The peak and average flowrates for a velocity controlled grit chamber are 1.321 and 0.44 m3/s, respectively. Detention time is 1 min. and maximum velocity through the channel is 0.34 m/s. If channel width is 1.83 m, calculate the water depth in the channel, and design proportional weir the procedure given in bar rack design. The weir crest is 15 cm above the channel floor.

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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.