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Posted on 5/25/21 at 10:55 am to highcotton2
Bayou Manchac is the divider between East Baton Rouge Iberville and Ascension parish. It drains the watershed of each of these areas. The runoff from Baton Rouge should not overflow bayou manchac and drain into the other two parishes.
This post was edited on 5/25/21 at 11:01 am
Posted on 5/25/21 at 11:00 am to pistolpete23
That is some nasty water.
Posted on 5/25/21 at 11:04 am to pistolpete23
Well...this explains why the water around Burbank and Highland really hasn’t moved much.
Posted on 5/25/21 at 11:13 am to sec13rowBBseat28
Wrong. It’s because Manchac is jammed up and needs to be dredged. But it’s a protected waterway so no one is willing to touch the issue. Go check the gauges. Manchac-Prairieville gauge, which is DOWN river is 4 feet lower than Manchac-Alligator Bayou gauge. Something is preventing the free flow of water between those two gauges.
Posted on 5/25/21 at 11:17 am to DownshiftAndFloorIt
quote:
pumping lots of water to the MS River
Bayou Manchac used to flow into the Mississippi River before humans altered the course of Mother Nature. The Army Corps of Engineers really should build a flood control structure where the dam is to relieve the bayou at times like these. Maybe the We-need-a-City-of-St.-George crowd can focus their efforts on building such a structure since the City-Parish won't even consider it.
Posted on 5/25/21 at 11:25 am to TheDude321
quote:
Bayou Manchac used to flow into the Mississippi River before humans altered the course of Mother Nature. The Army Corps of Engineers really should build a flood control structure where the dam is to relieve the bayou at times like these. Maybe the We-need-a-City-of-St.-George crowd can focus their efforts on building such a structure since the City-Parish won't even consider it.
Too big for the city parish to undertake by itself. Very much needs a regional cooperation and agreement to cover those costs.
Posted on 5/25/21 at 11:27 am to TheDude321
Being inter-parish makes it a state issue IMO and the corps of destruction need to fix it. They have many millions of dollars of backlogged projects already though, so it won't happen any time soon.
Posted on 5/25/21 at 11:27 am to meangene323
quote:
The runoff from Baton Rouge should not overflow bayou manchac and drain into the other two parishes.
The map you posted shows how ridiculous it is that a temporary aqua dam can be installed to hijack 80% of a flood plain.
Posted on 5/25/21 at 11:28 am to CatfishJohn
quote:
Curious, what do the SWB pumps in Nola do?
They fail.
Posted on 5/25/21 at 11:31 am to DownshiftAndFloorIt
quote:
Being inter-parish makes it a state issue IMO
Has to. The flood plain is across 3 parishes and the bayou itself is on the parish line. And it's 3 parishes that refuse to cooperate with each other.
I think they need to dredge Manchac, install pumps on the west end of Manchac to move excess water over the levee into the Mississippi River. Then an actual canal to drain the Spanish Lake swamp in a similar pattern in Iberville near Honeywell.
Then an agreement between all three parishes on what is defined as protected watershed that can't be encroached on development or aqua dams.
Posted on 5/25/21 at 11:38 am to pistolpete23
Help me understand... so they are actually moving water from one side of the road to the other side of the road?
Could they not just build a couple of pipes under the waterway and have a pump to do this all the time? Or can be turned on when needed?
Could they not just build a couple of pipes under the waterway and have a pump to do this all the time? Or can be turned on when needed?
Posted on 5/25/21 at 11:44 am to goofball
Eye of the beholder. Looks to me that its ridiculous that a whole bunch of shite can be built to convert a floodplain into a retention pond.
Posted on 5/25/21 at 11:54 am to Taxing Tiger
quote:this
Wrong. It’s because Manchac is jammed up and needs to be dredged. But it’s a protected waterway so no one is willing to touch the issue. Go check the gauges. Manchac-Prairieville gauge, which is DOWN river is 4 feet lower than Manchac-Alligator Bayou gauge. Something is preventing the free flow of water between those two gauges.
Posted on 5/25/21 at 11:56 am to TheDude321
quote:you sure about that.... Given the higher elevations near the MS river as opposed to the lowering elevations along the route of bayou manchac - it would appear the river flowed into bayou manchac most of the time,
Bayou Manchac used to flow into the Mississippi River before humans altered the course of Mother Nature.
except for tidal back flow when river stages were low.
Posted on 5/25/21 at 11:57 am to DownshiftAndFloorIt
quote:
Looks to me that its ridiculous that a whole bunch of shite can be built to convert a floodplain into a retention pond.
It's not a floodplain. It's a swamp.
The whole state is a floodplain. Not all of it is a swamp.
Posted on 5/25/21 at 12:00 pm to highcotton2
quote:
How many pumps are they running to pump 21 million gallons per minute?
Obligatory 350. But it may actually be 350
Posted on 5/25/21 at 12:01 pm to LSUFanHouston
quote:
Help me understand... so they are actually moving water from one side of the road to the other side of the road?
Could they not just build a couple of pipes under the waterway and have a pump to do this all the time? Or can be turned on when needed?
WAFB link Not sure if the locks are open now but this whole situation is shady and has been for years.
Posted on 5/25/21 at 12:03 pm to pistolpete23
Didn’t that road through the middle of there being as high as it is create the first dam/ levee to stop the water from traveling into its natural drainage? Are there properly sized and maintained culverts under the road. I don’t remember seeing them if there are
Posted on 5/25/21 at 12:12 pm to The Implication
quote:
WAFB link Not sure if the locks are open now but this whole situation is shady and has been for years.
The swamp doesn't drain out of Iberville or Ascension on it's own without the lock. The runoff from parts of AP and IP still flow into the swamp naturally. It's not really a problem except that some people decided it would be a great place to put houses and trailers.
Shady as frick. Especially when there's an aqua dam installed on the road on top of the lock to block the flow from EBR and northern Ascension into the swamp.
IMO this is the worst of Louisiana right here. Zero cooperation, a little racism, a big helping of incompetence, plenty of stupidity, and every parish looking after their own interest when they could likely identify a lasting solution and get it funded if they just cooperated.
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