Water flows at the rate of 25 in a trapezoidal channel having a base width of 3 m and side slope of 4H:3V. If the canal is lined with the m³ concrete (n = 0.013) , determine: (a) critical depth, (b) critical velocity, c.) critical slope. To solve for the critical depth, you may use the formula: up to the water surface. (Q ^ 2)/g = (A ^ 3)/B where the critical depth is the height of the water from the channe

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Q: bot can't answer it right.

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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.