http://renovatedsm.com/node/281 Comments for "Digging the Foundation Hole" en http://renovatedsm.com/node/281 Nothing is as simple as it seems. About a third of the way into digging the hole for the new foundation, I got a call from the trackhoe operator. He informed me that he was concerned about the soil he was finding below the surface. He kept digging and I called an engineer to inspect the soil. That afternoon the engineer called back and said we had a foundation hole full of "shale". Shale is a type of expansive soil, meaning that it expands and contracts with varying moisture levels. This is not good for a foundation to sit on! http://renovatedsm.com/node/281#comments Site Work Under Construction Mon, 14 Jul 2008 09:17:54 -0700 RenovateDSM 281 at http://renovatedsm.com