st. luke' s methodist church bryan, texas detention pond report · 2019. 8. 7. · design...

St. Luke' s Methodist Church

Bryan, Texas

Detention Pond Report

December, 2008

Pre ared B :P Y

Civil Development, Ltd.

College Station, Texas

979- 764- 7743

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Bryan, Texas


December, 2008

Prepared By:Civil Development, Ltd.

doCollege Station, Texas

979- 764- 7743

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GENERAL

Location: The site for St. Luke' s Methodist Church is located on the north side of Villa

Maria Road approximately 1. 2 miles east of SH 47.Description:

Area: Initial phase= 9. 75 acres. Ultimate development= 14. 75 acres

Proposed Land Use: Church campus

Existing Land Use: Vacant

Land Description: The site is densely wooded over most of the area. There is a natural drainage

channel that bisects the site. The topography falls toward that channel from bothsides.

r Adjoining Land Use: The site is bounded on the east and west by residential subdivisions. To the northare unplatted residential developments along Chick Lane. To the south across

Villa Maria Road is the Traditions Golf Course and Subdivision.

Primary Drainage Facility: The site is drained by a tributary of Turkey Creek. Runoff that leaves the site

flows under Villa Maria Road and continues down the tributary through theTraditions Golf Course.

Flood Hazard Information:

FEMA FIRM. 48041 CO143 C

Floodplain: No portion of any developed lots lies within a regulation floodplain.

STORM DRAINAGE DESIGN

General Information: All of the storm drainage system on the site is private.

DETENTION POND DESIGN

General Methodology: It is anticipated that the ultimate development of the church campus will include 4

or 5 buildings and associated parking lots. Through discussions with the church, itr, was decided to design the detention facilities for the ultimate development scenario

so it was not necessary to retrofit pipes and outlet control facilities. This includesall 14. 75 acres that the church currently owns, even though only a small part of

d, that is being developed at this time.

As indicated previously, there is a natural channel that bisects the site and providesdrainage for this site, as well as the two residential subdivisions adjacent to the

site. Both of these subdivisions have detention facilities that outfall into this

tributary of Turkey Creek. Due to the topography and soil composition at the site,the channel has incised a deep gully with near vertical banks.

The detention facility being proposed for this site involves installation of a damacross the channel. Outlet control structures will be built into the dam to store

wr runoff and release it at a controlled rate. The size of the detention pond and the

outlet control structures were determined using the HEC- HMS computer software.The computer model was developed to incorporate hydrographs from the three

surrounding detention ponds and also account for the existing storage generated bythe box culvert under Villa Maria Road. The Pre- and Post- Development Drainage

Area Maps are shown in Exhibits A and B. Runoff from other Drainage Areas

around the site was estimated using the standard SCS Curve Number Method.Input data for Pre- and Post- Development Scenarios are shown below.

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HEC- HMS Analysis

Input Data

Pre- Development Conditions

Drainage Area

Name I Area ; CN ' Im/ ery j Lag TimeI_._.._._._;__._._...__._......_...---

sq. mi.) i min.)

rALI1 j . 00786 84 J..._..--38-- ---._23 _AL12i .01408 87 1 52 — - 11

AL 13 _ 00239 r-_ 87 52 4

AL14 i . 00579 77 0 j 7

OM11 I . 00891 87 52 11

OM12 00405 8712j 12

00945 98 i 1001

8

Othll 00286 7^f

1 26O._____:......._.._....._._._.....__._CH11 01970 75 0, j 15

r Post- Development Conditions

Drainage Area ( j % I

Name i Area CNNi Lag TimeI f > erv. -- _

sq. mi.) I j min.)

AL21 00786 1 84 38 j_ -- 23 —AL22 01408 87 52 ! 11

a...----... ___.......

00239 i 87 52 i 4

r AL24 00579 77 I 0 --_... 7OM21 1 . 00891 i 87 I 52i—...___1._1

OM22 00405 187 52 12

VM21 00945 I 98 100 1— - 8

Oth21 00286 77 I 0_ 26_—

CH21 0041875 94 85 3

CH22 0103594 94 ! 85j -8 —

iwr CH23 j.. 0039375-:.._.. 77- ;.._ _ 0 I 5

CH24 00125 77 , 0 __ i_. 4T..____.—_.._._______ ____.—_._.—_.____._..._:...-_._...__:__..:_-_._._..

