2016-08-08_PERMIT FILE - C1981019A ‎(63)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 8/8/2016
• Doc Name: Sedimwent 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
10
Structure #6 (Culvert
Culvert Inputs:
Culvert Results:
Structure Detail:
Max. Entrance
Tailwater
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
200.00 2.00 0.0240 6.00 0.00 0.90
Design Discharge = 50.32 cfs
Minimum pipe diameter: 1 - 36 inch pipe(s) required
Structure #5 (Null,
Structure #4 (Vegetated Channel)
Ditch 5
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
Left Right Freeboard Freeboard Freeboard
Bottom Retardance
Limiting
Sideslope Sideslope Slope (%)
Width (ft) Ratio Ratio Classes Depth (ft) % of Depth Mult. x (VxD)
Velocity
(fps)
12.00 2.0:1 2.0:1 2.0 D, B
7.0
Vegetated Channel Results:
Structure #3 (Null
Structure #2 (Pond
Sec 36 East Pond
Pond Inputs:
Filename: PR04 East Side Ponds 1024.sc4 Printed 03-02-2015
Exh. 7-23C-56 Revision Date: 07/31/2015
Revision No.: PR -04
Stability Stability
Class D w/o Class D w/
Freeboard Freeboard
Capacity Capacity
Class B w/o Class B w/
Freeboard Freeboard
Design Discharge:
56.11 cfs
56.11 cfs
Depth:
0.91 ft
1.39 ft
Top Width:
15.62 ft
17.56 ft
Velocity:
4.48 fps
2.73 fps
X -Section Area:
12.51 sq ft
20.56 sq ft
Hydraulic Radius:
0.780 ft
1.128 ft
Froude Number:
0.88
0.44
Roughness Coefficient:
0.0398
0.0836
Structure #3 (Null
Structure #2 (Pond
Sec 36 East Pond
Pond Inputs:
Filename: PR04 East Side Ponds 1024.sc4 Printed 03-02-2015
Exh. 7-23C-56 Revision Date: 07/31/2015
Revision No.: PR -04