam.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,120 ft 3/s Nov. 23, 1953, from rating curve extended above 250 ft on basis of shape of previous rating curves; minimum daily, 72 ft /s Aug. 24, to Sept. 5, 1931.





1 37

14306090

120183


n

22 2222222222222222

250%

111 112113114116119122125137

520%

98 99

101102103106108110119

1010%

92 94959698

100102104112

205%

88 90929294959799

108

502%

83 86888890909294

103

1001%



1 37

15306090



n

23 232323232323

250%

666557458385345314289

520%

1020 779597475419366334

1010%

1310 940692532462390356

254%

1730 1160816602513413378

502%

2100 1330910652548427391

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


353

ROG0E RIVER BASIN

14333500 RED BLANKET CREEK NEAR PROSPECT, OR

LOCATION. Lat 42°46'40", long 122°25'35", in NW 1/4 NE 1/4 sec.23, T.32 S., R.3 E., Jackson County, Hydrologic Unit 17100307, on right bank 1.8 mi downstream from Lick Creek, 3.7 mi northeast of Prospect, and at mile 4.8.


PERIOD OF RECORD.--May 1925 to September 1981.

GAGE. Water-stage recorder. Elevation of gage is 2,780 ft, from river-profile map. Prior to Sept. 7, 1949, nonrecording gage at several sites within 2.5 mi of present site at various datums.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,190 ft 3 /s Dec. 22, 1964, gage height, 7.85 ft, from rating curve extended above 1,500 ft 3 /s; minimum observed, 34 ft 3 /s sept. 3, 4, 25, Oct. 9, 16, 1931.





1 37

14306090

120183

DISCHARGE, IN'FT3/S, FOR INDICATED RECURRENCE INTERVAL, IN YEARS, AND ANNUAL NON- EXCEEDANCE PROBABILITY, IN PERCENT

n

47 4747474747474747

250%

565758596163666880

520%

47 4849505153555866

1010%

43 4345464749515360

205%

40 4041424445474956

502%

37 3738394042444652

1001%

35 3536373840424349



1 37

15306090



n

48 484848484848

250%

465 376299249220192175

520%

784 608447344288247220

1010%

1050 808568413331281247

254%

1470 1120752507384321279

502%

18401410913583423349300

1001%

2260 17401100664461377320



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

327 1910 2960


354

UPPER ROGUE RIVER BASIN

14334700 SOUTH FORK ROGUE RIVER, SOUTH OF PROSPECT, OR

LOCATION. Lat 42°42'45", long 122°30'20", in NW 1/4 SE 1/4 sec.7, T.33 S., R.3 E., Jackson County, Hydrologic Unit 17100307, on right bank 200 ft upstream from unnamed tributary, 0.6 mi upstream from Smith Creek, 1.2 mi downstream from Beaver Creek, 2.8 mi southwest of Prospect, and at mile 2.4.



GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 2,030 ft, from topographic map.

REMARKS. Some regulation by South Fork canal dam upstream. Power diversions upstream from station from South Fork Rogue River, Middle Fork Rogue River, and Red Blanket Creek divert water to Rogue River via Main Canal. During summer base flow all of streamflow is diverted for power except that for fish life. Base flow at station is principally from springs downstream from power diversions.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 9,880 ft 3/s Mar. 3, 1972, gage height, 12.71 ft, fromfloodmark; minimum discharge, 54 ft 3/s Sept. 24-30, 1970, but may have been lower during period of no record Sept. 24-30, 1970, Aug. 16-19, 1977.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage since at least 1890, 20.1 ft, Dec. 22, 1964, from floodmarks at gage, discharge, 28,500 ft /s.





1 37

14306090

120183


n

18 1818181818181818

250%

85 86889195

103109117166

520%

65 65666770767983

121

1010%

56 57585860656771

104

205%

51 5152525458596292

50 1002% 1%


PERIOD (CONSECUTIVEDAYS).

1 37

15306090



n

19 191919191919

250%

2380 199015901230989779700

520%

4540 358026801940149011201010

1010%

6220 475034202400179013001170

254%

8570 633043602960213014901340

50 1002% 1%

II II



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

1650 3060


355

ROGUE RIVER BASIN

14335000 ROGUE RIVER BELOW SOUTH FORK ROGUE RIVER, NEAR PROSPECT, OR

LOCATION. Lat 42°42'00", long 122°35'40", in SW 1/4 NW 1/4 sec.16, T.33 S., R.2 E., Jackson County, Hydrologic Unit 17100307, on left bank 130 ft upstream from highway bridge, 0.5 mi downstream from Cascade Gorge, 3.1 mi downstream from South Fork Rogue River, 6.6 mi southwest of Prospect, and at mile 160.4 (river-profile survey).


PERIOD OF RECORD. October 1928 to September 1965. Prior to May 1929 monthly discharge only, published in WSP 1318.

GAGE. Staff gage. Datum of gage is 1,707.57 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench mark). Prior to June 23, 1961, water-stage recorder at sites 195 ft downstream; prior to Aug. 31, 1957, water-stage recorder at datum 0.69 ft higher and Aug. 31, 1957 to June 22, 1961, water-stage recorder at datum 0.31 ft lower.

REMARKS. Considerable diurnal fluctuation caused by powerplant 5.5 mi upstream from station. Small diversions for irrigation upstream from station.

AVERAGE DISCHARGE.--37 years, 1,799 ftVs, 1,302,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 55,000 ftVs Dec. 22, 1964, gage height, 23.0 ft, from floodmark, from rating curve extended above 18,000 ft 3 /s by logarithmic plotting; minimum since intake was lowered Aug. 18, 1934, 493 ft /s Sept. 1, 1934 (prior to Aug. 18, 1934, minimum not determined).





1 37

14306090

120183


n

36 363636.3636363636

250%

878 902913927946971997

10301180

520%

749 768780792808828845872963

1010%

689704715726740757770794864

205%

643 654665674686700710733790

502%

595 601611618629640646668713

1001%

565 567577583592601605627666



1 37

15306090



n

37 373737373737

250%

6720 559044903780337030102780

520%

11300 892066705200440038403460

1010%

15600 1190085806290509043603860

254%

23100 16800116007870598049704310

502%

30500 21500145009190665054204620

1001%

39700 271001780010700734058404910



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

5490 20700 30000 38700 49300


356

ROGUE RIVER BASIN

14335500 SOUTH FORK BIG BUTTE CREEK NEAR BUTTE FALLS, OR

LOCATION. Lat 42°32°25", long 122833'15", in NE 1/4 SW 1/4 sec.11, T.35 S. f R.2 E., Jackson County, Hydrologic Unit 17100307, on right bank 10 ft downstream from Ginger Creek, 0.6 mi east of town of Butte Falls, and at mile 14.0.


PERIOD OF RECORD. September 1910 to October 1911 (published as "at Butte Falls"), August to October 1915, October 1917 to September 1922, March 1925 to 1987. Monthly discharge only August, September 1915, published in WSP 1318.

REVISED RECORDS. WSP 1288: 1911, 1918-19, 1921-22, 1929. WSP 1318: 1918-19. WSP 1738: Drainage area.

GAGE. Water-stage recorder. Concrete control since Oct. 1, 1968. Elevation of gage is 2,360 ft, fromriver-profile map. Sept. 21, 1910, to Sept. 30, 1922, nonrecording gage at site 300 ft upstream at different datum.

REMARKS. Flow slightly regulated since 1952 by Willow Creek Reservoir, capacity, 7,320 acre-ft. Diversions for irrigation upstream from station and for municipal water supply for Medford (since 1927) and Butte Falls.

AVERAGE DISCHARGE. 68 years (water years 1911, 1918-22, 1926-87), 154 ft 3/s, 111,600 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 12,600 ft 3/s Dec. 22, 1964, gage height, 7.65 ft, from rating curve extended above 1,600 ft 3 /s on basis of slope-area measurement of peak flow; minimum discharge, 29 ft 3 /s

Sept. 26, 1981.





1 37

14306090

120183


n

59 5959595959595959

250%

65 6667687073757784

520%

52 5253555760636570

1010%

45 4647485154575963

205%

40 4142434749525458

502%

35 3536384244485054

1001%

31 3233353941454751



1 37

15306090



n

60 606060606060

250%

628538451374318270248

520%

1190 979773599488403363

1010%

1710 13701040771609494439

254%

2560201014601010768613534

502%

3360 260018201210892703605

1001%

4320 3300223014201020794675



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

412 1510 2240 3500 4740 6280


357

ROGUE RIVER BASIN

14337500 BIG BUTTE CREEK NEAR MCLEOD, OR

LOCATION. Lat 42°39'05", long 122°41'25", in NE 1/4 NW 1/4 sec.3, T.34 S., R.I E., Jackson County, HydrologicUnit 17100307, on right bank 225 ft upstream from county road bridge, 0.9 mi south of McLeod, and at mile 0.64.


PERIOD OF RECORD. October 1945 to September 1957. October 1967 to 1987.


GAGE. Water-stage recorder. Datum of gage is 1,525.95 ft above National Geodetic Vertical Datum of 1929. Oct. 9, 1945, to Sept. 30, 1957, nonrecording gage at site 260 ft downstream at datum 0.53 ft higher.

REMARKS. Slight regulation by fish hatchery 600 ft upstream from station. Several diversions in the vicinity of Butte Falls, the two largest being the city of Medford diversion and Eagle Point Irrigation District Canal.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,950 ft 3 /s Dec. 22, 1955, gage height, 12.75 ft, site and datum then in use, from rating curve extended above 3,300 ft /s on basis of slope-area measurement of peak flow; minimum discharge, 6.4 ft 3/s June 23, 24, 1977.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Dec. 22. 1964, reached a stage of 18.6 ft, present site, from floodmark by local resident, discharge, 16,800 ft /s, from rating curve, at former site, extended above 9,000 ft 3 /s and field estimate of overflow.





1 37

14306090

120183


n

30 3030303030303030

250%

60 5960616366718099

520%

43 4446485052566275

1010%

34 3740424346495465

205%

27 3235373941434758

502%

20 2630323436384152

1001%

16 2327293133353748



1 37

15306090



n

32 323232323232

250%

2240 178013601010779628569

520%

3830 2940216015301160934844

1010%

4860 36402620182013801100994

254%

6100 441031002120161012801150

502%

6950 491033902310175013901240

1001%

7740 535036402470187014901320



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


358

ROGUE RIVER BASIN

14337600 ROGUE RIVER NEAR MCLEOD, OR

LOCATION. Lat 42°39'20", long 122°42'50", in SW 1/4 sec.33, T.33 S., R.I E., Jackson County, Hydrologic Unit 17100307, on left bank at Obstinate J Ranch, 1.3 mi downstream from Big Butte Creek, 1.6 mi southwest of McLeod, and at mile 154.0.



GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,489.08 ft above National Geodetic Vertical Datum of 1929.

REMARKS. Flow regulated since February 1977 by Lost Creek Lake (station 14335040) . Diversions for irrigation upstream from station; most of low flow of Big Butte Creek is diverted near Butte Falls.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 30,000 ftVs Mar. 3, 1972, gage height, 12.24 ft; minimumdischarge, 468 ft 3 /s Feb. 18, 1977, result of closure of Lost Creek Dam, minimum prior to that time, 604 ft 3 /s

Sept. 5, 1968.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage since at least 1928, 20.35 ft Dec. 22, 1964, from floodmarks, discharge, 74,300 ft /s, from slope-area measurement of peak flow.





1 37

14306090

120183


n

10 1010101010101010

250%

1030 10401060108011001130115011801380

520%

893 903914930943973993

10101160

10 2010% 5%

830 838847859874902918935

1070

50 1002% 1%



1 37

15306090



n

11 111111111111

250%

9450 806066705370437036703360

520%

16000 13400103007760599049004480

1010%

21600 18200133009580719058105280

25 50 1004% 2% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

26900


359

ROGUE RIVER BASIN

14337600 ROGUE RIVER NEAR MCLEOD, OR Continued






1 37

14306090

120183


FT 3 /S, FORIN YEARS,



2 550% 20%

_ _

1010%

205%

--

--

PERCENT

502%

-

1001%



1 37

15306090



n

10 101010101010

250%

7560 711058704530366030402760

520%

11000 1000080406120484037703460

10 2510% 4%

13100 1150091707040559042103920

50 1002% 1%

:: :: __ __MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 80%

250%

5 20%

10 10%

254%

50 2%

1001%


360

ROGUE RIVER BASIN

14337800 ELK CREEK NEAR CASCADE GORGE, OR

LOCATION. Lat 420 46'25", long 122°40'15", in NW 1/4 sec.23, T.32 S., R.I E., Jackson County, Hydrologic Unit17100307, on right bank 0.1 mi downstream from Sugarpine Creek, 6.5 mi northwest of town of Cascade Gorge, and at mile 10.7.



GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,813.83 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers).

REMARKS. No regulation. Many diversions upstream from station for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,780 ftVs Jan. 15, 1974, gage height, 8.9 ft, from floodmark; minimum daily discharge, 0.72 ft 3 /s Aug. 24, 1973.





