GENERAL33455

• Permit No: C1981041
• IBM Index Class Name: General Documents
• Doc Date: 8/3/2006
• Doc Name: Letter Regarding July 20th Rainfull Event
• From: J.E. Stover & Associates Inc
• To: DMG
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
r,...,,.~~~.~ ~°on o~,.,oi~ i c.~,,.,~n
5
Structure Detai/;
Structure #1 Ri rap Channel)
Seg 1 Section A A
Trapezoidal Riprap Channel Inputs:
Material: Riprap
~- Left
Bottom ~ - Righf, -- Freeboard Freeboard - Freeboard
~- sideslope
Width (ft)} ,Sideslope- Slope (%) ~ -
Depth (ft) % of Depth - Mult. x
Ratio .Ratio (VxD)
3.00 1.5:1 1.5:1 3.0 3.00
Riprap Channel Results:
Simons/OSM Method -Steep Slope Design
- w/o Freeboard- -.w/.Freeboard
Design Discharge: 25.07 ds
Depth: 0.53 ft 3.53 ft
Top Width: 4.58 ft 13.58 ft
velocity*:
X-Section Area: 2.00 sq ft
Hydraulic Radius: 0.409
Froude Number*:
Manning's n*:
Dmin: 4.00 in
D50: 12.00 in
Dmax: 15.00 in
Velocity and Manning's n cakulations may not apply for this method.
Structure #2 (Riprap Channel)
Seg 2 Section B-B
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right Freeboard Freeboard Freeboard
Width (ft)} Sideslope
R
ti Sideslope Slope (%)
ti
R -
Depth (ft) % of Depth Mult. x
a
o a
o (VxD)
3.00 1.5:1 1.5:1 23.0 3.00
Riprap Channel Results:
Filename: PCC-RSRDA-UpDiversion.sc4 Printed 07-31-2006