2011-06-29_PERMIT FILE - C1981019A ‎(16)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2011
• Doc Name: Section 21 Sedimentation Pond
• Section_Exhibit Name: Exhibit 07 Item 20 Part B -ST
• Media Type: D
• Archive: Yes

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SEDCAD 4 for Windows
r ...m..n. mon -vmv o.,...vi~ i c,.n,.en
w/o Freeboard w/ Freeboard
X-Section Area: 5.15 sq R
Hydraulic Radius: 0.373 ft
Froude Number*:
Manning's n*:
Dmin: 2.00 in
D80: 6.00 in
Dmax: 7.50 in
Velocity and Manning's n calculations may not apply for this method.
Structure #l8 (Nu//1
SEC. ZI NULL 3
Structure #19 (Riorao Channel)
SEC. 21 DITCH 12
Trapezoidal Riprap Channel Inputs:
Material: Riorao

LeR Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%) Mult. z
Width (R) Ratio Ratio Depth (ft) % of Depth (VxD)
12.00 2.0:1 2.0:1 21.6 1.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 71.42 ds
Depth: 0.35 ft 1.35 ft
Top Wid[h: 13.38 R 17.38 R
Velocity*:
X-SeRion Area: 4.38 sq R
Hydraulic Radius: 0.324 R
Froude Number*:
Manning's n*:
Dmin: 4.00 in
D50: 12.OD in
Dmax: 15.00 in
Velocity and Manning's n calculations may not apply for Nis method.

Structure #36 (~enetated Channel
SEC. 21 COLLECTOR DITCH 4
t7
Filename: STSecZlHundred24,0f0807sc4
Exh.7-20B-71
Printed Ot-OB-2007
Revision Date: 1/05/07
Revison No.: PR-02