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FluvialGeomor holo

Stud

Products

and

Relationships

Identifyreference

reaches

and

departure

from

referenceIdentify

reference

reaches

and

departure

from

reference

StressoridentificationsupportStressoridentificationsupport aquatichabitatresponseaquatichabitatresponse

ModelsupportModelsupport morphology,hydrology,erosionratesmorphology,hydrology,erosionrates

Environmental

review

Environmental

review

support

for

work

in

streamssupport

for

work

in

streams

StreamclassificationStreamclassification usingacommonmethodologycreatesausingacommonmethodologycreatesacommonlanguageforunderstandingstreamprocessescommonlanguageforunderstandingstreamprocesses

Supportfor

TMDL

nonSupport

for

TMDL

non

point

load

allocationpoint

load

allocation

Identifysource,cause,andquantifysedimentIdentifysource,cause,andquantifysediment

protectionprotection

DaveFriedl,MinnesotaDNR

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IndicesofChannelStability BHR Incision

Vegetation Depositionalpatterns Channelsuccession Dimension Profile Aggradation

egra a on Competence Ca acit BankErosionRates

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Ver Hi h Bank Erosion Hazard Index RootDensityRootDensity

RootDepth

Bank An leBank An le

StudyBankHeightStudyBankHeight

BankfullHeightBankfullHeight

4545

an

a er a

an

an

a er a

anStratificationAdjustmentsStratificationAdjustments

SurfaceProtectionSurfaceProtection

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Setup

studybank

sitein

Sept.2009

and

validate

eros on.

Model

predicted

0.79feet

oferosion

thissite.

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Study Bank 1Study Bank 1

Validating erosion

.2011

toe pin

after 2 years of erosionafter 2 years of erosion

years =years =0.76 erosion per year0.76 erosion per year..

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Bankprofileoverlayshowing2009and2011bankprofilesandlossof9sq ft.

verageeros onra ewas . yrs,or . yr.

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Crosssectionbankpin

Studybank1location

Toepin

boulderinchannel

2011(red)poolcrosssectionwas28sq ftlargerthanin2009(green).

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Haugen 4+50 Pool Study Bank Profile 2011-2012

1118

SB 4+50 092711

ion

(ft)

1115

1116

Eleva

1113

1114

SB 4+50 071912

1110

1111Toe

Pin

Horizontal Distance (ft)

110966 67 68 69 70 71 72 73

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y=0.1159x +16.934R=0.2702 y=0.0868x +16.589

=

40700.0

Annualprecipitationregression:

30 yr average regression

y=3.4412x +40.093R=0.3618

y=1.821x +64.104R=0.7731

.

30

500.0

600.0

Annualmeanflowregression:

25

400.0

tion(in)

geFlow

(cfs)

15

300.0 Precipit

AnnualAver

10

100.0

200.0

00.0

932

934

936

938

940

942

944

946

948

950

952

954

956

958

960

962

964

966

968

970

972

974

976

978

980

982

984

986

988

990

992

994

996

998

000

002

004

006

008

010

AnnualAverageFlow(cfs) Running30YrAveFlow(cfs) AnnualPrecipitation(in)

Running30YrAvePrecip(in) Linear(AnnualAverageFlow(cfs)) Linear(Running30YrAveFlow(cfs))

Linear(AnnualPrecipitation(in)) Linear(Running30YrAvePrecip(in))

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40

45

500.0

Pommede TerreFlowsandPrecipitationat

Appleton,MN1937 2009

35

400.0

25

30

300.0

y=0.0175x 9.4935

R=0.222120

y=1.4849x 2820

R=0.783610

15

.

5

100.0

00.0

1935 1940 1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010

Flow 5YearAvg. 30yr.avg.(flow) Precipitation

5YearAvg.Precip. 30yr.avg.(precip) Linear(30yr.avg.(flow)) Linear(30yr.avg.(precip))K.Laing

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27%increaseinslope

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Thief River BANCS Erosion Model

andValidation

DavidFriedl

JasonVinje

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Reachlength23,150ft

Erosion:31.7tons/year/mile

Thief GM7 Pool 4+02 XS SB, 10/05/11 - 10/12/12GM7 Pool XS 4+02 SB 2011 GM7 Pool XS 4+02 SB 2012 Adjusted

1133

1134

1135GM7 Riffle XS Overlay, 100511 - 101212GM7 Riffle XS 16+05, 2011 Bankfull Indicators Water Surface Points GM7 Riffle XS 16+05, 2012

1150Wbkf = 67. 1 Dbkf = 5. 67 Abkf = 380. 1

Elevation

(ft)

1125

1126

1127

1128

1129

1130

1131

1132

Toe

Pin

Elevation

(ft)

1125

1130

1135

1140

1145


1123

73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93


1110

1115

1120

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170

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lower end water elev

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Closeup of Spoil Piles

355.6

355.4

3 m DEM LiDAR Valley XS

Showing Old Dredge Spoil Piles

357

lower end water elev .

