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
(`nrn.rin LN loop -Onln D -1n i
Structure #10 (Riprap Channel)
West Trib Reach 4 at Sta70
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%) ! Mult. x
Width (ft) Ratio Ratio Depth (ft) % of Depth (VxD)
12.00 3.0:1 3.0:1 18.7
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Structure #9 (Null
Null
Structure #8 (Riprap Channel)
West Trib Reach 3 at Sta40
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Bottom
Width (ft) Sideslope Sideslope Slope Mult. x
( ) Depth (ft) % of Depth
(VxD)
12.00 3.0:1 3.0:1 7.8
Riprap Channel Results:
Filename: TR -105r WTayPond PMT 25 24NS.sc4 Printed 06-18-2015
Exh. 7-20C-71 Revision Date: 06/18/2015
Revision No.: TR -105
w/o Freeboard w/ Freeboard
Design Discharge:
39.12 cfs
Depth:
0.24 ft
Top Width:
13.42 ft
Velocity*:
X -Section Area:
3.02 sq ft
Hydraulic Radius:
0.223 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 #9 (Null
Null
Structure #8 (Riprap Channel)
West Trib Reach 3 at Sta40
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Bottom
Width (ft) Sideslope Sideslope Slope Mult. x
( ) Depth (ft) % of Depth
(VxD)
12.00 3.0:1 3.0:1 7.8
Riprap Channel Results:
Filename: TR -105r WTayPond PMT 25 24NS.sc4 Printed 06-18-2015
Exh. 7-20C-71 Revision Date: 06/18/2015
Revision No.: TR -105