Fence Post Fixing Ideas

[Smudge01]

That concrete footing is very hard and about 500mm deep, there was a brick wall built on it, which was leaning, so we took it down.

I'd like to put a new fence up but I can't get the posts in behind the footing because of the tree roots, and I can't put it in front of the footing because I would be on the highway.

Thought about bolt down met posts and fixing them into the footing, but don't feel confident they would support a 1600mm high post well enough.

Anyone got any good ideas please?

Thank you in advance.

 

[Tigercubrider]

Could you use bolt down sockets but also use reinforcing bars/braces at an angle into the trees?
Like many old railway fences used to have?

 

[Smudge01]

There are so many roots I can't get anything in or around the ground near those trees.

I was thinking bolt downs, then maybe us a strap around the tree and then strap around the post, but I guess that would move in time.

 

[Mike13]

hire a large auger to drill into the roots for each post?

 

[scbk]

I think the issue is more than just getting a fence post secured.

When the wall was there, I assume all the soil/rubbish was dumped in behind it? It will be partly that stuff piled up behind it, and the trees growing, that has caused the wall to fail.

Get rid of the trees, all the excess soil, then rebuild the wall, or a nice fence?
The site needs levelled first.

 

[robinbanks]

If you're amenable to it, installing the posts so they zig zig (use more of the footing width) will mean the fence gains additional strength to resist lateral wind loading so long as the panel design has diagonal support to prevent racking

Personally I think chunky bolt downs will be fine

 

[Why Not Indeed]

Core drill "sockets" into the concrete footings for posts, or for concrete post spurs.
I don't know if you can core drill into something that you can't get out the other side of, but someone who does core drilling would be the person to ask.

 

[Tigercubrider]

I don’t know either, but if you core drill a circular slot, leaving a core still attached at the base, could you chisel it out by fragmentation?

 

[foxhole]

Secure sleepers to top of concrete then secure posts ontop with bolt down post supports. Weight of sleeper and being bolted down will give a strong foundation.