188th Street Bridge over Grand Central Parkway Rehabilitation
Queens, New York
New York State DOT, Region 11
TranSystems used Accelerated Bridge Construction (ABC) techniques for the rehabilitation of 188th Street Bridge crossing the Grand Central Parkway. The bridge deck was demolished and replaced over the course of four weekends with the bridge fully opened to traffic during weekdays. The new deck is comprised of precast deck panels that are composite with the existing steel girders utilizing Ultra High Performance Concrete (UHPC). Although the existing steel girders are simple spans, the deck panels are made continuous for live load, utilizing a link slab detail. The design also includes updated bridge load ratings, bridge fatigue strengthening, bridge seismic retrofitting and strengthening, bridge superstructure and substructure rehabilitation design and right-of-way survey and mapping. The rehabilitation extends the useful life of the structure by 30+ years.