2008-12-11_PERMIT FILE - C1980007A ‎(29)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 25 Year, 24 Hour Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 RPE Pond
• Media Type: D
• Archive: Yes

•
SEDCAD 4 for Windows
Barrel Barrel Entrance Tailwater
Barrel Manning's Spillway
Diameter Length Loss Depth
Slope (%) n Elev (ft)
(in) (ft) Coefficient (ft)
12.00 11.00 0.00 0.0120 6,103.00 0.90 0.00
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
6,105.00 60.00 2.00:1 2.00:1 0.01
Pond Results:
Peak Elevation: 6,102.13 ft
Kgraph Detention Time: 2.56 hrs
Pond Model: CSTRS
Dewater Time: 1.12 days
Trap Efficiency: 65.64
Dewatering time is calculated from peak stage to lowest spillway
•
E
Elevation-Capacity-Discharge Table

Elevation Area

(ac) Capacity

(ac-ft) Discharge

(Cfs) Dewater
Time
(hrs)
6,098.00 0.170 0.000 0.000 Top of Sed. Storage
6,098.50 0.210 0.095 0.000
6,099.00 0.260 0.212 0.000
6,099.50 0.300 0.352 0.000
6,100.00 0.350 0.514 0.000
6,100.50 0.370 0.694 0.000 Spillway #1
6,101.00 0.390 0.884 0.747 15.40
6,101.50 0.420 1.087 1.868 7.75
6,102.00 0.440 1.302 3.321 2.75
6,102.13 0.445 1.361 3.608 0.95 Peak Stage
6,102.50 0.460 1.527 4.404
6,103.00 0.490 1.764 5.190 Spillway #2
6,103.50 0.510 2.014 6.644
6,104.00 0.530 2.274 8.361
6,104.50 0.560 2.547 10.477
6,105.00 0.590 2.834 12.012 Spillway #3
6,105.50 0.610 3.134 14.054
6,106.00 0.640 3.447 16.012
6,106.50 0.660 3.771 22.013
13
Filename: RPE(expanded).sc4
Printed 10-23-2008