2021-04-05_PERMIT FILE - C1981019A ‎(19)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 4/5/2021
• Doc Name: West Taylor Pond and Channels
• Section_Exhibit Name: Exhibit 07 Item 20 Part B -ST
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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23
East Fork Taylor Ditch 0+00 to EFSP-1
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope(%) Mult.x
Width(ft) Ratio Ratio Depth (ft) %of Depth (VxD)
12.00 3.0:1 3.0:1 25.0 3.96
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 5.93 cfs
Depth: 0.04 ft 4.00 ft
Top Width: 12.21 ft 35.97 ft
Velocity*:
X-Section Area: 0.43 sq ft
Hydraulic Radius: 0.035 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 #16(Vegetated Channel
7700' Terrace Ditch
Triangular Vegetated Channel Inputs:
Material: Smooth brome
Left Right Freeboard Limiting
9 Freeboard Freeboard 9
Retardance
Sideslope Sideslope Slope(%) Mult.x Velocity
Ratio Ratio Classes Depth(ft) %of Depth (VxD) (fps)
1.5:1 3.0:1 1.5 D, B 2.38 7.0
Vegetated Channel Results:
Stability Stability Capacity Capacity
Class D w/o Class D w/ Class B w/o Class B w/
Freeboard Freeboard Freeboard Freeboard
Design Discharge: 0.06 cfs 0.06 cfs
Depth: 0.29 ft 2.67 ft 0.62 ft 3.00 ft
Top Width: 1.29 ft 12.00 ft 2.81 ft 13.52 ft
Filename:West Taylor Pond 10 YR-24 HR.sc4 Printed 01-05-2021