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Comite Diversion Canal won't be done until the end of 2022 according to Corps

Posted on 3/9/21 at 2:14 pm
Posted by goofball
Member since Mar 2015
17163 posts
Posted on 3/9/21 at 2:14 pm
Baton Rouge area residents have been getting screwed to tears on this.

quote:



LINK

$343 million Baton Rouge anti-flood project won't be done until the end of 2022, Corps says

The Comite River Diversion Canal, a long-awaited flood-control channel for the Baton Rouge area, is expected to take a year longer than anticipated to build and won't be finished until December 2022, federal officials say.

The 12-mile-long channel will divert water from the Comite River and other smaller waterways into the Mississippi River.

Discussed since the 1960s and studied intensely since the 1980s, the channel gained new relevance, political momentum and long-needed federal and state funding after the 2016 floods devastated tens of thousands of homes in the Baton Rouge region.

While the canal route beginning between Baker and Zachary is largely a downhill shot due west to the Mississippi, the path cuts through highways, railroads, swamps, pipelines and other obstructions that have complicated its design, cost and construction for years.

U.S. Army Corps of Engineers officials' statement this month confirms the concerns some officials had aired at the end of 2020 about the project's progress.

Last fall, Rep. Garret Graves, R-Baton Rouge, had warned Corps of Engineers officials that he was worried about slippage in the construction timeline and, by mid-November, agency and state highway officials had told a legislative task force that they were trying to determine then if they could hold the original schedule.

So far, the Corps of Engineers has issued four of the 18 different clearing or construction contracts since the $343 million construction phase started in early 2020, corps officials said.

In early February, the Corps of Engineers awarded its latest contract, a nearly $9.5 million agreement with Coastal Contractors Inc., to build a bridge at McHugh Road on the eastern end of the channel, agency officials said.

The state Department of Transportation and Development, one of the non-federal sponsors of the project, has also issued contracts to design and build bridges and other improvements at La. 67 and La. 19 and has plans to open bids for traditional bridge construction job at La. 964 in May, agency officials said. [quote]Message

     


The best part. If you live in EBR or Livingston, you've been contributing tax dollars towards this for nearly 21 years.




Too bad it wasn't in place for the 2016 floods.
This post was edited on 3/9/21 at 2:19 pm
Posted by upgrayedd
Lifting at Tobin's house
Member since Mar 2013
137005 posts
Posted on 3/9/21 at 2:19 pm to
quote:

expected to take a year longer than anticipated to build


-2024
Posted by LSUBoo
Knoxville, TN
Member since Mar 2006
102496 posts
Posted on 3/9/21 at 2:19 pm to
quote:

Too bad it wasn't in place for the 2016 floods.



I don't know that it would have done much good... so much water was coming down the Amite that most of that flood would have still happened.

I'm not saying it would have done NO good, but it wouldn't have been a miracle solution.
Posted by link
Member since Feb 2009
19936 posts
Posted on 3/9/21 at 2:20 pm to
that's not a big deal at all. all we have to do is avoid another 500 year storm until then. we just had one in 2016, so it'll be at least another 495 years until we need to start worrying again. even with a 100 yr storm, we're 95 years away from that too.
Posted by 777Tiger
Member since Mar 2011
82921 posts
Posted on 3/9/21 at 2:20 pm to
(no message)
This post was edited on 3/9/21 at 2:21 pm
Posted by BottomlandBrew
Member since Aug 2010
28386 posts
Posted on 3/9/21 at 2:21 pm to
It's best just to assume it will never be finished and then be surprised when it's finished sometime next decade. Someone made a lot of money fleecing the taxpayers for decades on it.
Posted by dewster
Chicago
Member since Aug 2006
25947 posts
Posted on 3/9/21 at 2:21 pm to
quote:

I don't know that it would have done much good... so much water was coming down the Amite that most of that flood would have still happened.



At some point I read that it would have dropped it by around 10"-14" at Denham Springs. I'll try to find the link.

Yes, some areas would have still flooded....but a shite load of homes that flooded would have not gotten any water.

It would have a bigger impact on Central and Zachary than Denham Springs.
Posted by goofball
Member since Mar 2015
17163 posts
Posted on 3/9/21 at 2:22 pm to
quote:

that's not a big deal at all. all we have to do is avoid another 500 year storm until then. we just had one in 2016, so it'll be at least another 495 years until we need to start worrying again. even with a 100 yr storm, we're 95 years away from that too.



by then maybe the Darlington reservoir will be dug out.
Posted by The Boat
Member since Oct 2008
171720 posts
Posted on 3/9/21 at 2:22 pm to
That's what they're shifting 61 for in north EBR? I was wondering what they were doing there
Posted by LSUBoo
Knoxville, TN
Member since Mar 2006
102496 posts
Posted on 3/9/21 at 2:23 pm to
quote:

At some point I read that it would have dropped it by around 10"-14" at Denham Springs. I'll try to find the link.


