2017-07-18_PERMIT FILE - C1981019A ‎(2)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 7/18/2017
• Doc Name: Sediment Control for Initial Disturbance Coal Stockpile Pond Using Total Containment
• Section_Exhibit Name: Volume 18 Exhibit 7, Item 23 Part M
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
5
Structure Detail:
Structure #46 (Null)
Drainage above East Collector Ditch
Structure #45 (Erodible Channel)
East Collector Ditch
Trapezoidal Erodible Channel Inputs:
Material: Shales and hardpans
Bottom Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n
Width (ft)
Depth:
Velocity
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
(fps)
4.00 1.5:1 1.5:1 1.3 0.0250
X -Section Area:
6.0
Erodible Channel Results:
Filename: ECollectorDitch1024.sc4 Printed 05-15-2017
Each. 7-23M-20 Revision Date: 5/18/2017
1? ov+cir�n
XT- • TO -1 1 1
w/o Freeboard w/ Freeboard
Design Discharge:
32.59 cfs
Depth:
1.05 ft
Top Width:
7.15 ft
Velocity:
5.56 fps
X -Section Area:
5.86 sq ft
Hydraulic Radius:
0.753 ft
Froude Number:
1.08
Filename: ECollectorDitch1024.sc4 Printed 05-15-2017
Each. 7-23M-20 Revision Date: 5/18/2017
1? ov+cir�n
XT- • TO -1 1 1