Consider a trapezoidal channel conveys water with bottom width of 7 m and side slope of 2:1. The bed slope is given as 0.001. The discharge is 28 m/s with Manning's roughness coefficient of 0.02. A control gate increased the depth immediately to 8 m. Q3 (a) Determine the critical depth.

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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.