2011-03-25_PERMIT FILE - C1981019A ‎(8)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 3/25/2011
• Doc Name: East Pit Recl Sequencing & Ditch Designs for Prospect Ditch, N Tribut E Pit Ditch & Final E Pit Ditc
• Section_Exhibit Name: Exhibit 07 Item 14 Appendix Exh7-14R
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
(`n n,min4,11000 —M D—Id I Qr1..u-
29
Velocity and Manning's n calculations may not apply for this method.
Structure #27 Oft rap Channel)
Last Cntr ditch to Prspct drainage
Trapezoidal Riprap Channel Inputs:
Material: Ripra�
Bottom Left Right
w/o Freeboard w/ Freeboard
Manning's n *:
Mult. x
Dmin:
1.00 in
D50:
3.00 in
Dmax:
3.75 in
Velocity and Manning's n calculations may not apply for this method.
Structure #27 Oft rap Channel)
Last Cntr ditch to Prspct drainage
Trapezoidal Riprap Channel Inputs:
Material: Ripra�
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope ( %)
Mult. x
Ratio Ratio
Depth (ft) % of Depth (VxD)
12.00 2.01 2.0:1 5.0
1.00
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Structure 1135 (Null)
Jct natrl Prospect and contour ditch
Structure #36 ( Nonerodible Channel)
Natural chnnl Prospect to Pond
Triangular Nonerodible Channel Inputs:
Filename: ProspectR2 1024 Postmining2010.sc4
Printed 10 -27 -2010
Exh. 7- 14R -41 Revision Date: 10/29/10
Revision No.: TR -87
w/o Freeboard w/ Freeboard
Design Discharge:
18.52 cfs
Depth:
0.22 ft 1.22 ft
Top Width:
12.89 ft 16.89 ft
Velocity *:
X- Section Area:
2.77 sq ft
Hydraulic Radius:
0.213 ft
Froude Number *:
Manning's n *:
Dmin:
1.00 in
D50:
3.00 in
Dmax:
3.75 in
Velocity and Manning's n calculations may not apply for this method.
Structure 1135 (Null)
Jct natrl Prospect and contour ditch
Structure #36 ( Nonerodible Channel)
Natural chnnl Prospect to Pond
Triangular Nonerodible Channel Inputs:
Filename: ProspectR2 1024 Postmining2010.sc4
Printed 10 -27 -2010
Exh. 7- 14R -41 Revision Date: 10/29/10
Revision No.: TR -87