The Port Authority of New York and New Jersey has given the go-ahead for the next phase of JFK International Airport’s multifaceted $13-billion makeover—a $3.8-billion expansion of Terminal 4.

Designed to consolidate Delta Airlines operations into a single terminal, the 50,000-sq-ft project will add 16 gates to the nearly 20-year-old facility—more than offsetting the loss of 11 Delta gates at the nearly 60-year-old Terminal 2, which is scheduled for demolition.

Other elements include a new ticketing hall, check-in concourse, security checkpoints, baggage claim area and bathrooms, as well as renovated passenger waiting areas. Outside, roadway improvements with plaza-style sidewalks will reduce congestion.

According to a Port Authority statement, the project will maintain Terminal 4’s LEED O+M certification via the use of energy-saving equipment and lighting, and infrastructure for rainwater capture and reuse within the building. All new gates will include charging stations for electric ground service equipment, along with a deicing recovery system to capture spent deicing fluid.

Scheduled for completion in 2025, the project is to be financed by JFK International Air Terminal, a subsidiary of Netherlands-based Schiphol Group and Terminal 4’s operator since 1997.

JFK’s modernization program got underway in December 2019 with the start of construction on a 70,000-sq-ft addition to Terminal 8 that is set for completion in 2022. It will reconfigure the check-in lobby to increase capacity by 25%, and provide five more gates for wide-body aircraft.

The program also calls for two new international terminals. New Terminal One, a $7.4-billion, 2.-million-sq-ft facility will rise on the airport’s south side, while a separate $3-billion, 1.2-million-sq-ft terminal to connect with existing Terminal 5. Start dates for those projects have not been announced.

The Port Authority also plans to improve access to and within the airport complex, with two new loop roads, as well as a 50% capacity boost that authorizes $1.5-billion in improvements to nearby roadways, including the Kew Gardens/Van Wyck Expressway interchange.