PERMFILE111059

• Permit No: C1996084A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 15 FILL 8 Sediment Control Pond 008
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Copyright 1998 Pamela J. Schwab
Crvl Software Devgn
•
Structure Detai/:
Structure #.3 (Pond)
Pond Inputs:
Initial Pool Elev: 6,793.00
Initial Pool: 0.62 ac-f[
*Sediment Storage: 1.00 ac-ft
Dead Space: 5.00
*Sediment capacity was entered by user
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
6,804.99 29.00 2.50:1 2.50:1 16.00
Perforated Riser
u
Riser Riser Height Barrel Barrel Barrel Slope Number of
'
Diameter (tt) Diameter Length (ft) (%) Manning
s n Spillway Elev Holes per
(in) (in) Elev
12.00 13.00 10.00 100.00 1.00 0.0290 6,804.00 4
Pond Results:
Peak Elevation: 6,805.42
H'graph Detention Time: 12.88 hrs
Pond Model: CSTRS
Dewater Time: 8.87 days
Trap Efficiency:. 90.52
Dewatering time is calcu/aced from peak stage to lowest spillway
Elevation-Capacity-Discharge Table

Elevation Area

(ac) Capacity

(ac-tt) Dixharge

(~s) Dewater
Tme
(hrs)
6,791 .90 0. 549 0.000 0.000 Top of Sed. Storage
6,792. 00 0. 551 0.056 0.000
6,792. 50 ~ 0. 563 0.335 0.000
6,793. 00 0. 575 0.619 0.000 Low hole SPW #2
6,793. 50 0. 587 0.909 0.074 47.30'
6,794. 00 0. 599 1.206 0.105 34.15•
6,794. 50 0. 611 1.508 0.203 18.04*
rrlR -fl1S
Filename: PondMK8a26.sc4 Printed 11-01-2001