6.2. A 10-m wide, rectangular, concrete-lined canal has a bottom slope of 0.01 and a constant-level lake at the upstream end. The water level in the lake is 6.0 m above the bottom of the canal at the entrance. If the entrance losses are negligible, determine i. The flow depth 800 m downstream of the canal entrance; and ii. The distance from the lake where the flow depth is 2.5 m.

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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.