NASHVILLE, Tenn. (WSMV) - Nashville International Airport (BNA) has already seen massive growth lately.

It has gone from ten security lanes to twenty-four, and its fifty stores have expanded to more than a hundred.

The airport isn’t done expanding, however. BNA is planning something even bigger.

Related Coverage: Nashville airport announces plans to double in size with new terminal Live tour: WSMV4 gets first look at new Concourse D Extension at BNA

The airport leadership just unveiled plans for Terminal 2 - a new complex that’s going right next to Terminal 1 on the airport’s south side.

The expansion is part of a $4.5 billion plan that’s transforming BNA into a global gateway for Music City, according to the announcement.

The project will feature five modern concourses, new park

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