355.6

355.4

355.2

355

354.8

355.2

355

354.8

356.5

356

355.5

355

50403020100

354.6

1009080706050403020100 8007006005004003002001000

Unitsof

graphs

in

meters

.

Top of r each water surface

356

355.8

units in meters

706050403020100

.

355.4

355.2

LowerMooseRiver

stableduetovegetation,

couldimprovebyopening

upspoil

piles

to

improve

accesstofloodplain.

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U erMooseRivererosion:241tons r mile

UpperMoose

River

confined

ditchwithgoodvegetation,much

higherbankerosionthanlower

largeamountsofsedimentcoming

infrom

sides.

Stream: Location:Thief Riv er, Reach - GM 12 8/9/11 GM12 - Moose River

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Date: 8/9/2011

Observers: Valley Type: Stream Type:

(2) (3) (4) (5) (6) (7) (8)

BEHI rating

(Worksheet

NBS rating

(Worksheet

Bank

erosion

Length of

bank (ft)

Study

bank

Erosion

subtotal

Erosion

Rate

(1)

Station (ft)

478Colorado Total Stream Length (ft):

DF, CH, LS, GL, N, JC

Graph Used:

GM12 Pool 1+62 XS SB, 08/09/11 - 10/11/12GM12 Pool XS 1+62 SB, 2011 GM12 Pool XS 1+62 SB - 2012

1175

Predictederosionrate(usingColoradorates)was0.253ft/yrandactualwas0.2373ft/yr

3-11)(adjective)

3-12)(adjective)

rate(Figure 3-9

or 3-10)

(ft/yr)

height (ft) [(4)(5)(6)]

(ft3/yr)

(tons/yr/ft){[(7)/27]

1.3 / (5)}

1. Moderate Very Low 0.092 55.0 5.5 27.89 0.024400-55 RBElevation

(ft)

1171

1172

1173

1174

. . . . . .

3. Low Low 0.036 23.0 5.0 4.11 0.00860

4. Very Low Low 0.000 33.0 5.5 0.00 0.00000

5. Moderate Very Low 0.092 124.0 6.0 68.60 0.02660

-

65-88 LB

55-88 RB88-150 LB

RB150-210 LB

Horizontal Distance ft

1167

1168

1169

1170

16 17 18 19 20 21 22 23

T

oe

Pin

6. o era e o era e . . . . .

7. Very Low Very Low 0.000 60.0 4.0 0.00 0.00000

8. Low Very Low 0.017 77.0 5.5 7.24 0.00450

9. Moderate Moderate 0.253 67.0 6.0 101.71 0.07310287-354 LB

150-210 RB210-287 LB

RB

oo

GM12 Riffle XS 0+91 Overlay, 08/09/11 - 10/11/12GM12 Riffle XS 0+91, 2011 Bankfull Indicators Water Surface Points GM12 Riffle XS 0+91, 2012

Wbkf = 25 Dbkf = 3. 39 Abkf = 84. 7

Estimatederosion0.253ft,actual0.237ft

10. Very Low Very Low 0.000 67.0 6.0 0.00 0.00000

11. Moderate Low 0.153 55.0 5.5 46.28 0.04050

12. Very Low Very Low 0.000 85.0 5.5 0.00 0.00000

13. Moderate Low 0.153 69.0 5.5 58.06 0.04050

287-354 RB

354-409 LB

354-478 RB

409-478 LBElevation

(ft)

1176

1178

1180

1182

1184

1186

1188

14.

15.

Total

Erosion

(ft3/yr) 453.59

TotalConvert erosion in ft

3/ r to ds

3/ r {divide Total Erosion (ft

3/ r) b

Sum erosion subtotals in Column (7) for each BEHI/NBS

combination

1160

1162

1164

1166

1168

1170

1172

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85

(yds3/yr) 16.80

Total

Erosion

(tons/yr) 21.84

Unit Erosion

Rate

(tons/yr/ft) 0.0457

Calculate erosion per unit length of channel {divide Total Erosion

(tons/yr) by total length of stream (ft) surveyed}

27}

Convert erosion in yds3/yr to tons/yr {multiply Total Erosion

(yds3/yr) by 1.3}


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GullyFormationWherePrivateDrainageEntersWaterways Solution,

eliminatesedimentatsource,maintainacquiredditchstabilitywhere

itexists

at

minimum,

restore

ditch,

or

increase

flood

plain

capacity.

