Water is flowing at a depth of 1.5m in a 3m-wide rectangular channel having n-0.013 and S =0.0009. a) What is the stage of flow. b) Determine the critical depth, and c) determine the critical slope.

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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.