Excavating the Foundation

Since we are starting from scratch, we want to make sure the foundation will hold up for the long-term. We have had many houses over the years where foundation settlement was a problem. So, we started with new soil borings at our site. One taken to 25′ depth, the other hand bored (due to access limitations) to 6 feet. Not surprisingly, given our proximity to the river, neither boring hit a solid base. ┬áThe geotech┬áreport and our engineer recommended excavation of the native soils, which were high in expansive clays, down to three feet below natural grade. So, today we have a large hole in the ground. Plan is to bring in new non-expansive fill, compact it, and prepare for the foundation forms.
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