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re: Baton Rouge Baws - Why did this storm seem to flood areas that 2016 didn't touch?

Posted on 6/6/19 at 4:33 pm to
Posted by Obtuse1
Westside Bodymore Yo
Member since Sep 2016
31129 posts
Posted on 6/6/19 at 4:33 pm to
quote:

River was lower than normal before the rains started yesterday.

It does look like the Bonnet Carre is holding water up in the Amite though.


At least on the lower Amite/Diversion it was above what I consider "normal" for the area this time of year maybe as much as a foot higher. It has been very slow to drain since the last flood (partly due to the Bonnet Carre) and the daily tidal variance has been larger than I am used to seeing but maybe it is the position of the moon and I just haven't noticed it in the past because the water was usually lower when the tides were larger.
Posted by TakeAGander
Baton Rouge
Member since Jun 2010
584 posts
Posted on 6/6/19 at 4:41 pm to
Flooded 6 ft in 2016. Flooded again today, 3”. Today was purely a lack of proper sewage and drainage systems. Water came up through the shower and flowed into the living room. It eventually came through the backside of the house as the backyard began to fill.
Posted by Glock17
Member since Oct 2007
23186 posts
Posted on 6/6/19 at 4:49 pm to
I saw where measured 7.8 inches of rain today... that’s an insane amount of rain in a couple of hours
Posted by tigeraddict
Baton Rouge
Member since Mar 2007
15162 posts
Posted on 6/6/19 at 5:10 pm to
quote:

Flooded 6 ft in 2016. Flooded again today, 3”. Today was purely a lack of proper sewage and drainage systems. Water came up through the shower and flowed into the living room. It eventually came through the backside of the house as the backyard began to fill.


nit saying the city and DPW haven't maintained the storm sewer system properly, but the amount of rain in a short period of time was higher then the standard design rate.

what likely happened is the storm sewer system was inundated with too much rain, causing the system to back up and flood the streets to an elevation higher the the sewer manhole lids. once that happened, the storm water drains into the sanitary sewer system, which cannot handle the extra load capacity, thus causing it to back up into your house.

for Baton Rouge, the design rain rate from the contour rainfall map is between 3.0 - 3.2" per hour for a 10 year flood event

we had some places with 6+ inches in less then an hour
Posted by lsunurse
Member since Dec 2005
129146 posts
Posted on 6/6/19 at 5:56 pm to
quote:

i dont my hood had zero threat to be flooded and his how was the same in 2016.


I just meant that the 2016 flood showed that places that are said to not be in a flood zone still can and do flood.

My parent’s mobile home was in a no flood zone...5-6 feet raised off the ground and they still got over 2 feet of water. I would have just thought that the 2016 flood would have scared many that didn’t have flood insurance into buying flood insurance.

Friend of mine didn’t have flood insurance and her house also not in a flood zone....talked husband out of it when they bought their home. She watched as water crept right close to their doorstep (they didn’t flood), praying the water wouldn’t get any higher. And I know now she has flood insurance.

Hell....the whole flood experience my parents dealt with has made me want to get flood insurance out here whenever I buy a home(homes do occasionally flood during monsoon season...but pretty rare). I don’t ever want to face what my parents did.
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
79746 posts
Posted on 6/6/19 at 6:07 pm to
quote:

At least on the lower Amite/Diversion it was above what I consider "normal" for the area this time of yea


Just going by what I have seen the last few mornings on the pier. Looking at the gauge, it has been 2.5-3' which is pretty normal and the tidal levels have been showing.
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