1 37

14306090

120183


n

13 1313131313131313

250%

2.4 2.62.83.23.74.66.08.420

520%

1.5 1 .71.92.32.73.54.76.614

1010%

1.2 1.41.61.92.33.04.15.711

20 50 1005% 2% 1%




1 37

15306090



n

14 141414141414

250%

2370 16201080768574432371

520%

3390 260017701140803605536

1010%

3700 307021401300889674613

254%

3880 348025001430952727681

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

2170 3080 5370


361

ROGUE RIVER BASIN

14337870 WEST BRANCH ELK CREEK NEAR TRAIL, OR

LOCATION. Lat 42°42'40«, long 122°44'55", in SW 1/4 sec.7, T.33 S., R.I E., Jackson County, Hydrologic Unit17100307, on Bureau of Land Management land, on left bank 300 ft upstream from Spot Creek and 5.3 mi northeast of Trail.


PERIOD OF RECORD.--October 1973 to September 1976, October 1977 to 1987.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,773.24 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark).



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,410 ft 3/s Jan. 15, 1974, gage height, 5.30 ft, from rating curve extended above 600 ft /s on basis of slope-area measurement of peak flow; minimum, 0.26 ft /s

Sept. 16, 1981.





1 37

14306090

120183

ININTERVAL,

FT3/S , FORIN YEARS,



n

11 1111111111111111

1 11111123

250%

.3

.3

.3

.4

.5

.7

.9

.1

.5

0 00001112

520%

.7

.7

.8

.8

.9

.1

.3

.6

.8

0 00000112

1010%

.5

.5

.5

.6

.7

.8

.0

.3

.6

205%

PERCENT

502%

::

1001%




1 37

15306090



n

13 131313131313

250%

371 245166118876655

520%

525 3672581691138878

1010%

635 4573211961249892

25 50 1004% 2% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

576 811 975


362

ROGUE RIVER BASIN

14338000 ELK CREEK NEAR TRAIL, OR

LOCATION.~Lat 42°39'50", long 122°44'50", in SW 1/4 sec.30, T.33 S., R.I E., Jackson County, Hydrologlc Unit 17100307, on right bank 3.3 mi northeast of Trail and at mile 0.4.


PERIOD OF RECORD. October 1945 to 1987. Prior to March 1946 monthly discharge only, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 1,456.56 ft above National Geodetic Vertical Datum of 1929. Prior to July 5, 1946, nonrecording gage at various sites within 1.0 mi of present site at different datums. July 5, 1946, to June 22, 1950, nonrecording gage, and June 23, 1950, to May 23, 1954, water-stage recorder, at site 0.3 mi upstream at datum 12.14 ft higher.

REMARKS. Low flow regulation resulting from construction of Elk Creek Dam 1.3 mi upstream. Diversions for irrigation and dam construction upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 19,200 ft 3 /s Dec. 22, 1964, gage height, 18.84 ft, from rating curve extended above 4,700 ft 3 /s on basis of slope-area measurement of peak flow; minimum discharge, 0.24 ft 3/s

Sept. 30, 1987, result of dam construction 1.3 mi upstream.





1 37

14306090

120183


n

41 4141414141414141

250%

2.4 2.72.93.33.95.16.69.526

520%

1.5 1.71.82.02.53.44.77.017

1010%

1.21.31.41.61.92.73.95.914

205%

1.0 1.11.21.31.62.33.45.213

502%

0.8 0.91.01.01.31.82.94.511

100

0. 0.0.0.1.1.2.4.9.

1%

,7 .8,8,9,1.6,6,2.9



1 37

15306090



n

41 414141414141

250%

3830 262017301200897695596

520%

5840 4120266017301260962818

1010%

6840 49903210200014401090931

254%

7780 592038102260162012201040

502%

8290651042002420172012901110

1001%

8690 702045502540180013501160



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

3290 5190 8200 10400 13500


363

ROGUE RIVER BASIN

14339000 ROGUE RIVER AT DODGE BRIDGE, NEAR EAGLE POINT, OR

LOCATION. Lat 42°31'30", long 122°50'30", in SE 1/4 sec.17, T.35 S., R.I W., Jackson County, Hydrologic Unit17100307, on right bank 50 ft upstream from Dodge Bridge, 0.7 mi downstream from Reese Creek, 4.3 mi northwest of Eagle Point, and at mile 138.61.



REVISED RECORDS. WSP 1094: 1942(M), 1943, 1945(M), 1946. WSP 1738: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 1,271.39 ft above National Geodetic Vertical Datum of 1929. Prior to Dec. 21, 1938, nonrecording gage, Dec. 21, 1938, to Aug. 15, 1968, water-stage recorder, at datura 2.27 ft higher, Aug. 16, 1968, to Sept. 30, 1976, water-stage recorder, at datum 1.00 ft higher.

REMARKS. Flow regulated since February 1977 by Lost Creek Lake (station 14335040) . Diversions for irrigation upstream from station; most of low flow of Big Butte Creek (station 14337500) is diverted near Butte Falls.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 87,600 ft 3 /s Dec. 22, 1964, gage height, 12.78 ft, datum then in use, from rating curve extended above 23,000 ft /s; minimum discharge, 567 ft 3 /s Feb. 18, 1977, result of

closure of Lost Creek dam, minimum prior to that time, 611 ft 3 /s Aug. 6, 14, 29, Sept. 9, 1940.





1 37

14306090

120183


INTERVAL, IN YEARS, AND ANNUAL NON- EX CEEDANCE PROBABILITY, IN PERCENT

n

37 3737373737373737

250%

1070 10801090110011201150119012301490

520%

937 949957968983

1010104010701260

1010%

875 886894905919946969

10001150

205%

827 838845856869896916944

1080

502%

777 787793805818844860885

1000

1001%

745 754760773786812825849952



1 37

15306090



n

38 383838383838

250%

16000 1240090506820547046204270

520%

26700 204001420010000758061805600

1010%

35200 268001830012400915073106500

254%

47500 3630024200157001130088507680

502%

57900 44400293001840013100101008590

1001%

69200 53400349002130015000114009530



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

35300 47100 64900 80300 97700


364

ROGUE RIVER BASIN

14339500 SOUTH FORK LITTLE BUTTE CREEK AT BIG ELK RANGER STATION, OR

LOCATION. Lat 42°20'40", long 122°21'30", in NW 1/4 sec.21, T.37 S., R.4 E., Jackson County, Hydrologic Unit 17100307, 1.0 mi south of Big Elk ranger station, 2.5 mi upstream from Big Draw Creek, and 15 mi southeast of Lake Creek Post Office.

DRAINAGE AREA. Approximately 17 mi 2 .


GAGE. Water-stage recorder. Elevation of gage is 4,660 ft, by barometer. Prior to Oct. 28, 1942, water-stage recorder 600 ft downstream at same datum.


COOPERATION. Records for 1932-50, furnished by the Oregon Water Resources Department.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge recorded, 145 ft 3 /s May 25, 1942, gage height, 280 ft, from rating curve extended above 25 ft 3 /s; minimum recorded, 4.0 ft 3 /s July 8-15, 1931.





1 37

14306090

120183


n

23 2323232323232323

250%

7.4 7.57.67.78.08.48.89.29.7

520%

5.8 5.86.06.16.56.97.27.48.0

5 55556667

1010%

.0

.1

.2

.4

.8

.2

.4

.5

.2

20

44,4,4,5,55,5,6.

5%

.4

.5

.6

.9

.2

.6

.8

.8

.5

502%

3.8 3.94.04.34.75.05.15.15.8

1001%



1 37

15306090



n

24 242424242424

250%

80 777571634940

520%

116 113107101896853

1010%

131 127120112997459

254%

144 1391301211077962

502%

1491441351241108164

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

70 95


365

ROGUE RIVER BASIN

14341500 SOUTH FORK LITTLE BUTTE CREEK NEAR LAKECREEK, OR

LOCATION. Lat 42°24'30", long 122°36'00", in SE 1/4 sec.29, T.36 S., R.2 E., Jackson County, Hydrologic Unit 17100307, on left bank 0.5 mi upstream from intake of Rogue River Valley Canal, 1.4 mi southeast of Lakecreek, and at mile 18.1.



GAGE. Water-stage recorder. Elevation of gage is 1,725 ft, by barometer. Supplementary nonrecording gage at site 25 ft upstream used Jan. 12 to Sept. 6, 1965. Apr. 15 to June 17, 1921, nonrecording gage, and June 18, 1921, to Sept. 6, 1965, water-stage recorder at site 75 ft upstream at datum 4.97 ft higher.

REMARKS. No regulation. Diversions for irrigation upstream from station; also, in December 1958 Dead Indiancollection canal began diverting upstream from station from Code Creek and Dead Indian Creek and in December 1959 South Fork Little Butte collection canal began diverting upstream from station from South Fork Little Butte Creek, Daley Creek, and Beaver Dam Creek. These are transbasin diversions to Howard Prairie Reservoir in Klamath River basin, but eventually this water is diverted back to Rogue River basin for irrigation of lands in the Ashland-Medford area and power development enroute.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 7,660 ft 3/s Dec. 2, 1962, gage height, 8.35 ft, site and datum then in use; minimum, 2.0 ft 3 /s Aug. 10, 1931.





1 37

14306090

120183


n

35 3535353535353535

250%

13 1415151617181927

520%

9.0 9.510111112131418

1010%

6.97.37.78.38.89.5111215

205%

5.4 5.75.96.56.97.68.79.812

502%

4.0 4.14.34.85.15.76.87.810

100

3. 3.3.3.4.4.5.6.9.

1%

.2

.2

.4

.8

.0

.6,7.7.3



1 37

15306090



n

36 363636363636

250%

760 615497416351292255

520%

1310 995747581477403347

1010%

1690 1230878651527448384

254%

2170 15001010711566484413

502%

2520 16701080739583500426

1001%

2860 18401140760594511435



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1160 2090 3840 4660 5530


37 historical n = 0 = -0.193

366

ROGUE RIVER BASIN

14341500 SOUTH FORK LITTLE BUTTE CREEK NEAR LAKECREEK, OR Continued





1 37

14306090

120183


n

21 2121212121212121

250%

11 1111121415171826

520%

8.5 8.89.2101213141520

1010%

7.5 7.88.39.41112121318

205%

6.87.17.68.81011121217

502%

6.1 6.47.08.39.510111115

1001%



1 37

15306090



n

22 222222222222

250%

751 571435348282227196

520%

1620 , 1200

832587452359307

1010%

2480 18301210780573452383

254%

3990 295018601070734573480

502%

5480 409024901310859666552

1001%

_



1.25 80%

250%

5 20%

10 10%

254%

50 2%

1001%


historical n

367

ROGUE RIVER BASIN

14342500 NORTH FORK LITTLE BOTTE CREEK AT FISH LAKE, NEAR LAKECREEK, OR

LOCATION. Lat 42°22'35", long 122°21'20", in SE 1/4 SW 1/4 sec.4, T.37 S., R.4 E., Jackson County, Hydrologic Unit 17100307, on right bank 0.5 mi downstream from Fish Lake dam, 14 mi east of Lakecreek, and at mile 15.2.


PERIOD OF RECORD. October 1914 to July 1915, June 1916 to 1987. Monthly discharge only November 1916 to May 1917, published in WSP 1318.

REVISED RECORDS. WSP 654: Drainage area (former site). WSP 1218: 1917(M). WSP 1738: Drainage area.

GAGE. Water-stage recorder and concrete control. Datum of gage is 4,571.41 ft above National Geodetic Vertical Datum of 1929. Oct. 1, 1914, to July 31, 1915, nonrecording gage at site 0.5 mi upstream at different datum. June 1, 1916, to July 9, 1918, nonrecording gage and July 10, 1918, to Oct. 28, 1932, water-stage recorder at site 0.25 mi upstream at different datums.

REMARKS. Since 1915, Fish Lake has stored water for irrigation by Medford Irrigation District. Cascade Canal diverts from Fourmile Lake in Klamath River basin and discharges into lava bed 1.0 mi upstream from Fish Lake; diversion began August 1923. No diversion from creek upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, approximately 940 ft3/s June 5, 1917, computed from rate of change in contents of reservoir after break in dam occurred; no flow at times.





PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183

n

62 6262626262626262


2 233579

250%

.9

.9

.1

.6

.1

.9

.91215

520%

0, 0,0,0,02468

.4

.4

.5

.6

.9

.5

.5

.1

.9

1010%

0 00001246

.0

.1

.1

.2

.3

.2

.8

.2

.8

205%

0.0 0.00.00.00.10.61.93.15.4

502%

0.0 0.00.00.00.00.21.12.14.1

100

0 00000013

1%

.0

.0

.0

.0

.0

.1

.8

.6

.4



1 37

15306090



n

63636363636363

250%

118 1151121091039281

520%

137 13413112812211097

1010%

146 144141138132119104

254%

156 154151148142128111

502%

163 161158155148134115

1001%

169 166164161154139118



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

120 150 162 170



368

ROGUE RIVER BASIN

14343000 NORTH FORK LITTLE BUTTE CREEK NEAR LAKECREEK, OR

LOCATION. Lat 42°24'10", long 122°32'10", in NW 1/4 sec.36, T.36 S., R.2 E., Jackson County, Hydrologic Unit 17100307, on right bank 1.2 mi upstream from Wasson Canyon, 4.9 mi east of Lakecreek, and at mile 4.8.


