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A 0.45 km2 watershed has a composite runoff coefficient of 0.33. The overland flow distance to the beginning of a stream that drains the watershed is 200 m, and the ground slope is 5 %. The stream is 700
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A 0.45 km2 watershed has a composite runoff coefficient of 0.33. The overland flow distance to the beginning of a stream that drains the watershed is 200 m, and the ground slope is 5 %. The stream is 700 m long, with a drop in channel elevation of 50 m. Estimate the peak rate of runoff for the 100-year storm considering the overland flow time and the channel flow time.

User Zorox
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Answer: The peak rate of runoff for the 100-years = 365 m/second

Explanation: please find the attached files for the solution

A 0.45 km2 watershed has a composite runoff coefficient of 0.33. The overland flow-example-1
A 0.45 km2 watershed has a composite runoff coefficient of 0.33. The overland flow-example-2
User SexyNerd
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