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Restoration of Meanders in the

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RestorationofMeandersintheMooseRiver

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70tons/yr/mi

GM3 P ool XS 3+12 SB 08/23/11 - 10/24/12GM3 Pool XS 3+12 SB, 2011 Adjusted Elev GM3 Pool XS 3+12 SB, 2012 Adjusted

n

(ft)

1148

1150

Elevatio

1140

1142

1144

1146

48 49 50 51 52 53 54 55 56 57 58 59 60

Toe

Pin


72tons/yr/mi

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135tons/yr/mile

LowerMudRiverGM5and

GM4 fairlystabledueto

vegetationbutcarryinghigh

sandbedloadfromupper

watershed

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UpperMudRiver,lackof

b ff d h h b k

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buffersandhigherbank

erosionrates.

Gullyerosion

inpasture

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Lower CD 20 fairly

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LowerCD20 fairly

stableduetovegetation

bedloadfromupper

watershed

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UpperCD

20

air y

sta e

duetovegetationbut

contributing highersediment

frombanks. Stillma orit

UpperCD

20

air y

sta e

duetovegetationbut

contributing highersediment

frombanks. Stillma orit

Worstcaseinthisreach cominginfromsides(fields

andditches).

cominginfromsides(fields

andditches).

Reachlen th67 963ft 12.87miReachlen th67 963ft 12.87mi

210

tons/yr/mile

Solution:increasefloodplain,maintainand

reestablishstabilizing

vegetation

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BuffaloRiver

Watershed

Fish

IBI,

all

classes

Fish

IBI

0 5 10 15 20 25 30 35 40 45 50

Channelized NaturalChannel

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BuffaloRiver

Bug

IBI,

NC

versus

Channelized

(class

7)

Bug

IBI

0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0

Channelized NaturalChannel

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GM4 Pool XS 16+04 SB, 09/08/11 - 11/01/12GM4 Pool XS 16+04 SB, 2011 GM4 Pool XS 16+04 SB, 2012 Adjusted

1163

n

(ft) 1161

1162

Elevati

1159

1160

1156

1157Toe

Pin


115562 63 64 65 66 67 68 69 70 71 72 73 74 75

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GM5 Pool 5+38 XS SB, 08/10/11 - 10/11/12GM5 Pool XS 5+38 SB, 2011 GM5 Pool XS 5+38 SB, 2012

1170

n

(ft)

1167

1168

1169

Elevati

1164

1165

1166

1162

1163

Toe

Pin


11605 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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+ -GM5 Pool XS 5+38, 2011 Bankfull Indicators Water Surface Points GM5 Pool XS 5+38, 2012 _

1173

1175Wbkf = 44 Dbkf = 4. 02 Abkf = 176. 7

ion

(ft)

1169

1171

Elevat

1163

1165

1167

1159

1161

1155

1157

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90


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Thief Mud River GM5Riffle 3+46 XS Overla 081011 - 101112GM5 Riffle XS 3+46, 2011 Bankfull Indicators Water Surface Points GM5 Riffle XS 3+46, 2012

1173

1175Wbkf = 38. 1 Dbkf = 4. 09 Abkf = 155. 8

ion

(ft)

1169

1171

Elevat

1163

1165

1167

1159

1161

1157

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70


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GM6 Upper Pool 3+71 XS SB, 08/10/11 - 10/11/12GM6 Pool XS 3+71 SB 2011 GM6 Pool XS 3+71 SB 2012 Adjusted

1185

n

(ft)

1181

1182

1183

1184

Elevati

1178

1179

1180

P

in

1175

1176

1177 To


1173

1174

38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

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Thief Mud GM6 Pool XS 3+71 Overlay, 081011 - 101112, u u ,

1190Wbkf = 28. 9 Dbkf = 3. 85 Abkf = 111. 2

ion

(ft) 1185

Eleva

1180

1175

-10-20-30 0 10 20 30 40 50 60 70


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Mud GM6 Riffle XS 5+07 Overlay, 081011 - 101112, ,

1190Wbkf = 26. 1 Dbkf = 2. 76 Abkf = 72. 2

tion

(ft)

