The first big machinery arrived today, provided by MG Drilling. The foundation is pier and beam with steel beams; therefore, we have a number of deep 18" diameter piers which required mechanical drilling. Apparently, the lot in this neighborhood used to be part of a river basin so the soil (composed of sandy clay) was easy to cut through and the drilling went fast.
We brought in an arborist, Keith Babberney of Arborworks Tree Care to air spade (a hose hooked up to a compressor digs through the dirt by blowing pressurized air) the first 4 ft of depth for two piers located in the critical root zone of the pecan tree.
In the end we were left with 16 of these holes.
Later in the day a crew arrived to put together the rebar cages which will be inside each of the concrete piers. These guys were really fast getting everything in place.