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
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Material: Smooth brome
10
Left Right
Bottom Reta rda nce
Freeboard
Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%)
Width (ft) Ratio Ratio Classes
Mult. x
Depth (ft) % of Depth
Velocity
(fps)
Class D w/
(VxD)
Elev
12.00 2.0:1 2.0:1 5.0 D, B
Freeboard
7.0
Vegetated Channel Results:
Structure #7 (Null
Structure #6 (Pond.
Sidehill Pond
Pond Inputs:
Initial Pool Elev:
Stability
Stability
Capacity Capacity
*Sediment Storage:
Class D w/o
Class D w/
Class B w/o Class B w/
Elev
Freeboard
Freeboard
Freeboard Freeboard
Design Discharge:
21.35 cfs
21.35 cfs
Depth:
0.46 ft
0.78 ft
Top Width:
13.82 ft
15.12 ft
Velocity:
3.63 fps
2.02 fps
X -Section Area:
5.89 sq ft
10.56 sq ft
Hydraulic Radius:
0.419 ft
0.682 ft
Froude Number:
0.98
0.43
Roughness Coefficient:
0.0513
0.1277
Structure #7 (Null
Structure #6 (Pond.
Sidehill Pond
Pond Inputs:
Initial Pool Elev:
7,167.00 ft
Initial Pool:
4.02 ac -ft
*Sediment Storage:
0.00 ac -ft
Dead Space:
20.00%
*No sediment capacity defined
Emergency Spillwax
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
7,172.00 40.00 2.00:1 2.00:1 20.00
Perforated Riser
Riser
Riser Height
Barrel
� Barrel Barrel Slope
Number of
Spillway Elev
Diameter (ft)
Diameter Length (ft) (%)
Manning's n (ft) Holes per
(in)
(in)
Elev
18.00 5.50 18.00 125.00 2.10
0.0240 7,170.00 2
Filename: PR04 West Side Ponds 1024 rev2.sc4 Printed 07-30-2015
Exh. 7-23C-24 Revision Date: 07/31/2015
Revision No.: PR -04