The Long Island Rail Road reached a milestone on Sunday by testing its almost complete East Side Access into the city.

Gov. Kathy Hochul went aboard a LIRR test train heading to Grand Central Terminal. The new 350,000-square-foot station is the largest train terminal to be built in the U.S. since the 1950s.

Officials are hoping the new train service will reduce crowding on commuter rails.

https://twitter.com/GovKathyHochul/status/1454839723042738183?s=20

The new route and station will officially open in Dec. 2022.