PERMFILE102711

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 8/12/2005
• Doc Name: As-Built Report Pond 012
• Section_Exhibit Name: Tab 13 Attachment 13-12A
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
•
Structure #1 (Ponce
Pond 12
Pond Inputs:
Structure Detai/:
Initial Pool Elev: 7,251.00
Initial Pool: 3.74 ac-R
*sediment Storage: 9.32 ac-R
Dead Space: 20.00
*Sediment capacity based on Average Annual R of 10.0 for 2 year(s)
Perforated Riser
Riser Riser Height Barrel Barrel Barrel Slope Number of
'
Diameter Diameter Manning
s n Spillway Elev Holes per
(R)
(in) Length (ft) (%)
(in) Elev
30.00 5.00 24.00 102.00 5.00 0.0240 7,253.00 3
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
• (R) sideslope sideslope Width (ft)
7,257.00 50.00 3.00:1 3.00:1 15.00
Pond Results:
Peak Elevation: 7,255.54
H'graph Detention Time: 3.92 hrs
Pond Model: CSTRS
Dewater Tme: 2.25 days
Trap Efficiency: 62.74
Dewatering time is ca/culated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
•

Elevation Area

(ac) Capacity

(ac-R) Discharge

(~s) Dewater
Time
(hm)
7,247.33 0.918 0.000 0.000 Top of Sed. storage
7,247.50 0.927 0.156 0.000
7,248.00 0.953 0.626 0.000
7,248.50 0.980 1.110 0.000
7,249.00 1.007 1.607 0.000
7,249.50 1.035 2.117 0.000
Filename: Pond 12.sc4 Printed OS-06-2005