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Pond is leaking underneath concrete damn/weir

Posted on 3/10/22 at 2:09 pm
Posted by djangochained
Gardere
Member since Jul 2013
19054 posts
Posted on 3/10/22 at 2:09 pm


any advice?
Posted by BallsEleven
Member since Mar 2019
6163 posts
Posted on 3/10/22 at 2:18 pm to
Maybe I'm not looking at it right but in your picture it looks like it is leaking over the wall.

Beautiful place btw
Posted by djangochained
Gardere
Member since Jul 2013
19054 posts
Posted on 3/10/22 at 2:21 pm to
thats just an old photo for reference, water is low right now
Posted by Jack Daniel
In the bottle
Member since Feb 2013
25560 posts
Posted on 3/10/22 at 2:26 pm to
Do you see water coming out other side under concrete?
Posted by keakar
Member since Jan 2017
30126 posts
Posted on 3/10/22 at 2:27 pm to
build a wooden wall like structure with plywood and posts just about a foot in front of the old dam, throw tarp in front and over it, then add sand and dirt on water side to seal off water so the old dam is dry, then make any needed repairs and repour concrete higher then it was before, as well as in front of the old dam

after you can remove the fence and tarp or just leave it there to rot away to nothing
This post was edited on 3/10/22 at 2:30 pm
Posted by djangochained
Gardere
Member since Jul 2013
19054 posts
Posted on 3/10/22 at 2:28 pm to
yes, that's how i know its leaking
Posted by BallsEleven
Member since Mar 2019
6163 posts
Posted on 3/10/22 at 2:29 pm to
Seeping or a lot?

I've seen some people use a 2 part epoxy pond sealer for slow seeps that works pretty good. I can't remember the name of it though.
Posted by djangochained
Gardere
Member since Jul 2013
19054 posts
Posted on 3/10/22 at 2:34 pm to
its seeping slowly
Posted by eng08
Member since Jan 2013
5997 posts
Posted on 3/10/22 at 8:31 pm to
Lower water further, let it dry a good bit, hire someone to inject bentonite slurry under/in front/ behind dam.

No easy fix since it’s under the existing dam.

Edit - Could also add in sheet piles then cap with concrete to tie into existing dam.
This post was edited on 3/10/22 at 8:32 pm
Posted by LSUengr
Baton Rouge
Member since Sep 2005
2339 posts
Posted on 3/10/22 at 9:12 pm to
quote:

Lower water further, let it dry a good bit, hire someone to inject bentonite slurry under/in front/ behind dam.


This is the correct answer if you don't want some other structure added to the existing dam.
Posted by cherrycoke
Member since Jul 2020
18 posts
Posted on 3/10/22 at 9:50 pm to
Check this video out from BamaBass on YT. This is part of his pond build series. He uses a 2 part mixture that gels and clogs up the holes in the dam. I don’t know how expensive it is, but seems pretty easy to use.
BamaBass Dam Fix
Posted by safemode
Badstreet USA
Member since Aug 2016
639 posts
Posted on 3/10/22 at 10:34 pm to
I’ve been enjoying the bamabass videos. He’s overdue for another video. i want to se how big Moby gets.
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