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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14
I •
Stability
Class D w/o
Freeboard Stability
Class-D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
X-Section Area: 1.19 sq R 3.05 sq R
Hydraulic Radius: 0.178 0.351
Froude Number: 0.59 0.16
Roughness Coefficient: 0.0887 0.3580
Structure #19 (Vegetated Channe/~
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
LeR
Bottom Right
Retardance Freeboard Freeboard Freeboard Limiting
Sideslope
Width (ft)
i Sideslope Slope (%)
Classes Mult. x
Depth (ft) % of Depth Velocity
o
Rat Ratio (VxD) (fPs)
5.00 3.0:1 5.0:1 4.3 D, B 0.30 5.0
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: 3.26 cfs 3.26 cfs
Depth: 0.31 ft 0.61 R 0.64 R 0.94 R
Top Width: 7.51 ft 9.91 ft 10.11 ft 12.51 ft
Velocity: 1.66 fps 0.68 fps
X-Section Area: 1.96 sq R 4.83 sq ft
Hydraulic Radius: 0.259 0.470
Froude Number: 0.57 0.17
Roughness Coeff cien[: 0.0754 0.2764
Structure #IS (Erodib/e Channe/J
Trapezoidal Erodible Channel Inputs:
Material: Alluvial silts colloidal
Left
Bottom Right Freeboard Freeboard Freeboard
' Limiting
Sideslope
Width (ft) Sideslope Slope (%) Manning
s n Mult. x Velocity
Ratio Ratio Depth (R) % of Depth (VxD) (fps)
6.00 3.0:1 5.0:1 10.6 0.02501 0.30 5.0
• Erodible Channel Results:
Filename: RP-5a terrace - f nal conf gura[ion.sc4
Printed 07-28-2004