Sioux Valley Hospital Parking Facility Number 2 - SOUX Falls, SD Description: This 1010 car parking facility is 357,500 sq. ft. in size, includes underground parking for 100 cars. It is a post-tensioned structure sealed with micro-silica, pre-cast towers and glass back elevators. This multi-tiered, four bay facility with a sloping helix is connected to the hospital campus by an underground tunnel. All parking stalls accommodate full sized cars.