- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
re: Mississippi River Flooding - Links & Pictures in 1st Post
Posted on 5/2/11 at 6:35 pm to RhodeIslandRed
Posted on 5/2/11 at 6:35 pm to RhodeIslandRed
this may be a retarded question, but if the river were to jump to the Atchafalaya river, would it eventually go back to its normal route once the water goes down? or would it be a permanent thing
3
Posted on 5/2/11 at 6:37 pm to HeadBusta4LSU
quote:
permanent thing
Posted on 5/2/11 at 6:37 pm to CptBengal
the ATC delta is actually a prograding delta, even w/ the diversion upstream
Posted on 5/2/11 at 6:38 pm to mmill32
quote:
the ATC delta is actually a prograding delta, even w/ the diversion upstream
O hI realize it is, but it is where the Miss. River "wants" to go currently.
We just aren't letting it.
Posted on 5/2/11 at 6:39 pm to HeadBusta4LSU
i remember from a 4000 level GEOL class I took that the flood in '73 cause so much stress on the Old River Locks it actually caused readings on the seismograph at LSU
Posted on 5/2/11 at 6:39 pm to CptBengal
quote:
permanent thing
holy shite balls
Posted on 5/2/11 at 6:40 pm to HeadBusta4LSU
I actually turned in my senior research paper today on the flood of 1927 and the blowing of the Caernarvon Crevasse. I worked 8 months on it and did a lot of research in Hill Memorial Library Archives and City of New Orleans Archives.
If anyone would like to read it, it's about 4300 words. I can post a link to google docs if anyone is interested.
ETA: on second thought, i'd rather email you the link, so if anyone wants to take a gander, give me an email to shoot it to.
If anyone would like to read it, it's about 4300 words. I can post a link to google docs if anyone is interested.
ETA: on second thought, i'd rather email you the link, so if anyone wants to take a gander, give me an email to shoot it to.
This post was edited on 5/2/11 at 6:45 pm
Posted on 5/2/11 at 6:40 pm to CptBengal
I should know this, but how much length wwould it cut off to the GOM? isn't it only like 60 miles or so?
Posted on 5/2/11 at 6:41 pm to GREENHEAD22
quote:
A little bit of a side track but wouldn't the river jumping and start flowing down the ATC river in the long run help with coastal erosion. Not saying that I want it to or it would be good, just wondering
It would be great for building coastline south of Morgan City because the levee system pretty much stops at the GIWW. Only problem with letting the water go down the Atchafalya is Morgan City would be wiped out and the Ports of Baton Rouge, New Orleans, and St Bernard would go out of business.
Posted on 5/2/11 at 6:43 pm to ScottieP
quote:
It would be great for building coastline south of Morgan City because the levee system pretty much stops at the GIWW. Only problem with letting the water go down the Atchafalya is Morgan City would be wiped out and the Ports of Baton Rouge, New Orleans, and St Bernard would go out of business.
is this even a possibility or are we talkin doomsday type stuff like one in a million
Posted on 5/2/11 at 6:46 pm to mmill32
quote:
I should know this, but how much length wwould it cut off to the GOM? isn't it only like 60 miles or so?
We did some sediment work on both rivers and I believe:
From the control structure to the GOM via the Atch River is approx 140 river miles.
From the control structure to the GOM via the Miss River is approx 300 river miles.
Don't quote that it have been about 5 years since that study.
Posted on 5/2/11 at 6:47 pm to CptBengal
quote:
permanent thing
Well at least until the River wanted to "jump" again in a few thousand years.
Posted on 5/2/11 at 6:47 pm to ScottieP
Good question. It will only help land to the east of the Atch River mouth. Longshore currents carry sediment that way. It will take a long long time to make up ground though.
Coastal erosion is occurring because of subsidence from isostatic rebound from the last ice age. The Mississippi can't deposit sediment where it needs it because it's dumping it directly onto the continental slope/rise.
Coastal erosion is occurring because of subsidence from isostatic rebound from the last ice age. The Mississippi can't deposit sediment where it needs it because it's dumping it directly onto the continental slope/rise.
This post was edited on 5/2/11 at 6:50 pm
Posted on 5/2/11 at 6:48 pm to ScottieP
quote:
Ports of Baton Rouge, New Orleans, and St Bernard would go out of business.
Wouldn't it just reverse the flow to 70 to the Atch and 30 passed BR and NOLA? The infrastructure for drinking water and cooling petro-chemical plants would be screwed. Atleast we could catch speckled trout at Audubon Park in the river.
Posted on 5/2/11 at 6:52 pm to HeadBusta4LSU
quote:
is this even a possibility or are we talkin doomsday type stuff like one in a million
It may be a little far fetched but basically you would have the current day Mississippi River flowing through Morgan City and current day Atchafalaya River flowing through New Orleans.
Currently 66% of the total flow passes New Orleans and 33% passes Morgan City. Most say that would be reversed or maybe even less than 33% flowing passed New Orleans.
It is not like the current Mississippi is just going to dry up in New Orleans, but I could not imagine it would be enough for ocean going vessels to navigate upriver to NO or BR.
Posted on 5/2/11 at 6:54 pm to ScottieP
quote:
but I could not imagine it would be enough for ocean going vessels to navigate upriver to NO or BR.
Wouldn't less sediment going down make dredging easier to keep the ports of NO and BR atleast viable?
Posted on 5/2/11 at 6:55 pm to ScottieP
You say that bc of the depth? I was under the impression that from the mouth to BR was all 80 or more ft?
Posted on 5/2/11 at 6:59 pm to GREENHEAD22
I guess it's going to be an interesting few days coming.
Posted on 5/2/11 at 7:01 pm to GREENHEAD22
quote:
Posted by GREENHEAD22
You say that bc of the depth? I was under the impression that from the mouth to BR was all 80 or more ft?
You were under the wrong impression. The channel is maintained at ~44 ft iirc. Whatever it is it is way less than 80.
Posted on 5/2/11 at 7:06 pm to BottomlandBrew
quote:
I doubt that will stop the Corps from having their fun.
Bottomland, I will say my personal opinion is that Maj.Gen. Walsh who is President of the Mississippi River Commission jumped through every conceivable hoop he could to not activate the BPNM Floodway, but at the end of the day he was shackled by circumstances and codified Federal statutes.
EDITED BECAUSE I GOT THE GENERAL'S NAME INCORRECT
This post was edited on 5/2/11 at 7:16 pm
Page 11 of 141
Popular
Back to top
Follow TigerDroppings for LSU Football News