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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SEDCAD 4 for Windows
r— ,,,inhf 1009 -91)ln P-1. I Ghuuah
15
w/o Freeboard w/ Freeboard
Dmin: 2.00 in
D50: 6.00 in
Dmax: 7.50 in
Velocity and Manning's n calculations may not apply for this method.
Structure #24 6R1pra2 Channel
Trib A lower in 1 -2 yr reclaim
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
o
Freeboard Freeboard Freeboard
Width ft Sideslope Sideslope Slope ( %)
()
o Mult. x
Ratio Ratio
Depth (ft) /o of Depth
(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 #23 (NuII�
Edge disturb null
Structure #22 LNonerodlble Chann
Nat/ chnl edge disturb to 28 Collector
Triangular Nonerodible Channel Inputs:
Filename: Sec 28 1024.sc4 Printed 12 -08 -2010
Exh. 7- 20A -19 Revision Date: 12/31/10
Revision No.: TR -81
w/o Freeboard w/ Freeboard
Design Discharge:
28.19 cfs
Depth:
0.19 ft 1.19 ft
Top Width:
12.74 ft 16.74 ft
Velocity*:
X- Section Area:
2.29 sq ft
Hydraulic Radius:
0.178 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 his method.
Structure #23 (NuII�
Edge disturb null
Structure #22 LNonerodlble Chann
Nat/ chnl edge disturb to 28 Collector
Triangular Nonerodible Channel Inputs:
Filename: Sec 28 1024.sc4 Printed 12 -08 -2010
Exh. 7- 20A -19 Revision Date: 12/31/10
Revision No.: TR -81