2017-03-15_PERMIT FILE - C1981008A ‎(2)‎

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 3/15/2017
• Doc Name: Pond 016 As-Built
• Section_Exhibit Name: Section 2.05.3‎(3)‎-36 Attachment 2.05.3‎(3)‎-36
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Vegetated Channel Results:
Structure #3 (Erodible Channel
Postmine Channel Below TW Ditch
Trapezoidal Erodible Channel Inputs:
Material: Cobbles and shinales
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:
0.39 cfs
6.77 ft 8.57 ft
0.39 cfs
3.00 3.0:1 3.0:1 2.2 0.0350
Depth:
0.43 ft
0.73 ft
1.05 ft
1.35 ft
Top Width:
3.72 ft
4.92 ft
6.22 ft
7.42 ft
Velocity:
0.32 fps
0.09 fps
X -Section Area:
1.23 sq ft
4.34 sq ft
Hydraulic Radius:
0.313 ft
0.645 ft
Froude Number:
0.10
0.02
Roughness Coefficient:
0.1178
0.6745
Structure #3 (Erodible Channel
Postmine Channel Below TW Ditch
Trapezoidal Erodible Channel Inputs:
Material: Cobbles and shinales
Bottom Left Right
Freeboard Freeboard Freeboard
Limiting
Width (ft) Sideslope Sideslope Slope (%) Manning's n
Depth (ft) % of Depth Mult. x (VxD)
Velocity (fps)
Ratio Ratio
6.77 ft 8.57 ft
Velocity:
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:
w/o Freeboard w/ Freeboard
Design Discharge:
11.20 cfs
Depth:
0.63 ft 0.93 ft
Top Width:
6.77 ft 8.57 ft
Velocity:
3.65 fps
X -Section Area:
3.07 sq ft
Hydraulic Radius:
0.440 ft
Froude Number:
0.96
Initial Pool Elev:
5,618.50 ft
Initial Pool:
7.20 ac -ft
*Sediment Storage:
0.22 ac -ft
Dead Space:
20.00%
*Sediment capacity based on Average Annual R of 27.0 for 7 year(s)
Filename: NH2 Pond 016 As -Built 10-24 01.30.17.sc4
Attachment 2.05.3(3)-36 Page 15
M
Printed 01-30-2017
February 2017 (TR -78)