Design Storm 24 hr, SCS Type III distribution

Storm Intervals 100, 50, 25, 10 and 2 year events

Outlet Control System

Design: The outlet control structure is a multi- staged facility. It consists of a rectangular

concrete box, approximately 13 feet deep. It is placed in the dam, immediately infront of the emergency spillway. The structure has two 15" pipes that extend

upstream toward the stored water. One is at flowline elevation 272.00 and the

second is at 277. 00. The top of the box is at 284. 00 with a trash rack over it.There are two pipes extending downstream out of the structure. One is a 24" andone is an 18". Both exit the structure at the same flowline elevation and release

water at the downstream toe of the dam immediately near the Villa Maria Roadculvert. A detail of the structure is shown on Sheet C3. All four pipes in the

wr detention pond structure will be RCP.

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Emergency Outfall: The emergency spillway for the pond is located in the middle of the detention ponddam. It is designed to operate only when the outlet structure on the pond isblocked, and allows overflows to spill toward the Villa Maria Road culvert. The

spillway will be lined with 4" concrete pavement and will extend over the rear

crest down to the toe of the dam to prevent erosion in the event that the spillway isovertopped.

Spillway Shape: Trapezoid

Spillway Width: 25 ft.

Side slopes: 4H: 1 V

Spillway Elev.: 286. 3 ft

Top of Berm Elev.: 287. 5 ft

riCross slope: 1. 0 %

Manning' s n: 0. 014 ( concrete pavement)

HEC- HMSAnalysis SummaryM

The pre- and post- development flowrates are analyzed immediately downstream ofthe Villa Maria Road culvert. This point is referred to as Study Point A in theSummary Results from the HEC- HMS model. It was chosen to account for the

fm storage that is generated in the pre- development condition from the culvert under

Villa Maria.

i r j j 100 yr

Condition2 yr 10 yr 25 yr 50 yr j 100 yr Emerg

Spllv y)-......cfs cfs cfs cfs cfs cfs

Pre- Dev. 66. 6 i 120. 7 j 138.9 j 164. 6 ! 190. 1

Post- Dev. 63. 6 1 98. 8 1 123. 5 1 156.2 j 178. 4 i 221. 2

Pond WSEL 282.4 1 284. 6 284. 9 285. 5 286. 3 286. 9

Emergency Spillway Elev.= 286. 3 ft

asTop of Dam Elevation = 287. S ft

Available Freeboard above max. WSEL = 0. 6ft.

Applicable Exhibits: Exhibit A— Drainage Area Map— Pre- Development

Exhibit B— Drainage Area Map— Post- Development

Exhibit C— Lag Time Computation WorksheetAppendix 1 — HEC-HMS Summary Output Files— Pre- Development

rr Appendix 2— HEC- HMS Summary Output Files— Post- Development

Appendix 3 — HEC- HMS Pond A Summary Files— Post- Development

CONCLUSION

The detention facility described in this report has been designed in accordance withthe BCS Design Standards. It was also designed for the ultimate development

scenario, which will eventually include all 14. 75 acres that the church owns.Under these conditions, it functions as required to reduce the peak outflow below

the pre- development flowrates.

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Appendix 1


HEC-HMS Summary Output FilesPre- Development

Project: St Lukes Methodist Church Simulation Run: Pre Dev 2 yr

Start of Run: 01 Jan2007, 00:00 Basin Model: Pre DevEnd of Run: 02Jan2007, 00:05 Meteorologic Model: 2 yr