Not a chance in hell.

The biggest impact would be in the Baker/Brownfields/Monticello areas.
Posted by goofball
Member since Mar 2015
17163 posts
Posted on 3/9/21 at 2:25 pm to
quote:

I don't know that it would have done much good... so much water was coming down the Amite that most of that flood would have still happened.



Central, Zachary, north Baton Rouge, Baker, etc. would see most of the benefit. But it would have still prevented a lot of heart ache in Livingston given how many homes had less than a foot of water there.

They need this diversion canal + the Darlington reservoir to really control the river.

Posted by TDsngumbo
Member since Oct 2011
45472 posts
Posted on 3/9/21 at 2:27 pm to
I'm an idiot but my mind can't comprehend how this will be diverted to the Mississippi River with the levee in the way. Again, I'm an idiot and far from an engineer. Can someone explain how they're going to build this and prevent backflow during times of high river levels? If installing locks, those locks are going to have to be pretty fricking heavy duty to hold back the Mississippi River.
This post was edited on 3/9/21 at 2:29 pm
Posted by LSUBoo
Knoxville, TN
Member since Mar 2006
102496 posts
Posted on 3/9/21 at 2:28 pm to
quote:

They need this diversion canal + the Darlington reservoir to really control the river.


If you don't control the Amite, you're just scratching the surface.

So either this diversion canal needs to extend all the way to the Amite and divert upstream water from both rivers, or yeah, the reservoir.
Posted by dewster
Chicago
Member since Aug 2006
25947 posts
Posted on 3/9/21 at 2:29 pm to
quote:

Not a chance in hell.

The biggest impact would be in the Baker/Brownfields/Monticello areas.



I know what I saw. I'll try to find the link for the 2016 estimates if I have time later.

I see some earlier estimates that has the figure was 7-8" for a 100 year flood level at Denham Springs, with a larger drop along the Comite. But that's a different scenario than the 2016 flood, which was more severe along the Amite and caused a lot of back flow issues along the Comite, Hurricane Creek, etc.
Posted by CarRamrod
Spurbury, VT
Member since Dec 2006
57951 posts
Posted on 3/9/21 at 2:29 pm to
quote:

It's best just to assume it will never be finished and then be surprised when it's finished sometime next decade. Someone made a lot of money fleecing the taxpayers for decades on it.


well the bridges are under construction now. it is happening...right now.
Posted by LSUBoo
Knoxville, TN
Member since Mar 2006
102496 posts
Posted on 3/9/21 at 2:30 pm to
quote:

I'm an idiot but my mind can't comprehend how this will be diverted to the Mississippi River with the levee in the way. Again, I'm an idiot and far from an engineer. Can someone explain how they're going to build this and prevent backflow during times of high river levels?


A) I don't think there is a levee up there, it's just higher ground.

B) The water is going to have to be pumped over the higher ground to flow down into the MS.
Posted by dewster
Chicago
Member since Aug 2006
25947 posts
Posted on 3/9/21 at 2:30 pm to
quote:

I'm an idiot but my mind can't comprehend how this will be diverted to the Mississippi River with the levee in the way.


A control structure is partially in place already, and there aren't significant levees there. They started work on that section in 2011 but stopped for about a decade.

The 2016 flood happened in the meantime.
Posted by dewster
Chicago
Member since Aug 2006
25947 posts
Posted on 3/9/21 at 2:31 pm to
quote:

well the bridges are under construction now. it is happening...right now.



They've started construction before. Then stopped.
Posted by goofball
Member since Mar 2015
17163 posts
Posted on 3/9/21 at 2:32 pm to
quote:

I know what I saw. I'll try to find the link for the 2016 estimates if I have time later.



I think I've read the same thing, but it was upriver at the Comite/Amite intersection.

Not a silver bullet, but it would have really helped in 2016.
Posted by BottomlandBrew
Member since Aug 2010
28386 posts
Posted on 3/9/21 at 2:33 pm to
quote:

well the bridges are under construction now. it is happening...right now.


The outfall structure west of 61 was started in 2004, so it was happening then too. I'll believe it when I see it.
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