A rectangular channel 6.0 m wide carries a discharge of 16.0 m³/sunder uniform flow condition with normal depth of 1.60 m. Manning's 'n' is 0.015. The longitudinal slope of the channel is (a) 0.000585 (b) 0.000485 (c) 0.000385 (d) 0.000285

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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.