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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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 8.1 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 (Riprap Chann
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
Design Discharge:
Depth:
Top Width:
Velocity:
X -Section Area:
w/o Freeboard w/ Freeboard
10.17 cfs
0.31 ft 2.31 ft
13.88 ft 25.88 ft
2.50 fps —
4.07 sq ft -
13
Filename TR -117 Post Mining 10 YR 24 HR.sc4 Printed 11-10-2017
w/o Freeboard w/ Freeboard
Design Discharge:
4.38 cfs
Depth:
0.07 ft 2.07 ft
Top Width:
12.43 ft 24.43 ft
Velocity*:
--------
X-Section Area:
0.88 sq ft
Hydraulic Radius:
0.071 ft
Froude Number*:
Manning's n*:
Dmin:
1.00 in
D50:
3.00 in
Dmax:
3.75 in
Velocity and Manning's n calculations may not apply for this method.
Structure #6 (Riprap Chann
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
Design Discharge:
Depth:
Top Width:
Velocity:
X -Section Area:
w/o Freeboard w/ Freeboard
10.17 cfs
0.31 ft 2.31 ft
13.88 ft 25.88 ft
2.50 fps —
4.07 sq ft -
13
Filename TR -117 Post Mining 10 YR 24 HR.sc4 Printed 11-10-2017