It is proposed to adopt the dilution method of stream gauging for a river whose hydraulic properties at average flow are as follows: width= 45 m, depth = 2.0 m, discharge = 85 m³/s, Chezy coefficient = 20 to 30. Determine the safe mixing length that has to be adopted for this stream. 9 km 11 km 13 km 14 km

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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.