Manning Flow CalculatorCFS 1.49MGD 0.963

Units = CFS (Drop-down) GPM 669Level = 1.20 feet

Diameter = 1.67 feetSlope = 0.0070 ft./ft. (1%=.01 ft./ft.)

Pipe Material = Concrete - RCP (Drop-down)

n = 0.013 (Manning coefficient)d/D = 0.71856287

0.5964 R/D = 0.2973

A = 1.66329996 R = 0.496491 ft.

Q =1.49 0.083666

n 0.62701

Q =1.49 x 1.6633 x 0.4965 0.0070

0.013

Q = 10.00 CFS

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A/D2 =

ft.2

A R⅔ S½

Eart

Eart

⅔ ½

Eart

Floo

Floo

Floo

Type in RED SQUARES,

BLUE SQUARES are drop-down menus.