Contact Us

Henry Hudson Bridge

First built in 1935, the Henry Hudson Bridge features a fixed steel arch, a double deck with a main span of 840 feet, and viaduct and approach structures on each side of the arch span. Upon inspections…

Tappan Zee Hudson River Crossing

The former Tappan Zee Bridge first opened for traffic in 1955. Due to a significant increase in commuters in recent years, the iconic bridge called for a new design, leading to its transformation into…

Carl J. Olsen Treatment Plant

The Carl J. Olsen Water Treatment plant in Edison, New Jersey has a treatment capacity of 60 million gallons per day, providing water to nearly half a million residents in eastern Middlesex and Monmouth…

Wittpenn Bridge

The new Wittpenn Bridge, a $480 million replacement vertical-lift bridge is the state’s first orthotropic bridge deck, a lightweight structural steel deck plate featuring longitudinal ribs and transverse…