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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Lek
Bottom Right
Retardance Freeboard Freeboard Freeboard Limiting

Width k Sideslope
O R
tio
Sideslope Slope (%) Classes
Ratio
o Mult. x
Depth (ft) /° of Depth Veloci
ty
(fps)
a (VxD)
7.50 4.0:1 2.5:1 6.3 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: 16.84 cfs 16.84 6s
Depth: 0.47 ft 0.77 ft 0.80 ft 1.10 k
Top Width: 10.56 k 12.51 k 12.73 ft 14.68 k
Velocity: 3.96 fps 2.07 fps
X-Section Area: 4.25 sq ft 8.14 sq k
Hydraulic Radius: 0.397 0.628
Froude Number: 1.10 0.46
Roughness
Coefficient: 0.0508 0.1318
Structure #7 (t/e4etated Channel)
Be%w terrace north-NE
• Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Lek
Bottom Right Freeboard Freeboard Freeboard
Retardance Limiting
Sideslope
Width (ft) R
ti Sideslope
ti
R Slope (%)
Mult. x
Classes Depth (ft) % of Depth Velocity
s)
(f
a
o a
o (VxD) P
3.00 4.0:1 4.0:1 7.2 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 6 w/
Freeboard
Design Discharge: 0.72 cfs 0.72 cfs
Depth: 0.18 k 0.48 ft 0.41 ft 0.71 R
Top Width: 4.42 ft 6.82 k 6.30 k 8.70 k
Velocity: 1.09 fps 0.37 fps
X-Section Area: 0.66 sq ft 1.92 sq k
Hydraulic Radius: 0.147 0.300
Froude Number: 0.50 0.12
Roughness
Coefficient: 0.1018 0.4782
• Structure #6 (t/eoetated Channel1
11
Filename: RP-2-3 terrace -final configumtion.sc4 Printed 07-28-2004