1990-01-18_REVISION - M1988112 ‎(5)‎

• Permit No: M1988112
• IBM Index Class Name: Revision
• Doc Date: 1/18/1990
• Doc Name: SAN LUIS PERMIT AMENDMENT ADEQUACY RESPONSES
• From: STEFFEN ROBERTSON & KIRSTEN
• To: MLRD
• Type & Sequence: AM1
• Media Type: D
• Archive: No

. , - .;
DITCH DESIGN SPREADSHEET (DITCHIT.WKQ) (M.W.BROOKS,SRK,08/24/89)
UTILIZING MANNINGS EQUATION FOR THE DETERMINATION OF FLOW CAPACITY
IN TRAPEZOIDAL, V-SECTION, AND RECTANGULAR CHANNELS
PROJECT TITLE:
DESIGN FEATURE:
ENGINEER:
DATE:
COMMENTS:
INPUT PARAMETERS:
REQUIRED CAPACITY=
CHANNEL SLOPE=
BASE WIDTH=
TRIAL FLOW DEPTH=
FREEBOARD REQUIRED=
BANK SLOPE (?H:1V)=
ROUGHNESS COEF.=
SAN LUIS PROJECT 14705
COLLECTION POND OUTLET (RECLAMATION)
RIPRAP SIZING
G.MULLER
JANUARY 8 1990
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= 191.8 ft
X-SECTIONAL AREA= 770.28 sq ft FROUDE NUMBER= 0.7
HYDRAULIC RADIUS= 3.97 ft FLAW STATE: subcritical
FLOW VELOCITY= 8.1 fps
DISCHARGE= b218.6 cfs 0 ~ below capacity
CHANNEL DEPTH= 5.2 ft increase channel
dimensions