2015-09-09_PERMIT FILE - C1981019A ‎(10)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 9/9/2015
• Doc Name: West Taylor Sedimentation Pond
• Section_Exhibit Name: Exhibit 07 Item 20 Part C -ST
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
r...,,,.�..a.� 1000 onIn 0-1-1
Combined
Emergency Total
Elevation (ft) Spillway cfs
P Y ( ) Discharge
(cfs)
103.00 344.812 344.812
Structure #11 (Riprap Channel
East Trib Reach 1
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
I Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Width (ft)
25.03 cfs
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
12.00 3.0:1 3.0:1 25.0
12.76 ft
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Structure #10 (Riprap Channel
West Trib Reach 4 at Sta70
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
25.03 cfs
Depth:
0.13 ft
Top Width:
12.76 ft
Velocity*:
X -Section Area:
1.57 sq ft
Hydraulic Radius:
0.123 ft
Froude Number*:
Manning's n*:
Dmin:
3.00 in
D50:
9.00 in
Dmax:
11.25 in
Velocity and Manning's n calculations may not apply for this method.
Structure #10 (Riprap Channel
West Trib Reach 4 at Sta70
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Width (ft)
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
12.00 3.0:1 3.0:1 18.7
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
14
Filename: TR -105r WTayPond PMT 10 24.sc4 Printed 06-18-2015
Exh. 7-20C-47 Revision Date: 06/18/2015
Revision No.: TR -105