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re: Mississippi River Flooding - Links & Pictures in 1st Post
Posted on 5/10/11 at 12:39 am to Croacka
Posted on 5/10/11 at 12:39 am to Croacka
quote:
For every bit of reliable info in this thread, there are four posts of nonsense.
I put a disclaimer. It was interesting to read what was posted. I mean it's freaking wikipedia.
1
Posted on 5/10/11 at 12:41 am to WoWyHi
No doubt, but the whole thread has been that way and it makes the people just jumping in scared to death.
The morganza spillway is not that complex. They will have no problems closing the gates, etc. All of these structures are very well maintained and tested. Scour is probably their biggest fear.
The morganza spillway is not that complex. They will have no problems closing the gates, etc. All of these structures are very well maintained and tested. Scour is probably their biggest fear.
Posted on 5/10/11 at 6:07 am to Croacka
I believe its the ORCS they are/were worried about.
Thats why it is never flowed beyond 30%.
I'll bet the Morganza is too far South and East for it to jump perm. to Atchafalaya; even if there are problems.
Thats why it is never flowed beyond 30%.
I'll bet the Morganza is too far South and East for it to jump perm. to Atchafalaya; even if there are problems.
Posted on 5/10/11 at 6:10 am to trilltiger
quote:
So if there was erosion in 2008, did we do anything to beef it up?
Yes
Posted on 5/10/11 at 6:11 am to loogaroo
quote:
Thats why it is never flowed beyond 30%.
They do not flow it beyond thirty percent because the law says that they cannot. That is the Flood Control Act of 1954, PL 780, 83rd Congress. It has nothing to do with capacity.
Posted on 5/10/11 at 6:13 am to trilltiger
quote:
o basically if the morganza fails then major refineries will shut down permanently.
Pretty much.
Posted on 5/10/11 at 6:16 am to southernelite
quote:
Yes, I read somewhere while Googling, that the natural flow of the river would have eventually combined the Atchafayla and MS River, but that's why the Old River Control was built, the article also stated that if it were to take the natural path, then it would severely digress coastal erosion in LA.
That is pretty much it. Congress and the Corps made the choice that we protect the cities rather than the coast. I am not saying it is a bad choice, but that is the choice that the US has made here.
Posted on 5/10/11 at 6:17 am to WoWyHi
quote:
I can't wait to see how the Morganza reacts with all that water flowing through since it's the first time in 38 years it's had this much pressure put on it.
I was there in 73. The whole levee was vibrating.
Posted on 5/10/11 at 6:19 am to JudgeHolden
quote:
They do not flow it beyond thirty percent because the law says that they cannot. That is the Flood Control Act of 1954, PL 780, 83rd Congress. It has nothing to do with capacity.
I know it has nothing to do with capacity:
Wasn't that law written because they almost lost the river there?
Posted on 5/10/11 at 6:19 am to WoWyHi
quote:
"Studies by the Army Corps of Engineers after the test determined that once opened, it would likely never close again, and could be ripped from its footings, allowing the Mississippi River to jump its banks and flow primarily through the Atchafalaya Basin."
You dang sure will not close it again while the water is high. But the water will drop. If it scours out underneath, then it might leave a channel.
Posted on 5/10/11 at 6:21 am to loogaroo
quote:
Wasn't that law written because they almost lost the river there?
No. That was the law that originally authorized the Old River project. It was a political compromise that had nothing to do with capacity.
Posted on 5/10/11 at 6:22 am to JudgeHolden
quote:
The good news, and it admittedly ain't much, is that all the water going down the Spillway will likely build so more wetlands on the Wax Lake Outlet.
That is one silver lining if there is one in this whole deal.....I fish down there A LOT.....the only thing I'm worried about it the new sediments changing the navigation of the river and possibly preventing the bigger boats getting up the river.....they already have about a 16' restriction at the mouth of the river.
Posted on 5/10/11 at 6:23 am to JudgeHolden
quote:
Wasn't that law written because they almost lost the river there?
Let me give you a better answer. The ORCS was built for Flood Control, pure and simple. It was part of one of the many, many Flood ControlActs that Congress has passed. Is it possible that they were thinking of keeping the Mississippi on course when they passed it? I guess. But nothing I saw indicated that. Someone with greater knowledge may no differently. What I can tell you is nothing in the law says it is anything but flood control.
Posted on 5/10/11 at 6:42 am to JudgeHolden
does anyone know if any roads will be closed if they open up the morganza spillway? I was headed to alexandria this weekend, but i dont know if I10 or 190 would be affected. thanks
Posted on 5/10/11 at 7:01 am to GeauxGoose
190 and I10 should not be affected one bit by opening the spillway. These are bridges people. They are made for water to flow beneath.
It's not gonna look like the Colorado river that far away. It will just seem like a slow rise in elevation.
It's not gonna look like the Colorado river that far away. It will just seem like a slow rise in elevation.
Posted on 5/10/11 at 7:10 am to Croacka
hope this isn't a stupid question but I live in Lake Beau Pre off river road should I start worrying
Posted on 5/10/11 at 7:21 am to Croacka
I haven't seen anyone talk about the severe drought we have been in lately. What affect will this have on the levees if anything? I know the water will saturate the top of the levees eventually, but will the dry land help or hurt? I know the ground will soak up a lot of the flood waters, but what about the levees?
Posted on 5/10/11 at 7:28 am to CootKilla
NOLA as of 0600. I guess the flatline @ 17' is from the BC opening. Then it shoots up.
Posted on 5/10/11 at 7:38 am to LSUtigger07
quote:
hope this isn't a stupid question but I live in Lake Beau Pre off river road should I start worrying
Not a stupid question.
You should at least be concerned. Opening Morganza should help the situation in Baton Rouge, but the unexpected is always possible.
Copy of a LINK from 2 pages back.
Posted on 5/10/11 at 7:57 am to beauthelab
Anyone have any pictures from the levee across from the vet. school from the last day or so?
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