1185

Eleva

1180

1175

-10-20-30 0 10 20 30 40 50 60 70 80


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GM7 Riffle XS Overla 100511 - 101212GM7 Riffle XS 16+05, 2011 Bankfull Indicators Water Surface Points GM7 Riffle XS 16+05, 2012

1145

1150Wbkf = 67. 1 Dbkf = 5. 67 Abkf = 380. 1

ion

(ft) 1140

Elevat

1130

1120

1110

1115

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170


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Thief GM7 Pool 4+02 XS SB, 10/05/11 - 10/12/12GM7 Pool XS 4+02 SB 2011 GM7 Pool XS 4+02 SB 2012 Adjusted

1135

n

(ft)

1131

1132

1133

Elevati

1128

1129

1130

Pin

1125

1126

1127Toe


112373 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93

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RLR St. Hilaire Pool Study Bank 18+18, 081612

1078

ion

(ft)

1076

Elevat

1072

1074

1070

Pin


10685 9 13 17 21 25

Toe

River Valley High Landing

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RiverValley HighLanding

HighLandingDownstream

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Kratka Smiley

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Kratka Smiley

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Forsberg Finsbury

Sparbys Cemetary

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Hwy32 Sportsmans

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Sportsmans Huot

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Hwy11 OTDam

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Hwy11OTDam

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GM9 Pool 4+36 XS SB, 08/08/11 - 10/10/12GM9 Pool XS 4+36 SB 2011 GM9 Pool XS 4+36 SB 2012 Adjusted

1138

n

(ft)

11351136

1137

Elevati

1132

1133

1134

1129

1130

1131

Toe

Pin


112834 35 36 37 38 39 40 41 42 43 44 45 46 47

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GM9 Pool 4+36 XS 08/08/11, 10/10/12GM9 Pool XS 4+36, 2011 Bankfull Indicators Water Surface Points GM9 Pool XS 4+36, 2012

1149

1150Wbkf = 31. 6 Dbkf = 4. 23 Abkf = 133. 9

n

(ft)

1142

11431144

1145

1146

1147

Elevati

1135

1136

1137

1138

1139

1140

1128

1129

1130

1131

1132

1133

1134


1125

1126

1127

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135

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GM9 Pool 4+36 XS 08/08/11, 10/10/12GM9 Pool XS 4+36, 2011 Bankfull Indicators Water Surface Points GM9 Pool XS 4+36, 2012

1150Wbkf = 31. 6 Dbkf = 4. 23 Abkf = 133. 9

n

(ft)

1145

Elevati

1135

1140

1130


11250 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135

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1148Wbkf = 36. 6 Dbkf = 3. 67 Abkf = 134. 4

n

(ft)

1142

1144

1146

Elevati

1136

1138

1140

1132

1134


11280 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125

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GM10 Pool XS 4+25 XS, 08/09/11 - 10/11/12GM10 Pool XS 4+25 SB, 2011 GM10 Pool XS 4+25 SB, 2012

1178

n

(ft) 1176

1177

Elevati

1174

1175

1171

1172

Toe

Pin


117025 26 27 28 29 30 31 32 33 34 35

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GM10 Pool XS 4+25 Overlay, 08/09/11 - 10/11/12GM10 Pool XS 4+25, 2011 2 Bankfull Indicators Water Surface Points GM10 Pool XS 4+25, 2012

1190Wbkf = 30 Dbkf = 4. 11 Abkf = 123. 5

n

(ft)

1185

Elevati

1175

1180

1170


-10-20-30-40 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140

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GM10 Riffle XS 6+02 Overlay, 08/09/11 - 10/11/12GM10 Riffle XS 6+02, 2011 Original Bankfull Indicators Water Surface Points GM10 Riffle XS 6+02, 2012

1190Wbkf = 33. 9 Dbkf = 3. 56 Abkf = 120. 9

n

(ft) 1184

1186

Elevati

1178

1180

1172

1174


-7-14-21-28 0 7 14 21 28 35 42 49 56 63 70 77 84 91 98 105 112 119 126 133 140

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1188

1190Wbkf = 25 Dbkf = 3. 39 Abkf = 84. 7

n

(ft)

1180

1182

1184

1186

Elevati

1172

1174

1176

1178

1164

1166

1168

1170


1160

1162

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85

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GM12 Pool XS 1+62 Overlay, 08/09/11 - 10/11/12GM12 Pool XS 1+62, 2011 Bankfull Indicators Water Surface Points GM12 Pool XS 1+62, 2012

