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
14
Structure #6 (Null)
Structure #7 (Pond1
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 Barre! garret 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 6,565.00 2
Emergency Spillway
Spillway Elev Crest Length Lett Right Bottom
(ft) Sideslope Sideslope Width (ft)
6,588.00 50.00 1.50:1 1.50:1 20.00
Pond Results:
Peak Elevation: 6,568.83
H'graph Detention Time: 7.74 hrs
Pond Model: CSTRS
Dewater Time: 2.74 days
Trap Efficienty: 41.94
Dewatering time is calculated from peak stage to lowest spi/lway
Elevation-Capacity-Discharoe Table

Elevation Area

(ac) Capacity

(ac-ft) Discharge Dewater
Time
(cfs) (hrs)
6,578.00 0.012 0.000 O.OOD 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-SpillwayDesign.sc4 Printed D7-15-2002