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  1. engineering
  2. civil engineering
  3. a a = 0.55 (m) × b = 0.3 (m) concrete box with

A a = 0.55 (m) × b = 0.3 (m) concrete box with Manning roughness coefficient...

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Civil Engineering

A a = 0.55 (m) × b = 0.3 (m) concrete box withManning roughness coefficient of n = 0.016 is tobe placed under a roadway. During the T = 100years design storm, it is expected that water will pond behind theculvert to a height h = 0.2 (m) above the crown ofthe culvert. If the culvert entrance is to be rounded with the exitloss coefficient of Ke = 0.2 and dischargecoefficient of Cd = 0.45. If the slope of theculvert is S% = 0.2 and the length of the culvertis L = 4 (m),

  1. estimate the flow rate through the culvert.
  2. If the flow rate drops down to 20% of the design storm,estimate the depth of water behind the culvert.

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