Our architect specified 18" diameter 12" into the bedrock for the piers. We thought the 12' specified into the bedrock by the geo-tech might have been a typo, but unfortunately it is not a typo. One more bit of data. The slope of the bedrock is 17 degrees with approximately 15 feet of soil on...
Unknown foundation of the house. It sits uphill from the proposed deck. We dug down a few feet around the slab and found some type of footings that went deeper.
My point to the geo-tech is that when the big one hit I won't be standing on my deck because it will have been crushed by the...
We are planning a 400 sq foot deck attached to a house that has a hillside out the back. Our geo-eng. spec'd 30" piers 12' into the bedrock. The total pier length would be 27'. The deck would require 4 of these. I have inquired about helical piers. He said they are not for use with lateral...
