- 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: Back flooding and built up neighborhoods
Posted on 1/21/20 at 8:53 am to The Swindler
Posted on 1/21/20 at 8:53 am to The Swindler
quote:yes, I know it has. I used to live in TLAWO. Friends live off Babin. I know they fought that development for a very long time to no avail. Just like we unsuccessfully tried when St. Jean apts. were built.
This area had been flooding for close to 20 years, routinely gets 3-5ft of water on on a heavy rainy weekend...in2016 it got close to 10ft of water. Three developers were denied building in this area, but Corbin Ladner convinced someone that he would be bring in extra dirt and build bigger lots. The back end of Lake at White has never flooded, it will begin to when "the Sanctuary" is finished being developed. 4 houses are for sale on the first street next to the new development $$$$$$$$$$$$$ fixes problems and $$$$$$$$$$ creates problems
0
Posted on 1/21/20 at 8:54 am to doubleb
quote:and even with weep holes i do not believe they let that fill consolidate. There was no overburdened soil either like you saw at the walmart development. I predict that neighborhood will have foundation issues in 5-10 years. If i was WCK i would set up shop across the street.
Look at the massive neighborhood in the field between highland and Burbank across from the soccer fields. That thing was a pond in 2016 and now it’s about 10 feet higher than it was before. Where did they get that much dirt and where will the water now go?
They dug a massive lake along the Bayou and used that dirt
Posted on 1/21/20 at 8:58 am to nola000
Lol,no.
Developers (residential) in St. Tammany add fill to A lots on a regular basis to bring them up to C.
Nobody says a damn thing.
Commercial stuff does get more scrutiny, primarily b/c of NIMBY.
Developers (residential) in St. Tammany add fill to A lots on a regular basis to bring them up to C.
Nobody says a damn thing.
Commercial stuff does get more scrutiny, primarily b/c of NIMBY.
Posted on 1/21/20 at 9:02 am to AtticusOSullivan
quote:
Some land is right below the flood plain, developers build land above flood plain elevation and Build on it. Why would they not be allowed to do this? As long as proper stormwater management infrastructure is put in place it shouldn't be an issue.
Because it has an adverse affect on existing neighborhoods that may have never flooded before. I don't care what BS Engineers spews about development has a net zero change to drainage. They are full of it.
Posted on 1/21/20 at 9:02 am to nola000
quote:
St Tammany definitely makes you mitigate. You see it all over the place. Everywhere there's these developments there's huge catchment areas.
I see these a lot. However, they are always already full of water. How are they gonna catch water if they are already full?
Posted on 1/21/20 at 9:11 am to CarRamrod
quote:
and even with weep holes i do not believe they let that fill consolidate. There was no overburdened soil either like you saw at the walmart development. I predict that neighborhood will have foundation issues in 5-10 years. If i was WCK i would set up shop across the street.
You are right about the fill not being compacted. I hope the foundations were designed for that.
Yes, Walmart loaded up their site for several years and did it right. I’m surprised they didn’t have to build a pond.
Posted on 1/21/20 at 9:14 am to Bedhog
quote:oohhh so you are a NIMBYer. GTFO with that shite. You know how stupid you "we dont want progress" people sound.
No, I think there should be no new development in an area that flooded.
Posted on 1/21/20 at 9:15 am to BottomlandBrew
Good topic. It seems like there may be some experts in here.
Exactly how effective is a retention pond at managing stormwater? Same question for a five year old retention pond?
What are the proper contemporary BMP's (that apparently aren't being used) to employ for managing runoff during construction?
How does one go about having a flood study done?
Exactly how effective is a retention pond at managing stormwater? Same question for a five year old retention pond?
What are the proper contemporary BMP's (that apparently aren't being used) to employ for managing runoff during construction?
How does one go about having a flood study done?
Posted on 1/21/20 at 9:20 am to NYNolaguy1
quote:
Theres a hydrological reason they do this...
Thank you!
For all the plant operators and housewives that don't understand, engineers use math and shite to not flood your existing property. But if it normally floods, it is still going to flood.
The Interstate acting as a dam during a 500-year storm doesn't help.
Posted on 1/21/20 at 9:26 am to RougeDawg
Care to explain to the simpletons how these "engineers" use their "math and shite" to prevent flooding?
Leave the 500 or 1000 year storm out of the equation, because it is the exception instead of the norm. Use a typical Louisiana 4" to 8" 24 hour or 36 hour rainfall, and explain how this "math and shite" causes properties adjacent to or nearby a new development that never flooded from this type of storm event, to actually flood.
