Forum discussion
NC-2009 SSc6.1: Stormwater Design—Quantity Control
The data I have to work with for filling this credit out are pre- and post-development calculations for a 100 year storm with a duration of 1 hour. How does this relate/convert to 1-yr, 24 hr and 2-yr, 24 hour design storms?
Thank you!
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Susann Geithner
PrincipalEmerald Built Environments
1297 thumbs up
August 11, 2011 - 1:20 pm
It doesn't. You will have to obtain the 1yr, 24hr and 2 yr 24 hour storm data form your local weather service. It's a totally different value. In general if the systems were designed to handle the 100 year storm than they are very much capable to handle the others. I did a project in German with the exact same question.