2018-04-02_PERMIT FILE - C1981019A ‎(20)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 4/2/2018
• Doc Name: Sediment Pond and Associated Modeling During Mining
• Section_Exhibit Name: Volume 18 Exhibit 7 Item 23 Part C
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
!`nn..r�n H1 1004 _7l11 11 D�mnle I CrL..uel+
Structure Detail;
Structure #11 (Vegetated Channe/�
D2 Ditch
Trapezoidal Vegetated Channel Inputs:
Material: Tall fescue
Bottom
Left Right Retardance Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Mult. x Velocity
Width (ft) Ratio Ratio Classes Depth (ft) % of Depth
(VXD) (fps)
12.00 2.0:1 2.0:1 4.9 D, B 7.0
Vegetated Channel Results:
Design Discharge:
Depth:
Top Width:
Velocity:
X -Section Area:
Hydraulic Radius:
Froude Number:
Roughness
Coefficient:
Stability Stability
Class D w/o Class D w/
Freeboard Freeboard
10.52 cfs
0.34 ft
13.36 ft
2.44 fps
4.31sgft-- -
0.319 ft
0.76
0.0630
Capacity Capacity
Class B w/o Class B w/
Freeboard Freeboard
10.52 cfs
0.64 ft -
14.54 ft
1.25 fps
8.44 sq ft
0.569 ft
0.29 ------
0.1812
Structure #6 (Vegetated Channel
D6 Ditch
Trapezoidal Vegetated Channel Inputs:
Material: Kentucky bluegrass
Bottom
Left Right Retardance Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Mult. x Velocity
Width (ft) Ratio Ratio Classes Depth (ft) % of Depth (VxD) (fps)
20.00 2.0:1 2.0:1 5.9 D, B 6.0
Vegetated Channel Results:
Filename: West Side Temp Spoil Pile Model 10yr24hr.sc4
Page Exh. 7-23C-21
7
Printed 01-17-2018
Revision Date: 1/19/18
Revision No.: TR -118