2016-05-03_PERMIT FILE - C1981008 (8)

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SEDCAD 4 for Windows Structure #3 (Erodible Channel) Postmine channel below TW Ditch Trapezoidal Erodible Channel Inputs: Material: Cobbles and shingles Bottom Left Right Stability Class D w/o Freeboard Stability Class D w/ Freeboard Capacity Class B w/o Freeboard Capacity Class B w/ Freeboard Design Discharge: 5.73 cfs 8.92 ft 10.72 ft 5.73 cfs 3.00 3.0:1 3.0:1 2.2 0.0350 Depth: 1.23 ft 1.53 ft 2.18 ft 2.48 ft Top Width: 6.92 ft 8.12 ft 10.72 ft 11.92 ft Velocity: 1.05 fps 0.41 fps X -Section Area: 5.48 sq ft 13.88 sq ft Hydraulic Radius: 0.731 ft 1.181 ft Froude Number: 0.21 0.06 Roughness Coefficient: 0.0633 0.2206 Structure #3 (Erodible Channel) Postmine channel below TW Ditch Trapezoidal Erodible Channel Inputs: Material: Cobbles and shingles Bottom Left Right Freeboard Freeboard Freeboard Limiting Width (ft) Sideslope Sideslope Slope (%) Manning's n Depth (ft) / of Depth Mult. x (VxD) Velocity Ratio Ratio 8.92 ft 10.72 ft (fps) 3.00 3.0:1 3.0:1 2.2 0.0350 0.30 5.0 Erodible Channel Results: Structure #2 (Pond) Pond 016 Pond Inputs: Initial Pool Elev: 5,614.00 ft Initial Pool: 1.26 ac -ft Emergency Spillway Spillway Elev Crest Length Left Right Bottom (ft) Sideslope Sideslope Width (ft) 5,618.00 20.00 3.00:1 3.00:1 20.00 7 Filename: NH2 Pond 016 100 24.sc4 Printed 12-27-2015 Attachment 2.05.3(3)-29 Revision Date: 1/08/2016 PaLye 29 Revision No.: TR -70 w/o Freeboard w/ Freeboard Design Discharge: 27.47 cfs Depth: 0.99 ft 1.29 ft Top Width: 8.92 ft 10.72 ft Velocity: 4.67 fps X -Section Area: 5.88 sq ft Hydraulic Radius: 0.636 ft Froude Number: 1.01 Initial Pool Elev: 5,614.00 ft Initial Pool: 1.26 ac -ft Emergency Spillway Spillway Elev Crest Length Left Right Bottom (ft) Sideslope Sideslope Width (ft) 5,618.00 20.00 3.00:1 3.00:1 20.00 7 Filename: NH2 Pond 016 100 24.sc4 Printed 12-27-2015 Attachment 2.05.3(3)-29 Revision Date: 1/08/2016 PaLye 29 Revision No.: TR -70