A watershed consists of three adjacent tracts, each discharging to a centrally located common outlet. The area and rational runoff coefficient of each tract are given. The peak flow coincides with the time to concentration, which is 16 min. The rainfall intensity at the time to concentration is 2.8 in/hr. There is no cross runoff. What is the approximate peak runoff from the watershed at the time of concentration
Answers
Answer: hello some part of the question is missing attached below is the missing part
answer : 24. cfs
Explanation:
Determine the approximate peak runoff from the watershed at the time of concentration
given data :
rainfall intensity = 2.8 in/hr
discharge by rational formula Q = C*I*A
where : C = runoff coefficient , I = intensity of rainfall , A = area ( Note : 1 arc = 6272649 ( inch )^2
Hence approximate peak runoff from watershed
= ∑ Q = Q1 + Q2 + Q3 = 24.18 ft^3 / sec ≈ 24 cfs
attached below is the detailed solution
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