PROJECT

KC-46A Maintenance Hangar & Airfield Apron

We provided full design and construction support services for a new aircraft hangar and airfield apron to accommodate the KC-46A and other wide-body aircraft at Travis Air Force Base.

The 174,300-square-foot hangar has three bays and support space with general purpose shops. The hangar bays have 200 feet of clear span using long-span trusses with conventional structural steel wide-flange framing. The bays accommodate multiple wide-body aircraft, including the KC-46A, C-17 and KC-10. The support space includes the electrical and environmental (ELEN) shop, the hydraulic shop, administrative areas and a break room.

The 11,300-square-yard apron was developed in coordination with the Air Force Civil Engineer Center, Air Mobility Command and the U.S. Army Corps of Engineers. To meet the standard loading criteria for the KC-46A program, a Modified Heavy Load Type C classification was used for the apron infill, hangar access apron pavements and interior hangar slab sections. The aircraft apron included 17-inch Portland cement concrete (PCC) on a 6-inch drainage layer with 8-inch cement-stabilized subbase on 12 inches of compacted select fill.

Client

NAVFAC Southwest

Location

Travis Air Force Base, California

Region

West

Services

Department of Defense

Air Force & Air Force Reserve

Industry

Government & Military

Additional Scope

Site development, including new utilities, airfield pavements, streets, parking lots, anti-terrorism and force protection compliance, and landscaping

Field surveys and investigations, including topographic surveys, lab analysis and reports, and subsurface utility investigations

Stormwater management, including LEED and EISA requirements, via bioretention basins and reduction in paved surface area

Utility systems, including water distribution, firewater distribution, sanitary collection, industrial wastewater collection, gas distribution, bioreactor, groundwater monitoring wells, and electrical/communication system networks

Seismic evaluation studies and seismic upgrade design

Civil and structural engineering