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re: Morganza Spillway may or may not open for a 3rd time -- lack of clear info from ACoE

Posted on 6/4/19 at 7:24 am to
Posted by TigahFan4Life
Baton Rouge, LA home of the TIGAHS!
Member since Aug 2007
10996 posts
Posted on 6/4/19 at 7:24 am to
Has anyone shed any light on the effect of the River in Baton Rouge this weekend? The amount of rain is definitely starting to make me wonder. Wife and I walked the levee in st. Gabriel on Sunday, and I would guess the water is about 6-8 feet from the top
Posted by slackster
Houston
Member since Mar 2009
89751 posts
Posted on 6/4/19 at 7:29 am to
quote:

Has anyone shed any light on the effect of the River in Baton Rouge this weekend? The amount of rain is definitely starting to make me wonder.


It takes a shite ton of water to increase the river at its current height. Rainfall in BR is of no real concern for the river since the only way in is the tributaries or rain falling directly on the river.

Rainfall north of BR is of no immediate concern because of Morganza plus the fact the crest has come and gone in many areas already. New rain prolongs the flood event length, but it will need to be historic rain to increase the height.

ETA - I'm skipping some of the specifics of why that's the case, but hopefully you get the idea.
This post was edited on 6/4/19 at 7:30 am
Posted by DustyDinkleman
Here
Member since Feb 2012
18176 posts
Posted on 6/4/19 at 7:33 am to
quote:

New rain prolongs the flood event length, but it will need to be historic rain to increase the height.


Funny you mention that. Many locations in the watershed are looking at two months worth of rainfall in just 7 days.


Posted by TigahFan4Life
Baton Rouge, LA home of the TIGAHS!
Member since Aug 2007
10996 posts
Posted on 6/4/19 at 7:44 am to
Thanks for the info, I appreciate it slackster. Makes me more at ease. My wife has seen the pics up north of the levee breaches and has been nervous
Posted by Duke
Dillon, CO
Member since Jan 2008
36408 posts
Posted on 6/4/19 at 7:52 am to
It's the Ohio that would swing the gauge heights significantly at this water level.
Posted by FLObserver
Jacksonville
Member since Nov 2005
15214 posts
Posted on 6/4/19 at 8:39 am to
quote:

Funny you mention that. Many locations in the watershed are looking at two months worth of rainfall in just 7 days.


And yet we havent had a day of rain in like 3 or 4 months
Posted by Impotent Waffle
Baton Rouge
Member since Sep 2007
10071 posts
Posted on 6/4/19 at 10:24 am to
Why hasn't this thread been stickied? I mean its gonna be a prolonged event involving a lot of people on here...
Posted by notiger1997
Metairie
Member since May 2009
60745 posts
Posted on 6/4/19 at 10:31 am to
quote:

involving a lot of people on here...


What do you mean involving a lot of people on here?
Posted by Bigfishchoupique
Member since Jul 2017
9122 posts
Posted on 6/4/19 at 10:32 am to
Are you questioning our great administrators ?
Posted by TigerstuckinMS
Member since Nov 2005
33687 posts
Posted on 6/4/19 at 10:43 am to
quote:

Are you questioning our great administrators ?

Well, their leader IS a bird.
Posted by Bigfishchoupique
Member since Jul 2017
9122 posts
Posted on 6/4/19 at 10:47 am to
Posted by slackster
Houston
Member since Mar 2009
89751 posts
Posted on 6/4/19 at 12:10 pm to
quote:

Thanks for the info, I appreciate it slackster. Makes me more at ease. My wife has seen the pics up north of the levee breaches and has been nervous


It's all about the volume of water and the watershed where the rain falls.

Imagine 1 inch of rain fell across all of Akransas - every square inch of the 53,179 square miles. The Mississippi River @ Vicksburg is currently draining that much water every 24 hours.

This chart of the Mississippi River in Illinois seems troublesome:



but then you realize that by the time the river widens out in New Madrid, it isn't nearly as severe:



and by the time that water catches up to the Arkansas River discharge near Arkansas City, it just prolongs the crest rather than truly increasing it.


Posted by lsuKountRy
Member since Oct 2018
20 posts
Posted on 6/4/19 at 1:21 pm to
I heard two interesting thoughts yesterday regarding the opening/delay of the opening (yes,trustworthy sources):

1. The delay can be at least partially attributed to our litigious society. If the trigger numbers (on paper) are not actually met by the river, and the Corp opens the gates and the land floods, an attorney will have a field day. (regardless of the flooded land being in a designated FLOODway)

2. the Corp will begin opening the gates if triggers are NOT met only when there is a threat to overtop the actual gates (bt gates and roadway). Should the water overtop the gates this is considered "uncontrolled" and that defeats the purpose of a "Control" structure.
Posted by notiger1997
Metairie
Member since May 2009
60745 posts
Posted on 6/4/19 at 1:30 pm to
quote:

slackster


Excellent post.
Posted by TDsngumbo
Member since Oct 2011
45541 posts
Posted on 6/4/19 at 1:51 pm to
quote:

I heard two interesting thoughts yesterday regarding the opening/delay of the opening (yes,trustworthy sources):

1. The delay can be at least partially attributed to our litigious society. If the trigger numbers (on paper) are not actually met by the river, and the Corp opens the gates and the land floods, an attorney will have a field day. (regardless of the flooded land being in a designated FLOODway)

Figures the damn lawyers and their predatory stance on literally everything would play a role in the ACE decision making while trying to prevent trillions of dollars in flood damage.
Posted by TDsngumbo
Member since Oct 2011
45541 posts
Posted on 6/4/19 at 1:53 pm to
quote:

Why hasn't this thread been stickied? I mean its gonna be a prolonged event involving a lot of people on here...

I RA'd for the sticky when the first announced the Morganza would be opened, figuring that the opening of the Morganza affects thousands of people and it would warrant a sticky.

Chicken and his minions have disagreed, though. I don't question their actions - I just act like a good little poster like I'm supposed to do.
Posted by GeorgeTheGreek
Sparta, Greece
Member since Mar 2008
67904 posts
Posted on 6/4/19 at 1:57 pm to
Wake me up when the Control Structure fails. Otherwise...
Posted by TigerFred
Feeding hamsters
Member since Aug 2003
27666 posts
Posted on 6/4/19 at 2:40 pm to
You want a thread stickied for more than six months for something that is going to happen one day.

Yeah not going to happen.

It's not like people can't find the thread. Get your throng out of your crack and and the crack of your 2316547631 alters too.

Posted by ksayetiger
Centenary Gents
Member since Jul 2007
69710 posts
Posted on 6/4/19 at 2:44 pm to
quote:

Get your throng out of your crack


Pics?
Posted by tigerinthebueche
Member since Oct 2010
36978 posts
Posted on 6/4/19 at 2:45 pm to
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