An earth canal containing weeds and grass has a bottom width of 15 ft. and side slopes of 2 horizontal to l vertical. The depth of water is 4 ft. and the slope is 2.75 ft. per mile. It is desired to change the section to a semi-circular concrete-lined channel having a slope of 1.5 ft. in 1,000 ft. Determine the radius of the semi-circular channel in ft if it flows full. Use n = 0.035 for t

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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.