Compute Time: 16Dec2008, 09: 33: 42 Control Specifications: 24 hr duration

Volume Units: IN

Hydrologic Drainage Area Peak Discharge Time of Peak Volume

Element M12) CFS) IN)

r„ AL11 0. 00786 9. 9 01Jan2007, 12: 25 3.44

AL12 0. 01408 26. 1 01 Jan2007, 12: 12 3. 82

AL13 0. 00239 5. 5 01Jan2007, 12: 05 3. 83

AL14 0. 00579 7. 8 01 Jan2007, 12: 09 2. 21

CH 11 0. 01970 19. 0 01 Jan2007, 12: 18 2. 04

Jct 1 0. 07509 66. 6 01 Jan2007, 12: 13 3. 11

Jct 2 0. 01836 25.8 01 Jan2007, 12: 10 4. 17

Jct 3 0. 03124 23.4 01 Jan2007, 12: 33 3. 34

OM11 0. 00891 16. 5 01Jan2007, 12: 12 3. 82

OM12 0. 00405 7. 3 01Jan2007, 12: 13 3. 82

Oth11 0. 00286 2. 3 01Jan2007, 12: 31 2. 20

Pnd AL2A 0. 02194 19. 7 01 Jan2007, 12: 34 3. 68

Pnd OM1 0. 00891 7. 4 01Jan2007, 12: 32 3. 81

Pnd OM2 0. 00405 0. 5 01 Jan2007, 14: 53 1. 99

Pnd VM Pre 0. 07509 66.6 01 Jan2007, 12: 14 3. 11

Rch 1 0.03124 23.4 01Jan2007, 12: 44 3. 33

Study Pt A 0.07509 66. 6 01 Jan2007, 12: 14 3. 11

VM 11 10. 00945 121. 2 01 Jan2007, 12: 09 14. 50

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Start of Run: 01Jan2007, 00: 00 Basin Model: Pre Devg"

End of Run: 02Jan2007, 00: 05 Meteorologic Model: 10 yr


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Volume Units: IN

an Hydrologic Drainage Area Peak Discharge Time of Peak Volume


n AL11 0. 00786 17. 8 01Jan2007, 12: 25 6. 21

AL12 0. 01408 45. 1 01Jan2007, 12: 12 6. 65

AL13 0. 00239 9. 5 01 Jan2007, 12: 05 6. 66dW

AL14 0. 00579 16. 7 01 Jan2007, 12: 09 4. 72

CH 11 0.01970 42.2 01 Jan2007, 12: 17 4. 49

Jct 1 0. 07509 120. 9 01 Jan2007, 12: 13 5. 76

Jct 2 0.01836 42. 8 01 Jan2007, 12: 10 7. 03

Jct 3 0.03124 49.4 01 Jan2007, 12: 27 6. 02

OM11 0. 00891 28. 5 01Jan2007, 12: 12 6. 65

OM12 0.00405 12. 6 01Jan2007, 12: 13 6. 65

Oth11 0. 00286 5. 0 01Jan2007, 12: 29 4. 70

rrPnd AL2A 0.02194 41. 2 01 Jan2007, 12: 29 6.49

Pnd OM1 0. 00891 11. 9 01Jan2007, 12: 34 6. 64

Pnd OM2 0.00405 1. 1 01 Jan2007, 13: 59 4. 03

Pnd VM Pre 0.07509 120. 7 01 Jan2007, 12: 14 5. 76

Rch 1 0.03124 49.4 01 Jan2007, 12: 38 6. 01

Study Pt A 0. 07509 1120. 7 01 Jan2007, 12: 14 5. 76

VM 11 10. 00945 134. 9 JOUan2007, 12: 09 17. 39

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Start of Run: 01Jan2007, 00: 00 Basin Model: Pre DevEnd of Run: 02Jan2007, 00: 05 Meteorologic Model: 25 yr

