The Department of the Navy selected a design-build team that included Stewart to design and construct a new 73,000-square-foot hangar for two V-22 squadrons. This facility includes a one- to two-story office area and a high-roof bay with a five-ton bridge crane to allow indoor maintenance and repair of the aircraft.
Stewart’s civil engineering services included the design of the aircraft hangar, which consisted of a 200-space parking lot, rain gardens, utility design for sanitary and water extension, lift stations, fire protection containment system and storm water/erosion control near the New River. Being within a half a mile of the New River required additional rain gardens to be implemented, a requirement for all coastal counties.
This project was also designed to fit on an existing airfield apron that contained an existing air hangar and tower. In addition to working around those constraints, this project continued to allow flight operations while under construction.
The project site is also located in the Coastal Plain Physiographic Province of the eastern United States, characterized by layers of sands with inter-bedded clays and a shallow groundwater table. These conditions present unique challenges for such a heavily loaded structure, including liquefaction during a seismic event, deep foundations for heavy structural loading, and high wind conditions.
Stewart’s geotechnical, civil, and surveying practices, along with the design-build team, worked to develop cost effective solutions to the site challenges that were intended to keep the project on schedule and on budget.
