Project Experience

Cable Supported Bridges

Zakim Bunker Hill Bridge

Zakim Bunker Hill Bridge

The Zakim Bridge is part of the Central Artery/Tunnel Project and carries 10-lanes of traffic over the Charles River in Boston, MA. The bridge is unique among cable-stayed structures in several aspects. Its cable arrangement, slender inverted Y towers, and a two-lane...

Goethals Bridge Improvement

Goethals Bridge Improvement

Signature Cable-Stayed Bridge UnitGoethals Bridge is a 1,800-ft long cable-stayed unit with a 900-ft main span. The 176-ft wide roadway accommodates 3-vehicular traffic lanes in each direction, mass transit corridor, a separate bikeway, and generous shoulders. The...

US Grant Cable-Stayed Bridge

US Grant Cable-Stayed Bridge

This 1,685-ft-long, three-span, two-tower, cable-stayed bridge with a main span of 875 feet replaced the old U.S Grant suspension bridge over the Ohio River at this location. The new bridge features a steel-composite superstructure supported with two cable planes...

Second Tacoma Narrows Suspension Bridge

Second Tacoma Narrows Suspension Bridge

The Second Tacoma Narrows is a 5,979-ft long, 2,800-ft main span suspension bridge with a superstructure height of more than 200-ft above the river high-water elevation. The 78-ft-wide superstructure consists of a space truss with the orthotropic deck that also acts...