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American Airlines Hangar 2 at O'Hare International Airport
Chicago, IL
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American Airlines Hangar 2 at O'Hare International Airport

Chicago, IL

New construction of a 160k SF hangar for American Airlines to house six 737 aircraft. Constructed from 7,000+ tons of steel and stands eleven stories tall.


American Airlines


25 Months


Project Size

160,000 SF Hangar; 35,000 SF Support Facility; 600,000 SF apron and equipment parking area

Market Sector

Delivery Method



Structural Engineer

Owner Representative/ Program Manager

Project Attributes

  • Sustainable Project
  • Self Perform Project
  • Repeat Client

Project Stories

A Self-Perform Success

Innovative solutions to shorten the project schedule

W.E. O’Neil’s self-perform concrete group took an innovative approach to completing the concrete work on the site. Concrete was poured prior to enclosing the building which allowed the owner to begin using the hangar months ahead of schedule.

Dedication to Sustainability

American Airlines Hangar 2 receives Airports Going Green Honorable Mention

American Airlines Hangar 2 employs a number of sustainable features, including a high-performance building envelope, the use of daylighting, and high-efficiency mechanical, electrical, and plumbing systems.

Water conservation techniques were also implemented, including the use of native or adaptive grass species requiring no permanent irrigation systems.

The overall design, construction, and operation of the new facility reduces greenhouse gas emissions and conserves water and natural resources, while improving the well-being and productivity of American employees.

Tons of structural steel were used during construction
Cubic yards of concrete
Linear feet of underground utilities provide point-of-use aircraft services
Foot opening expanse
SF of new apron/taxi lane aircraft pavement (unless these are specific airport labels/terms that do need to be capitalized
M/WBE firms were awarded prime contracts
M/WBE Participation was achieved, exceeding set goals