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Catch Basin & Inlet Sizing

Sump and grate capacity check against design Q.

Result

Intercepted

2.8 cfs

Bypass

1.2 cfs

Efficiency

70%

About this tool

Estimate the inlet interception of a curb or grate and compare to the Rational Q. A direct response to r/civilengineering 'will this yard drain handle my downspout?' questions.

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