CHICAGO — New renderings show what O’Hare Airport could look like after a large expansion — and the city is asking residents to weigh in on the designs.

The city released renderings showing five proposed designs for the airport’s $8.5 billion expansion. The work would focus on adding a 2.25-million-square-foot “Global Terminal” to the airport, according to Mayor’s Office news release.

Residents and travelers can weigh in on the designs by filling out a survey online, by visiting the Chicago Architecture Center at 111 E. Upper Wacker Drive or by visiting an exhibit at Terminal 2 at O’Hare Airport. Feedback will be taken until Jan. 23 and used to help the city decide which firms get to work on the expansion.

The Chicago Architecture Center will let people view models of the proposed designs for free, though it will charge admission to see other exhibits.

Ultimately, the city will pick one firm to design the Global Terminal and Concourse and another firm to design two satellite concourses.

Blair Kamin, the Tribune’s architecture critic, described the newly proposed designs for the expansion as “all sleekly modern.”

Check out the renderings:

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