2008-03-03_PERMIT FILE - C2006085A ‎(4)‎

• Permit No: C2006085A
• IBM Index Class Name: Permit File
• Doc Date: 3/3/2008
• Doc Name: Drainage and Sediment Control Plan
• Section_Exhibit Name: Exhibit V
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
(:nnvrinh4 900R _9M9 Pamch I Crh~.,oh
5
Structure Detai/;
Structure #1 (Pond
Sediment Pond I/o/ume
Pond Inputs:
Initial Pool Elev: 5,394.00 ft
Initial Pool: 1.74 ac-ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
5,394.00 28.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 5,394.82 ft
Dewater Time: 3.03 days
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table

Elevation Area

(ac) Capacity

(ac-ft) Discharge

(cfs) Dewater
Time
(ham)
5,391.50 0.630 0.000 0.000
5,392.00 0.660 0.322 0.000
5,392.50 0.685 0.659 0.000
5,393.00 0.710 1.007 0.000
5,393.50 0.735 1.369 0.000
5,393.90 0.755 1.667 0.000
5,394.00 0.760 1.742 0.000 Spillway #1
5,394.10 0.766 1.819 0.032 28.59*
5,394.20 0.772 1.896 0.065 14.41*
5,394.50 0.790 2.130 0.161 17.55*
5,394.82 0.809 2.387 15.797 12.15 Peak Stage
5,395.00 0.820 2.532 24.669
5,395.50 0.845 2.949 56.242
5,396.00 0.870 3.377 96.142
*Designates time(s) to dewater have been extrapolated beyond the So hour hydrograph limit.
Filename: 25yr-24hr Sediment Pond Spillway.sc4 Printed 05-08-2007