2011-03-21_PERMIT FILE - C2009087A ‎(13)‎

• Permit No: C2009087A
• IBM Index Class Name: Permit File
• Doc Date: 3/21/2011
• Doc Name: Pond 002 10yr/24hr Storm Event
• Section_Exhibit Name: Exhibit 2.05.3-E2 Appendix 2.05.3-E2.A Addendum 2.05.3-E2.A-1
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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54
Emergency Spillwax
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
6,655.00 25.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation:
6,654.44 ft
H'graph Detention Time:
0.74 hrs
Pond Model:
CSTRS
Dewater Time:
0.56 days
Trap Efficiency:
91.77%
Dewatering time is calculated from peak stage to lowest spillway
Elevation - Capacity- Discharge Table
Elevation
Area
(ac)
Capacity
(ac -ft)
Discharge
(cfs)
Dewater
Time
(hrs)
6,646.43
0.707
0.000
0.000
Top of Sed. Storage
6,646.50
0.710
0.053
0.000
6,647.00
0.730
0.413
0.000
6,647.50
0.751
0.783
0.000
6,648.00
0.772
1.164
0.000
6,648.50
0.794
1.556
0.000
6,649.00
0.816
1.958
0.000
6,649.50
0.838
2.372
0.000
6,650.00
0.860
2.796
0.000
6,650.50
0.882
3.232
0.000
6,651.00
0.904
3.678
0.000
6,651.50
0.926
4.135
0.000
6,652.00
0.949
4.604
0.000
6,652.50
0.972
5.084
0.000
6,653.00
0.995
5.576
0.000
6,653.50
1.018
6.079
0.000
6,653.80
1.032
6.386
0.000
Spillway #1
6,654.00
1.042
6.594
2.617
0.96*
6,654.44
1.063
7.054
15.281
12.45 Peak Stage
6,654.50
1.066
7.121
17.118
6,655.00
1.090
7.660
37.287
Spillway #2
6,655.50
1.118
8.212
45.023
6,656.00
1.147
8.778
75.937
6,656.50
1.176
9.359
112.850
6,657.00
1.206
9.955
159.397
Filename: Pond 002_10yr, 24hr.sc4
Printed 12 -06 -2010
TRO 1 -10 20.5.3 -E2 -A 1.54 12/10