2021-09-03_PERMIT FILE - C1981019 ‎(5)‎

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 9/3/2021
• Doc Name: Collom Haul Road Channel Configurations
• Type & Sequence: TR149
• Section_Exhibit Name: Exhibit 7, Item 25E
• Media Type: D
• Archive: No

w/o Freeboard w/ Freeboard
Top Width: 5.37 ft 17.01 ft
Velocity*:
X-Section Area: 0.48 sq ft
Hydraulic Radius: 0.088 ft
Froude Number*:
Manning's n*:
Dmin: 1.00 in
D50: 3.00 in
Dmax: 3.75 in
Velocity and Manning's n calculations may not apply for this method.
Structure #2 (Null)
Null at Confluence of C-5 and C-6 Channels
Structure #1 (Riprap Channel)
C-5 Channel
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom
Width (ft)
Left
Sideslope
Ratio
Right
Sideslope
Ratio
Slope (%)Freeboard
Depth (ft)
Freeboard
% of Depth
Freeboard
Mult. x
(VxD)
5.00 2.0:1 2.0:1 10.0 2.89
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 3.91 cfs
Depth: 0.11 ft 3.00 ft
Top Width: 5.45 ft 17.01 ft
Velocity*:
X-Section Area: 0.58 sq ft
Hydraulic Radius: 0.106 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: C-5 C-6 Channels 10-yr 24-hr.sc4 Printed 06-16-2021
SEDCAD 4 for Windows
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