Thanks very much for the responses to date -- you all agree that the best course of action is to extend piles of some type down to better soil. We're therefore considering doing a deep test hole to determine if there is a more favorable horizon within 10' of surface. Based on my understanding...
Though originally a geological engineer, I now practice in the environmental field, and as such, my foundation and soils engineering knowledge is now somewhat faded... so in the hopes of getting some sage advice, here is my foundation rehabilititation issue:
We purchased (at a great price!) a...
