The Concourse T gates are not expected to be complete until 2021.
The airport is seeking Atlanta City Council approval for a contract on the project with a joint venture of Skanska USA Building, New South Construction, Synergy Development Partners and FS 360. It was one of four joint ventures competing for the contract, along with KDLP, Holder-Moody-Bryson and Atlanta Aviation Builders.
The council’s transportation committee voted unanimously in favor of the measure Wednesday.
Preparation work is expected to start later this year, Council said.
In order to make room for the Concourse T extension, which will curve slightly to the west to avoid interfering with a runway protection zone, the airport must relocate the North Economy parking exit plaza, a segment of the Terminal North exit road and an airport fire station. A new fire station must be built nearby before the existing one and other facilities can be demolished to make way for the new gates.
A Delta ground handling equipment shop will also need to be relocated, and the Concourse T extension will also displace some parking. The airport is building an ATL West parking deck next to the Georgia International Convention Center to help make up for lost parking spaces, reachable by SkyTrain.
The money will come from airport funds, including commercial financing and short-term financing.