Compute Time: 16Dec2008, 09:33:20 Control Specifications: 24 hr duration

Volume Units: IN



AL11 0. 00786 20.6 01 Jan2007, 12: 25 7. 18

AL12 0. 01408 51. 6 01 Jan2007, 12: 12 7.64

AL13 0. 00239 10. 9 01 Jan2007, 12: 05 7.65

AL14 0. 00579 19. 8 01 Jan2007, 12: 09 5.64

CH11 0. 01970 50. 5 01Jan2007, 12: 17 5.39

Jct 1 0. 07509 139. 3 01 Jan2007, 12: 13 6. 70

Jct 2 0. 01836 48. 8 01 Jan2007, 12: 10 8. 02

Jct 3 0. 03124 58. 2 01 Jan2007, 12: 27 6. 96

OM 11 0. 00891 32. 7 01 Jan2007, 12: 12 7. 64

OM12 0. 00405 14.4 01Jan2007, 12: 13 7. 64

Oth 11 0. 00286 6. 0 01 Jan2007, 12: 29 5. 61

Pnd AL2A 0. 02194 48.4 01 Jan2007, 12: 28 7. 47

Pnd OM1 0. 00891 13. 3 01Jan2007, 12: 34 7. 62

Pnd OM2 0. 00405 1. 3 01 Jan2007, 13: 49 4. 77

Pnd VM Pre 0. 07509 138. 9 01 Jan2007, 12: 14 6. 70

Rch 1 0. 03124 58. 2 01 Jan2007, 12: 38 6. 95

Study Pt A 0. 07509 138. 9 01 Jan2007, 12: 14 6. 70

VM11 0. 00945 39. 6 01Jan2007, 12: 09 18. 39

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Start of Run: 01 Jan2007, 00:00 Basin Model: Pre DevEnd of Run: 02Jan2007, 00: 05 Meteorologic Model: 50 yr.


Volume Units: IN



AL11 0. 00786 24.4 01Jan2007, 12: 25 8. 55

AL12 0. 01408 60.7 01Jan2007, 12: 12 9. 02

AL13 0. 00239 12. 9 01 Jan2007, 12: 05 9. 03

AL14 0. 00579 24.2 01Jan2007, 12: 08 6. 94

CH 11 0. 01970 62.2 01 Jan2007, 12: 17 6. 67

Jct 1 0. 07509 165. 1 01 Jan2007, 12: 13 8. 03

Jct 2 0.01836 56. 6 01 Jan2007, 12: 10 9. 41

Jct 3 0.03124 70. 6 01 Jan2007, 12: 26 8. 30

OM 11 0. 00891 38.4 01 Jan2007, 12: 12 9.02

OM 12 0. 00405 17. 0 01 Jan2007, 12: 13 9. 02

Oth 11 0. 00286 7. 3 01 Jan2007, 12: 29 6. 91

r Pnd AL2A 0. 02194 58.5 01 Jan2007, 12: 27 8. 85

Pnd OM1 0. 00891 15. 2 01Jan2007, 12: 34 9. 00

Pnd OM2 0. 00405 1. 7 01 Jan2007, 13: 32 5. 86

Pnd VM Pre 0. 07509 164. 6 01 Jan2007, 12: 14 8. 03

Rch 1 0. 03124 70. 6 01 Jan2007, 12: 37 8. 28

Study Pt A 0. 07509 164. 6 01 Jan2007, 12: 14 8. 03

VM11 0. 00945 46. 2 JOUan2007, 12: 09 19. 79

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Start of Run: 01 Jan2007, 00: 00 Basin Model: Pre DevEnd of Run: 02Jan2007, 00: 05 Meteorologic Model: 100 yr