1188

1190Wbkf = 22. 9 Dbkf = 3. 61 Abkf = 82. 9

n

(ft)

1180

1182

1184

1186

Elevati

1172

1174

1176

1178

1164

1166

1168

1170


1160

1162

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90

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GM12 Pool 1+62 XS SB, 08/09/11 - 10/11/12GM12 Pool XS 1+62 SB, 2011 GM12 Pool XS 1+62 SB - 2012

1175Predictederosionrate(usingColoradorates)was

n

(ft) 1173

1174 0.253ft/yrandactualwas0.2373ft/yr

Elevati

1171

1172

1168

1169

Toe

Pin


116716 17 18 19 20 21 22 23

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GM14 Pool XS 3+64 SB Overlay, 10/04/11 - 10/12/12GM14 Pool XS 3+64 SB 2011 GM14 Pool XS 3+64 SB 2012 Adjusted

1125

on

(ft)

1122

1123

Elevati

1119

1120

1121

Pin

1116

1117

1118To


111577 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92

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GM14 Riffle XS 2011GM14 Riffle XS 21+07, 2011 Bankfull Indicators Water Surface Points GM14 Riffle XS 21+07, 2012

1130.0

Wbkf = 114. 6 Dbkf = 3. 94 Abkf = 451. 9

1125.0

1127.5

Elevation

(ft)

1122.5

1117.5

1120.0


1115.0

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145

GM3 Riffle XS 1+48, 2011 Bankfull Indicators Water Surface Points GM3 Riffle XS 1+48, 2012

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1160

Wbkf = 45. 9 Dbkf = 3. 6 Abkf = 165. 4

t)

1156

Elevation

(

1148

1144


-20 0 20 40 60 80

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10/31/2153 C4

HUC:

VIII

Bankfull VELOCITY & DISCHARGE Estimates

Stream: Buffalo River Location: Reach - Buff_Gage_GM_20120926

Date: Stream Type: Valley Type:

Observers: DF, JV

A dBankfull Riffle Cross

INPUT VARIABLES OUTPUT VARIABLES

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164.03Abkf

(ft2)2.97

dbkf(ft)

55.19Wbkf

(ft)56.95

Wp(ft)

Bankfull Riffle Cross-

Sectional AREABankfull Riffle Mean DEPTH

Bankfull Riffle WIDTHWetted PERMIMETER

~ (2 * dbkf) + Wbkf

59.90Dia.(mm)

0.20D 84(ft)

0.0014Sbkf

(ft / ft)

2.88R

(ft)

32.2g

(ft / sec2)14.62 R / D 84

D 84 at Riffle D 84 (mm) / 304.8

Gravitational AccelerationRelative Roughness

R(ft) / D (ft)

Bankfull SLOPEHydraulic RADIUS

Abkf/ Wp

336.0DA(mi2)

0.362u*

(ft/sec)

3.41 ft / sec 559.33 cfs

Drainage AreaShear Velocity

u* = (gRS)

Bankfull

DISCHARGE

u = [ 2.83 + 5.66 * Log { R / D 84 } ] u*

ESTIMATION METHODSBankfull

VELOCITY

1. Friction Relative

BKFdischarge

estimatefrom

Roughness(Figs. 2-18, 2-19)u = 1.49*R2/3*S 1/2/ n n = 0.0316

b) Manning's n from Stream Type (Fig. 2-20) n = 0.04

2. Roughness Coefficient: u = 1.49*R2/3

*S1/2

/ n2.83 ft / sec 463.39 cfs

* 2/3* 1/2

2. Roughness Coefficient: a) Manning' s n fro m Friction Factor / Relativ3.58 ft / sec 586.57 cfs

oug ness act ve

e

pebblecounts

c) Manning's n from Jar rett (USGS):

n = 0.027

3. Other Methods (Hey, Darcy-Weisbach, Chezy C, etc.)3.53 ft / sec 578.28 cfs

Darcy-Weisbach (Leopold, Wol man and Mi ller )

681.38 cfsn = 0.39*S 0.38 *R -0.16

. .4.15 ft / sec

Note: This equation is applicable to steep, step/pool , high bo undaryrough ness, cobble- and boul der-dominated stream systems; i.e.,for Stream Types A1, A2, A3, B1, B2, B3, C 2 & E3

