2011-06-29_PERMIT FILE - C1981019A ‎(22)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2011
• Doc Name: Permanent Channel Design
• Section_Exhibit Name: Exhibit 07 Item 20 Part E -ST
• Media Type: D
• Archive: Yes

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SEDCAD 4 for Windows
+ooa _omn o—i. i
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width ft Sideslope Sideslope Slope ( %)
()
Mult. x
Depth ( ft) % of Depth
Ratio Ratio
(VxD)
12.00 3.0:1 3.0:1 2.0
16.43 ft
Riprap Channel Results:
Structure #15 (Pond)
Stk Pnd 6
Pond Inputs:
Pond Results:
Simons /OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Initial Pool Elev: 100.00 ft
Initial Pool: 2.01 ac -ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
100.00 20.00 2.00:1 2.00:1 20.00
Peak Elevation: 101.47 ft
Dewater Time: 0.83 days
Dewatering time is calculated from peak stage to lowest spillway
13
Elevation - Capacity- Discharge Table
Filename: W Tay East Trib Ditch 10024.so4 Printed 12 -27 -2010
Exh. 7- 20E -36 Revision Date: 12/31/10
Revision No.: TR -81
w/o Freeboard w/ Freeboard
Design Discharge:
92.12 cfs
Depth:
0.74 ft
Top Width:
16.43 ft
Velocity*:
X- Section Area:
10.51 sq ft
Hydraulic Radius:
0.630 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.
Initial Pool Elev: 100.00 ft
Initial Pool: 2.01 ac -ft
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
100.00 20.00 2.00:1 2.00:1 20.00
Peak Elevation: 101.47 ft
Dewater Time: 0.83 days
Dewatering time is calculated from peak stage to lowest spillway
13
Elevation - Capacity- Discharge Table
Filename: W Tay East Trib Ditch 10024.so4 Printed 12 -27 -2010
Exh. 7- 20E -36 Revision Date: 12/31/10
Revision No.: TR -81