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re: $130 million approved for Maurepas Swamp river diversion project today
Posted on 2/13/20 at 1:32 pm to Grassy1
Posted on 2/13/20 at 1:32 pm to Grassy1
Diversion will not run 12 months of the year. Only 6 months.
Diversion will not build land. Not its goal. Not a need there.
Speck fishing will be pushed south a little at times.
Redfish will be mostly unchanged.
Bass fishing and sacalait fishing and bream fishing will get a big boost.
Right now the swamp is basically a dead zone home to a gars and the invasive giant duckweed from hell.
The water from the diversion will hopefully help flush out some of that crap to allow life under what is not solid mats of that crap.
The water will help up Oxygen levels in the swamp and drastically increase oxygenated water that won't kill the fish that live in the swamp. Fish stress levels will go way down. Fish kills will go way down. Areas that are not hypoxic will go way way up.
Of all the project to restore the coast this one would not be super high on my list. Mostly the area is changing not washing away... yet.
Of all the project to restore the coast this one will be the closest to a slam dunk in accomplishing its goals. Just need the gov't to follow through.
This project should fix all the trouble it is designed to fix and not require any further projects in the future, unlike so many other coastal projects such as barrier island restoration just as an example.
Diversion will not build land. Not its goal. Not a need there.
Speck fishing will be pushed south a little at times.
Redfish will be mostly unchanged.
Bass fishing and sacalait fishing and bream fishing will get a big boost.
Right now the swamp is basically a dead zone home to a gars and the invasive giant duckweed from hell.
The water from the diversion will hopefully help flush out some of that crap to allow life under what is not solid mats of that crap.
The water will help up Oxygen levels in the swamp and drastically increase oxygenated water that won't kill the fish that live in the swamp. Fish stress levels will go way down. Fish kills will go way down. Areas that are not hypoxic will go way way up.
Of all the project to restore the coast this one would not be super high on my list. Mostly the area is changing not washing away... yet.
Of all the project to restore the coast this one will be the closest to a slam dunk in accomplishing its goals. Just need the gov't to follow through.
This project should fix all the trouble it is designed to fix and not require any further projects in the future, unlike so many other coastal projects such as barrier island restoration just as an example.
2
Posted on 2/13/20 at 1:34 pm to Tiger Prawn
quote:
think the issue with Maurepas Swamp is that with it being cutoff from the Mississippi River by the river levees,
This is the big ultimate issue, but theres really no feasible way to completely address it. Youd have to dynamite every river control structure/levee all the way up and let it do it's own thing.
Even if we did that, itd probably shift west and all that would end up being salt water anyway.
Posted on 2/13/20 at 1:40 pm to omegaman66
quote:Folks need to realize this. Just like Caernarvon, it’s about freshwater.
Diversion will not build land. Not its goal. Not a need there.
Posted on 2/13/20 at 1:49 pm to jimbeam
quote:and restoring some pre-levee flowages
quote:
Diversion will not build land. Not its goal. Not a need there.
Folks need to realize this. Just like Caernarvon, it’s about freshwater.
Posted on 2/13/20 at 2:30 pm to omegaman66
The Maurepas/Hope Canal Diversion will pump out up to 2k cfs and the Covent/Blind River Diversion will pump out another 3k cfs of freshwater for a total of 5k cfs of new freshwater into the entire Maurepas estuary which in turn will push more freshwater into Lake Pontchartrain.
The real game changers though for the East side of Louisiana will be the Lower Breton Sound Diversion (50k cfs) and Upper Breton Sound Sediment Diversion projects (250k cfs) into Lake Borgne. Mid-Breton is expected to pump between 5k and 35k cfs year round with much higher amounts during the high water periods of the Miss River.
The Upper Breton will pump 250k during high period with an avg cfs of around 75k to 100k cfs year round.
Lake Pontchartrain and Lake Borgne will become freshwater lakes with brackish water in Lake Borgne towards the eastern fringes of Miss and MRGO rocks south of Hopedale. The saltwater fishery will absolutely change from what we are all used to as it will move further south and east. The Upper Breton Diversion is where the fight is going to happen with the Oyster Fisherman because the oyster reefs in St. Bernard Parish will be pushed far south and to the east.
The real game changers though for the East side of Louisiana will be the Lower Breton Sound Diversion (50k cfs) and Upper Breton Sound Sediment Diversion projects (250k cfs) into Lake Borgne. Mid-Breton is expected to pump between 5k and 35k cfs year round with much higher amounts during the high water periods of the Miss River.
The Upper Breton will pump 250k during high period with an avg cfs of around 75k to 100k cfs year round.
