PERMFILE113053

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 9/2/2004
• Doc Name: Attachment 10 to 12
• Section_Exhibit Name: Exhibit 7 Streeter Pond - 001A
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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14
Structure #6 (Nu/l1
Structure #7 Lond)
Pond Inputs:
Initial Pool Elev: 6,583.00
Initial Pool: 2.60 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 20.00
*No sediment capacity defined
Perforated Riser
Riser Riser Height Barrel Barrel Barrel Slope Number of
'
Diameter (ft) Diameter Length (ft) (%) Manning
s n Spillway Elev Holes per
(in) (in) Elev
12.00 3.70 18.00 250.00 4.50 0.0240 6,585.00 2
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
6,588.00 50.00 1.50:1 1.50:1 20.00
•
Pond Results:
Peak Elevation: 6,590.75
H'graph Detention Time: 2.95 hrs
Pond Model: CSTRS
Dewater Time: 2.83 days
Trap EfFciency: 27.82
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)
6,578.00 0.012 O.OOD 0.000 Top of Sed. Storage
6,578.50 0.036 0.011 0.000
6,579.00 0.071 0.037 0.000
6,579.50 0.173 0.097 0.000
6,580.00 0.322 0.218 0.000
6,580.50 0.413 0.402 0.000
6,581.00 0.517 0.634 0.000
6,581.30 0.692 0.814 0.000
Filename: Streeter-FreeboardDesign.srA
Printed 07-16-2002