The Eads Bridge on the Mississippi River, the first major bridge built primarily of steel, was constructed by one of American Bridge Co.'s antecedents in 1874.
American Bridge Company was founded in April 1900, whenJ.P. Morgan & Co. led a consolidation of 28 of the largest U.S. steel fabricators and constructors.[5] The company's roots extend to the late 1860s, when one of the consolidated firms,Keystone Bridge Company, built theEads Bridge atSt. Louis, the first steel bridge over theMississippi River and still in use. In 1902, the company became a subsidiary ofUnited States Steel as part of the Steel Trust consolidation.
The company pioneered the use of steel as a construction material; developing the means and methods for fabrication and construction that allowed it to be widely used in buildings, bridges, vessels, and other plate applications.[citation needed] It went on to do work across the nation and around the world.
During World War II, the company built warships for the U.S. Navy. In 1944, American painterThomas Hart Benton recorded the construction and launch of LST 768, producing numerous drawings and a painting,Cut the Line.[6]
The town ofAmbridge, Pennsylvania, was an American Bridgecompany town (thus the name "Ambridge"), and is near their current headquarters ofCoraopolis, Pennsylvania. Both municipalities are on the Ohio River near Pittsburgh, with access to many steel suppliers, as well as to waterborne and rail transport, to allow shipment of components and subassemblies.
In October 2020, American Bridge Company was acquired by Southland Holdings LLC, a Grapevine, Texas-based infrastructure company, for an undisclosed amount. At the time of the purchase, Southland stated that the company would keep its name and local staff.[8]
^Historic American Engineering Record. The firm listed as thebuilder of a project is usually not thedesigner. In most cases, the bridge designer or building architect does not select the construction company, which is chosen by the owners/developers. The designer and the contractor work together closely to get the job done.
$328 millionUSD