Leave the 500 or 1000 year storm out of the equation, because it is the exception instead of the norm. Use a typical Louisiana 4" to 8" 24 hour or 36 hour rainfall, and explain how this "math and shite" causes properties adjacent to or nearby a new development that never flooded from this type of storm event, to actually flood.
Posted on 1/21/20 at 9:27 am to RougeDawg
It's not that they don't do the math on what should not flood and what should or that they are idiots as I am sure they do everything they can to not have any area flood. Having said that, it's just that the drainage has to compensate for the lack of greenspace and natural saturation coupled with raising the new structures above the existing structures. A retention pond will not cut it alone and adding to the drainage will stop other areas from draining like they used to. It is a domino effect.
There is actual proof of houses never flooding in their 40 years of existence and all of a sudden flooding when a higher development goes up. So if they were doing the right thing, this should not happen. The EBR metro council only stops developers when they don't kick back enough money to them. It is not about proper planning.
There is actual proof of houses never flooding in their 40 years of existence and all of a sudden flooding when a higher development goes up. So if they were doing the right thing, this should not happen. The EBR metro council only stops developers when they don't kick back enough money to them. It is not about proper planning.
Posted on 1/21/20 at 9:31 am to AtticusOSullivan
quote:
As long as proper stormwater management infrastructure is put in place it shouldn't be an issue.
Wait. Are you saying city/county/parish planning officials have a system of checks and balances with regards to planning? I thought developers simply did whatever they wanted and let the consequences fall where they may. Fascinating!
Posted on 1/21/20 at 9:32 am to browl
Look at how low some of those old neighborhoods are.
If you drive down a residential street and see the roadway is above the slab for many homes, you're gonna flood. People didn't put much, if any fill in, before they poured a slab. Then, the parish came through and paved or repaved the roadway, effectively causing a dam effect.
Unchecked development is definitely a part of it, but crappy development to start with is also at fault.
If you drive down a residential street and see the roadway is above the slab for many homes, you're gonna flood. People didn't put much, if any fill in, before they poured a slab. Then, the parish came through and paved or repaved the roadway, effectively causing a dam effect.
Unchecked development is definitely a part of it, but crappy development to start with is also at fault.
Posted on 1/21/20 at 9:33 am to chryso
quote:It is about the release of water. that graph someone posted earlier, if you can understand it, kinda explains it. As it rains all water is routed to these catch basins. then usually there is a weir of some sort that releases the water at a certain volume based on how much water is in the basin. so these basins rise and fall and hold the runoff so it doesnt all go down the outfall at once.
I see these a lot. However, they are always already full of water. How are they gonna catch water if they are already full?
This does the same thing as what the neighborhood designs of the 70s,80s and 90s did. Except their catch basins are big culverts under the roads so you cant see them.
This post was edited on 1/21/20 at 9:35 am
Posted on 1/21/20 at 9:35 am to statman34
quote:So tell us how you got all your knowledge of the subject? Did you go to rain run off school?
It's not that they don't do the math on what should not flood and what should or that they are idiots as I am sure they do everything they can to not have any area flood. Having said that, it's just that the drainage has to compensate for the lack of greenspace and natural saturation coupled with raising the new structures above the existing structures. A retention pond will not cut it alone and adding to the drainage will stop other areas from draining like they used to. It is a domino effect.
There is actual proof of houses never flooding in their 40 years of existence and all of a sudden flooding when a higher development goes up. So if they were doing the right thing, this should not happen. The EBR metro council only stops developers when they don't kick back enough money to them. It is not about proper planning.
Posted on 1/21/20 at 9:36 am to browl
For every square foot of fill that is placed a square foot of hole is dug. Most of the time this is the volume between the water surface of a pond to the top of an outfall (pipe or weir). The volume of water released is controlled by the size of the outfalls to match the pre-developed condition.
Posted on 1/21/20 at 9:43 am to doubleb
quote:i dont really remember but they piping under the parking lot could be sufficient in holding the runoff.
Yes, Walmart loaded up their site for several years and did it right. I’m surprised they didn’t have to build a pond.
Posted on 1/21/20 at 9:43 am to CarRamrod
quote:
So tell us how you got all your knowledge of the subject? Did you go to rain run off school?
I watched it happen in multiple locations. It isn't that hard to figure out when nothing else changes except the new development going up what the cause is.
Maybe if our politicians cared more about actually serving the people in the parish they would all attend "rain run off school"
Posted on 1/21/20 at 9:46 am to statman34
quote:So it is the politicians or the new developments? because you seem to be shifting blame here.
Maybe if our politicians cared more about actually serving the people in the parish they would all attend "rain run off school"
Posted on 1/21/20 at 9:46 am to statman34
So the proof is you "watched it happen"?
Page 4 of 7
Popular
Back to top
Follow TigerDroppings for LSU Football News