PERMFILE138818

• Permit No: C1981018
• IBM Index Class Name: Permit File
• Doc Date: 10/13/2004
• Doc Name: Post-Reclamation Refuse Area Runoff and Sedimentology Calculations
• Section_Exhibit Name: Illustration 49
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
c,.~,,.t~m +°°a a„~oi~ i en,..,~~.
I •
22

Bottom LeR Right Freeboard Freeboard Freeboard

Width (ft)} Sideslope Sideslope Slope (%) Mult.x
Ratio Ratio Depth (ft) % of Depth (VxD)
6.00 3.0:1 3.0:1 13.6 0.30
Riprap Channel Results:
PADER Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 16.86 cfs
Depth: 0.41 R 0.71 ft
Top Width: 8.44 ft 10.24 ft
Velocity: 5.73 fps
X-Section Area: 2.94 sq ft
Hydraulic Radius: 0.343
Froude Number: 1.71
Manning's n: 0.0470
Dmin: 2.00 in
D50: 3.00 in
Dmax: 4.50 in
• Structure #3 (~e~tated Channe/J
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Left
Bottom Right
Retardance Freeboard Freeboard Freeboard Limiting
Width (ft) Sideslope Sideslope Slope (%) Classes o Mult. x
Depth (ftj /o of Depth Velocity
f
Ratio Ratio NxD) (
ps)
10.00 3.0:1 3.0:1 3.3 ~ D, B 0.30 5.0
Vegetated Channel Results:
Stability
Class D w(o
Freeboard Stability
Class D wJ
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 16.86 cfs 16.86 cfs
Depth: 0.50 ft 0.80 ft 0.89 R 1.19 ft
Top Width: 13.02 ft 14.82 R 15.32 ft 17.12 ft
Velocity: 2.91 fps 1.50 fps
X-Section Area: 5.80 sq ft 11.23 sq R
Hydraulic Radius: 0.440 0.719
Froude Number: 0.77 0.31
Roughness Coefficient: 0.0541 0.1452
Filename: RP-Sa terrace-foal confguration.sc4
Printed 07-28-2004