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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Structure #6 [Null)
Structure #7 (Pond1
Pond Inputs:
Initial Pool Elev: 6,563.00
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
Diameter Barrel garret Barrel Slope
Diameter Number of
Manning's n Spillway Elev Holes per
(R)
(in) Length (ft) (°~°)
(in) Elev
12.00 3.70 16.00 250.00 4.50 0.0240 6,585.00 2
Emergency Spillway
• Pond Results:
Spillway Elev Cres[ Length Left Right Bottom
(R) Sideslope Sideslope Width (ft)
6,586.00 50.00 1.50:1 1.50:1 20.00
Peak Elevation: 6,588.38
H'graph Detention Time: 6.91 hrs
Pond Model: CSTRS
Dewater Time: 2.84 days
Trap Efficiency: 45.99
Dewatering time is ca/cu/ated from peak stage to lowest spit/way
Elevation-Capacity-Discharge Table

Elevation Area

(ac) Capacity

(ac-ft) Discharge

(cfs) Dewater
Time
(hrs)
6,578.00 0.012 0.000 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
6,561.30 0.692 0.814 0.000
14
Filename: Streeter-100yr.sc4 Printed 07-16-2002