Infographic Spotlights Steel Story in Building New NY Bridge

Traffic crosses the Hudson River on the new bridge's first completed span. (Photo: New York State Thruway Authority) 

An infographic by High Steel Structures, LLC (an AISC/NSBA member and AISC certified fabricator) showcases the company’s work on the new Governor Mario M. Cuomo Bridge, which replaces the Tappan Zee Bridge across the Hudson River north of New York City. In August 2017, High Steel celebrated the completion of fabrication on its portion of the steel superstructure for the twin cable-stayed bridge, and the bridge’s first completed span opened to traffic. The 3.1-mile-long, $3.98 billion crossing is the largest active bridge project in the nation and a testament to the work and capabilities of America’s steel fabricators, mills and constructors.

The bridge is being built by Tappan Zee Constructors, a design-build LLC composed of Fluor Corporation, American Bridge Company, Granite Construction Northeast and Traylor Bros. Three AISC/NSBA member and AISC certified fabricators, High Steel, Hirschfeld Industries and Canam-Bridges, have together provided more than 110,000 tons of structural steel while playing a key role in the support of more than 7,700 jobs. The project was High Steel’s largest contract to date. The company provided more than 50,000 tons of structural steel for the project, including steel girders, cross frames and other structural elements for the replacement.

And just as the fabrication was provided domestically, so too was the steel production, with 160,000 tons of steel plate for both the superstructure and sheet pilings coming from AISC member ArcelorMittal. The design-build approach generated more than $1 billion in savings compared with the state and federal cost estimates.  

For more information and photos of the project, visit You can also view the free recording of the 2017 NASCC: The Steel Conference session, “Tappan Zee Hudson River Crossing.”