2014-10-07_PERMIT FILE - C1981018 ‎(2)‎

• Permit No: C1981018
• IBM Index Class Name: Permit File
• Doc Date: 10/7/2014
• Doc Name: B-Seam Dewatering System
• Section_Exhibit Name: Illustration 55
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
I Cnh...eK
16
Structure #4 (Pond
Last Chance Pond
Pond Inputs:
Pond Results:
Initial Pool Elev: 10.00 ft
Initial Pool: 1.22 ac -ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
11.00 10.00 3.00:1 3.00:1 2.00
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
11.00 10.00 3.00:1 3.00:1 2.00
Peak Elevation: 10.88 ft
Dewater Time: 1.55 days
De watering time is calculated from peak stage to lowest spillway
Elevation - Capacity- Discharge Table
Elevation
w/o Freeboard w/ Freeboard
Design Discharge:
0.95 cfs
Depth:
Top Width:
Velocity:
X- Section Area:
0.10 ft
4.61 ft
2.18 fps
0.44 sq ft
Hydraulic Radius:
0.094 ft
Froude Number:
1.25
Initial Pool Elev: 10.00 ft
Initial Pool: 1.22 ac -ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
11.00 10.00 3.00:1 3.00:1 2.00
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
11.00 10.00 3.00:1 3.00:1 2.00
Peak Elevation: 10.88 ft
Dewater Time: 1.55 days
De watering time is calculated from peak stage to lowest spillway
Elevation - Capacity- Discharge Table
Elevation
Area
(ac)
Capacity
(ac -ft)
Discharge Dewater
Time
(cfs) (hrs)
0.00
0.000
0.000
0.000
0.01
0.000
0.000
0.000
0.05
0.001
0.000
0.000
0.10
0.002
0.000
0.000
0.15
0.003
0.000
0.000
0.20
0.004
0.000
0.000
0.25
0.005
0.001
0.000
0.30
0.007
0.001
0.000
Filename: Dewatering Model - 25yr 2014 expansion.sc4
Printed 09 -15 -2014