Concreting fence post

JPGO

I want to set a gate post in the ground & concrete it in.
My problem is I have dug a hole 3' deep x 12" dia. and the hole has filled with water.
I have been able to pump the water out but in 20 min's. it has filled back up with water.
Can I still set this post if I get most of the water out & maybe dump a bag of Quikrete Concrete Mix in the hole & then fill the remainder with regular concrete mix in the hole?


Thanks

DangerMouse

Take a strong garbage bag, pour a little in the bottom of it and then set it in the (as empty as possible) hole and carefully finish pouring into that.

That should displace the water and allow the concrete to set properly.

Of course, there are other ways too.... I'm just cheap.....

DM

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JPGO

Thanks for the Advice.
You did mention there were a couple other ways to set this post in concrete to where the water would not be a problem.
Would you mind telling me what they might be for the do-it-selfer?

Thanks

DangerMouse

I'm not positive, but I'm sure they make sono tubes for watery areas such as yours.
You could use 8" pvc with a big @$$ cap glued on the end too, I guess?
It'd probably do it... this is, of course, dependent upon the type and weight of the gate you are putting on it.

DM

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JPGO

This post is 4" steel pipe & I would have it in this 3' hole and the hole is about 10-12" dia. but I will have a 16' metal gate hanging on this post. The gate's weight is appox. 200# so I want to be sure the post is going to be set firmly in the ground so the post does not start to tilt.

Thanks

DangerMouse

That doesn't seem to me to be enough concrete to hold that much weight.
Guys? Maybe we need a 'concrete' sub-forum?

DM

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JPGO

What is a Concrete Sub forum?

Thanks

DangerMouse

We just added 2 new sub forums, Insulation and Doors and Windows. I was simply suggesting maybe we need a separate sub forum for Concrete as well, since we get a lot of varying questions about it. For a 16' gate, I'd be more inclined (personally) to dig a bigger hole and drop a 55 gallon drum down it and fill THAT with concrete! But I am not a pro either. The guys here may (and probably will) have better suggestions.

DM

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Bondo

Ayuh,... I'd think you'll want atleast an 18" hole, down to below the frost line,..
Maybe 2'....

As for the Water,..
Dry it enough to open the hole, 'n square the base, set the pole, 'n dump in the pallet of bagged dry-mix concrete....
Tamp it into place as you fill the hole...
No need to premix it, there's already Plenty of water....
As you dump in the dry mix, the water will displace outa the hole...

DangerMouse

2 feet? frost line? typo perhaps?

DM

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JPGO

I couldn't dig a hole as big as a drum and 18" is still pretty big. I could add a slab of maybe 6" thick and about 3' sq. to the back of the post using re-n-forcement rod which I have.

Thanks

Bondo

I'm thinkin' 18", 2' Diameter, Down to below frostline...

The 55 gallon drum is perfect,... That's 2'x3'...
Nice square corners at the bottom too...
Have to go another foot deeper around here though...

DangerMouse

oh... duh...

DM

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JPGO

So do you all think the 6" slab about 3' sq. would work?
Our coldest day this winter was about 22 Deg. F and I have lived here for over 50 years and never had the ground even freez 4" deep.
So what do you think?

Thanks

Ravenworks

I would weld a square to the bottom of the post,anyway you look at it you need this to act as a counterweight.
The lazy person that I am ,I would call up the redi-mix plant,get a yard 7 sack and be done with it.