PERIOD OF RECORD.--September 1911 to March 1913, July to September 1917, May 1922 to December 1964, September 1965 to September 1985 (discontinued). Monthly discharge only for some periods, published in WSP 1318. Published as "above Medford intake, near Lakecreek" 1922-28, 1931-40. Records for April to September 1916, May 1917 to September 1919, April to September 1921, and October 1923 to September 1924 at site 3 mi upstream not equivalent owing to diversion and difference in drainage areas.

GAGE. Water-stage recorder. Concrete control since Oct. 9, 1968. Elevation of gage is 2,160 ft, fromtopographic map. Sept. 10, 1911, to Mar. 31, 1913, and July 1 to Sept. 30, 1917, nonrecording gage at site 1,000 ft dowstream at different datums. May 26, 1922, to Dec. 31, 1964, water-stage recorder at site 1,000 ft downstream at datum 2,125.01 ft above mean sea level.

REMARKS. Flow partly regulated since 1915 by Fish Lake (published with station 14342500). Diversions for irrigation upstream from station; some water diverted into Fish Lake from Fourmile Lake, in Klamath River basin, since 1923.

AVERAGE DISCHARGE.--63 years (water years 1912, 1923-64, 1966-85), 71.9 ft 3 /s, 52,090 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,750 ftVs Dec. 22, 1964, gage height, 6.06 ft, present site and datum; minimum discharge, 11 ft 3/s Oct. 29 to Nov. 8, 1931.





1 37

14306090

120183


n

56 5656565656565656

250%

27 2728283034394350

520%

19 1919202125293238

1010%

16 1616171821242733

205%

13 1314141518212429

502%

11 1111121316182125

1001%

9.9 9.99.9101114161923



1 37

15306090



n

59 595959595959

250%

165 151142137130118108

520%

246 212184168156140128

1010%

323 267218188171152139

254%

454 357268214187165151

502%

581 441311234199173159

1001%

742 543360253209181166



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

152 575 1110 1430


369

ROGUE RIVER BASIN

14347000 LITTLE BUTTE CREEK ABOVE EAGLE POINT, OR

LOCATION. Lat 42°28'30", long 122°44'00", in NW 1/4 sec. 5, T. 36 S., R. 1 E., 1 mile upstream from intake of EaglePoint Canal, 3 miles east of Eagle Point, and 9.1 miles upstream from mouth.


PERIOD OF RECORD. April 1916 to September 1926, October 1928 to June 1929. Records for 1928-29, not previously published by the Geological Survey, furnished by the State engineer of Oregon.

GAGE. Staff gage. Elevation of gage is 1,390 ft (from river-profile map). Prior to Oct. 1, 1924, staff gages at site about half a mile downstream at different datums.

REMARKS. Cascade Canal has diverted water from Klamath River basin to Fish Lake reservoir since August 1923. Rogue River Valley Canal since 1904, in part through the Medford Irrigation District Canal since 1922, diverts water for irrigation of about 13,200 acres chiefly in the Bear Creek basin downstream from Phoenix. Medford municipal water supply, about 7 ft /s, was diverted upstream from station prior to 1927. Other diversions upstream from station for irrigation total about 44 ft /s, of which about 2 ft /s is used downstream from station. Regulation by Fish

Lake reservoir.

AVERAGE DISCHARGE. 10 years (1916-26), 179 ft 3 /s, 129,700 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. 1916-26, 1928-29: Maximum discharge, 7,000 ftVs Dec. 30, 1924 (gage height, 13.0, from floodmark), from rating curve extended above 1,800 ft 3 /s by logarithmic plotting; minimum observed, 6.0 ft 3/s

June 17, 1924.






1 37

14306090

120183



INDICATEDAND ANNUAL

RECURRENCENON-


2 550% 20%

1010%

::

205%

502%

-,

1001%



1 37

15306090



n

10 101010101010

250%

1940 1210888655517436384

520%

2790 17001220904726649582

1010%

3100 191013901050863790716

25 50 1004% 2% 1%



1.2525102550TOO 80% 50% 20% 10% 4% 2% 1%


370

ROGUE RIVER BASIN

14350000 EMIGRANT CREEK NEAR ASHLAND, OR

LOCATION. 43°09'50", long 122°36'15", in SE 1/4 NE 1/4 sec.20, T.39 S., R.2 E., Jackson County, Hydrologic Unit 17100309, on left bank 0.1 mi downstream from Emigrant Dam, 6 mi southeast of Ashland, and at mile 29.2.


PERIOD OF RECORD. January to June 1920, October 1921 to July 1922, February 1923 to May 1924 (incomplete), October 1924 to November 1925, February to August 1926, October 1926 to September 1928, April 1929 to September 1930, April 1931 to October 1932 (incomplete), April 1933 to September 1935, April 1936 to September 1939 (incomplete), April 1940 to September 1947, January 1948 to October 1952 (incomplete), December 1952 to 1987. Monthly discharge only for some periods, published in WSP 1318.

GAGE. Water-stage recorder and artificial control. Datum of gage is 2,042.80 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench mark). Prior to Oct. 1, 1926, water-stage recorder or nonrecording gage at several nearby sites at various datums. Oct. 1, 1926, to Feb. 24, 1959, water-stage recorder near present site at datum 10.93 ft higher. Feb. 25, 1959, to May 7, 1961, water-stage recorder at site 1.0 mi downstream at different datum.

REMARKS. Flow regulated since 1924 by Emigrant Lake. Several diversions upstream from station for irrigation; the principal diversion canals are Ashland lateral and East lateral. Records for Ashland lateral and inflow to the basin from Green Springs powerplant can be obtained from the Oregon Water Resources Department. From June 1923 to August 1960, water diverted by Keene Creek Canal from Klamath River basin into Emigrant Creek upstream from station. Beginning May 1960, water from Klamath River basin diverted to Emigrant Creek upstream from station via Green Springs powerplant diversion.

AVERAGE DISCHARGE. 46 years (water years 1925, 1927-30, 1934-35, 1941-47, 1954-86), 34.0 ft 3 /s, 24,630 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 5,260 ft 3 /s Feb. 20, 1927, by computation of peak flow over dam; no flow at times.





DISCHARGE, IN FT /S, FOR INDICATED RECURRENCE PERIOD INTERVAL, IN YEARS, AND ANNUAL NON- (CON- EXCEEDANCE PROBABILITY, IN PERCENT

SECU- ____________________________________________________ TIVE 2 5 10 20 50 100 DAYS) n 50% 20% 10% 5% 2% 1%

37

14306090

120183



1 37

15306090



n

10 101010101010

250%

295 2612091471068468

520%

704 582438290204150121

1010%

1020 814598390278197156

254%

--

50 1002% 1%

--



T725 2 5 10 25 50 100 80% 50% 20% 10% 4% 2% 1%


371

ROGUE RIVER BASIN

14350000 EMIGRANT CREEK NEAR ASHLAND, OR Continued






1 37

14306090

120183


n

24 2424242424242424

250%

0.0 0.10.10.10.10.10.61.79.3

520%

0.0- 0.00.00.00.00.00.11.3

1010%

:: 0.00.4

205%

:: 0.1

502%

:: 0.0

1001%

:: -~MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW



1 37

15306090



n

25 252525252525

250%

278 2622341771279778

520%

589 557479348230164128

1010%

862817689499316219168

254%

1280 12201010739446299228

502%

1650 15801280956561367279

1001%

2070 198015901210691443336



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%


historical n =

372

ROGUE RIVER BASIN

14353000 WEST FORK ASHLAND CREEK NEAR ASHLAND, OR

LOCATION. Lat 42°08'55", long 122°42'55", near line between NW 1/4 and SW 1/4 sec.28, T.39 S., R.I E., Jackson County, Hydrologic Unit 17100308, in Rogue River National Forest, on left bank 0.3 mi above city diversion, 2.5 mi south of Ashland, and at mile 0.4.

DRAINAGE AREA. 10.5 mi 2 , at diversion dam 0.3 mi downstream.

PERIOD OF RECORD. September 1924 to January 1933, water years 1954-60, 1963, annual maximum; December 1974 to September 1982. Monthly discharge only for some periods published in WSP 1318.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 2,962.75 ft above National Geodetic VerticalDatum of 1929. Sept. 10, 1924, to Jan. 31, 1933, water-stage recorder at site about 0.2 mi upstream at different datum. Oct. 14, 1953, to Sept. 30, 1963, crest-stage gage at diversion dam 0.3 mi downstream at different datum.


AVERAGE DISCHARGE. 15 years (water years 1925-32, 1976-82), 8.92 ft 3 /s, 11.54 in/yr, 6,460 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 330 ft 3/s Dec. 2, 1962, gage height, 15.51 ft, site and datum then in use, from rating curve defined by computation of peak flow over dam; minimum, 1.3 ft 3 /s Aug. 29, 1931, Sept. 8, 9, 1977.





I 37

14306090

120183

n

14 1414141414141414


250%

2 2,2,2222,3,3,

.1

.1

.2

.3

.4

.7,9.1.9

520%

I IIII2223

.7

.7

.7

.8

.9

.1

.2

.4

.0

10 2010% 5%

1, I,1,111,2,22,

.5 1.4

.5 1.4

.5 1.4

.6 1.5

.6 1.5

.8 1.6

.0 1.8

.1 1.9

.6 2.4

50 1002% 1%


DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCEPERIOD(CONSECUTIVEDAYS)

I 37

15306090

n

15 151515151515

250%

40 332722181615

INTERVAL,EXCEEDANCE

520%

74 584334292623

IN YEARS,PROBABILITY

1010%

99 765442363228

AND ANNUAL, IN PERCENT

25 504% 2%

132 1006651444034

1001%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

148 245 672


373

ROGUE RIVER BASIN

14353500 EAST FORK ASHLAND CREEK NEAR ASHLAND, OR

LOCATION.~Lat 42°09'10", long 122°42'30", near line between NE 1/4 and NW 1/4 sec.28, T.39 S., R.I E., Jackson County, Hydrologic Unit 17100308, Rogue River National Forest, on left bank 0.1 mi above city diversion dam, 2.5 mi south of Ashland, and at mile 0.2.

DRAINAGE AREA. 8.14 mi , at diversion dam 0.1 mi downstream.

PERIOD OF RECORD. September 1924 to January 1933, water years 1954-60, 1963, annual maximum, December 1974 to September 1982.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 2,903.70 ft above National Geodetic Vertical Datum of 1929. Sept. 10, 1924, to Jan. 31, 1933, water-stage recorder at site about 200 ft downstream at different datum. Oct. 19, 1953, to Sept. 30, 1963, crest-stage gage at diversion dam 0.1 mi downstream at different datum.

REMARKS. No regulation or diversion.

AVERAGE DISCHARGE. 15 years (water years 1925-32, 1976-82), 9.37 ft 3/s, 15.63 in/yr, 6,790 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 335 ftVs Dec. 2, 1962, gage height, 5.42 ft, site and datum then in use, from rating curve defined by computations of peak flow over dam; minimum, 0.47 ft 3/s Mar. 14, 1977, result of freezeup.




PERIOD (CON

SECUTIVEDAYS)

1 37

14306090

120183


n

14 1414141414141414

2 22222233

250%

.1

.2

.2

.3

.5

.7

.9

.1

.9

1 11112223

520%

.6

.6

.6

.8

.9

.1

.2

.4

.0

1 11111122

1010%

.3

.3

.4

.6

.7

.8

.9

.0

.5

20 505% 2%

1.1 1.11.21.41.51.61.61.82.2

1001%

_



1 37

15306090



n

15 151515151515

250%

43 342823191615

520%

79 624638312724

1010%

105 835948403430

254%

139 1127460504338

50 1002% 1%



1.2525102550100 80% 50% 20% 10% 4% 2% 1%

30742T94l486214302290


374

ROGUE RIVER BASIN

14357500 BEAR CREEK AT MEDFORD, OR

LOCATION.~Lat 42019'40«, long 122°52'10«, in NW 1/4 sec.30, T.37 S., R.I W. f Jackson County, Hydrologic Unit 17100308, on left bank 40 ft upstream from Main Street Bridge, in Medford, and at mile 9.91.


PERIOD OF RECORD. March 1915 to June 1920 (no low-flow records), October 1920 to September 1981, December 1983 to 1987. Monthly discharge only for some periods, published in WSP 1318.

REVISED RECORDS. WSP 1044: 1944. WSP 1448: 1916, 1917(M), 1918-20, 1922, 1924, 1927(M), 1928, 1930. WSP 1568: Drainage area.

GAGE. Water-stage recorder and concrete control. Datum of gage is 1,341.98 ft above National Geodetic Vertical Datum of 1929. Dec. 31, 1947, to Sept. 23, 1985, at datum 2.00 ft higher. See WSP 1738 for history of changes prior to Dec. 31, 1947.

