The footings are formed and full of steel. They step down the hill to provide frost protection. The front wall acts as a retailing wall and is engineered with a five foot footing sticking out from the base of the wall. The weight of the fill on this keeps the top of the wall from being pushed in. There are 3 steel beams that will run under the building each supported by steel columns. You can see the footings and steel for the piers formed every 12 feet on the eave wall.