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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12
I • Be%w terrace north-NW
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Left
Bottom Right Freeboard Freeboard Freeboard
Retardance limiting
Width (R) Sideslope
tio
R Sideslope Sfope (%) Grasses Depth (ft) %of Depth Mull. x
Ra[i Velocity
s)
(f
a o (VxD) p
3.00 4.0:1 4.0:1 10.0 D, B 0.30 ~ 4.0
Vegetated Channel Results:
•
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class 8 w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 0.54 cfs 0.54 cfs
Dep[h: 0.14 ft 0.44 R 0.34 ft 0.64 R
Top Width: 4.14 ft 6.54 ft 5.74 ft 8.14 ft
Velocity: 1.05 fps 0.36 fps
X-Section Area: 0.51 sq R 1.50 sq ft
Hydraulic Radius: 0.122 0.257
Froude Number: 0.53 0.12
Roughness
Coefficient: 0.1090 0.5294
Structure #5 (vegetated Channell
Be%w terrace north-NW
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture

Left
Bottom Freeboard
Right Freeboard Freeboard
Retardance
Limiting

Widest (R) Sideslope
Ratio
Sideslope Slope (%) CJesses De th R % of Depth Mult. x
Ratio p (} Veloci
ty ',.
(fps}
(Vx0)
4.00 3.0:1 4.0:1 5.8 D, B 0.30 ~ 4.0'
Vegetated Channel Results:

Stability
Class D w/o
Freeboard Stability
Crass D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 1.80 cfs 1.80 cfs
Depth: 0.25 R 0.55 ft 0.53 ft 0.83 R
Top Width: 5.73 R 7.83 ft 7.69 ft 9.79 ft
Velocity: 1.50 fps 0.58 fps
X-Section Area: 1.20 sq ft 3.08 sq ft
Hydraulic Radius: 0.207 0.393
Filename: RP-2-3 terrace -foal confguration.sc4
Printed 07-28-2004