PERMFILE132753

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 15 FILL 2 SEDIMENT CONTROL POND 002
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Copyright 1998 Pamela J. Schwab
Civil Software Design
•
Structure Detai/;
Structure #2 (Nul1~
Structure #1 (Null
Structure #3 (Pond)
Pond Inputs:
initial Pool Elev: 6,876.50
Initial Pool: 0.78 ac-ft
'Sediment Storage: 4.18 ac-ft
Dead Space: 20.00
*Sediment capacity based on Average Annual R of 70.0 for 1 year(s)
Perforated Riser
Riser Riser Height Barrel Barrel Barrel Slope Number of
'
muter eft) Di (ne
ter Le\gth (ft) ~%) Manning
s n Spillway Elev Ho
Per
( s Ele
12.00 9.00 ~ 10.00 100.00 1.00 0.0240 6,684.00 2
• Pond Results:
Peak Elevation: 6,884.94
H'graph Detention Time: 13.82 hrs
Pond Motlel: CSTRS
Dewater Time: 5.90 days
Trap Efficiency: 80.29
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
r1
LJ

Elevation Area

(ac) Capacity

(ac-ft) Discharge

(~s) Dewater
Tme
(hrs)
6,875.53 0.802 0.000 0.000 Top of Sed. Storage
6,876.00 0.810 0.375 0.000
6,876.50 0.818 0.782 0.000 Low hole SPW 111
6,877.00 0.827 1.194 0.149 33.51'
6,877.50 0.836 1.610 0.210 23.94"
6,878.00 0.845 2.030 0.406 12.52"
6,876.50 0.853 2.454 0.507 10.13"
6,679.00 0.862 2.883 0.738 7.03'
Filename: Pond2rev.sc4 Printed 07-23-2001