Volume Units: IN



AL11 0. 00786 27. 6 01Jan2007, 12: 25 9. 72

AL12 0. 01408 68. 5 01Jan2007, 12: 12 10. 21

AL13 0. 00239 14. 5 01 Jan2007, 12: 05 10. 23

AL14 0. 00579 28.0 01Jan2007, 12: 08 8. 07

CH11 0.01970 72. 3 01Jan2007, 12: 17 7. 79

Jct 1 0.07509 190. 4 01 Jan2007, 12: 15 9. 18

Jct 2 0. 01836 63. 2 01 Jan2007, 12: 10 10. 60

Jct 3 0. 03124 81. 1 01 Jan2007, 12: 26 9.45

OM11 0. 00891 43. 4 01Jan2007, 12: 12 10. 21

OM 12 0. 00405 19. 1 01 Jan2007, 12: 13 10. 21

Oth 11 0. 00286 8. 4 01 Jan2007, 12: 29 8.04

Pnd AL2A 0. 02194 67. 0 01 Jan2007, 12: 27 10. 03

Pnd OM1 0. 00891 16. 9 01Jan2007, 12: 35 10. 18

Pnd OM2 0. 00405 2. 0 01 Jan2007, 13: 22 6. 82

Pnd VM Pre 0. 07509 190. 1 01 Jan2007, 12: 16 9. 18

Rch 1 0. 03124 81. 1 01 Jan2007, 12: 37 9.43

Study Pt A 0. 07509 190. 1 01 Jan2007, 12: 16 19. 18

VM11 0. 00945 51. 9 01Jan2007, 12: 09 110. 99

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Appendix 2


HEC-HMS Summary Output FilesPost-Development

rr

Project: St Lukes Methodist Church Simulation Run: Post Dev 2 yr Des 2

Start of Run: 01Jan2007, 00: 00 Basin Model: Post Dev Design 2



Volume Units: IN



AL21 0. 0078600 9. 9 01 Jan2007, 12: 25 3. 44

AL22 0. 0140800 26. 1 01Jan2007, 12: 12 3. 82

AL23 0. 0023900 5. 5 01 Jan2007, 12: 05 3. 83

AL24 0. 0057800 7. 8 01 Jan2007, 12: 09 2. 21

CH21 0. 0041875 10. 9 01 Jan2007, 12: 04 4. 40rr

CH22 0. 0103594 23. 1 01 Jan2007, 12: 09 4. 39

CH23 0. 0039375 5. 7 01 Jan2007, 12: 07 2. 21

CH24 0. 0012500 1. 9 01 Jan2007, 12: 06 2. 21

Jct 1 0. 0415994 40. 1 01Jan2007, 12: 11 3. 60

Jct 2 0. 0183600 25. 8 01Jan2007, 12: 10 4. 17

Jct 3 0. 0312400 23. 4 01 Jan2007, 12: 33 3. 34

OM21 0. 0089100 16. 5 01 Jan2007, 12: 12 3. 82

OM22 0. 0040500 7. 3 01 Jan2007, 12: 13 3. 82

Oth21 0. 0028600 2. 3 01 Jan2007, 12: 31 2. 20

Pnd A 0. 0497244 31. 9 01 Jan2007, 12: 33 3. 55

Pnd AL2A 0. 0219400 19. 7 01 Jan2007, 12: 34 3. 68

Pnd OM1 0. 0089100 7. 4 01Jan2007, 12: 32 3. 81

Pnd OM2 0. 0040500 0. 5 01 Jan2007, 14: 53 1. 99

Pnd VM Post 0. 0751144 63. 6 01 Jan2007, 12: 10 3. 58

Rch 1 0. 0312400 23. 4 01 Jan2007, 12: 42 3. 33

Study Pt A 0. 0751144 63. 6 01 Jan2007, 12: 10 3. 58

VM21 0. 0094500 21. 2 01 Jan2007, 12: 09 4. 50

rw

rr


Start of Run: 01Jan2007, 00: 00 Basin Model• Post Dev Design 2End of Run: 02Jan2007, 00:05 Meteorologic Model: 10 yr