Q = 0.0 year

3.38 ft / sec 555.00 cfs4. Continuity Equat ions : b) USGS Gage Data u = Q / A

4. Continuity Equations : a) Regional Curves u = Q / A0.00 ft / sec 0.00 cfs

Retur n Period for Bank full Discharg

cfsChezy C

. er e o s ey, arcy- e s ac , ezy , e c.0.00 ft / sec 0.00

1.5RIatgage

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BuffaloHawle USGSGa e

Stream:

Location:

Observers: Date:

D 5028.8 Median particle size of riffle bed material (mm)

Stream Type: C 4

Enter Required Information for Existing Condition

09/26/2012DF, JV

Buffalo River

Buff_Gage_GM_20120926 XIVValley Type:

D 50

D 68 (mm)304.8

25.3 Median particle size of bar or sub-pavement sample (mm)

Largestparticle frombarsample(ft)0 223

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D m ax 68 (mm) mm/ft

S

d

Existing bankfull water surface slope (ft/ft)

Largest particle from bar sample (ft)

0.00141

0.223

3.94 Existing bankfull mean depth (ft)

Range: 3 7 Use EQUATION 1: = 0.0834 ( )0.872

D m ax/D 50 Range: 1.3 3.0 Use EQUATION 2: = 0.0384 D /D 0.8871.14

Immersed specific gravity of sediment1.65

Select the Appropriate Equation and Calculate Critical Dimensionless Shear Stress

2.36

5050/DD

1s

5050/DD

Bankfull Dimensionless Shear Stress 2

d Required bankfull mean depth (ft) (use Dmax in ft)

EQUATION USED:

Calculate Bankfu ll Mean Depth Requi red f or Entrainment o f Largest Particle in Bar Sample

4.67

0.018

S

Dd

maxs1)-(*

S Required bankfull water surface slope (ft/ft) (use Dmax in ft)

Check: Stable Aggrading

Calculate Bankfull Water Surface Slope Required for Entrainment of Largest Particle in Bar

Sample

Degrading

0.00167d

DS

maxs1)-(*

Shields CO

25.85 69.74

Shields CO

Predicted largest moveable particle size (mm) at bankfull shear stress (Figure 3-11)

Predicted shear stress required to initiate movement of measuredDmax (mm) (Figure 3-11)

0.347Bankfull shear stress= dS (lbs/ft2) (substitute hydraulic radius, R, with mean depth, d )

= 62.4, d = existing depth, S = existing slope

. .

Shields CO

9.97 3.81

Shields CO

0.0036 0.0014

Check: Stable Aggrading

Predicted slope required to initiate movement of measuredDmax (mm)

= predicted shear stress, = 62.4, d = existing depth

Predicted mean depth required to initiate movement of measured Dmax (mm)

= predicted shear stress, = 62.4, S = existing slope

Degrading

Sd

dS

8/10/2011 Ditch

HUC:

??

Bankfull VELOCITY & DISCHARGE Estimates

Stream: Thief River Location: GM6 5+07 Riffle 8/10/11

Date: Stream Type: Valley Type:

Observers: DF, CH, GB

72 17Abkf 2 76

dbkf

INPUT VARIABLES OUTPUT VARIABLES

Bankfull Riffle Cross-Bankfull Riffle MeanDEPTH

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72.17Abkf

(ft2)2.76

dbkf(ft)

26.13Wbkf(ft)

30.04Wp(ft)

Bankfull Riffle WIDTHWetted PERMIMETER

~ (2 * dbkf) + Wbkf

Sectional AREABankfull Riffle Mean DEPTH

VelocityusingU/U*

andManningsnand6.44

Dia.(mm)

0.02D 84(ft)

0.0006Sbkf

(ft / ft)

2.40R

(ft)

32.2g

(ft / sec2)114.29 R / D 84

D 84 at Riffle D 84 (mm) / 304.8

Gravitational AccelerationRelative Roughness

R(ft) / D (ft)

Bankfull SLOPEHydraulic RADIUS

Abkf/ Wp

Qatbankfull.

