2020-03-31_PERMIT FILE - C1981019A ‎(12)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 3/31/2020
• Doc Name: Spoil Pile Collector Ditches
• Type & Sequence: TR136
• Section_Exhibit Name: Volume 18 Exhibit 7 Item 23 Part B
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Cnrn,rinht 1 QQR-9f11 f1 Pamola I Crhtniah
10
Combined
Elevation Emergency Total
(ft) Spillway(cfs) Perf. Riser(cfs)
Discharge
(cfs)
7,165.00 0.000 0.000 0.000
7,166.00 0.000 0.000 0.000
7,167.00 0.000 3.00>0.000 0.000
7,168.00 0.000 0.473 0.473
7,169.00 0.000 0.669 0.669
7,170.00 0.000 0.819 0.819
--- --- -- -- ----------- -------- ---- --- -- ----
7,171.00 0.000 8.509 8.509
7,172.00 0.000 12.033 12.033
7,173.00 25.559 14.738 40.297
7,174.00 98.065 17.018 115.083
Structure #5(Null)
Structure #4(Riprap Channel)
DI Ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard
Bottom g Freeboard Freeboard
Sideslope Sideslope Slope(%)
Width(ft) Ratio Ratio Depth(ft) %of Depth Mult.x
(VxD)
12.00 2.0:1 2.0:1 21.0
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
w/o Freeboard w/Freeboard
Design Discharge: 12.41 cfs
Depth: 0.08 ft
Top Width: 12.33 ft
Velocity*:
X-Section Area: 1.01 sq ft
Hydraulic Radius: 0.081 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.
Filename:West Side Temp Spoil Pile 10 Yr 24 Hr.sc4 Printed 12-31-2019