Volume Units: IN



AL21 0. 0078600 17. 8 01 Jan2007, 12: 25 6. 21

AL22 0. 0140800 45. 1 01 Jan2007, 12: 12 6. 65

AL23 0. 0023900 9. 5 01 Jan2007, 12: 05 6. 66

AL24 0. 0057800 16. 7 01 Jan2007, 12: 09 4. 72

CH21 0. 0041875 17. 9 01 Jan2007, 12: 04 7. 29

CH22 0. 0103594 38. 1 01 Jan2007, 12: 09 7. 29

CH23 0. 0039375 12. 1 01Jan2007, 12: 07 4. 72

CH24 0. 0012500 4. 0 01Jan2007, 12: 06 4. 73

Jct 1 0. 0415994 62. 9 01 Jan2007, 12: 11 6. 33

Jct 2 0. 0183600 42. 8 01 Jan2007, 12: 10 7. 03

Jct 3 0. 0312400 49. 4 01Jan2007, 12: 27 6. 02

OM21 0. 0089100 28. 5 01 Jan2007, 12: 12 6. 65

OM22 0. 0040500 12. 6 01 Jan2007, 12: 13 6. 65

Oth21 0. 0028600 5. 0 01 Jan2007, 12: 29 4. 70

Pnd A 0. 0497244 64. 9 01Jan2007, 12: 34 6. 28

Pnd AL2A 0. 0219400 41. 2 01 Jan2007, 12: 29 6. 49

Pnd OM1 0. 0089100 11. 9 01Jan2007, 12: 34 6. 64

Pnd OM2 0. 0040500 1. 1 01 Jan2007, 13: 59 4. 03

Pnd VM Post 0. 0751144 98. 8 01 Jan2007, 12: 17 6. 32

Rch 1 0. 0312400 49. 4 01 Jan2007, 12: 36 6. 01

Study Pt A 0. 0751144 98. 8 01 Jan2007, 12: 17 6. 32

VM21 0. 0094500 34. 9 01 Jan2007, 12: 09 7. 39

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Start of Run: 01Jan2007, 00: 00 Basin Model: Post Dev Design 2End of Run: 02Jan2007, 00: 05 Meteorologic Model: 25 yr


