The Ironton Railroad became part of which Class 1 Railroad Corporation?
Ironton Railroad The Ironton Railroad was a shortline railroad in Lehigh County, Pennsylvania. Originally built in 1861 to haul iron ore and limestone to blast furnaces along the Lehigh River, traffic later shifted to carrying Portland cement when local iron mining declined in the early 20th century. Much of the railroad had already been abandoned when it became part of Conrail in 1976, and the last of its trackage was removed in 1984.
Union Railroad (Pittsburgh) The Union Railroad (reporting mark URR) is a Class III switching railroad located in Allegheny County in Western Pennsylvania. The company is owned by Transtar, Inc., which is itself a subsidiary of USS Corp, more popularly known as United States Steel. The railroad's primary customers are the three plants of the USS Mon Valley Works, the USS Edgar Thomson Steel Works (blast furnaces, basic oxygen steelmaking, and continuous slab casting), the USS Irvin Works (hot and cold rolling mills and finishing lines) and the USS Clairton Works (producer of coke for blast furnace ironmaking).