Horizontal rectangular channel (4 m) wide is carrying a discharge of 20 m3/s at a depth of 2.5 m. If the channel width is reduced linearly from 4 m to 3 m in length of 5 m, determine the flow depth at the location where the channel width is 3.5 m. Assume there are no losses in the contraction

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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.