2011-06-29_PERMIT FILE - C1981019A ‎(20)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2011
• Doc Name: Section 28 Sedimentation Pond
• Section_Exhibit Name: Exhibit 07 Item 20 Part A -ST
• Media Type: D
• Archive: Yes

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Left Right Freeboard Freeboard Freeboard
Width
Bottom
w/o Freeboard w/ Freeboard
(ft) Sideslope Sideslope Slope ( %)
Depth (ft) % of Depth Mult. x
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 18.0
1.00
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for his method.
Structure #11 ( Riprap Channel)
Trib C, reclaimed 3 yr
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
°(ft)
w/o Freeboard w/ Freeboard
Design Discharge:
3.70 cfs
Depth:
0.04 ft 1.04 ft
Top Width:
12.15 ft 16.15 ft
Velocity*:
X- Section Area:
0.47 sq ft
Hydraulic Radius:
0.038 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 his method.
Structure #11 ( Riprap Channel)
Trib C, reclaimed 3 yr
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
°(ft)
Freeboard Freeboard Freeboard
Width Sideslope Sideslope Slope ( %)
Depth (ft) % of Depth Mult. x
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 25.0
1.00
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
9M
Filename: Sec 28 1024.sc4 Printed 12 -08 -2010
Exh. 7- 20A -24 Revision Date: 12/31/10
Revision No.: TR -81
w/o Freeboard w/ Freeboard
Design Discharge:
6.30 cfs
Depth:
0.04 ft 1.04 ft
Top Width:
12.15 ft 16.15 ft
Velocity*:
X- Section Area:
0.45 sq ft
9M
Filename: Sec 28 1024.sc4 Printed 12 -08 -2010
Exh. 7- 20A -24 Revision Date: 12/31/10
Revision No.: TR -81