2013-04-08_PERMIT FILE - C1981019A ‎(2)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 4/8/2013
• 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

Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft) Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
12.00 2.0:1 2.0:1 5.4
1.00
Riprap Channel Results:
Structure #14 (Pond,
Pond EP2
Pond Inputs:
Pond Results:
Simons /OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Initial Pool Elev: 7,495.00 ft
Initial Pool: 2.38 ac -ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
7,495.00 20.00 2.00:1 2.00:1 20.00
Peak Elevation: 7,495.71 ft
Dewater Time: 0.68 days
Dewatering time is calculated from peak stage to lowest spillway
Elevation - Capacity- Discharge Table
Filename: NTEP and Final East Pit Ditches 1024 2017 REV 1.sc4 Printed 03 -26 -2013
Exh. 7- 14R -26 Revision Date: 3/27/2013
Revision No.: TR -97
w/o Freeboard w/ Freeboard
Design Discharge:
27.21 cfs
Depth:
0.29 ft 1.29 ft
Top Width:
13.17 ft 17.17 ft
Velocity*:
X- Section Area:
3.67 sq ft
Hydraulic Radius:
0.276 ft
Froude Number *:
Manning's n *:
Dmin:
2.00 in
D50:
6.00 in
Dmax:
7.50 in
Velocity and Manning's n calculations may not apply for this method.
Initial Pool Elev: 7,495.00 ft
Initial Pool: 2.38 ac -ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
7,495.00 20.00 2.00:1 2.00:1 20.00
Peak Elevation: 7,495.71 ft
Dewater Time: 0.68 days
Dewatering time is calculated from peak stage to lowest spillway
Elevation - Capacity- Discharge Table
Filename: NTEP and Final East Pit Ditches 1024 2017 REV 1.sc4 Printed 03 -26 -2013
Exh. 7- 14R -26 Revision Date: 3/27/2013
Revision No.: TR -97