Question

what does a runoff of 13.4 m^3/s (471.6cfs) tell you about the airport and what drainage...

what does a runoff of 13.4 m^3/s (471.6cfs) tell you about the airport and what drainage it needs ?

other info:
rain intensity= 1.738 in./hr
time of concentration= 113.6 mins.
coefficient of runoff= 0.80
Total area: 339.2 acres

Engineering   Civil-Engineering   
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Answer #1

This is stormwater runoff (13.46 cumec )generated due to rainfall in watershed area at airport and it takes 113.6 minutes to reach this runoff from most distant point to the outlet of the watershed. Time of concentration includes time for water to reach in pipes and travel time in pipes to the outlet.

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