Can anyone direct me to a detail for a dual foundation, piers abutting a stem wall/slab on grade?
We are located in a small mining town in SW New Mexico, CZ4B. The original 1920’s structure was built on piers on a sloping site. A poorly built addition will be removed/torn down as no consideration was given to run off and erosion of the sloping site.
Begin by removing the addition. Pour a stem wall to a height matching the subfloor of the original structure. Then backfill and compact to form a level terrace for the addition. Stone retaining walls would continue the terrace from the far ends of the stem wall across the site and tie into the garden terraces. We would end up with a terraced building site and a house half build on piers and half on a slab on grade. The original structure on piers will not be enclosed with any type of skirting.
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