Estimate the time of concentration for each configuration

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A large shopping mall parking lot may be arranged in either of the two configurations shown in figure P-4-13. The drain commissioner prefers the longest time of concentration to allow for the passage of other peak flows in the drain. Using the highest runoff coefficient for asphaltic pavement, estimate the time of concentration for each configuration and recommend the one to sumit to the drain commissioner: area of (a) is same as area of (b).

Reference no: EM13562704

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