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
I •

10
Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class 6 w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 11.64 6s 11.64 cfs
Depth: 0.61 R 0.91 R 1.05 R 1.35 R
Top Width: 8.00 R 9.95 ft 10.81 ft 12.76 R
Velocity: 3.15 fps 1.50 fps
X-Section Area: 3.69 sq R 7.76 sq ft
Hydraulic Radius: 0.451 0.698
Froude Number: 0.82 0.31
Roughness
Coefficient: 0.0524 0.1477
Structure #9 Neoetated Channel)
North upper above terrace
Trapezoidal Vegetated Channel Inputs:
Material: Grass mixture
Lek Right Freeboard Freeboard Freeboard Limiting
Bottom Retardance Velocity
Width (ft) Sideslope Sideslope Slope (%) Classes Depth (R) % of Depth Mult. x
Ratio Ratio (Vxp) (fps)
8.00 11.4:1 4.0:1 2.5 D, B 0.30 6.C
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: 4.16 ds 4.16 cfs
Depth: 0.33 ft 0.63 R 0.70 R 1.00 ft
Top Width: 13.14 ft 17.76 ft Sn,g3 ft 23.45 R
Velocity: 1.18 fps 0.44 fps
X-Section Area: 3.53 sq R 9.43 sq ft
Hydraulic Radius: 0.268 0.496
Froude Number: 0.40 0.11
Roughness
Coefficient: 0.0830 0.3356
Structure #8 (t/eoetated Chann%~
Northeast
Trapezoidal Vegetated Channel Inputs:
. Material: Grass mixture
Filename: RP-2-3 terrace -foal confguration.sc4 Panted 07-28-2004