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

•
SEDCAD 4 for Windows
rnn,,.fnh. loop _9Mn D—s I C,K—ro ,
13
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Ratio Ratio
Depth (ft) % of Depth (VxD)
1.0:1 1.0:1 26.0 0.0350
4.29 ft
Nonerodible Channel Results:
Structure #12 ( Riprap Channel
Trib C, reclaimed 1 -2 yr
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
83.27 cfs
Depth:
2.15 ft
Top Width:
4.29 ft
Velocity:
18.06 fps
X- Section Area:
4.61 sq ft
Hydraulic Radius:
0.759 ft
Froude Number:
3.07
Structure #12 ( Riprap Channel
Trib C, reclaimed 1 -2 yr
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft)
Mult. x
Depth (ft) % of Depth
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 this method.
Structure #11 ( Riprap Chann %j
Filename: Sec 28 100 24.sc4 Printed 12 -08 -2010
Exh. 7- 20A -52 Revision Date: 12/31/10
Revision No.: TR -81
w/o Freeboard w/ Freeboard
Design Discharge:
9.07 cfs
Depth:
0.07 ft 1.07 ft
Top Width:
12.29 ft 16.29 ft
Velocity*:
X- Section Area:
0.88 sq ft
Hydraulic Radius:
0.072 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 this method.
Structure #11 ( Riprap Chann %j
Filename: Sec 28 100 24.sc4 Printed 12 -08 -2010
Exh. 7- 20A -52 Revision Date: 12/31/10
Revision No.: TR -81