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
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10
Left Right
Bottom Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (°!°)
Width (ft)}
ti
R Mult. x
Depth (ft) % of Depth
Ra
o
atio (VxD)
6.00 3.0:1 7.0:1 13.1 0.30
Riprap Channel Results:
PADER Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 7.49 cfs
Depth: 0.23 R 0.53 ft
Top Width: 8.33 ft 11.33 ft
Velocity: 4.49 fps
X-Section Area: 1.67 sq ft
Hydraulic Radius: 0.199
Froude Number: 1.77
Manning's n: 0.0410
Dmin: 1.00 in
D50: 1.50 in
Dmax: 3.00 in
• Structure #Z ~~egetated Channe/)
Lower channel
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Left Right
Bottom
Retardance Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (°!a)
Classes
Width (ft)
ti Mutt. x
Depth (ft) °k of Depth Velocity
f
o
Ratio Ra NxD) (
ps)
6.00 3.0:1 10.0:1 3.9 D, B 0.30 4.0
Vegetated Channel Results:
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 8.66 cfs 8.66 cfs
Depth: 0.44 ft 0.74 ft 0.82 ft 1.12 ft
Top Width: 11.76 ft 15.66 R 16.71 ft 20.61 ft
Velocity: 2.20 fps 0.93 fps
X-Section Area: 3.93 sq ft 9.36 sq ft
Hydraulic Radius: 0.333 0.556
Froude Number: 0.67 0.22
Filename: RP-4 terrace -final configuration.sc4 Printed 07-28-200A