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Repairing/replacing pilings for a pier - suggestions needed (DIY)

Posted on 6/16/14 at 1:23 pm
Posted by The Mick
Member since Oct 2010
43055 posts
Posted on 6/16/14 at 1:23 pm
Repairing a pier at our camp (again). I have two questions regarding homemade pilings, appreciate your responses:

1. Other than a 4x4 treated wood, what else do you use for pilings/ mooring poles? (no weight-bearing necessary, just to tie a boat to). This will be in about 6-7 feet. I was thinking of using medium sized PVC and shove it in ground and then pour concrete down it... would that work?


2. We have some old pilings that are broken off just under the waterline. They have been there for 40 years and are suctioned into the bottom, tried pulling out with boat and truck from land, aint happening. Anybody have a method to add a piece on top of the old piling ? Or any other suggestions. (Ideally these would be weight-bearing if we can beef them up enough and extend the walkway)

TIA
This post was edited on 6/16/14 at 1:24 pm
Posted by tenfoe
Member since Jun 2011
6839 posts
Posted on 6/16/14 at 1:28 pm to
quote:

Other than a 4x4 treated wood, what else do you use for pilings/ mooring poles? (no weight-bearing necessary, just to tie a boat to). This will be in about 6-7 feet. I was thinking of using medium sized PVC and shove it in ground and then pour concrete down it... would that work?


Why not just drive a 4x4 in the mud? Would be a lot easier than driving pvc then fillin with cement.

Posted by Motorboat
At the camp
Member since Oct 2007
22664 posts
Posted on 6/16/14 at 1:31 pm to
quote:

Other than a 4x4 treated wood, what else do you use for pilings/ mooring poles?


I went through all of this a few months back. Best option is a good ole 4X4. You can drive it with a man killer pretty easily.

quote:

I was thinking of using medium sized PVC and shove it in ground and then pour concrete down it... would that work?


Maybe but mud will be in the pipe when you sink it and not get displace by concrete.

quote:

Anybody have a method to add a piece on top of the old piling ?


Below the waterline would require some kind of metal fastener that would not do well under the waterline.

quote:

Or any other suggestions. (Ideally these would be weight-bearing if we can beef them up enough and extend the walkway)


Do what we did--drive new pilings near existing pilings and build over the old structure.
Posted by DonChowder
Sonoma County
Member since Dec 2012
9249 posts
Posted on 6/16/14 at 1:52 pm to
quote:

I was thinking of using medium sized PVC and shove it in ground and then pour concrete down it... would that work?
Yes, if you have a pump handy to displace the mud out of the center of the pipe. This is how we did it at my buddy bay house in TX.
Posted by boom roasted
Member since Sep 2010
28039 posts
Posted on 6/16/14 at 1:55 pm to
quote:

Why not just drive a 4x4 in the mud?
This. Built our own pier last summer.
Posted by The Mick
Member since Oct 2010
43055 posts
Posted on 6/16/14 at 2:00 pm to
quote:

Why not just drive a 4x4 in the mud? Would be a lot easier than driving pvc then fillin with cement.
Guess I'll have to but I was thinking the pvc would go in easier. Maybe im wrong
Posted by The Mick
Member since Oct 2010
43055 posts
Posted on 6/16/14 at 2:01 pm to
quote:

Yes, if you have a pump handy to displace the mud out of the center of the pipe. This is how we did it at my buddy bay house in TX.
What about sealing the bottom end of the pvc with wood or whatever so it doesnt fill up with mud and water, is that possible?
Posted by DonChowder
Sonoma County
Member since Dec 2012
9249 posts
Posted on 6/16/14 at 2:13 pm to
Yes, certainly possible but then driving it will get tougher.
Posted by Motorboat
At the camp
Member since Oct 2007
22664 posts
Posted on 6/16/14 at 2:30 pm to
You can have the 4X4's driven in a matter of five minutes. You are over thinking this (much like I did).
Posted by The Mick
Member since Oct 2010
43055 posts
Posted on 6/16/14 at 2:42 pm to
quote:

You are over thinking this (much like I did).


yea i think youre right
Posted by Pepperidge
Slidell
Member since Apr 2011
4311 posts
Posted on 6/16/14 at 3:13 pm to
PVC filled with concrete will snap if leveraged(pushed or pulled on) by a boat
Posted by The Mick
Member since Oct 2010
43055 posts
Posted on 6/16/14 at 3:19 pm to
quote:

PVC filled with concrete will snap if leveraged(pushed or pulled on) by a boat
Good info...thanks. See some rundown marinas use some pvc to make slips. PVC is good to put alongside a finger pier to keep boat from floating under and/or on top of pier in extreme tidal events.
Posted by tigers225
Member since Jun 2008
294 posts
Posted on 6/16/14 at 3:31 pm to
Concrete would be too brittle unless you have some kind of reinforcement steel in it. Would do 4x4s. If you needed 16" wood piling I could get you some for free lol
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