HENRY HUDSON BRIDGE

Project Highlights

The scope of work includes replacement of the last remaining sections of the bridge’s original 1930s-era roadway deck, and removal of columns and toll islands from the former toll plaza on the lower level. An important aspect of the project includes site work (footings, abutments, foundation) and replacement of floor beams, as well as repair of superstructure steel.

Today more than 23 million vehicles cross the bridge per year. The high utilization levels of the bridge required intricate staging, custom-made support structures and special concrete for the bridge deck. Roadway guardrails, lighting and MEP services (fire suppression, toilets, ventilation, heaters) were installed on the adjacent segment of the Henry Hudson Parkway in Manhattan, in both the northbound and southbound directions.

One of the big challenges of the job was to complete the work on time, while following complex MPT (Maintenance and Protection of Traffic) arrangements and conducting work according to safety protocol. Demolition of two levels of roadway and maintenance garage beneath took place while maintaining north- and southbound traffic with the use of contractor designed temporary structural support systems.