REMARKS. Flow partly regulated since 1924 by Emigrant Lake (published with station 14350000). Numerous diversions for irrigation and municipal use upstream from station.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 14,500 ftVs Dec. 2, 1962, gage height, 10.04 ft, presentdatum; maximum gage height, about 13.0 ft Feb. 20, 1927, from floodmarks, present datum, site then in use; no flow at times.





1 37

14306090

120183

n

63 6363636363636363


250%

10 1112131618202333

3 3445679

520%

.4

.6

.1

.6

.5

.7

.9

.815

1010%

1. 1.2.2.2.3.4.5.9.

.6

.7

.0,2.7.5.3.7,1

205%

0.8 0.91.01.11.41.82.53.55.6

50

0. 0.0.0.0.0.1.1,3,

2%

,3 ,4.4.5.6,82,9,0

100

0, 0,0,0,0,0,0.11

1%

.2

.2

.2

.2

.3

.5

.7

.2

.9



1 37

15306090



n

64 646464646464

250%

942711527398304238207

520%

2280 16201130806608458394

1010%

3510 240016101110839621530

254%

5440 3550229015301150835709

502%

7140 4490282018401380996844

1001%

9040 55103370215016201160977



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

638 1640 4060 10300 13900 18200


375

ROGUE RIVER BASIN

14359000 ROGUE RIVER AT RAYGOLD, NEAR CENTRAL POINT, OR

LOCATION. Lat 42°26'15", long 122°59'10", in SW 1/4 sec.18, T.36 S., R.2 W., Jackson County, Hydrologic Unit 17100308, on right bank at Raygold, 0.1 mi downstream from Gold Ray Dam, 1.0 mi downstream from Bear Creek., 5.6 mi northwest of Central Point, and at mile 125.8.


PERIOD OF RECORD. August 1905 to 1987. Prior to October 1921, published as "near Tolo."

REVISED RECORDS. WSP 1248: 1906, 1914(M), 1915. WSP 1398: 1910(M). WSP 1738: Drainage area.

GAGE. Water-stage recorder. Datum of gage is 1,121.78 ft above National Geodetic Vertical Datum of 1929. Prior to Sept. 19, 1914, nonrecording gage and Sept. 19, 1914, to Sept. 30, 1956, water-stage recorder, at site 300 ft upstream at same datum.

REMARKS. Flow regulated since February 1977 by Lost Creek Lake (station 14335040). Slight regulation by Fish Lake (published with station 14342500) and Emigrant Lake (published with station 14350000). Many diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 82 years, 2,988 ftVs, 2,165,000 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 131,000 ftVs Dec. 23, 1964, gage height, 23.43 ft, from rating curve extended above 63,000 ft 3/s on basis of slope-area measurement of 113,000 ft 3/s; minimum discharge not determined; minimum daily, 616 ft /s Sept. .6, 1931.





1 37

14306090

120183


n

70 7070707070707070

250%

1100 11201130115011701210124012901550

520%

926 946957969985

1010104010801250

1010%

841 861870879892918944975

1110

205%

774 793801807817841864891

1000

502%

702 720726730738758777800895

1001%

656 673677680686705721742826



1 37

15306090



n

71 717171717171

250%

19400 14500108008180650054805040

520%

34100 249001750012400936076106860

1010%

46100 3360022900156001150090908050

254%

64000 46700309002010014400110009540

502%

79400 583003780023700168001250010600

1001%

96600 715004540027700193001400011700



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


71 historical n = 0.201

376

ROGUE RIVER BASIN

14359000 ROGUE RIVER AT RAYGOLD, NEAR CENTRAL POINT, OR Continued






1 37

14306090

120183

DISCHARGE, IN FT3INTERVAL, IN

/S, FORYEARS,



2 550% 20%

_ _

1010%

205%

__

502%

:: --

1001%

_ --



1 37

15306090



n

10 101010101010

250%

19100 15200118008750691055304690

520%

29400 230001720012800974074506410

10 2510% 4%

35900 2800020300152001140084507390

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%


377

ROGUE RIVER BASIN

14361500 ROGUE RIVER AT GRANTS PASS, OR

LOCATION. Lat 42°25'50", long 123°19'00", in NW 1/4 sec.20, T.36 S., R.5 W., Josephine County, Hydrologic Unit17100308, on right bank at city of Grants Pass filter plant, 0.6 mi upstream from bridge on State Highway 99 at Grants Pass, and at mile 101.8. Prior to Sept. 3, 1983, at site 300 ft upstream.


PERIOD OF RECORD. October 1938 to 1987. Prior to January 1939 monthly discharge only, published in WSP 1318.


GAGE. Water-stage recorder. Datum of gage is 884.28 ft above National Geodetic Vertical Datum of 1929. Prior to Aug. 8, 1957, at site 300 ft upstream at datum 4.00 ft higher and Aug. 8, 1957, to Sept. 2, 1983, at site 300 ft upstream at datum 1.00 ft higher.

REMARKS. Flow regulated since February 1977 by Lost Creek Lake (station 14355040), slight regulation by Fish Lake and Emigrant Lake. Large fluctuations at times caused by Savage Rapids Dam 5.5 mi upstream from station. Many diversions from Rogue River and tributaries upstream from station, the largest of which is at Savage Rapids Dam of Grants Pass Irrigation District, 5.5 mi upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 152,000 ftVs Dec. 23, 1964, gage height, 35.15 ft, present datum, from rating curve extended above 93,000 ft 3 /s; minimum discharge, 195 ft 3 /s Jan. 30, 1961; minimum

daily, 606 ft 3 /s Sept. 10, 1968.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood in December 1861 reached a stage of about 43 ft, present datum(information furnished by Corps of Engineers). Flood in February 1890 reached a stage of about 36 ft, present datum, and that of Feb. 21, 1927, about 32 ft, present datum, according to local resident.





1 37

14306090

120183


n

37 3737373737373737

250%

983 996

1010103010501100116012501600

520%

818 842858875899942991

10701330

1010%

742 772790809832875917987

1220

205%

683719739759782825861922

1140

502%

622664687708733775804854

1060

1001%

584 631655677702744769811

1010



1 37

15306090



n

37 373737373737

250%

31400 230001600011600877070806410

520%

56200 40400270001830013300103009060

1010%

75200 541003570023400168001270011000

254%

101700 740004850030500217001620013600

502%

123000 904005920036200258001900015800

1001%

145400 1083007110042400303002210018000



1.25 2 80% 50%

5 20%

10 10%

25 4%

50 2%

1001%

96500 130500 157800 186600


378

ROGUE RIVER BASIN

14361500 ROGUE RIVER AT GRANTS PASS, OR Continued


[n = * number of values used to compute statistics]



DISCHARGE, IN FT3/S, FOR INDICATEDPERIOD(CONSECUTIVEDAYS) n

1 37

14306090

120183

INTERVAL,EXCEEDANCE

2 550% 20%

_ _


1010%

_

RECURRENCEANNUAL NON-IN PERCENT

205%

_

502%

1001%

_



1 37

15306090



n

10 101010101010

250%

25700 199001510011200872068205750

520%

39100 2920021600163001230094308090

10 2510% 4%

48000 35200254001930014400109009510

50 1002% 1%

_ _



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

Systematic n = historical n Gereralized 17b skew =

379

ROGUE RIVER BASIN

14361600 ELLIOTT CREEK NEAR COPPER, OR

LOCATION. Lat 42°00'16", long 123°09'00", In W-l/2 sec.17, T.48 N., R.ll W., Mt. Diablo Meridian, SlsklyouCounty, CA, Hydrologlc Unit 17100309, Rogue River National Forest, on left bank 0.3 mi upstream from Middle Fork Applegate River and 1.5 mi south of former town of Copper.


PERIOD OF RECORD. October 1977 to September 1987 (discontinued).

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 2,023.56 ft above National Geodetic Vertical Datum of 1929.

REMARKS. No diversion or regulation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 3,980 ft 3 /s Dec. 19, 1981, gage height, 7.13 ft; minimum discharge, 3.9 ft 3/s Sept. 10, 1980; minimum daily, 7.1 ft 3/s Sept. 14-16, 1981.





DISCHARGE, IN FT3 /S, FOR INDICATED RECURRENCEPERIOD(CONSECUTIVEDAYS) n

1 37

14306090

120183

INTERVAL,EXCEEDANCE

2 550% 20%

IN YEARS, AND ANNUAL NON-PROBABILITY, IN

10 2010% 5%

PERCENT

502%

1001%



1 37

15306090



n

10 101010101010

250%

934 683481366287227195

520%

1720 1240837593448329290

1010%

2380 16901110755560390355

25 50 1004% 2% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

747 1300 2220 2920


380

ROGUE RIVER BASIN

14362000 APPLEGATE RIVER NEAR COPPER, OR

LOCATION. Lat 42°03'50", long 123°06'37", in SW 1/4 NW 1/4 sec.30, T.40 S., R.3 W., Jackson County, Hydrologic Unit 17100309, U.S. Corps of Engineers land, on left bank 0.1 mi downstream from Brushy Gulch, 0.6 mi downstream from Applegate Dam, 3.1 mi northeast of former town of Copper, and at mile 45.7.


PERIOD OF RECORD. October 1938 to 1987. Prior to January 1939 monthly discharge only, published in WSP 1318.

REVISED RECORDS. WDR OR-78-1: Drainage area.

GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 1,747.51 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1977, at site 0.6 mi upstream at datum 12.15 ft higher.

REMARKS. Flow regulated since December 1980 by Applegate Lake (station 14361900). Some storage during winter in Squaw Lakes Reservoir, capacity, 1,100 acre-ft on Squaw Creek upstream from station. Diversions upstream from station from Carberry Creek for irrigation in Thompson Creek basin.

AVERAGE DISCHARGE. 49 years, 451 ft 3 /s, 326,700 acre-ft/yr, adjusted for storage.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 29,800 ft 3 /s Jan. 15, 1974, gage height, 25.38 ft, site anddatum then in use, from high-water mark in well, from rating curve extended above 12,000 ft /s on basis of four slope-area measurements of peak flows made in 1950, 1955, 1964, and 1974; minimum discharge, 1.5 ft /s Dec. 20, 1980, result of regulation at Applegate dam, 0.6 mi upstream.





1 37

14306090

120183


n

41 4141414141414141

250%

35 36373941465262

114

520%

28 2829303337424879

1010%

24 2526272932374365

205%

21 2223242629343855

502%

18 1920212326303446

1001%

17 1718192224273140



1 37

15306090



n

42 424242424242

250%

4540 32902350170013101050938

520%

9100 656043902900206015801350

1010%

12800 928059303740255019001580

254%

18100 1330080304830313022601820

502%

22400 1660096805650354024901970

1001%

26900 20300114006450392027102090



1.25 80%

3090

Systematic

250%

6560

n = 42

5 20%

12900

historical

10 10%

17700

n = 0

254%

24300

50 2%

29500

100 1%

34800

Weighted skew = -0.411

381

ROGUE RIVER BASIN

14363000 APPLEGATE RIVER NEAR RUCH, OR

LOCATION. Lat 42°10 r 40", long 123°02'40", in E-l/2 sec.15, T.39 S., R.3 W. r Jackson County, Hydrologic Unit 17100309, on downstream side of left pier of Cameron Bridge, 1.6 mi upstream from Little Applegate River and 4.2 mi south of Ruch.


PERIOD OF RECORD. June 1911 to September 1914, September 1925 to September 1953. Published as "near Buncom" 1911-14. Monthly discharge only February to September 1927, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 1,475.64 ft above National Geodetic Vertical Datum of 1929 (levels by Corps of Engineers). June 18, 1911, to Sept. 30, 1914, staff gage at datum 0.88 ft lower.

REMARKS. Diversions for irrigation of about 700 acres upstream from station. Cameron (Comstoclc) ditch diverts as much as 14 ft /s around station on left bank. An average of about 8 ftVs is diverted upstream from station for

irrigation in Thompson Creek basin. Several hundred acre-feet stored in Squaw Lake (capacity, 1,100 acre-ft) each spring for irrigation the following summer.

AVERAGE DISCHARGE. 31 years (water years 1912-14, 1926-53), 389 ftVs, 281,600 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 20,000 ftVs Feb. 20, 1927, gage height, 16.0 ft, from rating curve extended above 8,000 ftVs; minimum, 7 ft 3 /s Sept. 2, 1929.





1 37

14306090

120183


n

26 2626262626262626

250%

23 2324262832374585

520%

14 1415161821253053

1010%

11 1112131416192442

205%

8.3 8.69.1101113162034

502%

6.1 6.46.97.88.910121527

1001%

5.0 5.25.66.57.58.59.81324



1 37

15306090



n

28 282828282828

250%

3380 2570192014101120909792

520%

6520 469031702170165013101130

1010%

9170 645040902720201015701360

254%

13200 908053503450248018901640

502%

16600 1130063604020284021301850

1001%

20500 1390074004610320023602060



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2440 5140 10200 14400 20300 25100 30300


382

ROGUE RIVER BASIN

14366000 APPLEGATE RIVER NEAR APPLEGATE, OR

LOCATION.~Lat 42°14'30", long 123°08'20", in NE 1/4 sec.26, T.38 S., R.4 W., Jackson County, Hydrologic Unit 17100309, on left bank 0.9 mi downstream from Keeler Creek, 1.8 mi southeast of Applegate, and at mile 26.7.



