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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20
I •
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Velocity: 3.90 fps 1.93 fps
X-Section Area: 3.11 sq R 6.31 sq R
Hydraulic Radius: 0.333 0.531
Froude Number: 1.19 0.46
Roughness Coefficient: 0.0538 0.1494
Structure #7 (V'e4etated Channel)
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Left Right
Retardance
Bottom Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%)
Width (ft)
Classes Mult. x
Depth (ft) % of Depth
Velocity
Rato Ratio (VxD) (fPs)
6.00 5.0:1 30.0:1 4.6 D, B 0.30 5.0
Vegetated Channel Results:
i •
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 13,06 cfs 13.06 cfs
Depth: 0.45 ft 0.75 ft 0.82 ft 1.12 ft
Top Width: 21.92 ft 32.42 ft 34.80 ft 45.30 ft
Velocity: 2.06 fps 0.78 fps
X-Sec[ion Area: 6.35 sq ft 16.79 sq ft
Hydraulic Radius: 0.289 0.482
Froude Number: 0.67 0.20
Roughness Coefficient: 0.0683 0.2535
Structure #6 (t/eoetated Channe/)
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Left Right
Bottom Retardance Freeboard
Freeboard Freeboard Limiting
Width (ft) Sideslope Sideslope Slope (%) Classes
Ratio Ratio o Mult. x
Depth (ft) /o of Depth Velocity
s)
(f
(Vx0) p
6.00 5.0:1 3.0:1 3.1 D, B 0.30 5.0
Vegetated Channel Results:
Filename: RP-5a terrace -final configuration.srA
Printed 07-28-2004