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The company went private in 1987 and was sold to Continental Engineering Corporation in 1988. [4] The town of Ambridge, Pennsylvania, was an American Bridge company town (thus the name "Ambridge"), and is near their current headquarters of Coraopolis, Pennsylvania. Both municipalities are on the Ohio River near Pittsburgh, with access to many ...
The Pittsburgh History and Landmarks Foundation, in cooperation with the Riverlife Task Force, the City of Pittsburgh, and Duquesne Light Company, funded and managed the architectural lighting of the bridge. On November 20, 2002, the bridge was lit for the first time. Plaque on the North Shore of the Sixth Street Bridge.
Companies consolidated into American Bridge Company; Company name Headquarters 1 Keystone Bridge Company: Pittsburgh, Pennsylvania: 2 Wrought Iron Bridge Company: Canton, Ohio
The company was founded in 1892 by two graduates of Iowa State College, William H. Jackson and Berkeley M. Moss. [8] The partners initially contracted to have their steel tanks fabricated by Keystone Bridge Company of Pittsburgh, but soon took on a third partner, Edward W. Crellin, who was operating a small fabricating shop in Des Moines, Iowa.
The new suspension bridge was designed by the office of Allegheny County Chief Engineer Vernon R. Covell, with architectural elements designed by Stanley Roush, [8] and the contract for the superstructure was awarded to the American Bridge Company. [20] View of bridge and Duquesne University from the South. The bridge was constructed in 1931–33.
Contracts for the bridge substructure and approaches were awarded to Booth and Flinn, [7] [8] while the Pittsburgh-based Independent Bridge Company was responsible for building the steel superstructure. [9] The bridge foundations were built between January and August, 1929, [10] followed by the steel superstructure. The main cantilever span was ...
The new bridge used the patented Wichert truss design, which the city paid $12,500 to license from the Wichert Continuous Bridge Corporation, [24] and was built by the Fort Pitt Bridge Company. It required 1,920 tons of structural steel, 120 tons of reinforcing steel, and 1,790 feet of iron railing.
The American Bridge Company, the builder and steel supplier for these three bridges, was headquartered nearby, as was the Foundation Company that had the pier/abutment masonry contract. Local election campaigns during the period highlighted the intent to use local suppliers and labor.