2014-09-22_PERMIT FILE - C1996083A ‎(2)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 9/22/2014
• Doc Name: Appendix B - Protection of Hydrologic Balance
• Section_Exhibit Name: Volume XI Coal Mine Waste Disposal Area No. 3
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
!`nn. minld 100A _7!1111 De.nnla 1 Cnhuieh
Structure Detail;
Structure #16 (Erodible Channel)
DITCH J14
Triangular Erodible Channel Inputs:
Material: Alluvial silts colloidal
Left Right -
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n
--
Velocity (fps)
Ratio Ratio
Depth (ft) °r6 of Depth Mult. x (VxD)
-
Velocity:
1.5:1 1.5:1 5.0 0.0250
0.30
5.0
Erodible Channel Results:
Filename: Pond J-10 Year Event 013014,sc4
1
Printed 02-04 -2014
TR -84 Volume XI, App. B -23 02/14
W/o Freeboard w/ Freeboard
Design Discharge:
1.49 cis
Depth:
0.47 ft 0.77 ft
Top Width:
- -
1.41 ft 2.31 ft
-
Velocity:
4.49 fps
X- Section Area:
0.33 sq ft
Hydraulic Radius:
0.196 ft
Froude Number:
1.63
Filename: Pond J-10 Year Event 013014,sc4
1
Printed 02-04 -2014
TR -84 Volume XI, App. B -23 02/14