A watershed has an average slope of 0.5%, and the distance from the watershed boundary to the outlet is 90 m. n= 0.012. For a 20-min storm with an effective rainfall rate of 75 mm/h, estimate the time of concentration using the kinematic-wave equation.

A watershed has an average slope of 0.5%, and the distance from the watershed boundary to the outlet is 90 m. n= 0.012. For a 20-min storm with an effective rainfall rate of 75 mm/h, estimate the time of concentration using the kinematic-wave equation.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter16: Highway Drainage

Section: Chapter Questions

Problem 4P

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

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