2015-10-16_PERMIT FILE - C1981018 ‎(3)‎

• Permit No: C1981018
• IBM Index Class Name: Permit File
• Doc Date: 10/16/2015
• Doc Name: SDH-3 Dewatering Pond System Hydrology and Sedimentology
• Section_Exhibit Name: Illustration 56
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
(`nnvrin ht 1°OR _9lNn D-tc I Crhur�h
Elevation
(ft)
Emergency
Spillway (cfs)
Combined
Total
Discharge
(cfs)
5,440.00
5,441.00
0.000
0.000
0.000
0.000
5,442.00
0.000
0.000
5,443.00
0.000
0.000
5,444.00
0.000
0.000
5,445.00
6.544
6.544
5,446.00
32.412
32.412
Structure #4 (Riprap Channel)
Channel from Upper to Middle Pond
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslo a Sideslo a Slope Width (ft) p p pe ( )De
Mult. x
Ratio Ratio
Depth of Depth
(VxD)
1.50 2.0:1 2.0:1 18.0
1.88 ft
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Structure #3 (Pond
Middle Pond
Pond Inputs:
N.
Filename: SDH -3 Pond Expansion 2015.sc4 Printed 09-10-2015
w/o Freeboard w/ Freeboard
Design Discharge:
1.18 cfs
Depth:
0.09-ft---
.09ftTop
TopWidth:
1.88 ft
Velocity*:
X -Section Area:
0.16 sq ft
Hydraulic Radius:
0.082 ft
Froude Number*:
Manning's n*:
Dmin:
D50:
3.00 in
9.00 in
Dmax:
11.25 in
Velocity and Manning's n calculations may not apply for this method.
Structure #3 (Pond
Middle Pond
Pond Inputs:
N.
Filename: SDH -3 Pond Expansion 2015.sc4 Printed 09-10-2015