Volume Units: IN

AL21 0. 0078600 20. 6 01Jan2007, 12: 25 7. 18

AL22 0. 0140800 51. 6 01Jan2007, 12: 12 7. 64

AL23 0. 0023900 10. 9 01Jan2007, 12: 05 7. 65

AL24 0. 0057800 19. 8 01 Jan2007, 12: 09 5. 64

CH21 0. 0041875 20. 4 01 Jan2007, 12: 04 8. 29

CH22 0. 0103594 43. 3 01 Jan2007, 12: 09 8. 28

CH23 0. 0039375 14. 4 01 Jan2007, 12: 07 5. 64

CH24 0. 0012500 4. 7 01Jan2007, 12: 06 5. 64

Jct 1 0. 0415994 71. 4 01Jan2007, 12: 30 7. 28

Jct 2 0. 0183600 48. 8 01Jan2007, 12: 10 8. 02

Jct 3 0. 0312400 58. 2 01Jan2007, 12: 27 6. 96

OM21 0. 0089100 32. 7 01 Jan2007, 12: 12 7. 64

OM22 0. 0040500 14. 4 01Jan2007, 12: 13 7. 64

Oth21 0. 0028600 6. 0 01Jan2007, 12: 29 5. 61

Pnd A 0. 0497244 77. 5 01 Jan2007, 12: 33 7. 24

Pnd AL2A 0. 0219400 48. 4 01 Jan2007, 12: 28 7.47

Pnd OM1 0. 0089100 13. 3 01Jan2007, 12: 34 7. 62

Pnd OM2 0. 0040500 1. 3 01 Jan2007, 13: 49 4. 77

Pnd VM Post 0. 0751144 123. 5 01 Jan2007, 12: 14 7. 28

Rch 1 0. 0312400 58. 2 01 Jan2007, 12: 36 6. 95

Study Pt A 0. 0751144 123. 5 01Jan2007, 12: 14 7. 28

VM21 0. 0094500 39. 6 01Jan2007, 12: 09 8. 39

wo

rr


Start of Run: 01Jan2007, 00:00 Basin Model: Post Dev Design 2

End of Run: 02Jan2007, 00:05 Meteorologic Model: 50 yr


Volume Units: IN



AL21 0. 0078600 24. 4 01Jan2007, 12: 25 8. 55

AL22 0. 0140800 60. 7 01 Jan2007, 12: 12 9. 02

fAL23 0. 0023900 12. 9 01 Jan2007, 12: 05 9. 03

AL24 0. 0057800 24. 2 01 Jan2007, 12: 08 6. 94

CH21 0. 0041875 23. 8 01Jan2007, 12: 04 9. 69

CH22 0. 0103594 50. 6 01Jan2007, 12: 09 9. 68

CH23 0. 0039375 17. 6 01 Jan2007, 12: 06 6. 94

CH24 0. 0012500 5. 8 01 Jan2007, 12: 05 6. 95

Jct 1 0. 0415994 86. 7 01 Jan2007, 12: 29 8. 63

Jct 2 0. 0183600 56. 6 01Jan2007, 12: 10 9. 41

Jct 3 0. 0312400 70. 6 01 Jan2007, 12: 26 8. 30

OM21 0. 0089100 38. 4 01Jan2007, 12: 12 9. 02

OM22 0. 0040500 17. 0 01 Jan2007, 12: 13 9. 02

Oth21 0. 0028600 7. 3 01 Jan2007, 12: 29 6. 91

Pnd A 0. 0497244 84. 3 01 Jan2007, 12: 40 8. 59

Pnd AL2A 0. 0219400 58. 5 01 Jan2007, 12: 27 8. 85

Pnd OM1 0. 0089100 15. 2 01 Jan2007, 12: 34 9. 00

Pnd OM2 0. 0040500 1. 7 01 Jan2007, 13: 32 5. 86

Pnd VM Post 0. 0751144 156. 2 01 Jan2007, 12: 13 8. 63

Rch 1 0. 0312400 70. 6 01 Jan2007, 12: 35 8. 28

r Study Pt A 0. 0751144 156. 2 01Jan2007, 12: 13 8. 63

VM21 0. 0094500 46. 2 01 Jan2007, 12: 09 9. 79

rrr


Start of Run: 01Jan2007, 00: 00 Basin Model: Post Dev Design 2End of Run: 02Jan2007, 00: 05 Meteorologic Model: 100 yr


