2011-09-27_PERMIT FILE - C1982056A ‎(5)‎

• Permit No: C1982056A
• IBM Index Class Name: Permit File
• Doc Date: 9/27/2011
• Doc Name: Design Information for 15LT Ventilation Shaft
• Section_Exhibit Name: Exhibit 49Y 15LT Ventilation Shaft Design Drawings
• Media Type: D
• Archive: Yes

•
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Trapezoidal Riprap Channel Inputs:
Material: Ripra
Bottom Left Right Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope Depth (ft) % of Depth Mult. x
Ratio Ratio (VxD)
2.00 3.0:1 3.0:1 2.0 150.00
Riprap Channel Results:
Sirnons/OSM Method - Mild Slope Design
• Filename: 15 Left Submains Bleeder - Below Pad.sc4 Printed 09-08-2011
w/o Freeboard w/ Freeboard
Design Discharge:
0.28 cfs
Depth:
0.11 ft 0.26 ft
Top Width:
2.63 ft 3.59 ft
Velocity:
1.14 fps
X-Section Area:
0.24 sq ft
Hydraulic Radius:
0.092 ft
Froude Number:
0.66
Manning's n:
0.0377
Dmin:
2.00 in
DSO:
9.00 in
Dmax:
12.00 in
• Filename: 15 Left Submains Bleeder - Below Pad.sc4 Printed 09-08-2011