2016-08-08_PERMIT FILE - C1981019A ‎(115)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 8/8/2016
• Doc Name: Sediment Control System Analysis at End of Mining
• Section_Exhibit Name: Volume 18 Exhibit 7 Item 23 Part I
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Width (ft) Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
12.00 3.0:1 3.0:1 5.0
0.54 ft
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #30 (Riprap Channel)
Lower Deer Draw
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
33.91 cfs
Depth:
0.54 ft
Top Width:
15.23 ft
Velocity:
4.62 fps
X -Section Area:
7.34 sq ft
Hydraulic Radius:
0.476 ft
Froude Number:
1.17
Manning's n:
0.0440
Dmin:
2.00 in
D50:
3.00 in
Dmax:
4.50 in
Structure #30 (Riprap Channel)
Lower Deer Draw
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Width (ft) Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
12.00 3.0:1 3.0:1 20.0
0.39 ft
Riprap Channel Results:
PADER Method - Steep Slope Design
25
Filename: Rev 3 PR04 East Side Ponds sed EOM 1024 sc4 Printed 02-13-2016
Exh. 7-23I-69 Revision Date: 2/15/2016
Revision No.: PR -04
w/o Freeboard w/ Freeboard
Design Discharge:
33.91 cfs
Depth:
0.39 ft
Top Width:
14.35 ft
Velocity:
6.57 fps
X -Section Area:
5.16 sq ft
Hydraulic Radius:
0.357 ft
Froude Number:
1.93
25
Filename: Rev 3 PR04 East Side Ponds sed EOM 1024 sc4 Printed 02-13-2016
Exh. 7-23I-69 Revision Date: 2/15/2016
Revision No.: PR -04