2018-01-31_PERMIT FILE - C1981019A ‎(8)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 1/31/2018
• Doc Name: West Taylor Sedimentation Pond
• Section_Exhibit Name: Exhibit 07 Item 20 Part C -ST
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Structure #9 LPond1
ETD -1 Stock Pond
Pond Inputs:
Pond Results:
Velocity and Manning's n calculations may not apply for this method.
Initial Pool Elev: 100.00 ft
Initial Pool: 2.01 ac -ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
100.00 20.00 2.00:1 2.00:1 20.00
Peak Elevation: 101.10 ft
Dewater Time: 0.69 days
Dewatering time is calculated from peak stage to lowest sail/way
Elevation -Capacity -Discharge Table
Elevation
w/o Freeboard w/ Freeboard
Design Discharge:
62.47 cfs
Depth:
0.56 ft 2.56 ft
Top Width:
15.36 ft 27.36 ft
Velocity*:
0.050
X -Section Area:
7.67 sq ft
Hydraulic Radius:
0.494 ft
Froude Number*:
0.000
Manning's n*:
0.072
Dmin:
2.00 in
D50:
6.00 in
Dmax:
7.50 in
Velocity and Manning's n calculations may not apply for this method.
Initial Pool Elev: 100.00 ft
Initial Pool: 2.01 ac -ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
100.00 20.00 2.00:1 2.00:1 20.00
Peak Elevation: 101.10 ft
Dewater Time: 0.69 days
Dewatering time is calculated from peak stage to lowest sail/way
Elevation -Capacity -Discharge Table
Elevation
Area
(ac)
Capacity
(ac -ft)
Discharge Dewater
Time
(cfs) (hrs)
90.00
0.050
0.000
0.000
90.10
0.050
0.005
0.000
90.50
0.060
0.027
0.000
91.00
0.072
0.060
0.000
91.50
0.084
0.099
0.000
92.00
0.098
0.144
0.000
Filename: TR -117 Post Mining 25 YR 24 HR.sc4 Printed 11-10-2017