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re: On the back side of Alligator Bayou...Parish ordered evacuation (Aug 15th)

Posted on 8/16/16 at 2:36 pm to
Posted by Schmelly
Member since Jan 2014
16167 posts
Posted on 8/16/16 at 2:36 pm to
quote:

If both sides are level, then no. Unless the bayou has 3ft+ sitting in it right now I don't think it's close to being level since that whole area south of Bluff is <10ft of elevation. I think it would continue to fill up the bayou until it is level with the other side of Alligator Bayou. If Amite is still sitting @ 20ft+ then Manchac is going to start emptying this way instead of back to the Amite (path of least resistance).


So you're saying where that swamp gauge is located is fooling me into thinking it's just about level?
Posted by SoloTiger
Member since Aug 2016
10890 posts
Posted on 8/16/16 at 2:36 pm to
LSU weights I'm just down from you in Springlake. That area north of Burbank is low elevation for the area. Your area and then just south of Burbank are first areas to flood at about 15' elevation. Not to mention the terrible drainage over there.

Heck...a good rain puts 6" of water behind Walgreens and McDonalds near you.

I'm praying for Ridge and Bluffs folks over near Alligator Bayou.
Posted by LSUweights
Baton Rouge
Member since Sep 2014
3594 posts
Posted on 8/16/16 at 2:39 pm to
quote:

That area north of Burbank is low elevation for the area. Your area and then just south of Burbank are first areas to flood at about 15' elevation. Not to mention the terrible drainage over there.


Correct, but we are also higher than places right next to us, like Westhaven
Water is flowing in the right direction and going down from my mark in my subdivision
I think/hope/pray the threat to Bayou Fountain is over
I am praying for the guys south of us in the swamp area as well
Posted by Kay
Member since Mar 2011
1944 posts
Posted on 8/16/16 at 2:42 pm to
Friends parents refuse to leave Ridge. Bluff closed to North and water filling entrances at Oak Alley, my arse would be gone.
This post was edited on 8/16/16 at 2:42 pm
Posted by SoloTiger
Member since Aug 2016
10890 posts
Posted on 8/16/16 at 2:43 pm to
I think you are good now. Bayou Fountain slowly dropping and like you said...flow is reversing.

It's been a long 48 hours for sure.
Posted by StinkBait72
Member since Nov 2011
2072 posts
Posted on 8/16/16 at 2:44 pm to
Chinook flew over about 30 mins ago heading South East
Posted by LSUweights
Baton Rouge
Member since Sep 2014
3594 posts
Posted on 8/16/16 at 2:47 pm to
quote:

I think you are good now. Bayou Fountain slowly dropping and like you said...flow is reversing.


quote:

It's been a long 48 hours for sure.


Yeah, like I said earlier, I still have about 6 feet before it becomes an issue
Last night at 7:30 the water was past the dry line/crack
about an hour ago:
Posted by lnomm34
Louisiana
Member since Oct 2009
12702 posts
Posted on 8/16/16 at 2:47 pm to
(no message)
This post was edited on 12/28/25 at 8:13 am
Posted by BamaFanInTigerland
Baton Rouge, LA
Member since Sep 2009
787 posts
Posted on 8/16/16 at 2:49 pm to
quote:

Where are these gauges located?


Here are the gauges I'm watching. If Alligator Bayou washes out I would expect water to flow like this based on elevations with the lower areas filling up first. Can check elevations here.





Posted by ProjectP2294
West St. Louis County
Member since May 2007
78494 posts
Posted on 8/16/16 at 2:49 pm to
How is it looking for the neighborhoods on Bluff road north of C Braud? On the I10 side of Bluff?
Posted by Schmelly
Member since Jan 2014
16167 posts
Posted on 8/16/16 at 2:53 pm to
Nobody here has said anything about them. Lasalle is probably sweating & we're pretty sure they're stuck there. Fountain hill is high as shite at the entrance but not sure about low points in the hood
Posted by Ex-Popcorn
Member since Nov 2005
2368 posts
Posted on 8/16/16 at 2:54 pm to
That side is a good 8-10' higher than the spanish lake side of bluff. Real risk is becoming an island. But, that side should stay high and dry.
Posted by Schmelly
Member since Jan 2014
16167 posts
Posted on 8/16/16 at 2:55 pm to
quote:

BamaFanInTigerland


Can u give me a quick lesson on why those gauges are saying they're almost level but aren't?
Posted by BamaFanInTigerland
Baton Rouge, LA
Member since Sep 2009
787 posts
Posted on 8/16/16 at 2:55 pm to
quote:

Alligator/Manchac was 11.84' @ 1p. (.24"/hr)
Bluff Swamp was 11.9'@ 1p. (.24"/hr)


Alligator/Manchac was 11.87' @ 2p. (.36"/hr)
Bluff Swamp was 11.94'@ 2p. (.48"/hr)
Posted by StinkBait72
Member since Nov 2011
2072 posts
Posted on 8/16/16 at 2:56 pm to
I wish you guys the best. The amount of work you guys have done today is pretty damn impressive.
This post was edited on 8/16/16 at 3:08 pm
Posted by ProjectP2294
West St. Louis County
Member since May 2007
78494 posts
Posted on 8/16/16 at 2:56 pm to
Thanks.

Good luck to everyone. Yall are in my prayers.
Posted by Oswald
South of the St. George Buffer Zone
Member since Aug 2011
4391 posts
Posted on 8/16/16 at 2:56 pm to
quote:

gauges

Looks like the Bluff Swamp gauge has bit the dust. Hope that doesn't mean Alligator Bayou Road has failed...
Posted by BamaFanInTigerland
Baton Rouge, LA
Member since Sep 2009
787 posts
Posted on 8/16/16 at 3:00 pm to
quote:

Can u give me a quick lesson on why those gauges are saying they're almost level but aren't?


The gauges are telling you how deep the water is at the gauge in that waterway. It's not a comparison between the two, they are just two different spots that are close together.

We're watching them to see if water is still flowing this way or if the backflow has stopped and started to recede back where it came from.

We want to see them level out and start to go down.
Posted by BamaFanInTigerland
Baton Rouge, LA
Member since Sep 2009
787 posts
Posted on 8/16/16 at 3:03 pm to
quote:

Looks like the Bluff Swamp gauge has bit the dust. Hope that doesn't mean Alligator Bayou Road has failed...


Where are you seeing that? I see a good reading @ 2p. They are usually about an hour behind on the readings.

LINK
Posted by SoloTiger
Member since Aug 2016
10890 posts
Posted on 8/16/16 at 3:09 pm to
Just got about an inch of rain dumped on Springlake in a 20 minute time span Lovely.

LSU weights...you talking 6-7 feet to go across the ground? Or 6-7 feet of elevation?

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