Register free!


Reply
 
Thread Tools   Display Modes
  #1  
Old 01-18-2014, 09:57 PM
Regal Landscapes Regal Landscapes is online now
LawnSite Member
 
Join Date: Jan 2014
Location: Allentown, PA
Posts: 57
Help on pond dam repair

I have a friend with a small sized pond, there are currently 2 small leaks in the dam that is made with rocks and clay from the excavation of the pond.

There is a tree in the area of the first leak, for that repair I will be removing that tree, roots and all, and draining the pond so I can repack the rocks and clay to make it watertight again.

The second leak is a very small one where water is seeping into the yard. For that one i will be digging out the area and reapacking it with rocks and new clay.

Would you also add any bentonite to the problem areas after they are repacked to help seal them?

Lastly, is this the method you would use for fixing the dam?

Sorry I don't have any pictures
Posted via Mobile Device
Reply With Quote
  #2  
Old 01-19-2014, 07:59 AM
raggs raggs is offline
LawnSite Member
 
Join Date: Feb 2013
Location: fairborn ohio
Posts: 32
How Are You Packing It?
Posted via Mobile Device
Reply With Quote
  #3  
Old 01-19-2014, 09:39 AM
Regal Landscapes Regal Landscapes is online now
LawnSite Member
 
Join Date: Jan 2014
Location: Allentown, PA
Posts: 57
Quote:
Originally Posted by raggs View Post
How Are You Packing It?
Posted via Mobile Device
With the bucket of an excavator
Posted via Mobile Device
Reply With Quote
  #4  
Old 01-20-2014, 07:05 PM
raggs raggs is offline
LawnSite Member
 
Join Date: Feb 2013
Location: fairborn ohio
Posts: 32
First off a natural pond will always have leaks due to nature itself. Crayfish, muskrats beavers etc. will always dig into the walls of the pond. Crayfish are by far the worse though. With that said there is never a guarantee it will be be fixed so you should tell your friend.

The biggest problem will be the tree. Once its removed I wouldn't pack rock with clay. The problem is that the rock will create to big of voids in the clay and compaction will not be tight. Use clay as well as bentonite to fill the hole. In fact if possible it would be even better to premix the two prior to filling the hole so that when water hits the mix the bentonite will swell up to give a water tight seal.

Now if you don't have a supplier of bentonite clay you can always contact a company that digs wells. They usually sell 55 pound bags of it.
Reply With Quote
  #5  
Old 01-20-2014, 07:17 PM
Regal Landscapes Regal Landscapes is online now
LawnSite Member
 
Join Date: Jan 2014
Location: Allentown, PA
Posts: 57
Quote:
Originally Posted by raggs View Post
First off a natural pond will always have leaks due to nature itself. Crayfish, muskrats beavers etc. will always dig into the walls of the pond. Crayfish are by far the worse though. With that said there is never a guarantee it will be be fixed so you should tell your friend.

The biggest problem will be the tree. Once its removed I wouldn't pack rock with clay. The problem is that the rock will create to big of voids in the clay and compaction will not be tight. Use clay as well as bentonite to fill the hole. In fact if possible it would be even better to premix the two prior to filling the hole so that when water hits the mix the bentonite will swell up to give a water tight seal.

Now if you don't have a supplier of bentonite clay you can always contact a company that digs wells. They usually sell 55 pound bags of it.
Thanks for the advice
Posted via Mobile Device
Reply With Quote
  #6  
Old 08-17-2014, 05:32 AM
Fishwhiz's Avatar
Fishwhiz Fishwhiz is offline
LawnSite Member
 
Join Date: Oct 2002
Location: Oregon
Posts: 113
pond construction with bentonite

if you are going to use bentonite clay for pond construction you need to know how to get optimum moisture so you can get over 90% compaction. This means you cannot expect bentonite to work in wet mud.

Also minimize the amount of rock in the fill. They can align to create a leak if there is sufficient rock.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump






Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 11:46 AM.

Page generated in 0.07340 seconds with 9 queries