Iron Horse Park

Pan Am Railways now own the site and still have their main offices in the park, but the old B&M repair yards and buildings are no longer in operation, although the railroad tracks remain in use as there are a couple of rail customers in the park area.

The employees of the Billerica Repair Shops built a small neighborhood behind the old Faulkner Mills along the railroad line, adjacent to the depot, starting in 1904.

Some of the streets in the neighborhood were built on the old track beds of the Billerica and Bedford Railroad where it ran spur lines between the depot, roundhouse, and the loading dock of the old mills.

[2] Occasionally, a small freight train will run down the old Billerica and Bedford track from the depot to the Salem Road Crossing and switch onto the park's spur line to deliver and pick up cars from customers, including The Boston Globe's distribution plant, and exit the park onto the main Lowell Line and return to Boston.

In the 2020s, the MBTA began constructing a new commuter rail dispatching center at the location[3] to replace a facility near Alewife station which would then be redeveloped.