2001-12-11_PERMIT FILE - C1996084A

• Permit No: C1996084A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Exhibit 15-11 Fill 9 SEDIMENT CONTROL POND 009
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Copynghl 1998 Pamela J. Schwab
Civil SoMvare Design
w/o Freeboard w/ Freeboard
• Hydraulic Radius: 0.688
Froude Number: 0.96
Structure #3 (Null
D98
Structure #4 (Pond)
Pond
Pond Inputs:
Initial Pool Elev: 6,898.00
Initial Pool: 0.26 ac-R
'Sediment Storage: 0.44 ac-R
Dead Space: 20.00
*Sediment capacity based on Average Annual R of 70.0 for 3 year(s)
Perforated Riser
•
Riser Riser Height Barrel garret Barrel Slope Number of
'
Diameter (R) Diameter Length (R) (%) Manning
s n Spillway Elev Holes per
(in) (in) Elev
8.00 12.00 6.00 80.00 1.00 0.0240 6,904.00 1
Pond Results:
Peak Elevation: 6,904.60
H'graph Detention Time: 13.31 hrs
Pond Model: CSTRS
Dewater Time: 3.98 days
Trap Effciency: 89.44 "/o
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table

Elevation Area

(ac) Capacity

(ac-R) Discharge

(cfs) Dewater
Time
(hrs)
6,896.92 0.239 0.000 0.000 Top of Sed. Storage
6,897.00 0.240 0.018 0.000
6,897.50 0.245 0.139 0.000
6,898.00 0.250 0.263 0.000 Low hole SPW # 1
6,898.50 0.255 0.389 0.074 20.55'
6,899.00 0.260 0.518 0.105 14.82'
Filename: Pond9-10t1 heighl.so4 Printed 07-26-2001