The Solid Waste Authority addition in West Palm Beach consists of two phases of construction. Phase I has a matt slab foundations upwards of 5'5 thick filled with 5,300 yards of concrete and over 500 tons of reinforcing rebar. After the matt slab is placed there are poured in place push walls that are 2' thick and 14' tall at the perimeter of the building. The main matt slab receives a 4" topping slab at the completion of the structural steel which is considered a wear slab for the heavy equipment which will be used on the slab. Phase I consists of another matt slab upwards of 4'0 thick filled with 3,700 yards of concrete and over 300 tons of reinforcing rebar. After the matt slab is placed there are push walls at the perimeter of the building 2'4 thick and 15' tall. This building is considered the Ash building where debris is burned and the ash byproduct is recycled and stored.