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re: Let us talk Flooding in Ascension and surrounding areas

Posted on 5/29/14 at 3:09 pm to
Posted by ScottieP
Baton Rouge, LA
Member since Feb 2004
1933 posts
Posted on 5/29/14 at 3:09 pm to
quote:

The 100-yr rainfall total for this region is 12.6" in 24hrs. If it was 12" in 10hrs, then holy shite...there's nothing that can handle that. I didn't think it was nearly that bad. EBR only seemed to get about 3"-4", which is still a lot.


In Gonzales area,12 inches of rain fell in about 8 hours and around 10am almost 2 inches fell in 30 minutes
LINK
Posted by Grit-Eating Shin
You're an Idiot
Member since May 2013
8437 posts
Posted on 5/29/14 at 3:13 pm to
quote:

In Gonzales area,12 inches of rain fell in about 8 hours and around 10am almost 2 inches fell in 30 minutes
Good lord. Then there's your answer. There aren't any conveyance systems, natural or man-made, that can handle that amount of precipitation. Detention basins are generally designed to attenuate the runoff from a 10-year storm, which is 8.5" in 24hrs.
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