Manhattan-Queens Ramp

on the Robert F. Kenndy Bridge (RK73)

Design-Build

40°47’50.4″N 73°55’14.8″W / New York, NY, USA

Quick Facts

TBTA

Client

4

Month ahead of schedule

$1.3M

Under budget

170,000

AADT

Ahead of schedule & underbudget

Delivering TBTA’s second and largest design-build project

The 47-year-old elevated MQ ramp structure is part of the RFK Bridge, a critical piece of New York City’s infrastructure that carries vehicular, commercial, and pedestrian traffic and services to three of the City’s most densely populated boroughs. Halmar was responsible for the design and replacement of the existing 54,000 sf elevated ramp to support HS-25 live load, new seismic standards, and 50-year service life criterion. Work included widening a portion of the ramp and closing the gap between the Queens-Bronx Mainline and the MQ ramp. Ramp approaches were reconstructed, and the bridge superstructure drainage system was upgraded. Demolition and reconstruction of substructure and superstructure components was executed while maintaining traffic flow and protecting the areas below the structure. Innovative traffic management methods, temporary structures, and new pier cap designs resulted in 1 month ahead of schedule completion and $1.3M under budget.