You also need to consider the freeze line for your part of the contry. If you
live in the north where it gets really cold, the
concrete needs to be below the frost line so it doesn't freeze and crack.
The water doesn't really matter that much if you use one of those cardboard
tubes and mix the concrete so that it will cure in the
presence of added water. They do that all the time on beach houses!
Joe
MJSUKEY@cs.com wrote:
>
> Started building my pole barn last weekend so that I can move the Triumphs
> out of the garage. I dug 4 foot deep holes for the post with the intention
> of putting 6 inches of gravel in the bottom followed by a 6 inch pad of
> concrete on top of which I would place the poles. Well, I found that the
> water table is at 3 foot. The last foot of the holes filled with water. So
> now my thoughts are to fill the hole up to the water with gravel and then the
> 6 inches of concrete and follow with the pole. Short of the matter is the
> poles will be at 30 inches instead of 36. To all those that do this sort of
> thing, am I doing the right thing??? FYI I am in northern Ohio.
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