RECORDS. WSP 1738: Drainage area. WSP 1935: 1953(M). WDR OR-76-1: 1956(M), 1965(M).

GAGE. Water-stage recorder. Datum of gage is 1,285.33 ft above National Geodetic Vertical Datum of 1929. Prior to Dec. 23, 1938, nonrecording gage at same site and datum.

REMARKS. Flow regulated since December 1980 by Applegate Lake (station 14361900). Many diversions for irrigation upstream from station. McDonald Creek Canal diverts from McDonald Creek upstream from station for irrigation in Bear Creek basin. Thompson Creek Irrigation Association ditch diverts upstream from station for irrigation in Thompson Creek basin. Fowler-Keeler and Berryman ditches divert upstream from station for irrigation downstream.

AVERAGE DISCHARGE. 49 years, 556 ft 3 /s, 402,800 acre-ft/yr, unadjusted.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 37,200 ft 3/s Jan. 15, 1974, gage height, 20.41 ft, from rating curve extended above 18,000 ft /s on basis of slope-area measurements of flow at gage heights 18.00 ft and 19.57 ft; minimum discharge, 4.6 ft 3/s Sept. 22-25, 1979. Minimum since first filling of Applegate Lake, 104 ftVs Aug. 9, 1987.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Feb. 20, 1927, reached a stage of 18.7 ft, from floodmarks.





1 37

14306090

120183


n

41 4141414141414141

250%

17 18192124303851

122

520%

10 1112141619253680

1010%

8.0 8.89.8111315203063

205%

6.4 7.18.29.41113172652

502%

5.0 5.76.67.89.010142141

1001%

4.24.85.86.87.98.6121935



1 37

15306090



n

42 424242424242

250%

6030 431030702160164013101160

520%

12600 888058503830271020501750

1010%

17900 1270079405020343025102090

254%

25500 18100107006550431030302460

502%

31600 22700129007690494033802700

1001%

38000 27500151008810554037102900



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

8840 17900 25000 34800 42500 50400


383

ROGUE RIVER BASIN

14368500 POWELL CREEK NEAR WILLIAMS, OR

LOCATION. Lat 42°16'00", long 123°17'40", near center of sec.16, T.38 S., R.5 W., Josephine County, Hydrologic Unit 17100309, on left bank. 0.1 mi upstream from Blodgett ditch intake and 2 mi northwest of Williams.



GAGE. Water-stage recorder. Elevation of gage is 1,680 ft, by barometer.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 1,110 ft 3/s Jan. 18, 1953, gage height, 5.36 ft, from rating curve extended above 550 ft /s on basis of slope-area measurement at gage height 4.92 ft; minimum, 0.8 ft /s Sept. 25, 1955.





1 37

14306090

120183


n

11 1111111111111111

1 11111122

250%

.3

.3

.4

.4

.5

.6

.8

.0

.8

520%

1.0 1.01.11.11.21.31.51.62.1

1010%

0.9 0.91.01.01.11.21.41.51.8

20 50 1005% 2% 1%




1 37

15306090



n

12 121212121212

250%

322 23915398735142

520%

523 3642251451077362

10 2510% 4%

611 4142541661238472

50 1002% 1%



DISCHARGE, IN FT /S, FOR INDICATED RECURRENCE INTERVAL, IN Y^ARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT

1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

100 1%

247 1170


384

ROGUE RIVER BASIN

14369500 APPLEGATE RIVER NEAR WILDERVILLE, OR

LOCATION. Lat 42°21'15", long 123°24'20", in SE 1/4 NE 1/4 sec.16, T.37 S., R.6 W., Josephine County, Hydrologic Unit 17100309, on left bank 0.3 mi downstream from Jackson Creek, 3.6 mi southeast of Wilderville, and at mile 7.6.


PERIOD OF RECORD. October 1938 to September 1955, September 1978 to 1987.

REVISED RECORDS. WSP 1318: 1943. WSP 1738: 1951, 1953, drainage area.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 947.18 ft above National Geodetic Vertical Datum of 1929 (Corps of Engineers bench mark). Prior to Sept. 1, 1978, nonrecording gage at site 1,100 ft upstream at datum 2.36 ft higher.

REMARKS. Flow regulated since December 1980 by Applegate Lake (station 14361900). Many diversions for irrigation upstream from station. Wilderville ditch diverts up to 16 ft /s 0.3 mi upstream and at the mouth of Jackson Creek.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 47,500 ft 3/s Jan. 18, 1953, gage height, 18.3 ft, fromfloodmark, site and datum then in use, from rating curve extended above 12,000 ft 3/s on basis of slope-area measurement of peak flow; minimum discharge, 0.78 ft 3 /s Aug. 22-24, 1979. Minimum since first filling of Applegate Lake, 183 ft 3 /s Aug. 9, 1983.

EXTREMES OUTSIDE PERIOD OF RECORD. Flood of Dec. 22, 1955, reached a stage of 20.3 fty from floodmark, former site and datum, discharge, 66,500 ft /s, from rating curve extended above 12,000 ft /s on basis of slope-area

measurement of peak flow.

Flood of February 1927 reached a stage of 22 ft at former site, from local resident. Floods of Dec. 22, 1964, and Jan. 15, 1974, are known to have exceeded the December 1955 flood.

No flow was observed at present site during the late summer of 1977.





1 37

14306090

120183


n

17 1717171717171717

250%

8.5 9.4101113213051

166

520%

3.3 3.84.34.96.111173294

1010%

2.0 2.42.83.24.27.6132567

205%

1.3 1.62.02.33.15.7102050

50 1002% 1%



1 37

15306090



n

19 191919191919

250%

7470 574041702960221017501540

520%

15500 1140074904940358027102310

1010%

22500 1590098306280452033502800

254%

33200 22400128007940571041303380

50 1002% 1%

MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW BASED ON PERIOD OF RECORD 1939-liBO


1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

12500 76500 102600


385

ROGUE RIVER BASIN

14370000 SLATE CREEK AT WONDER, OR

LOCATION. Lat 42°21'40", long 123°31'10", in SW 1/4 sec.10, T.37 S., R.7 W., Josephine County, Hydrologic Unit 17100309, on left bank 0.6 mi upstream from Elliot Creek and 0.7 mi east of Wonder.


PERIOD OF RECORD. July to November 1913, October 1943 to September 1957, water years 1958-60 (annual maximum). October 1943 to September 1945 monthly discharge only, published in WSP 1318.

GAGE. Crest-stage gage. Datum of gage is 1,034.85 ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 21, 1946, staff gage at several sites within 0.5 mi of described site at various datums. Nov. 21, 1946, to Sept. 30, 1957, water-stage recorder at present site and datum.

REMARKS. No regulation. Several small diversions upstream from station for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 4,020 ft 3/s Oct. 29, 1950, gage height, 9.72 ft, from rating curve extended above 2,100 ft /s on basis of slope-area measurements at gage heights 8.29 and 9.72 ft; minimum discharge, 0.2 ftVs Aug. 25, 1957.





1 37

14306090

120183


n

11 1111111111111111

011111237

250%

.9

.0

.2

.3

.5

.8

.3

.2

.0

520%

0.7 0.80.91.01.11.41.72.34.7

1010%

0.6 0.-70.80.80.91.21.42.03.9

205%

50 1002% 1%




1 37

15306090



n

12121212121212

250%

1900 1270796521364269228

520%

2730 17901140768556394336

1010%

3110 20201300907681474403

254%

_^

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1530 3780 4720 5950


386

ROGUE RIVER BASIN

14371500 GRAVE CREEK AT PEASE BRIDGE, NEAR PLACER, OR

LOCATION. Lat 42°38'30", long 123°12'40", in SE 1/4 sec.6, T.34 S., R.4 W., Jackson County, Hydrologic Unit17100310, on right bank 0.5 mi downstream from Pease Bridge, 0.5 mi upstream from Boulder Creek, 5.4 mi east of Placer, and at mile 27.1.

DRAINAGE AREA. 22.1 mi 2 at measuring site 0.5 mi upstream.

PERIOD OF RECORD. October 1940 to 1987. Prior to October 1945 monthly discharge only, published in WSP 1318.


GAGE. Water-stage recorder. Datum of gage is 2,354.2 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation! bench mark). Prior to Aug. 4, 1955, at sites 0.5 mi upstream at datum 29.9 ft higher.

REMARKS. No regulation. One small diversion upstream from station. Prior to 1945, Columbia upper ditch diverted water about 2 mi upstream from station, bypassing station. Records herein are for measuring site.

AVERAGE DISCHARGE. 42 years (water years 1946-87), 59.1 ft 3 /s, 36.32 in/yr, 42,820 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 6,240 ft 3/s Dec. 22, 1964, gage height, 11.20 ft, from rating curve extended above 1,200 ft 3 /s on basis of slope-area measurement at gage height 9.66 ft; minimum discharge, 0.12 ft 3/s July 15, 1970.





1 37

14306090

120183

n

41 4141414141414141


250%

0.7 0.70.80.81.01.21.62.46.4

520%

0.5 0.50.50.60.70.91.21.84.5

1010%

0 00000113

.4

.4

.4

.5

.5

.7

.0

.6

.8

205%

0.3 0.30.40.40.50.60.91.43.3

50

0, 0,0,0,0,0,0,1,2,

2%

.3

.3

.3

.3,4.5.8.3.8

100

0 00000,01,2,

1%

.3

.3

.3

.3

.4

.5

.7

.2

.6



1 37

15306090



n

42 424242424242

250%

1130 741481320240183155

520%

1820 1180733463329250209

1010%

2200 1430876541373284236

254%

2590 17101030621416317262

502%

2820 18801130670440336278

1001%

3010 20301210712459351291



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

1110 3730 5010 6100


387

ROGUE RIVER BASIN

14372300 ROGUE RIVER NEAR AGNESS, OR (National stream quality accounting network station)

LOCATION. Lat 42°34'50", long 124°03'30", In NE 1/4 NW 1/4 sec.6, T.35 S., R.ll W., Curry County, Hydrologic Unit 17100310, on left bank 0.8 ml upstream from Shasta Costa Creek, 1.5 ml north of Agness, 2.6 mi upstream from Illinois River, and at mile 29.7.



GAGE. Water-stage recorder and crest-stage gage. Datum of gage is 113.81 ft above National Geodetic Vertical Datum of 1929 (levels by U.S. Bureau of Public Roads).

REMARKS. Flow regulated since February 1977 by Lost Creek Lake (station 14335040), since December 1980 by Applegate Lake (station 14361900), slight regulation by Fish Lake and Emigrant Lake. Many diversions for irrigation and mining.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 290,000 ft 3/s Dec. 23, 1964, from slope-area measurement;maximum gage height, 68.03 ft Dec. 23, 1964, from floodmark (backwater from Illinois River); minimum discharge, 608 ft /a July 9, 10, 1968.





1 37

14306090

120183


n

151515151515151515

250%

1100 11101130116011901250132014402020

520%

901 919938958982

1050111012101670

1010%

811 829847863886957

101011001530

205%

742 759776791812885933

10101420

50 1002% 1%



1 37

15306090



n

16 161616161616

250%

87500 636004340028800198001590013700

520%

148000 1124007550046800302002320019300

1010%

190600 15110010160060600382002850023300

254%

245700 20690014030080300496003590028500

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

59400 106300 181700 236000 307800


388

ROGUE RIVER BASIN

14372500 EAST FORK ILLINOIS RIVER NEAR TAKILMA, OR

LOCATION.~Lat 42°00'10", long 123037'30", in SE 1/4 NE 1/4 sec.15, T.41 S., R.8 W., Josephine County, Hydrologic Unit 17100311, Siskiyou National Forest, on right bank 0.3 mi downstream from Dunn Creek (California-Oregon State line), 3.4 mi south of Takilma, and at mile 71.2.


PERIOD OF RECORD. April to September 1926, April 1927 to April 1932, October 1940 to 1987. Monthlydischarge only for some periods, published in WSP 1318. Records prior to 1942 water year not equivalent owing to large diversions.

REVISED RECORDS.--WSP 1184: 1948. WSP 1288: 195KP). WSP 1398: 1946, 1947(M), 1949. WSP 1738: Drainage area (former site) .

GAGE. Water-stage recorder. Elevation of gage is 1,780 ft, from topographic map. Prior to Oct. 31, 1946,nonrecording gage at sites 0.6 mi downstream at different datums. Oct. 31, 1946, to May 13, 1949, nonrecording gage and May 14, 1949, to Aug. 23, 1965, water-stage recorder at site 0.6 mi downstream at datum 1,746.6 ft above National Geodetic Vertical Datum of 1929.

REMARKS. No regulation. Two small diversions for irrigation upstream from station.

AVERAGE DISCHARGE. 46 years (water years 1942-87), 179 ft 3 /s, 57.47 in/yr, 129,700 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 15,700 ft 3/s Dec. 22, 1964, gage height, 14.90 ft, present site and datum, from floodmark, from rating curve extended above 4,400 ft 3 /s on basis of slope-area measurement of peak flow; minimum discharge, 4.6 ft /s Nov. 3, 1960.





