2004-09-02_PERMIT FILE - C1981019A ‎(4)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 9/2/2004
• Doc Name: Attachment 10 to 12
• Section_Exhibit Name: Exhibit 07 Gossard Pond - 003A
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Cnrnninh1100f! Pamcb 1 Crhumh
6
•
Structure Detai/;
Structure #i (Pond)
Pond Inputs:
Initial Pool Elev: 6,389.05 ~~
Initial Pool: 1.56 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 20.00
*No sediment capacity defined
Fixed Siphon
Crest Elev Inlet Elev Outlet Elev Diameter Length (ft) Manning's n
(in)
6,391.00 6,389.05 6,385.80 6.00 162.00 0.0140
Straight Pike

Barrel Barrel Entrance Tailwater
Barrel Manning's Spillway
Diameter Length Loss Depth
Slope (%) n Elev
(in) (ft) Coefficient (ft)
30.00 155.00 4.001 0.0140 6,392.701 0.90 2.00
Pond Results:
Peak Elevation: 6,391.62
H'graph Detention Time: 9.16 hrs
Pond Model: CSTRS
Dewater Time: 1.16 days
Trap Efficiency: 78.68
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharq_e Table
.,
..
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (crs) (hrs)
6,384.90 0.010 0.000 0.000 Top of Sed. Storage
6,385.40 0.060 0.016 0.000
6,385.90 0.151 0.067 0.000
6,386.40 0.285 0.174 0.000
6,366.90 0.460 0.359 0.000
6,387.40 0.505 0.600 0.000
Filename: Gossard-100yr.sc4 Printed OS-11-2002