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
Width (ft) Sideslope Sideslope Slope (%)
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
8.00 3.0:1 3.0:1 5.5
1.42 ft
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #18 (Null
Null
Structure #17 (Riprap Channel)
ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
134.83 cfs
Depth:
1.42 ft
Top Width:
16.53 ft
Velocity:
7.73 fps
X -Section Area:
17.44 sq ft
Hydraulic Radius:
1.026 ft
Froude Number:
1.33
Manning's n:
0.0460
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #18 (Null
Null
Structure #17 (Riprap Channel)
ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope (%)
Ratio Ratio(ft)
Depth % of Depth Mult. x (VxD)
8.00 3.0:1 3.0:1 5.5
1.42 ft
Riprap Channel Results:
PADER Method - Steep Slope Design
a
Filename Rev 3 PR04 East Side Ponds sed EOM 1024.sc4 Printed 02-13-2016
Exh. 7-23I-73 Revision Date: 2/15/2016
Revision No.: PR -04
w/o Freeboard w/ Freeboard
Design Discharge:
134.83 cfs
Depth:
1.42 ft
Top Width:
16.53 ft
Velocity:
7.73 fps
a
Filename Rev 3 PR04 East Side Ponds sed EOM 1024.sc4 Printed 02-13-2016
Exh. 7-23I-73 Revision Date: 2/15/2016
Revision No.: PR -04