1 37

14306090

120183

n

45 4545454545454545


250%

8.2 8.38.68.99.611131639

677789

520%

.9

.0

.3

.6

.2

.3111327

6 66778

1010%

.5

.5

.8

.1

.7

.7101222

6 666789

205%

.1

.2

.4

.7

.3

.3

.51119

502%

5.8 5.86.16.37.07.99.01016

100

5 5566789

1%

.6

.6

.9

.1

.8

.7

.8

.614



1 37

15306090



n

46 464646464646

250%

2960 20701350885629495422

520%

4580 313020401310902695577

1010%

5580 3750244015401050800657

254%

6760 4420287017901200907737

502%

7560 4860315019401290972785

1001%

8300 52503390208013701030825



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

4250 9490 10900 12300


45 historical -0.070

389

ROGUE RIVER BASIN

14375000 SUCKER CREEK NEAR HOLLAND, OR

LOCATION. Lat 42°09'00", long 123°27'50", in NE 1/4 sec.25, T.39 S., R.7 W., Josephine County, Hydrologic Unit 17100311, on right bank 1.3 mi downstream from Grayback Creek and 4 mi northeast of Holland.


PERIOD OF RECORD. April to August 1940, September 1941 to September 1965. Prior to October 1945 monthly discharge only, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 1,777.22 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench mark). Prior to Sept. 16, 1947, staff gage at several sites within 0.5 mi of present site at various datums. Sept. 16, 1947, to Sept. 19, 1952, staff gage at site 280 ft upstream at datum 0.62 ft higher.

REMARKS. No regulation. Grayback Canal and 3 small diversions from Grayback and Cave Creeks divert water for domestic use and irrigation upstream from station. Most of return flow from these diversions enters creek upstream from station.

AVERAGE DISCHARGE.--24 years (water years 1942-65), 212 ft 3 /s, 153,500 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 17,500 ft 3/s Dec. 22, 1964, gage height, 9.28 ft, from floodmark, from estimate of peak based on slope-area survey; minimum observed, 17 ft 3 /s Sept. 29 to Oct. 3, 1941.





1 37

14306090

120183


n

19 1919191919191919

250%

25 2626272831343969

520%

22 2223242527303350

1010%

21 2122222325283042

205%

20 2021212224272836

50 1002% 1%

_ _



1 37

15306090



n

20 202020202020

250%

2290 16501110796608512454

520%

3950 269017801190891715605

1010%

5100 3390225014601090835680

254t

6560 4240286018101350971754

502%

7620 48603320207015501060797

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1610 3220 6160 8500 11800 14600


390

ROGUE RIVER BASIN

14375100 SUCKER CREEK BELOW LITTLE GRAYBACK CREEK, NEAR HOLLAND, OR

LOCATION. Lat 42°09'35", long 123°28'40", in NE 1/4 SW 1/4 sec.24, T.39 S., R.7 W., Josephine County, Hydrologic Unit 17100311, on right bank 500 ft downstream from Little Grayback Creek, 2.0 mi downstream from Grayback Creek, 3.7 mi northeast of Holland, and at mile 9.3.



REVISED RECORDS. WDR OR-86-2: 1985.

GAGE. Water-stage recorder. Datum of gage is 1,713.92 ft above National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench mark).

REMARKS. Grayback Canal and 3 small diversions from Grayback and Cave Creeks divert water for domestic use and irrigation upstream from station. Return flow from these diversions enters creek upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 8,550 ft 3/s Jan. 15, 1974, gage height, 8.20 ft; minimum discharge, 12 ft 3/s Oct. 20, 1974.

EXTREMES OUTSIDE PERIOD OF RECORD. Maximum stage since at least 1940, 10.8 ft on Dec. 22, 1964, from floodmark, discharge, 19,300 ft /s, from estimate based on slope-area measurement of peak flow at site 0.7 ml upstream.





1 37

14306090

120183


n

21 2121212121212121

250%

242425262731353965

520%

18 1919202225293348

1010%

16 1616172023263042

205%

14 1414151821242838

502%

12 1213131619222734

1001%




1 37

15306090



n

22 222222222222

250%

2640 19901380964716577503

520%

4360 3330229015301080841734

1010%

5320 4040279018301270976858

254%

6310 47503280213014601110984

502%

6900 515035702310157011801060

1001%

_



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

2130 6120 7920 12200

Systematic n - 22 historical n - 48 Weighted skew = -0.194

391

ROGUE RIVER BASIN

14375500 WEST FORK ILLINOIS RIVER BELOW ROCK CREEK, NEAR O'BRIEN, OR

LOCATION.~Lat 42°02'20", long 123°44'50", in SW 1/4 SE 1/4 sec.34, T.40 S., R.9 W., Josephine County, Hydrologic Unit 17100311, Siskiyou National Forest, on left bank 0.2 mi downstream from Rock Creek, 3.0 mi southwest of O'Brien, and at mile 12.8.




REMARKS. Three'small diversions from Elk Creek for irrigation upstream from station.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 16,100 ft 3/s Dec. 22, 1964, gage height, 16.05 ft, from rating curve extended above 6,200 ft /s, on basis of slope-area measurement at gage height 14.79 ft; minimum discharge, 1.5 ftVs Sept. 2-4, 1974.





1 37

14306090

120183

n

30 3030303030303030


4 4445679

250%

.3

.5

.6

.9

.3

.2

.5

.924

3 3334457

520%

.2

.3

.5

.7

.1

.7

.8

.616

1010%

2.7 2.83.03.23.64.05.06.813

2 2223346

205%

.3

.4

.6

.8

.2

.6

.5

.111

50

1. 2,222,3,4,5,8

2%

.9

.0

.2

.3

.8

.1

.0

.5

.7

100

1. 1.1.2223,5,7,

1%

.7

.7

.9

.1

.5,8.7.2.6



1 37

15306090



n

31 313131313131

250%

3520 260017301170874692581

520%

5140 3690245016301180941777

1010%

6270 44002900191013501070874

254%

7780 52903450223015401200966

502%

8940 595038402450166012701020

1001%

10100 660042102650177013401060



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

3800 5200 7350 8930 12900 14800


392

ROGUE RIVER BASIN

14377000 ILLINOIS RIVER AT KERBY, OR

LOCATION. Lat 42°11'50", long 123°39'30", in NW 1/4 sec.9, T.39 S., R.8 W., Josephine County, Hydrologic Unit 17100311, on upstream side of Finch Bridge and 0.5 mi west of Kerby.


PERIOD OF RECORD. March 1926 to September 1961. Monthly discharge only March 1926, published in WSP 1318.

GAGE. Wire-weight gage read once or twice daily. Datum of gage is 1,232.00 ft above National Geodetic Vertical Datum of 1929. Prior to May 9, 1928, staff gage at site 0.5 mi upstream at different datums. May 9, 1928, to Nov. 2, 1934, staff gage at present site at different datums. Nov. 3, 1934, to Sept. 30, 1950, water-stage recorder at site 1 mi downstream at datum 16.76 ft lower. Oct. 1, 1950 to Dec. 28, 1958, staff gage at present site at datum 2.00 ft higher.

REMARKS. No regulation. Diversions for irrigation of 5,500 acres upstream from station. Some diversions for mining during winter months.

AVERAGE DISCHARGE. 35 years (water years 1927-61), 1,209 ft 3 /s, 875,300 acre-ft/yr.

EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 56,800 ft 3/s Dec. 22, 1955, gage height, 16.4 ft, present datum, from floodmark, from rating curve extended above 9,600 ft 3/s on basis of slope-area measurement at gage height 15.7 ft, present datum; minimum observed, 9.6 ft 3/s Aug. 16, 1959.





1 37

14306090

120183


n

34 3434343434343434

250%

27 28293032364258

190

520%

19 20202223263141

111

1010%

15 1617182022263481

205%

13 1314161720233061

502%

10 1112131517212544

1001%

9.0 9.310121316192335



1 37

15306090



n

35 353535353535

250%

18000 1290088606050423033802910

520%

27800 19600131008610612047704060

1010%

34200 237001550010100737056204780

254%

42300 286001830011700891066205640

502%

48100 3180020100128001000073106240

1001%

53800 3490021700138001110079506820



1.25 80%

2 50%

5 20%

10 10%

25 4%

50 2%

1001%

64200


393

ROGUE RIVER BASIN

14377100 ILLINOIS RIVER NEAR KERBY, OR

LOCATION. Lat 42°13'55", long 123°39'45", in SE 1/4 SE 1/4 sec.29, T.38 S., R.8 W., Josephine County, Hydrologic Unit 17100311 , Siskiyou National Forest, on right bank 1.6 mi upstream from Josephine Creek, 2.5 mi northwest of Kerby, and at mile 50.3.



GAGE. Water-stage recorder. Datum of gage is 1,198.8 ft above National Geodetic Vertical Datum of 1929. Prior to Jan. 28, 1965, water-stage recorder, and Jan. 28 to Sept. 30, 1965, nonrecording gage 700 ft downstream at datum 2.99 ft lower.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 92,200 ft 3/s Dec. 22, 1964, gage height, 45.28 ft, from floodmark, site and datum then in use, from rating curve extended above 30,000 ft 3/s on basis of slope-area measurement of peak flow; minimum discharge, 14 Ct 3 /s Aug. 11, 13, 14, 1977, Sept. 10, 11, 1986.





1 37

14306090

120183


n

25 2525252525252525

250%

30 31323436415071

196

520%

22 23242627313855

142

1010%

19 20212224273349

122

205%

17 17181921243045

109

502%

14 1516171922274196

1001%

13 1314151820263889



1 37

15306090



n

26 262626262626

250%

19500 1400096406640504040203410

520%

29100 21100145009640680054004490

1010%

34900 256001760011400763060304960

254%

41300 311002120013400841065805360

502%

45600 350002370014700885068705560

1001%

49500 386002600015800918070805700



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

17600 24900 36600 67600


394

ROGUE RIVER BASIN

14377500 DEER CREEK NEAR DRYDEN, OR

LOCATION. Lat 42015'50", long 123°27'00", near center of sec.18, T.38 S., R.6 W., Josephine County, Hydrologic Unit 17100311, on left bank 500 ft downstream from confluence of North and South Forks and 5 mi east of Dryden.


PERIOD OF RECORD. December 1941 to September 1956. Monthly discharge only for December 1941 to September 1945, published in WSP 1318.

GAGE. Water-stage recorder. Datum of gage is 1,650.10 ft above National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation). Prior to Sept. 12, 1946, staff gage at same site at datum 1.26 ft higher.

REMARKS. No regulation. Small diversions upstream from station for irrigation.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, about 5,000 ft 3 /s Jan. 18, 1953, gage height, 7.61 ft, backwater from logs; maximum gage height, 7.92 ft Oct. 29, 1950; minimum discharge, 0.9 ftVs Sept. 20-24, 1951, Sept. 6-10, 1955.





1 37

14306090

120183

IN FT3/SINTERVAL,EXCEEDANCE

n

10 1010101010101010

1 11112239

250%

.4

.4

.5

.6

.9

.3

.8

.9

.4

1 11111225

520%

.1

.1

.1

.2

.4

.7

.0

.7

.9

, FORIN YEARS,


PROBABILITY, IN

0 01111124

1010%

.9

.9

.0

.1

.2

.4

.7

.3

.8

205%

PERCENT

502%

_

1001%




1 37

15306090



n

11 111111111111

250%

1480 1030668428287221188

520%

2460 16801050673456333275

10 2510% 4%

3120 20901270821575406328

50 1002% 1%




1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

1230 2060 3370 4320 5590

Systematic n = 15 historical n = Generalized 17b skew = -0.154

395

ROGUE RIVER BASIN

14378000 ILLINOIS RIVER NEAR SELMA, OR

LOCATION.~Lat 42°22'45", long 123°48'40", in SW 1/4 sec.6, T.37 S., R.9 W., Josephine County, Hydrologic Unit 17100311, on right bank 0.1 mi upstream from Panther Creek, 0.2 mi downstream from Briggs Creek, 12 mi northwest of Selma, and at mile 32.3.

DRAINAGE AREA. 665 mi 2 , includes that of Panther Creek.

PERIOD OF RECORD. October 1956 to January 1968.

GAGE. Water-stage recorder. Datum of gage is 829.18 ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 13, 1967, water-stage recorder at same site and datum.

REMARKS. No regulation. Many diversions upstream from station for irrigation, mining, and logpond operation. Records include flow of Panther Creek.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 160,000 ft 3/s Dec.22, 1964, gage height, 34.0 ft, from floodmark, fromrating curve extended above 33,000 ft 3 /s on basis of slope-area measurement at gage height 25.64 ft, and comparison of peak flows at station near Kerby and Rogue River near Agness; minimum, 61 ft 3 /s Aug. 28, Sept. 2, 1959.





