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
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Left Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%)
Width (ft) Mult. x
Depth (ft) % of Depth
Ratio Ratio (VxD)
12.00 3.0:1 3.0:1 8.1 i 2.00
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Structure #6 69rap Channe/1
15+00 to 32+00 & 50+00- West Trib
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 1.5 2.00
Riprap Channel Results:
PADER Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge:
25.80 cfs
Depth:
0.24 ft 2.24 ft
Top Width:
13.47 ft 25.47 ft
Velocity*:
3.97 fps
X -Section Area:
3.11 sq ft
Hydraulic Radius:
0.230 ft
Froude Number*:
Manning's n*:
Dmin:
2.00 in
D50:
6.00 in
Dmax:
7.50 in
Velocity and Manning's n calculations may not apply for this method.
Structure #6 69rap Channe/1
15+00 to 32+00 & 50+00- West Trib
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 1.5 2.00
Riprap Channel Results:
PADER Method - Steep Slope Design
Filename TR -117 Post Mining 25 YR 24 HR.sc4
10
Printed 11-10-2017
w/o Freeboard w/ Freeboard
Design Discharge:
37.56 cfs
Depth:
0.67 ft 2.67 ft
Top Width:
16.05 ft 28.05 ft
Velocity:
3.97 fps
X --Section Area:
9.45 sq ft
- ---------------
Hydraulic Radius:
0.581 ft
Filename TR -117 Post Mining 25 YR 24 HR.sc4
10
Printed 11-10-2017