2018-01-31_PERMIT FILE - C1981019A ‎(8)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 1/31/2018
• Doc Name: West Taylor Sedimentation Pond
• Section_Exhibit Name: Exhibit 07 Item 20 Part C -ST
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
rnwinhf 1QQR-9nin P ---in i Crhwah
Structure Detail;
Structure #5 (Riprap Channel
West Taylor East Tr/b Ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%) Mult. x
Width (ft) Ratio Ratio Depth (ft) % of Depth (VxD)
12.00 3.0:1 3.0:1 26.0
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #4 (R/pray Channel)
West Taylor West Trib Ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%) Mult. x
Width (ft) Ratio Ratio Depth (ft) % of Depth
(VxD)
12.00 3.0:1 3.0:1 26.0
Riprap Channel Results:
Filename: TR -117 Active Mining 25 YR 24 HR.sc4
5
Printed 11-10-2017
w/o Freeboard w/ Freeboard
Design Discharge:
4.53 cfs
Depth:
0.11 ft
Top Width:
12.68 ft
Velocity:
3.23 fps
X -Section Area:
1.40 sq ft
Hydraulic Radius:
0.110 ft
Froude Number:
1.71
Manning's n:
0.0540
Dmin:
1.00 in
D50:
1.50 in
Dmax:
3.00 in
Structure #4 (R/pray Channel)
West Taylor West Trib Ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%) Mult. x
Width (ft) Ratio Ratio Depth (ft) % of Depth
(VxD)
12.00 3.0:1 3.0:1 26.0
Riprap Channel Results:
Filename: TR -117 Active Mining 25 YR 24 HR.sc4
5
Printed 11-10-2017