Lake Pontchartrain and Lake Borgne will become freshwater lakes with brackish water in Lake Borgne towards the eastern fringes of Miss and MRGO rocks south of Hopedale. The saltwater fishery will absolutely change from what we are all used to as it will move further south and east. The Upper Breton Diversion is where the fight is going to happen with the Oyster Fisherman because the oyster reefs in St. Bernard Parish will be pushed far south and to the east.
Posted on 2/13/20 at 2:36 pm to choupiquesushi
LINK /
This link is a cool read about the man made changes and its effects on Lake Maurepas and Ponchatrain.
I also think it is so interesting that Gen. Jackson closed off Bayou Manchac that connected the Mississippi River to Lake Maurepas before the Battle of New Orleans. Crazy to wonder how things would be different.
This link is a cool read about the man made changes and its effects on Lake Maurepas and Ponchatrain.
I also think it is so interesting that Gen. Jackson closed off Bayou Manchac that connected the Mississippi River to Lake Maurepas before the Battle of New Orleans. Crazy to wonder how things would be different.
Posted on 2/13/20 at 2:40 pm to MrLSU
quote:just like it changed dramatically with levees and channelization.....
Lake Pontchartrain and Lake Borgne will become freshwater lakes with brackish water in Lake Borgne towards the eastern fringes of Miss and MRGO rocks south of Hopedale.
Posted on 2/13/20 at 2:43 pm to SpillwayRoyalty
quote:
closed off Bayou Manchac that connected the Mississippi River to Lake Maurepas
check your facts on this one. manchac never was a consistent distributary of the mississippi river except during extreme flood events. manchac is on the cut bank (high side) of the river. people attempted to connect the 2 rivers permanently but it wasn't feasible.
travel upriver on manchac by boat and watch how it peters-out.
Posted on 2/13/20 at 3:19 pm to mack the knife
Oh I did not know that. Thank you I will look more into that.
Posted on 2/13/20 at 3:23 pm to SpillwayRoyalty
not to hijack the thread, but the history of manchac is pretty interesting. it's been an international border between various countries territories a few times.
Posted on 2/13/20 at 6:47 pm to mack the knife
With all of the diversions. In ten years saltwater fishing on the east side of the river is going to be terrible
Posted on 2/13/20 at 6:58 pm to Higgysmalls
So Higgy 100 years ago where u think all that water went?
Posted on 2/13/20 at 7:40 pm to MrLSU
quote:
he Maurepas/Hope Canal Diversion will pump out up to 2k cfs and the Covent/Blind River Diversion will pump out another 3k cfs of freshwater for a total of 5k cfs of new freshwater into the entire Maurepas estuary which in turn will push more freshwater into Lake Pontchartrain.
My understanding is that convent blind river diversion is dead. And that this is an alternative to it. Not in addition to it.
Posted on 2/13/20 at 8:12 pm to omegaman66
As of Oct of 2019 it was still moving forward pending the approval of the dollars.
Posted on 2/13/20 at 8:20 pm to choupiquesushi
Will this diversion cause silting to the immediate south?
Posted on 2/13/20 at 8:51 pm to MrLSU
quote:
As of Oct of 2019 it was still moving forward pending the approval of the dollars.
Serious question, no malice, do you have a link?
Posted on 2/13/20 at 9:39 pm to omegaman66
Posted on 2/13/20 at 9:46 pm to MrLSU
quote:back out to where they used to be
oyster reefs in St. Bernard Parish will be pushed far south and to the east.
Posted on 2/13/20 at 10:35 pm to MrLSU
quote:
LINK from Dec 3, 2019
USACOE. PO-68 Project from Oct 2019
Thanks for the links. I am not saying I am right but I think I am. Please correct me if I am wrong. What I see in your links are projects that aren't necessarily funded or ever will be funded.
They always have by design more projects than they plan to build. They whittle them down to just a few.
Listed projects doesn't mean they even plan on building them.
Again. I am not an expert, just someone that is interested, so if ANYONE can show that convent blind river project is being funded I would be happy to find out I am wrong.
Posted on 2/14/20 at 7:23 am to omegaman66
Thanks for all the positive things that this will do, but I'm still curious as to how this will affect the flow of the tributaries of Lake Maurepas.
So it's only going to be open 6 months/year. I'm guessing when the Mississippi is high (Spring?). Will this affect those contributing rivers when they're high?
Just curious. Ya' know?
So it's only going to be open 6 months/year. I'm guessing when the Mississippi is high (Spring?). Will this affect those contributing rivers when they're high?
Just curious. Ya' know?
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