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Started By
Message
Pearl River flooding, spinoff from OT
Posted on 8/29/22 at 9:26 am
Posted on 8/29/22 at 9:26 am
So I have noticed in the last 10 years or so, especially the last 5 or so, that the PR is consistently at flood stage. I could be wrong but I don't remember it constantly being out of it's banks like it is now when I was younger.
What has changed? I am assuming it is having a detriment effect on the timber and habit in PR wma and BC Nwr.
What has changed? I am assuming it is having a detriment effect on the timber and habit in PR wma and BC Nwr.
This post was edited on 8/29/22 at 9:30 am
Posted on 8/29/22 at 10:11 am to GREENHEAD22
So has the Mississippi north of Baton Rouge. They claim that part of the issue is the channel filling in on the lower sections of the river reducing the volume of water the channel can hold basically backing up the water along the delta of MS.
Posted on 8/29/22 at 10:11 am to GREENHEAD22
The control structure that was in place where the West and East Pearls conjoin at one point a little North East if Talisheek has failed and it's allowing much more water to divert down the West Pearl than normal. I believe this is why the West is hitting flood stages faster and more often.
Also, the rivers have not been dredged since before Katrina. Many areas are silting in which is restricting flow and causing backup and flooding...
Those are two of my hypothesis, at least...
Also, the rivers have not been dredged since before Katrina. Many areas are silting in which is restricting flow and causing backup and flooding...
Those are two of my hypothesis, at least...
Posted on 8/29/22 at 10:19 am to Manatee
quote:
So has the Mississippi north of Baton Rouge. They claim that part of the issue is the channel filling in on the lower sections of the river reducing the volume of water the channel can hold basically backing up the water along the delta of MS.
Exactly where do you think all the sediment went when the levee busted in mo in 2011. I promise it didn't go straight out into the gulf of mexico. Read about how much top soil etc was washed off in that area
Posted on 8/29/22 at 10:28 am to cdaniel76
Unfortunately that extra flow down the west doesn't appear to be building any additional marsh in the rigolets area.
Posted on 8/29/22 at 10:39 am to GREENHEAD22
Improved drainage in developing areas. More water making its way to water ways much quicker than ever before.
Posted on 8/29/22 at 10:41 am to TaderSalad
Yea that makes since, wait until the put in the interstate connection through Bush.
Posted on 8/29/22 at 1:33 pm to cdaniel76
quote:
The control structure that was in place where the West and East Pearls conjoin at one point a little North East if Talisheek has failed and it's allowing much more water to divert down the West Pearl than normal. I believe this is why the West is hitting flood stages faster and more often.
Also, the rivers have not been dredged since before Katrina. Many areas are silting in which is restricting flow and causing backup and flooding...
Posted on 8/29/22 at 4:29 pm to GREENHEAD22
it just blew out a few months ago. Going to take a while before marsh is built.
Posted on 8/29/22 at 4:46 pm to dpier16
Well the Pearl has been running consistently high for years now. The shooting range in under water more times than not.
Posted on 8/29/22 at 5:44 pm to GREENHEAD22
quote:
The shooting range in under water more times than not.
Not completely true. The range itself doesn't flood. It's the bridge over Indian Bayou at the entrance to the range that floods and causes us to have to close. The range, itself, is nearly 10ft above the grade of the bridge.
But I understand your statement. It is definitely true that we've had to close for high water a good bit more in recent years than years prior.
Also, The WMA website says the range closes when the Pearl River gauge gets to 16ft, but I've been noticing in recent years that it starts overtopping the bridge more closer to 15.5ft.
Posted on 8/29/22 at 6:02 pm to cdaniel76
quote:
but I've been noticing in recent years that it starts overtopping the bridge more closer to 15.5ft.
It was only about 8 inches below the top yesterday.
Posted on 8/29/22 at 8:24 pm to GREENHEAD22
quote:
What has changed?
Lots of things, but primarily:
1. More development means less water getting into the ground and thus more runoff into rivers.
2. Changing weather patterns.
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