Massena Terminal Railroad

The Massena Terminal Railroad was incorporated in May 1900, to connect a power plant of the St. Lawrence Power Company to the Rome, Watertown and Ogdensburg Railroad and Grand Trunk Railway at Massena. The New York Central Railroad took over rail operations for the MTR in 1915, with the latter remaining owner of the physical infrastructure.

Significant traffic was carried by the Massena Terminal Railroad during the construction of the St. Lawrence Seaway; new tracks were laid to support the project, and then removed upon its completion. When the company had its bridge across the Grasse River replaced in 1946, it included an Alcoa-designed all-aluminum bridge span that was reportedly the first in the world.

The New York Central Railroad announced an agreement to purchase the MTR from Alcoa in 1966, with Alcoa citing "improved operating efficiencies" as the reason for the sale. Alcoa ultimately continued to own the railroad until 2005, when it was purchased by shortline holding company RailAmerica. The railroad was assigned to RailAmerica's Northeast Region in 2008. RailAmerica was itself purchased by fellow shortline holding company Genesee & Wyoming in 2012, which became the Massena Terminal Railroad's owner. The railroad received a $1.6 million grant from the New York State Department of Transportation in 2013 for infrastructure improvements.

The company's primary customer is an Alcoa facility in Massena. The MTR connects this facility with a CSX Transportation line also in Massena. In 2008, the company reported approximately 4,300 carloads. As of 2024, the Massena Terminal Railroad has a total of 3 miles (4.8 km) of tracks.