0.0DA(mi2)

0.219u*

(ft/sec)

3.17 ft / sec 228.64 cfs

Drainage AreaShear Velocity

u* = (gRS)

Bankfull

DISCHARGE

u = [ 2.83 + 5.66 * Log { R / D 84 } ] u*

ESTIMATION METHODSBankfull

VELOCITY

1. Friction Relative

Roughness(Figs. 2-18, 2-19)u = 1.49*R2/3 *S 1/2 / n n = 0.0203

b) Manning's n from Stream Type (Fig. 2-20) n = 0

2. Roughness Coefficient: a) Manning' s n fro m Frictio n Factor / Relativ3.27 ft / sec 236.07 cfs

2. Roughness Coefficient: u = 1.49*R2/3 *S 1/2 / n

0.00 ft / sec 0.00 cfs

* 2/3 * 1/2

oug ness

c) Manning's n from Jar rett (USGS):

n = 0.021

233.76 cfsn = 0.39*S 0.38 *R -0.16

. .3.24 ft / sec

3. Other Methods (Hey, Darc y-Weisbach, Chezy C, etc.)3.52 ft / sec 253.74 cfs

Darcy-Weisbach (Leopold, Wolman and Miller)

Note: This equation is applicable to steep, step/pool , high boundaryroug hness, cobbl e-and bo ulder-dominated stream systems; i.e.,

for Stream Types A1, A2, A3, B1, B2, B3, C 2 & E3

Q = 0.0 year

0.00 ft / sec 0.00 cfs

cfsChezy C

. er e o s ey, arcy- e s ac , ezy , e c.0.00 ft / sec 0.00

4. Continuity Equat ions : b) USGS Gage Data u = Q / A

4. Continuity Equations : a) Regional Curves u = Q / A0.00 ft / sec 0.00 cfs

Retur n Period for Bank full Discharg

GM6USGSStreamStats1.5RI

ungaged site velocity and

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ungaged sitevelocity

and

dischargeestimatesonprevious

page. Thosewerebasedon

bankfullcrosssectionareaand

velocityestimatesusing

Manningsnfrom

pebble

count

.

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Figure1. ShellRiverstudylocationinCrow

Wing

HUC

8

and

Mississippi

Headwaters

Basin.

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FlowDirection

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Downstreamculvert

inverts

398betweenculvertsnotsurveyed

Upstreamculvertinverts

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Culverttopelevation

Approximatenewculvertinvertelevations

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2012 Shell River Riffle XS 0+00Ground Points Bankfull Indicators Water Surface Points

1508Wbkf = 49. 4 Dbkf = 1. 09 Abkf = 54. 1

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on(ft)

1507

Elevati

1505

1506

1504

15030 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95


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.

themarshtoforesttransitionarea.Thispondhasheldwaterandsedimentatleastsince1991.

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Figure11. ShellRiveraerialphotoshowingbeaverpondwashedout09/08/2011.

Three lines of 10ft by 6ft culvert elevations or two lines of 14ft by 6ft:

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Threelinesof10 ftby6 ftculvertelevationsortwolinesof14 ftby6 ft:

Upperroadcrossinglowestculvert Lowerroadcrossinglowestculvert

upstreaminvert downstreaminvert downstreaminvert upstreaminvert

1501.5ft 1501.47ft 1501.18ft 1501.13ft

CrossSection BankfulBankfull

Width

Mean

BankfullWidth/Depth

Widthof

Flood EntrenchmentLEP Lat LEP Lo n REP Lat REP Lon

Rosgen

Stream Notes

Stream:ShellRiverT694Crossings091712 CalculationsofKeyMorphologicalParameters

S tat io n Area(ft)

((ft)

Depth(ft)Ratio ProneArea

(ft)

Ratio

Classification

Riffle0+00 54.10 49.43 1.09 45.35 340 6.88 46.95097 95.33603 46.95107 95.33637 C6c aboveculverts

Pool0+69 52.91 33.91 1.56 21.74 340 10.03 46.95096 95.33604 46.95073 95.33627 C6c aboveculverts

Riffle8+03 55.58 46.00 1.21 38.02 600 13.04 46.95049 95.33395 46.95025 95.33390 C6c aboveculverts

Riffle42+58 58.98 50.99 1.16 43.96 150 2.94 46.94464 95.32798 46.94467 95.32826 C5c belowculverts

Pool 44+84 65.03 50.80 1.28 39.69 150 2.95 46.94425 95.32758 46.94420 95.32781 C5c below culverts. . . . . . . . .