1 37

14306090

120183



n

10 1010101010101010

250%

73 7576778396

108132358

520%

67 686870728294

110233

1010%

64 656566677588

102183

20 505% 2%

--

1001%

__ --



1 37

15306090



n

11 111111111111

250%

36600 266001880012500881067205690

520%

54500 3970027900179001250090207560

1010%

73200 52400356002230015500109009030

25 50 1004% 2% 1%

:: :: :: -- --MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

38800 57000 97400


396

ROGUE RIVER BASIN

14378200 ILLINOIS RIVER NEAR AGNESS, OR

LOCATION.~Lat 42°31'15" r long 124°02'35", in SW 1/4 NW 1/4 sec.29, T.35 S., R.ll W., Curry County, Hydrologic Unit 17100311, on right bank 0.6 mi downstream from Lawson Creek, 1.4 mi upstream from Fox Creek, 2.8 mi southeast of Agness, and at mile 3.0.

DRAINAGE AREA.--988 mi , at cable section 2.1 mi downstream where all measurements are made.



REMARKS. No regulation. Many diversions upstream from station for irrigation, mining, and logpond operation. Records include flow of Fox Creek. All records given herein are for measuring site.


EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 225,000 ftVs Dec.22, 1964, estimated on basis of runoff ratio with station near Selma; maximum gage height, 56.91 ft Dec. 22, 1964, from floodmark (backwater from Rogue River); minimum discharge, 125 ft /s Sept. 14-16, 1977.





1 37

14306090

120183


n

20 2020202020202020

250%

161 162165169178200229287611

520%

138 139140144153168196240451

1010%

127 128129133142154185222388

205%

120 120121124135145178211344

502%

112 112112115127136172200302

1001%

__



1 37

15306090



n

21 212121212121

250%

62100 467003190020700157001280010900

520%

95100 720004950031000217001740014500

1010%

113800 873006040037200246001940016000

254%

133800 1044007300044300273002110017200

502%

146300 1158008170049100289002190017700

1001%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

1001%

79700 114100 136000 162500 181400


397

CHETCO RIVER BASIN

14400000 CHETCO RIVER NEAR BROOKINGS, OR

LOCATION. Lat 42°07'25", long 124°11'10", in SE 1/4 sec.12, T.40 S., R.13 W., Curry County, Hydrologic Unit 17100312, on right bank 16 ft upstream from bridge, 0.5 mi upstream from Elk Creek, 6.8 mi northeast of Brookings, and at mile 10.7.



GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 50 ft, from topographic map.



EXTREMES FOR PERIOD OF RECORD. Maximum discharge, 65,800 ft 3 /s Jan. 16, 1971, gage height, 27.45 ft; minimum discharge, 45 ft 3 /s Oct. 21-23, 1974.

EXTREMES OUTSIDE PERIOD OF bridge pier, discharge

F RECORD. Flood of Dec. 22, 1964, reached a stage of 32.25 ft, from high-water , 85,400 ft /s, from rating curve extended above 45,000 ft /s.

mark on





1 37

14306090

120183


n

17 1717171717171717

250%

67 6869727792

114157390

520%

55 565658637085

111252

1010%

51 51525357637596

193

205%

48 48495053586886

151

50 1002% 1%




1 37

15306090



n

18 181818181818

250%

30100 227001660011600916075706220

520%

39700 3060022300156001170096307860

1010%

44200 34900252001770012700104008430

254%

48600 39400282002000013600109008820

50 1002% 1%



1.25 80%

250%

5 20%

10 10%

25 4%

50 2%

100 1%

25500 37700 54100 77000

Systematic n = 18 historical n = 24 Generalized 17b skew - -0.300

398

INDEX

Station Number

1430650014169300103880011150300014366000143620001436300014369500143575001424870013330500140780001433750014306900140610001402500014138800141622001416110014162000141790001039700014054500141395001413885013226500132270001327500013274200132730001420150014032000141735001417200014319900143207001037000014042000140425001332000014139700144000001038400014209500142080001421000014211000141525001415700014153500

Station Name Page

Alsea River near Tidewater------------------------------- 301Amazon Creek at Eugene----------------------------------- 215Ana River near Summer LakeT------------------------------ 13Annie Spring near Crater Lake---------------------------- 27Applegate River near Applegate--------------------------- 383Applegate River near Copper------------------------------ 381Applegate River near Ruch-------------------------------- 382Applegate River near Wilderville------------------------- 385Bear Creek at Medford------------------------------------ 375Bear Creek near Svensen---------------------------------- 287Bear Creek near Wallowa---------------------------------- 69Beaver Creek near Paulina-------------------------------- 131Big Butte Creek near McLeod------------------------------ 358Big Creek near Roosevelt Beach--------------------------- 306Big Marsh Creek at Hoey Ranch, near Crescent------------- 120Birch Creek at Rieth------------------------------------- 84Blazed Alder Creek near Rhododendron--------------------- 159Blue River at Blue River--------------------------------- 206Blue River below Tidbits Creek, near Blue River---------- 203Blue River near Blue River------------------------------- 205Breitenbush River above French Creek, near Detroit------- 225Bridge Creek near Frenchglen----------------------------- 17Brown Creek near La Pine--------------------------------- 113Bull Run River below Lake Ben Morrow--------------------- 163Bull Run River near Multnomah Falls---------------------- 160Bully Creek at Warmsprings, near Vale-------------------- 42Bully Creek near Vale------------------------------------ 43Burnt River at Huntington-------------------------------- 49Burnt River near Bridgeport------------------------------ 48Burnt River near Hereford-------------------------------- 47Butte Creek at Monitor----------------------------------- 262Butter Creek near Pine city------------------------------ 87Calapooia River at Albany-------------------------------- 221Calapooia River at Holley-------------------------------- 220Calapooya Creek at Nonpareil----------------------------- 335Calapooya Creek near Oakland----------------------------- 336Camas Creek near Lakeview-------------------------------- 8Camas Creek near Lehman---------------------------------- 98Camas Creek near Ukiah----------------------------------- 99Catherine Creek near Union------------------------------- 62Cedar Creek near Brightwood------------------------------ 164Chetco River near Brookings------------------------------ 398Chewaucan River near Paisley----------------------------- 12Clackamas River above Three Lynx Creek------------------- 281Clackamas River at Big Bottom---------------------------- 276Clackamas River at Estacada------------------------------ 282Clackamas River near Clackamas--------------------------- 284Coast Fork Willamette River at London-------------------- 185Coast Fork Willamette River at Saginaw------------------- 192Coast Fork Willamette River below Cottage Grove Dam------ 186

399

Station Number

INDEX--Continued

Station Name Page

14157000 Coast Fork Willamette River near Goshen------------------ 19311340500 Cottonwood Creek near Lakeview--------------------------- 2114309000 Cow Creek near Azalea------------------------------------ 31614310000 Cow Creek near Riddle------------------------------------ 31814167000 Coyote Creek near Crow----------------------------------- 21314060000 Crescent Creek at Crescent Lake, near Crescent----------- 11914087400 Crooked River below Opal Springs, near Culver------------ 13614087500 Crooked River near Culver-------------------------------- 13714079500 Crooked River near Post---------------------------------- 13314080500 Crooked River near Prineville---------------------------- 13414051000 Cultus Creek above Crane Prairie Reservoir,

near La Pine------------------------------------------- 10814050500 Cultus River above Cultus Creek, near La Pine------------ 10714308700 Days Creek at Days Creek--------------------------------- 31510371500 Deep Creek above Adel------------------------------------ 1014052000 Deer Creek above Crane Prairie Reservoir,

near La Pine------------------------------------------- 11014377500 Deer Creek near Dryden---------------------------------- 39514312200 Deer Creek near Roseburg--------------------------------- 32414306810 Deer Creek near Salado----------------------------------- 30514064500 Deschutes River at Benham Falls, near Bend--------------- 12214103000 Deschutes River at Moody, near Biggs--------------------- 14714057000 Deschutes River at Pringle Falls, near La Pine----------- 11614070500 Deschutes River below Bend------------------------------- 12614054000 Deschutes River below Crane Prairie Reservoir,

near La Pine------------------------------------------- 11214066000 Deschutes River below Lava Island, near Bend------------- 12414050000 Deschutes River below Snow Creek, near La Pine----------- 10614056500 Deschutes River below Wickiup Reservoir, near La Pine---- 11514076500 Deschutes River near Culver------------------------------ 12914092500 Deschutes River near Madras------------------------------ 14014113400 Dog River near Parkdale---------------------------------- 15010396000 Donner und Blitzen River near Frenchglen----------------- 1610371000 Drake Creek near Adel------------------------------------ 911339500 Drews Creek near Lakeview-------------------------------- 2014306600 Drift Creek near Salado---------------------------------- 30213288200 Eagle Creek above Skull Creek, near New Bridge----------- 5513353500 East Fork Ashland Creek near Ashland--------------------- 37414205500 East Fork Dairy Creek at Mountaindale-------------------- 27114372500 East Fork Illinois River near Takilma-------------------- 38914325001 East Fork Wallowa River near Joseph--------------------- 6514337800 Elk Creek near Cascade Gorge----------------------------- 36114322000 Elk Creek near Drain------------------------------------- 33814308500 Elk Creek near Drew-------------------------------------- 31314338000 Elk Creek near Trail------------------------------------- 36314361600 Elliott Creek near Copper-------------------------------- 38014350000 Emigrant Creek near Ashland------------------------------ 37114151000 Fall Creek below Winberry Creek, near Fall Creek--------- 18114150300 Fall Creek near Lowell----------------------------------- 17914057500 Fall River near La Pine---------------------------------- 11814138870 Fir Creek near Brightwood-------------------------------- 161

400

Station Number

INDEX--Continued

Station Name Page

14306400 Five Rivers near Fisher---------------------------------- 30014306800 Flynn Creek near Salado---------------------------------- 30414044500 Fox Creek at gorge, near Fox----------------------------- 10114204500 Gales Creek near Forest Grove---------------------------- 27014204000 Gales Creek near Gales Creek----------------------------- 26914163000 Gate Creek at Vida--------------------------------------- 20813318800 Grande Ronde River at Hilgard---------------------------- 6013319000 Grande Ronde River at La Grande-------------------------- 6113332500 Grande Ronde River at Rondowa---------------------------- 7113333300 Grande Ronde River at Troy------------------------------- 7213323500 Grande Ronde River near Elgin---------------------------- 6313318500 Grande Ronde River near Hilgard-------------------------- 5914371500 Grave Creek at Pease Bridge, near placer----------------- 38714195000 Haskins Creek near McMinnville--------------------------- 25414144900 Hills Creek above Hills Creek Lake, near Oakridge-------- 16910378500 Honey Creek near Plush----------------------------------- 1114120000 Hood River at Tucker Bridge, near Hood River------------- 15213329500 Hurricane Creek near Joseph------------------------------ 6714377000 Illinois River at Kerby--------------------------------- 39314378200 Illinois River near Agness------------------------------- 39714378000 Illinois River near Selma-------------------------------- 39614377100 Illinois River near Kerby-------------------------------- 39414331000 Imnaha Creek near Prospect------------------------------- 35213292000 Imnaha River at Imnaha----------------------------------- 5813323600 Indian Creek near Imbler--------------------------------- 6414307700 Jackson Creek near Tiller-------------------------------- 31114048000 John Day River at McDonald Ferry------------------------- 10514040500 John Day River at Picture Gorge, near Dayville----------- 9614038500 John Day River at Prairie city--------------------------- 9314046500 John Day River at Service Creek-------------------------- 10314038530 John Day River near John Day----------------------------- 9514211500 Johnson Creek at Sycamore-------------------------------- 28511514500 Keene Creek near Ashland---- ---------------------------- 3111509500 Klamath River at Keno------------------------------------ 2911510700 Klamath River below John C. Boyle Powerplant,

near Keno---------------------------------------------- 3014307500 Lake Creek at Triangle Lake------------------------------ 30714387580 Lake Creek near Deadwood--------------------------------- 30814312500 Lake Creek near Diamond Lake----------------------------- 32514088000 Lake Creek near Sisters---------------------------------- 13814347000 Little Butte Creek above Eagle Point--------------------- 37014063000 Little Deschutes River near La Pine---------------------- 12114151500 Little Fall Creek near Fall Creek------------------------ 18314182500 Little North Santiam River near Mehama------------------- 22714318000 Little River at Peel------------------------------------- 33i14141500 Little Sandy River near Bull Run------------------------- 16614131000 Little Zigzag River at Twin Bridges, near Rhododendron--- 15314170000 Long Tom River at Monroe--------------------------------- 21614169001 Long Tom River near Alvador------------------------------ 21414166500 Long Tom River near Noti--------------------------------- 212

401

Station Number

INDEX--Continued

Station Name Page

14311500 Lookingglass Creek at Brockway--------------------------- 32214161500 Lookout Creek near Blue River---------------------------- 20413330000 Lostine River near Lostine------------------------------- 6814190000 Luckiamute River at Pedee-------------------------------- 24414189500 Luckiamute River near Hoskins---------------------------- 24314190500 Luckiamute River near Suver------------------------------ 24513220000 Malheur River at Little Valley, near Hope---------------- 4013228000 Malheur River at Vale------------------------------------ 4413215000 Malheur River below Warmsprings Reservoir, near

