Sunnyside Yard, Rail yard in Sunnyside, Queens, United States

Sunnyside Yard is a large rail facility in Queens used for storing and maintaining trains, stretching nearly 1.5 miles across the area. The yard contains over 30 tracks for passenger trains, numerous maintenance buildings, and complex switching systems that allow trains from different rail operators like Amtrak, New Jersey Transit, and Long Island Rail Road to function smoothly.

Built over 100 years ago by the Pennsylvania Railroad as the world's largest coach yard at the time, it originally covered nearly 200 acres. Over the decades it evolved from handling primarily freight to supporting passenger trains, and today major infrastructure projects like East Side Access are modernizing it by creating new tunnel connections to Grand Central Terminal.

The yard shapes the daily rhythm of the neighborhood with trains constantly arriving and departing throughout the day. It remains a visible reminder of Queens' industrial past and shows how rail transport remains woven into the fabric of urban life here.

The facility is accessible via several subway lines including the 7, N, W, E, F, M, and R near stations like Queensboro Plaza and Queens Plaza. Access is restricted by fences around the perimeter, but visitors can observe trains from certain public viewpoints and nearby bridges, particularly in early mornings when train activity is most visible.

The nearby Harold Interlocking is the busiest rail junction in the entire United States with over 780 train movements each weekday. Additionally, a special car wash facility in the southern section of the yard cleans passenger trains before they return to service, showing the behind-the-scenes maintenance work that keeps operations running.