Open Hopper, Ore Car, 70 Ton

History: The bottom-dump ore car was developed in the late 1930s for use by Lake Superior ore railroads. It is a highly specialized railcar, measuring only 24 feet long and having a capacity of 70 to 80 tons. The 24 foot lenght was designed to be compatible with the 12 foot pocket spacing of the gravity-fed ore docks and the 12 yo 24 foot hatch spacing of the Great Lakes ore-carrying ships. These cars discharge into every other pocket.

The first 70 ton cars came to the DM&IR in 1937. 70 ton cars (with taconite extensions) are still in use today on DM&IR (CN) although they are getting pretty worn out. BN built new taconite cars in the 70's to replace the 70 ton NP and GN cars.

Railroad/Company: This set of items is comprised of more than one name. Please look at the component items for details on the specific roadnames and/or manufacturers.