Volume Units: IN

rr AL21 0. 0078600 27. 6 01 Jan2007, 12: 25 9. 72

AL22 0. 0140800 68. 5 01 Jan2007, 12: 12 10. 21

AL23 0. 0023900 14. 5 01 Jan2007, 12: 05 10. 23

AL24 0. 0057800 27. 9 01 Jan2007, 12: 08 8. 07

CH21 0. 0041875 26. 7 01 Jan2007, 12: 04 10. 89

CH22 0. 0103594 56. 8 01 Jan2007, 12: 09 10. 88

CH23 0. 0039375 20. 3 01 Jan2007, 12: 06 8. 08

CH24 0. 0012500 6. 6 01 Jan2007, 12: 05 8. 08

Jct 1 0. 0415994 99. 6 01 Jan2007, 12: 29 9. 79

Jct 2 0. 0183600 63. 2 01 Jan2007, 12: 10 10. 60

Jct 3 0. 0312400 81. 1 01Jan2007, 12: 26 9. 45

OM21 0. 0089100 43. 4 01 Jan2007, 12: 12 10. 21

OM22 0. 0040500 19. 1 01 Jan2007, 12: 13 10. 21

Oth21 0. 0028600 8. 4 01 Jan2007, 12: 29 8. 04

Pnd A 0. 0497244 87.0 01Jan2007, 12: 46 9. 75

Pnd AL2A 0. 0219400 67.0 01 Jan2007, 12: 27 10. 03

Pnd OM1 0. 0089100 16. 9 01Jan2007, 12: 35 10. 18

Pnd OM2 0. 0040500 2. 0 01 Jan2007, 13: 22 6. 82

Pnd VM Post 0. 0751144 178. 4 01 Jan2007, 12: 10 9. 80

Rch 1 0. 0312400 81. 1 01 Jan2007, 12: 35 9. 43

rr Study Pt A 0. 0751144 178. 4 01 Jan2007, 12: 10 9. 80

VM21 0. 0094500 51. 9 01 Jan2007, 12: 09 10. 99

rr

Project: St Lukes Methodist Church Simulation Run: Post Dev 100 yr Des 2 Splwy

Start of Run: 01Jan2007, 00: 00 Basin Model: PostDev Des2- blocked



Volume Units: IN



AL21 0. 0078600 27. 6 01Jan2007, 12: 25 9. 72

AL22 0. 0140800 68. 5 01 Jan2007, 12: 12 10. 21

AL23 0. 0023900 14. 5 01 Jan2007, 12: 05 10. 23

AL24 0. 0057800 27. 9 01 Jan2007, 12: 08 8. 07

wrCH21 0. 0041875 26. 7 01 Jan2007, 12: 04 10. 89

CH22 0. 0103594 56. 8 01 Jan2007, 12: 09 10. 88

CH23 0. 0039375 20. 3 01 Jan2007, 12: 06 8. 08

CH24 0. 0012500 6. 6 01 Jan2007, 12: 05 8. 08

Jct 1 0. 0415994 99. 6 01 Jan2007, 12: 29 9. 79

Jct 2 0. 0183600 63. 2 01 Jan2007, 12: 10 10. 60

Jct 3 0. 0312400 81. 1 01 Jan2007, 12: 26 9. 45

OM21 0. 0089100 43. 4 01 Jan2007, 12: 12 10. 21

OM22 0. 0040500 19. 1 01 Jan2007, 12: 13 10. 21

err

Oth21 0. 0028600 8. 4 01 Jan2007, 12: 29 8. 04

Pnd A 0. 0497244 125. 1 01 Jan2007, 12: 11 9. 74

Pnd AL2A 0. 0219400 67. 0 01 Jan2007, 12: 27 10. 03

Pnd OM1 0. 0089100 16. 9 01Jan2007, 12: 35 10. 18

Pnd OM2 0. 0040500 2. 0 01 Jan2007, 13: 22 6. 82

Pnd VM Post 0. 0751144 221. 2 01 Jan2007, 12: 10 9. 79

Rch 1 0. 0312400 81. 1 01 Jan2007, 12: 35 9. 43

Study Pt A 0. 0751144 221. 2 01Jan2007, 12: 10 9. 79

VM21 0. 0094500 51. 9 01 Jan2007, 12: 09 10. 99

rr

rr

rir

rr

Appendix 3


HEC-HMS Pond A Summary FilesPost- Development

rr

Project: St Lukes Methodist Church

Simulation Run: Post Dev 2 yr Des 2 Reservoir: Pnd A

wr

Start of Run: 01 Jan2007, 00: 00 Basin Model: Post Dev Design 2



Volume Units: IN

rr

Computed Results

Peak Inflow : 53. 4 ( CFS) Date/ Time of Peak Inflow : 01Jan2007, 12: 08rir

Peak Outflow : 31. 9 ( CFS) Date/ Time of Peak Outflow : 01 Jan2007, 12: 33

Total Inflow : 3. 55 ( IN) Peak Storage : 0. 9 ( AC- FT)

aTotal Outflow : 3. 55 ( IN) Peak Elevation : 282. 4 ( FT)

rri

rr

err

rr

rn

rrr

r

rr

r





rrCompute Time: 22Dec2008, 10: 06: 53 Control Specifications: 24 hr duration

Volume Units: IN

rr

Computed Results

wrPeak Inflow : 87. 6 ( CFS) Date/ Time of Peak Inflow : 01Jan2007, 12: 08

Peak Outflow : 64. 9 ( CFS) Date/ Time of Peak Outflow : 01Jan2007, 12: 34


r Total Outflow : 6. 28 ( IN) Peak Elevation : 284. 6 ( FT)

r.

rr

r

r.

rr



rr




Volume Units: IN

Computed Results

errPeak Inflow : 99. 1 ( CFS) Date/ Time of Peak Inflow : 01Jan2007, 12: 08



Total Outflow : 7. 24 ( IN) Peak Elevation : 284. 9 ( FT)

rr

r

rrr

r

ri

r.

rr

ir

r






Volume Units: IN

rr

Computed Results

Peak Inflow : 115. 0 ( CFS) Date/ Time of Peak Inflow : 01Jan2007, 12: 08




err

r

rr

rir


Simulation Run: Post Dev' 100 yr Des 2 Reservoir: Pnd A




Volume Units: IN

r.

Computed Results

Peak Inflow : 128. 8 ( CFS) Date/ Time of Peak Inflow : 01Jan2007, 12: 08




r

rr

in

r

rr

an


Simulation Run: Post Dev 100 yr Des 2 Splwy Reservoir: Pnd A

MW

Start of Run: 01 Jan2007, 00: 00 Basin Model: PostDev Des2- blocked outlet


irCompute Time: 22Dec2008, 10: 17: 53 Control Specifications: 24 hr duration

Volume Units: IN

rw

Computed Results

Peak Inflow: 128. 8 ( CFS) Date/ Time of Peak Inflow: 01 Jan2007, 12: 08

Peak Outflow: 125. 1 ( CFS) Date/ Time of Peak Outflow : 01 Jan2007, 12: 11

Total Inflow: 9. 75 ( IN) Peak Storage : 3. 4 ( AC- FT)

Total Outflow: 9. 74 ( IN) Peak Elevation : 286. 9 ( FT)

r

rir

r

rrr

r.

rr

r

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