2001-03-19_REVISION - M1988112

• Permit No: M1988112
• IBM Index Class Name: Revision
• Doc Date: 3/19/2001
• Doc Name: FAX COVER
• From: DMG
• To: WESTERN MINING ACTION PROJECT
• Type & Sequence: AM1
• Media Type: D
• Archive: No

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DITCH DESIGN SPREADSHEET (DITCHIT.WKQ) (M.W.BROOKS,SRK,OS/24/89)
UTILIZING MANNINGS EQUATION FOR THE DETERMINATION OF FLOW CAPACITY
IN TRAPEZOIDAL, V-SECTION, AND RECTANGULAR CHANNELS
PROJECT TITLE: SAN LUIS PROJECT 14705
DESIGN FEATURE: COLLECTION POND OUTLET (RECLAMATION)
RIPRAP SIZING
ENGINEER: G.MULLER
DATE: JANUARY 8 1990
COMMENTS:
INPUT PARAMETERS:
REQUIRED CAPACITY=
CHANNEL SLOPE=
BASE WIDTH=
TRIAL FLOW DEPTH=
FREEBOARD REQUIRED=
BANK SLOPE (?H:1V)=
ROUGHNESS COEF.=
6220.0 cfs
0.8 ~
175.0 ft
4.2 ft
1.0 ft
2 :1
0.04
....................................................................
OUTPUT VALUES:
WETTED PERIMETER= 193.78 ft FLOW WIDTH= 191.3 ft
X-SECTIONAL AREA= 770.28 sq ft FROUDE NUMBER= 0.'7
HYDRAULIC RADIUS= 3.97 ft FLOW STATE: sUbcritical
FLOW VELOCITY= 8.1 fps
DISCHARGE= 6218.6 cfs 0 ~ below capacity
CHANNEL DEPTH= 5.2 ft increase channe:.
dimensions