An artificial lake is impounded by an earth dam with a square-edged orifice 12 inches by 12 inches for drawdown. The elevation of the surface of the lake is 928.75, and the invert of the orifice is 905.25. When the orifice is opened, what discharge in cfs flows through into the stream below the dam?

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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.