An impervious drainage area has a downgradient length of 600 ft. It has a runoff depth versus…

An impervious drainage area has a
downgradient length of 600 ft. It has a runoff depth versus unit-width flow
rate relationship (i.e., q ~ y) as shown in the following table. A 30-min storm
has the instantaneous rainfall intensities (irj) also
given in the following table. Determine the flow hydrograph at the lower end of
the drainage area using the Kinematic Wave method with Δt = 5min and
Δx = 150 ft. Assume that the drainage area is dry at the beginning of the
storm and there is no lateral inflow into this drainage area.

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