Clark provided design-build delivery of two aircraft maintenance hangars for the Marine Corps Helicopter Squadron (HMX-1), the sole helicopter transport squadron for the President of the United States.

Whiteside Complex hangar is 180,250 square feet and houses the Executive, the President’s white-top helicopters, while the Greenside Complex hangar is 56,850 square feet and supports the balance of the HMX-1 fleet. Included within the structures are a Sensitive Compartmented Information Facility (SCIF), precision machine shops, an engine shop with a monorail crane, and a maintenance trainer room capable of holding one HMX-1 helicopter with a two-ton bridge crane. Support facilities, such as aircraft parking aprons, vehicle roadways, and vehicle parking, also were included in the scope of the project.