Riffle45+61 54.85 46.53 1.18 39.43 150 3.22 46.94403

95.32757 46.94404

95.32784 C5c

below

culverts

RiffleMean 55.88 48.24 1.16 41.69 C5c

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Stream: Location:

Date: 50510

Observers: Valley Type: Stream Type: Ditch B

(2) (3) (4) (5) (6) (7) (8)

BEHI rating

(Worksheet

NBS rating

(Worksheet

Bank

erosion

Length of

bank (ft)

Study

bank

Erosion

subtotal

Erosion

Rate

CR7 - 12

Graph Used: North Carolina Total Stream Length (ft): 23150

DF, JV

(1)

Station (ft)

Thie f River, Reach - BEHI_Recon_CR7_12_050510

3-11)

(adjective)

3-12)

(adjective)

rate

(Figure 3-9

or 3-10)

(ft/yr)

height (ft) [(4)(5)(6)]

(ft3/yr)

(tons/yr/ft)

{[(7)/27]

1.3 / (5)}

1 M d t V L 0 016 197 0 15 0 47 28 0 01160153

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. o era e ery ow . . . . .



5. Low Very Low 0.001 700.0 8.0 4.48 0.00030

155_LB

155_RB

156_LB


7. Low Very Low 0.000 1055.0 10.0 0.00 0.00000


9. Low Very Low 0.001 175.0 8.0 1.12 0.00030159_LB

157_RB

156_RB

157_LB


11. Low Very Low 0.001 300.0 9.0 2.16 0.00030

12. Low Very Low 0.001 250.0 15.0 3.00 0.00060

13. Low Very Low 0.001 1200.0 8.0 7.68 0.00030

159_RB

160_LB

160_RB

161_RB

14. Low Very Low 0.001 525.0 8.0 3.36 0.00030


16 Moderate Very Low 0.016 460.0 10.0 73.60 0.00770

17 Low Very Low 0.001 784.0 8.0 5.02 0.00030

163_LB

164_RB

165 rb

162_RB





166-167 lb

168 rb

169 lb

170 rb

Stream: Location:

Date: 12/30/1899

Observers: Valley Type: Stream Type:

(2) (3) (4) (5) (6) (7) (8)

BEHI rating NBS rating Bank Length of Study Erosion Erosion

Thief River , Reach - BEHI_Recon_CR

Graph Used: Total Stream Length (ft): 23150

(1)

Station (ft)

(Worksheet

3-11)

(adjective)

(Worksheet

3-12)

(adjective)

erosion

rate

(Figure 3-9

or 3-10)

(ft/yr)

bank (ft) bank

height (ft)

subtotal

[(4)(5)(6)]

(ft3/yr)

Rate

(tons/yr/ft)

{[(7)/27]

1.3 / (5)}

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22 Low Very Low 0.001 685.0 12.0 6.58 0.00050171 lb





172 lb

174

175-177

27

28

29

30

31

32

33

34

35

36

Total

Erosion

(ft3/yr) 2891.78Total

Sum erosion subtotals in Column (7) for each BEHI/NBS

combination

Convert erosion in ft3/ r to ds

3/ r {divide Total Erosion (ft

3/ r) b

(yds3/yr) 107.10Total

Erosion

(tons/yr) 139.23

Unit Erosion

Rate

(tons/yr/ft) 0.0060

Calculate erosion per unit length of channel {divide Total Erosion

(tons/yr) by total length of stream (ft) surveyed}

27}

Convert erosion in yds3/yr to tons/yr {multiply Total Erosion

(yds3/yr) by 1.3}

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GM14 Riffle XS 2011GM14 Riffle XS 21+07, 2011 Bankfull Indicators Water Surface Points GM14 Riffle XS 21+07, 2012

1130.0

Wbkf = 114. 6 Dbkf = 3. 94 Abkf = 451. 9

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1125.0

1127.5

Elevation

(ft)

1122.5

1117.5

1120.0


1115.0

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145

GM3 Riffle XS 1+48, 2011 Bankfull Indicators Water Surface Points GM3 Riffle XS 1+48, 2012

1160

Wbkf = 45. 9 Dbkf = 3. 6 Abkf = 165. 4

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t)

1156

Elevation

(

1148

1144


-20 0 20 40 60 80

GM1 Pool XS 9+95 SB Overlay 08/19/11, 10/23/12GM1 Pool XS 9+95 SB, 2011 GM1 Pool XS 9+95 SB, 2012 Adjusted

1162

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n

(ft) 1160

1161

Elevati

1158

1159

1155

1156

in


1154

10 11 12 13 14 15 16 17 18 19 20 21 22 23

Toe

GM3 Pool XS 3+12 SB 08/23/11 - 10/24/12GM3 Pool XS 3+12 SB, 2011 Adjusted Elev GM3 Pool XS 3+12 SB, 2012 Adjusted

1150

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n(f

t)

1148

Elevati

1144

1146

in

1142

Toe

P


1140

48 49 50 51 52 53 54 55 56 57 58 59 60

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rlr friedl 041013

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