An artist’s rendering featuring a cutaway of the Dulles Airport station of the Silver Line. (Image courtesy of MWAA)

That walk from Dulles Airport’s Parking Garage 1 — otherwise known as the garage directly across the parking lot from the historic main terminal — is getting shorter.

In fact, it’s disappearing.

Starting Jan. 11, the underground walkway will be shut down to make way for construction of the Dulles Airport Silver Line Metro station. Shuttle buses will be deployed to whisk passengers from their cars to the terminal, saving folks the schlep.

“The expansion of the Silver Line Metrorail to Dulles International will play a significant role in the airport’s future,” said Jack Potter, president and chief executive officer for the Metropolitan Washington Airports Authority, which manages Dulles and Reagan National airports. “This temporary tunnel closure ultimately will result in a much more accessible airport and an enhanced experience for passengers.”

The shuttles will run roughly every five minutes during peak hours and will pick up and drop off passenger at three locations on the side of Garage 1 that faces the terminal. The shuttles will make stops at the main terminal at two locations — near the exit at Door 2 and the exit at Door 6.

Note: While the walkway is closed there will be NO pedestrian access between the garage and the Main Terminal. (see note above regarding shuttle service)

Pedestrian access between the surface parking lot just across from the main terminal will remain open as will the walkway from Garage 2 (located on the west side of the main terminal).

According to MWAA officials, the new Silver Line station will connect to the existing underground walkway between the garage and the main terminal. Work on the connection is expected to last as long as 24 months.

The first phase of the $5.8-billion Silver Line rail project opened in July 2014 and included five stations — four in Tysons Corner and one in Reston, at Wiehle Avenue. The second phase, currently under construction, will include the Dulles Airport station and five others, including two in Loudoun County. It is expected to open for passenger service in 2020.