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Message
re: On the back side of Alligator Bayou...Parish ordered evacuation (Aug 15th)
Posted on 8/17/16 at 4:21 pm to LSUaFOOL
Posted on 8/17/16 at 4:21 pm to LSUaFOOL
quote:
has slowed pretty good on the Ridge... at least at the house. Take note I'm on the highest natural ground.
How's my aunt and uncle looking? I've seen a few photos of the place. They went up about 3-4 high with sand bags.
1
Posted on 8/17/16 at 4:21 pm to StinkBait72
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Posted on 8/17/16 at 4:24 pm to StinkBait72
quote:
That would be the peak correct?
Mathematically and logically, sure, but I'm not a hydrologist so who knows.
The issue for people on the other side of the road is not necessarily the peak. The issue is how much longer will the water be above the road period, and relief may not come there until the water has receded below 11 feet or so. In other words, just because water is flowing back towards Bayou Manchac/Amite doesn't mean it will immediately stop flowing over the road too. It will continue to flow in directions that are lower than it, whether that be Bayou Manchac or over road if the water is still higher than the road.
Posted on 8/17/16 at 4:31 pm to slackster
Understood. The peak is by no means the end especially for those a ways down near Ridge and 74. As Fool has said, a lot of the water from the South will likely need to roll back through ridge to get back out to the lake.
If the guard is trying to hold the water in so they can control the emptying of the basin then it may take even longer. This is what the news caster's said, but I don't know if that is official. They may be just be putting the Bags on the Manchac side due to the uneven ground on the lake side.
If the guard is trying to hold the water in so they can control the emptying of the basin then it may take even longer. This is what the news caster's said, but I don't know if that is official. They may be just be putting the Bags on the Manchac side due to the uneven ground on the lake side.
Posted on 8/17/16 at 4:31 pm to XxxSpooky1
quote:
How's my aunt and uncle looking?
They look good from here. I'd say about foot and a half. Not sure how much is leaking by tho.
Posted on 8/17/16 at 4:36 pm to Schmelly
quote:
buses to evac prison
Just got back from Harahan and passed a bunch of buses with police escorts, would imagine that's the prison.
Gramercy, Lutcher exits are closed on I-10
Coworker said the street drains are bubbling in Belle Terre (LaPlace), meaning back flow
This post was edited on 8/17/16 at 4:39 pm
Posted on 8/17/16 at 4:39 pm to StinkBait72
What they said on WBRZ doesn't make sense. The swamp side of the road is lower than the Manchac side. When Manchac stops overflowing the road, the water isn't going to jump over alligator bayou.
They are mistaken. The bagging is to slow the ingress to the swap.
They are mistaken. The bagging is to slow the ingress to the swap.
Posted on 8/17/16 at 4:44 pm to BamaFanInTigerland
quote:
Alligator/Manchac was 12.57' @ 3p. (.24"/hr)
Bluff Swamp was 12.59'@ 3p. (.12"/hr)
Eighth drop at Bayou Fountain (15.00').
Alligator/Manchac was 12.59' @ 4p. (.24"/hr)
Bluff Swamp was 12.61'@ 4p. (.24"/hr)
Quarter inch drop at Bayou Fountain (14.98').
Posted on 8/17/16 at 4:49 pm to slackster
Questin for amateur hydrlogists out there, I've traeled down Manchac Road to Alligator Bayou nad notced how they have let Manchac Bayou fill in from the point it meets Alligator Bayou locks Westward.
If they would have maintained Manchac as they have from Alligator Bayou to the Amite River the same way from alligator Bayou to the Mississippi River and put a pumping station at the levee, how much would that help to alleviate flood waters?
Manchac is so choked up from La. 30 to alligator Bayou that it's nothing more than a big ditch. It's not even canal size anymore. Would the extra capacity provided by a well maintained Bayou Manchac and a large pumping station at the levee be a significant help to folks?
If they would have maintained Manchac as they have from Alligator Bayou to the Amite River the same way from alligator Bayou to the Mississippi River and put a pumping station at the levee, how much would that help to alleviate flood waters?
Manchac is so choked up from La. 30 to alligator Bayou that it's nothing more than a big ditch. It's not even canal size anymore. Would the extra capacity provided by a well maintained Bayou Manchac and a large pumping station at the levee be a significant help to folks?
Posted on 8/17/16 at 4:53 pm to sprig
quote:
It's been pretty level since last night. I wouldn't worry to much.
Thanks!
Posted on 8/17/16 at 4:57 pm to StinkBait72
quote:
I would imagine the flow would then begin to turn and we may see signs of the water going down later in the day as it flows back to the Amite
Just passed over on I10 and could see the water still running back into AG side of the interstate. But at a very slow rate. Hopefully task all reverses very soon.
Posted on 8/17/16 at 5:05 pm to BamaFanInTigerland
quote:
Alligator/Manchac was 12.59' @ 4p. (.24"/hr)
Bluff Swamp was 12.61'@ 4p. (.24"/hr)
Quarter inch drop at Bayou Fountain (14.98').
Dumb question: Why is the Bluff Swamp height higher than the Alligator/Manchac reading? It is flowing into the swap, which would lead me to believe the swamp is lower.
Posted on 8/17/16 at 5:07 pm to BamaFanInTigerland
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[/URL][/img] That's better
Posted on 8/17/16 at 5:08 pm to dyslexic
Just an indication of how its dropping on Alligator Bayou Rd (Manchac Highlands side), water was over the "5" late Monday
Posted on 8/17/16 at 5:11 pm to Gsatterw
quote:
Why is the Bluff Swamp height higher than the Alligator/Manchac reading? It is flowing into the swap, which would lead me to believe the swamp is lower.
That's not the swamp itself but a different river gauge labeled Bluff Swamp.
Posted on 8/17/16 at 5:13 pm to MNCscripper
where are those images from? My house is just a hair north. Would be nice to have a good areal image. We bailed out 8 hours ago.
Posted on 8/17/16 at 5:15 pm to doubleb
quote:
Manchac is so choked up from La. 30 to alligator Bayou that it's nothing more than a big ditch. It's not even canal size anymore. Would the extra capacity provided by a well maintained Bayou Manchac and a large pumping station at the levee be a significant help to folks?
I believe it would. I also think dredging out spanish lake and using it as a big arse retention pond with an outflow to the Miss River and some big pumps would be helpful. that way we have somewhere to store the water and pump it over the miss river levee
Posted on 8/17/16 at 5:20 pm to LSUaFOOL
****** holy shite. First time I've come down 74 to 73 today instead of bluff to c braud. Uhhhh, water is up like a mofo on 74. It's gonna be creeping in the road around mosse point pretty soon
Posted on 8/17/16 at 5:21 pm to Schmelly
Could be 1 less exit out pretty soon
Posted on 8/17/16 at 5:22 pm to Schmelly
That water is going around me. Mosse pointes ponds are almost full & that little church that was dry yesterday got about 2 feet in it AGAIN
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