Riverside---------------------------------------------- 3713214000 Malheur River near Drewsey------------------------------- 3613220500 Malheur River near Hope---------------------------------- 4114171000 Marys River near Philomath------------------------------- 21914206000 McKay Creek near North Plains---------------------------- 27214023500 McKay Creek near Pendleton------------------------------- 8314022500 McKay Creek near Pilot Rock------------------------------ 8214159000 McKenzie River at McKenzie Bridge------------------------ 19814158500 McKenzie River at outlet of Clear Lake------------------- 19514158850 McKenzie River below Trail Bridge Dam, near Belknap

Springs ------------------------------------------------ 19714165500 McKenzie River near Coburg------------------------------- 21014165000 McKenzie River near Vida--------------------------------- 20714020300 Meacham Creek at Gibbon---------------------------------- 7814091500 Metolius River near Grandview---------------------------- 13914326500 Middle Fork Coquille River near Myrtle Point------------- 34514044000 Middle Fork John Day River at Ritter--------------------- 10014333000 Middle Fork Rogue River near Prospect-------------------- 35314145500 Middle Fork Willamette River above Salt Creek, near

Oakridge----------------------------------------------- 17014152000 Middle Fork Willamette River at Jasper------------------- 18414148000 Middle Fork Willamette River below North Fork,

near Oakridge------------------------------------------ 17614150000 Middle Fork Willamette River near Dexter----------------- 17814144800 Middle Fork Willamette River near Oakridge--------------- 16814186500 Middle Santiam River at mouth, near Foster--------------- 23414185800 Middle Santiam River near Cascadia----------------------- 23114186000 Middle Santiam River near Foster------------------------- 23314306036 Mill Creek near Toledo----------------------------------- 29814193300 Mill Creek near Willamina-------------------------------- 25113331500 Minam River at Minam------------------------------------- 7014165000 Mohawk River near Springfield---------------------------- 20914200000 Molalla River near Canby--------------------------------- 25914198500 Mollala River above Pine Creek, near Wilhoit------------- 25814156500 Mosby Creek at mouth, near Cottage Grove----------------- 19114156000 Mosby Creek near Cottage Grove--------------------------- 19014113200 Mosier Creek near Mosier--------------------------------- 14914306700 Needle Branch near Salado-------------------------------- 30314301000 Nehalem River near Foss---------------------------------- 29014303600 Nestucca River near Beaver------------------------------- 29514302900 Nestucca River near Fairdale----------------------------- 293

402

Station Number

INDEX--Continued

Station Name Page

14303000 Nestucca River near McMinnville-------------------------- 29414306100 North Fork Alsea River at Alsea-------------------------- 29914077500 North Fork Beaver Creek near Paulina--------------------- 13014138900 North Fork Bull Run River near Multnomah Falls----------- 16213269300 North Fork Burnt River near Whitney---------------------- 4514326800 North Fork Coquille River near Fairview------------------ 34614327000 North Fork Coquille River near Myrtle Point-------------- 34714078500 North Fork Crooked River above Deep Creek---------------- 13214046000 North Fork John Day River at Monument-------------------- 10214041500 North Fork John Day River near Dale---------------------- 9714342500 North Fork Little Butte Creek at Fish Lake, near

Lakecreek---------------------------------------------- 36814343000 North Fork Little Butte Creek near Lakecreek------------- 36913216500 North Fork Malheur River above Beulah Reservoir near

Beulah------------------------------------------------- 3813217500 North Fork Malheur River at Beulah----------------------- 3914022200 North Fork McKay Creek near Pilot Rock------------------- 8114307645 North Fork Siuslaw River near Minerva-------------------- 31014011000 North Fork Walla Walla River near Milton----------------- 7614010800 North Fork Walla Walla River near Milton Freewater------- 7514147500 North Fork of Middle Fork Willamette River near

Oakridge----------------------------------------------- 17514311000 North Myrtle Creek near Myrtle Creek--------------------- 32014183000 North Santiam River at Mehama---------------------------- 22814181500 North Santiam River at Niagara--------------------------- 22614178000 North Santiam River below Boulder Creek, near Detroit---- 22414316500 North Umpqua River above Copeland Creek, near Toketee

Falls-------------------------------------------------- 32714317500 North Umpqua River above Rock Creek, near Glide---------- 32914315500 North Umpqua River at Toketee Falls---------------------- 32614319500 North Umpqua River at Winchester------------------------- 33414318500 North Umpqua River near Glide---------------------------- 33214197000 North Yamhill River at Pike------------------------------ 25614194300 North Yamhill River near Fairdale------------------------ 25314196500 North Yamhill River near Pike---------------------------- 25514209000 Oak Grove Fork above powerplant intake------------------- 27914208500 Oak Grove Fork at Timothy Meadows------------------------ 27714208700 Oak Grove Fork near Government Camp ---------------------- 27814055500 Odell Creek near Crescent-------------------------------- 11414311200 Olalla Creek near Tenmile-------------------------------- 32113182000 Owyhee River above Lake Owyhee--------------------------- 3313184000 Owyhee River at Owyhee----------------------------------- 3513183000 Owyhee River below Owyhee Dam---------------------------- 3413181000 Owyhee River near Rome----------------------------------- 3213290190 Pine Creek near Oxbow------------------------------------ 5713277000 Powder River at Baker------------------------------------ 5213275500 Powder River near Baker---------------------------------- 5113286700 Powder River near Richland------------------------------- 5313289500 Powder River near Robinette------------------------------ 5613275300 Powder River near Sumpter-------------------------------- 50

403

Station Number

INDEX--Continued

Station Name Page

14368500 Powell Creek near Williams------------------------------- 38414202000 Pudding River at Aurora---------------------------------- 26314201000 Pudding River near Mount Angel--------------------------- 26114185900 Quartzville Creek near Cascadia-------------------------- 23214052500 Quinn River near La Pine--------------------------------- 11014333500 Red Blanket creek near Prospect-------------------------- 35414034800 Rhea Creek near Heppner---------------------------------- 9014190700 Rickreall Creek near Dallas------------------------------ 24614047390 Rock Creek above Whyte Park, near Condon----------------- 10414317600 Rock Creek near Glide------------------------------------ 33014170500 Rock Creek near philomath-------------------------------- 21814327500 Rogue River above Bybee Creek, near Union Creek---------- 34814328000 Rogue River above Prospect------------------------------- 34914339000 Rogue River at Dodge Bridge, near Eagle Point------------ 36414361500 Rogue River at Grants Pass------------------------------- 37814359000 Rogue River at Raygold, near Central Point--------------- 37614330000 Rogue River below Prospect------------------------------- 35014335000 Rogue River below South Fork Rogue River, near Prospect-- 35614372300 Rogue River near Agness---------------------------------- 38814337600 Rogue River near McLeod---------------------------------- 35914154500 Row River above Pitcher Creek, near Dorena--------------- 18714155500 Row River near Cottage Grove----------------------------- 18814146500 Salmon Creek near Oakridge------------------------------- 17314135500 Salmon River above Boulder Creek, near Brightwood-------- 15714135000 Salmon River at Welches---------------------------------- 15614134500 Salmon River below Linney Creek-------------------------- 15514134000 Salmon River near Government Camp------------------------ 15414146000 Salt Creek near Oakridge--------------------------------- 17214142500 Sandy River below Bull Run River, near Bull Run---------- 16714137000 Sandy River near Marmot---------------------------------- 15814189000 Santiam River at Jefferson------------------------------- 24114202980 Scoggins Creek below Henry Hagg Lake, near Gaston-------- 26514203000 Scoggins Creek near Gaston------------------------------- 26614093000 Shitike Creek at Warmsprings----------------------------- 14314092885 Shitike Creek below Wolford Canyon, near Warmsprings----- 14214305500 Siletz River at siletz----------------------------------- 29614200030 Silver Creek at silverton-------------------------------- 26010403000 Silver Creek near Riley---------------------------------- 1810390001 Silver Creek near Silver Lake---------------------------- 1410393500 Silvies River near Burns--------------------------------- 1514307620 Siuslaw River near Mapleton------------------------------ 30914370000 Slate Creek near Wonder---------------------------------- 38614158790 Smith River above Smith River Reservoir, near Belknap

Springs------------------------------------------------ 19614335500 South Fork Big Butte Creek near Butte Falls-------------- 35714139800 South Fork Bull Run River near Bull Run------------------ 16513270800 South Fork Burnt River above Barney Creek, near Unity---- 4614324600 South Fork Coquille River above Panther Creek, near

Illahe------------------------------------------------- 341

404

Station Number

INDEX--Continued

Station Name Page

14325000 South Fork Coquille River at Powers---------------------- 34414324700 South Fork Coquille River near Ulahe-------------------- 34214324900 South Fork Coquille River near Powers-------------------- 34314339500 South Fork Little Butte Creek at Big Elk ranger

station------------------------------------------------ 36514341500 South Fork Little Butte Creek near Lakecreek------------- 36614159200 South Fork McKenzie River above Cougar Lake, near

Rainbow------------------------------------------------ 20014159500 South Fork McKenzie River near Rainbow------------------- 20114330500 South Fork Rogue River above Imnaha Creek, near

Prospect-- --------------------------------------------- 35114334700 South Fork Rogue River, south of Prospect---------------- 35514010500 South Fork Walla Walla River below Pacific Power and

Light power plant, near Milton------------------------- 7414010000 South Fork Walla Walla River near Milton-Freewater------- 7314310700 South Myrtle Creek near Myrtle Creek--------------------- 31914187500 South Santiam River at Waterloo-------------------------- 23814185000 South Santiam River below Cascadia----------------------- 23014187200 South Santiam River near Foster-------------------------- 23714308600 South Umpqua River at Days Creek------------------------- 31414308000 South Umpqua River at Tiller----------------------------- 31214312000 South Umpqua River near Brockway------------------------- 32314194000 South Yamhill River near Whiteson------------------------ 25214192500 South Yamhill River near Willamina----------------------- 24911497500 Sprague River near Beatty-------------------------------- 2411501000 Sprague River near Chiloquin----------------------------- 2514075000 Squaw Creek near Sisters--------------------------------- 12814037500 Stawberry Creek above Slide Creek, near Prairie City----- 9214316700 Steamboat Creek near Gilde------------------------------- 32814375100 Sucker Creek below Little Grayback Creek, near Holland--- 39114375000 Sucker Creek near Holland-------------------------------- 39014319200 Sutherlin Creek at Sutherlin----------------------------- 33314323200 Tenmile Creek near Lakeside------------------------------ 33914188800 Thomas Creek near Scio----------------------------------- 24014302500 Trask river near Tillamook------------------------------- 29210406500 Trout Creek near Denio, NV------------------------------- 1914206500 Tualatin River at Farmington----------------------------- 27314207500 Tualatin River at West Linn------------------------------ 27414203500 Tualatin River near Dilley------------------------------- 26714202500 Tualatin River near Gaston------------------------------- 26414073001 Tumalo Creek near Bend----------------------------------- 12710366000 Twentymile Creek near Adel------------------------------- 714022000 Umatilla River above McKay Creek, near Pendleton--------- 8014020000 Umatilla River above Meacham Creek, near Gibbon---------- 7714021000 Umatilla River at Pendleton------------------------------ 7914026000 Umatilla River at Yoakum--------------------------------- 8514033500 Umatilla River near Umatilla----------------------------- 8814321000 Umpqua River near Elkton--------------------------------- 33714147000 Waldo Lake Outlet near Oakridge-------------------------- 17413327500 Wallowa River at Joseph---------------------------------- 66

* U.S GPO. 1993 793-348405

Station Number

INDEX--Continued

Station Name Page

14097100 Warm Springs River near Kahneeta Hot Springs ------------- 14414337870 West Branch Elk Creek near Trail------------------------- 36214353000 West Fork Ashland Creek near Ashland--------------------- 37314309500 West Fork Cow Creek near Glendale------------------------ 31714118500 West Fork Hood River near Dee---------------------------- 15114375500 West Fork Illinois River below Rock Creek, near

0'Brien------------------------------------------------ 39214324500 West Fork Millicoma River near Allegany------------------ 34014101500 White River below Tygh Valley---------------------------- 14614097200 White River near Government Camp------------------------- 14514187100 Wiley Creek at Foster------------------------------------ 23614187000 Wiley Creek near Foster---------------------------------- 23514174000 Willamette River at Albany------------------------------- 22214166000 Willamette River at Harrisburg--------------------------- 21114211700 Willamette River at Portland----------------------------- 28614191000 Willamette River at Salem-------------------------------- 24714158000 Willamette River at Springfield-------------------------- 19414198000 Willamette River at Wilsonville-------------------------- 25714193900 Willamina Creek near Willamina--------------------------- 25011502500 Williamson River below Spraque River, near Chiloquin-- - - - 2611493500 Williamson River near Klamath Agency--------------------- 2314034500 Willow Creek at Heppner---------------------------------- 8914036000 Willow Creek near Arlington------------------------------ 9114301500 Wilson River near Tillamook------------------------------ 29114150800 Winberry Creek near Lowell------------------------------- 18011504000 Wood River at Fort Klamath------------------------------- 2814306030 Yaquina River near Chitwood------------------------------ 29714251500 Youngs River near Astoria-------------------------------- 288

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statistical summaries of streamflow data in oregon: … · this is the second of two volumes of...

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