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Why is river volume/flow (cubic ft/sec) the only trigger for Morganza and not days......
Posted on 6/5/19 at 8:27 pm
Posted on 6/5/19 at 8:27 pm
Over flood stage?
8
Posted on 6/5/19 at 8:48 pm to Ignignot
Because it is a water flow management system, not a "days at flood stage" management system? What am I missing?
Posted on 6/5/19 at 9:14 pm to Ignignot
So it's an inch above flood stage for 8 days.
What valuable information comes from that?
What valuable information comes from that?
Posted on 6/5/19 at 9:22 pm to Ignignot
Is river volume/flow the trigger for opening the morganza?
Posted on 6/5/19 at 9:25 pm to Ace Midnight
quote:
What am I missing?
Well for one, when you been more than five feet over flood stage for say, um I dont know, one hundred days, that cumulative affect on the levee may not be accounted for if you're waiting to high some extremely high cubic feet per second cap to hit because some power brokers that own spillway land dont want it open.
Baton rouge is gonna frick around and end up losing ExxonMobil and a ton of ports north of NOLA if nothing is done and the powers that be continue to operate that river the way they are.
This post was edited on 6/5/19 at 9:29 pm
Posted on 6/5/19 at 9:36 pm to Ignignot
quote:
Baton rouge is gonna frick around and end up losing ExxonMobil and a ton of ports north of NOLA if nothing is done and the powers that be continue to operate that river the way they are.
Que?
Posted on 6/5/19 at 9:51 pm to Ignignot
Calm down. You’ve been paying attention to the chicken littles way too much.
The reason it has the triggers is because the fed govt (congress I believe) has to set some kind of threashold they needed to meet to be able to open it. Since it’s a federal facility and all. I’m guessing, that at the time, people who know shite decided that nobody would be threatened until those two parameters were met.
Back then the river needed a certain amount of water to reach that height, and to be that height it would be at that flow rate so they went with it.
With the bottom of the river rising from silting, height is being achieved before that flow is there.
The reason it has the triggers is because the fed govt (congress I believe) has to set some kind of threashold they needed to meet to be able to open it. Since it’s a federal facility and all. I’m guessing, that at the time, people who know shite decided that nobody would be threatened until those two parameters were met.
Back then the river needed a certain amount of water to reach that height, and to be that height it would be at that flow rate so they went with it.
With the bottom of the river rising from silting, height is being achieved before that flow is there.
Posted on 6/6/19 at 12:22 pm to Ignignot
Maybe some politicians or highly connected people needed some time to harvest before they opened the gates?
Posted on 6/6/19 at 12:24 pm to Ignignot
What does BR have to do with USACE
Posted on 6/6/19 at 2:06 pm to Ace Midnight
quote:
What am I missing?
High water flow rate has a greater scouring effect upon the river banks. If the water flow rate is too high for an extended period of time, bank erosion may become too extensive and undermine the levee.
Posted on 6/6/19 at 5:00 pm to Ignignot
because the rich and powerful who have influence over these decisions will never allow it to open and flood their fancy hunting/fishing camps there.
they already have a built in scapegoat in the Corps of engineers to be the one who gets sued when the levees break.
COE will get sued out the wazoo and our federal tax payer money will be paid out to make everyone shut up and go away.
costs the politicians nothing and their camps were spared thanks to the thousands who lost everything they own as well as those who may die in the flooding
they already have a built in scapegoat in the Corps of engineers to be the one who gets sued when the levees break.
COE will get sued out the wazoo and our federal tax payer money will be paid out to make everyone shut up and go away.
costs the politicians nothing and their camps were spared thanks to the thousands who lost everything they own as well as those who may die in the flooding
This post was edited on 6/6/19 at 6:17 pm
Posted on 6/6/19 at 5:04 pm to Ignignot
quote:
river volume/flow (cubic ft/sec)
cfps =/= volume/flow.......cfps= volume/time = flow
Posted on 6/6/19 at 5:06 pm to keakar
quote:if USACE wants to open the floodway they will open the floodway. some local politician that would have a camp in morganza doesnt have any pull with them.
because the rich and powerful who have influence over these decisions will never allow it to open and flood their fancy hunting/fishing camps there.
Posted on 6/6/19 at 5:29 pm to CarRamrod
quote:
if USACE wants to open the floodway they will open the floodway. some local politician that would have a camp in morganza doesnt have any pull with them.
sure, politicians dont control what government agency policy is and what actions they do or dont take regardless of any standing policy
you must believe in the tooth fairy as well
Posted on 6/6/19 at 6:13 pm to Ignignot
quote:
Why is river volume/flow (cubic ft/sec) the only trigger for Morganza
It's not the only metric. If it hits 62 feet at a certain gauge they will open it.
Neither metric has been hit, so they aren't going to open it.
Posted on 6/6/19 at 6:19 pm to keakar
Look dude, I do believe good ole boy politics exists in south Louisiana, but they are not going to delay opening a spillway because some politicians camp or other bullshite. The people in charge aren’t perfect but they know more than you do.
Posted on 6/6/19 at 10:26 pm to upgrade
All the people who think the USACE have the best interest of the public in their minds probably dont even realize that the fricking low sill structure moved in 2011.
Hell, they probably dont even know what it is.
Hell, they probably dont even know what it is.
This post was edited on 6/6/19 at 10:29 pm
Posted on 6/6/19 at 10:28 pm to CarRamrod
quote:
USACE wants to open the floodway they will open the floodway. some local politician that would have a camp in morganza doesnt have any pull with them.
quote:
CarRamrod
Did you live your whole life in south la?
Posted on 6/7/19 at 3:53 pm to Ignignot
quote:
Why is river volume/flow (cubic ft/sec) the only trigger for Morganza and not days...... by IgnignotOver flood stage?
Technically it's the river stage (elevation of the top of the water) that determines when they open Morganza. The top of the structure is at a certain elevation over which the river cannot rise without adverse impacts on the control structure itself.
They have developed a relationship of the stage to the flow, or discharge, of the river, but over time, and especially after major events, that relationship changes. That's one of the problems they're having right now, they can't determine a stage from the discharge, or vice-versa, because the geometry of the cross section of the river has changed since the stage-discharge relationship was last updated.
Posted on 6/7/19 at 8:01 pm to WildTchoupitoulas
quote:
Technically it's the river stage (elevation of the top of the water) that determines when they open Morganza
No. It's flow rate at Red River Landing, according to the USACE website.
1.5 million cfs
A proposed clarification to the Standing Instructions was released in 2014 that stated it would be operated to maintain a maximum stage of 57 feet at the structure when the 10-day forecast has the river at 1.5 million cfs.
If it was river stage, why would they state on their website that it's cfs? Why not just say the stage at which it would be operated?
This post was edited on 6/7/19 at 8:03 pm
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