Critical depth for rectangular channels A rectangular open channel has a bottom width of 6.0 m and a Manning’s n of 0.02. a. For y? =2.0 m and Q =11 m^3/s, find the normal slope. Is the slope steep, critical, or mild? b. For Q =11 m^3/s, find the slope at which critical depth occurs. c. For y? =2.0 m and y? =2.0 m, find the channel slope and corresponding discharge.

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Q: Critical depth

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Q: Here

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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.