Turnpike Interchange

As part of NJTA’s $286 million toll-funded Interchange 14A improvement project, Interchange 14A connects Route 440 and the local Bayonne Street network with the NJ Turnpike Hudson County Extension (HCE). It also provides access to Jersey City to the north and Staten Island to the south via the Bayonne Bridge. In 2007, it was identified as the highest priority studied interchange for needed improvements based on traffic volumes and accident rates. On a typical weekday, approximately 50,000 vehicles including over 6,000 trucks use Interchange 14A to access the HCE. Due to local redevelopment in Bayonne and Jersey City, the Interchange has seen significant growth resulting in congested conditions at the interchange, Route 440 and local roads. Additionally, the area is expected to see future growth based on planned harbor and port terminal projects. The main goal of this project is to relieve congestion within the project limits and the adjacent local roadway network. The existing toll plaza was improved as part of the scope to prepare for future implementation of All Electronic Open Road Tolling.

Text BoxSJH was responsible for the design of the Ramp TP-Peninsula over Pulaski Street Bridge and MSE Retaining Wall No. 18 between Connector Bridge TE and Ramp TP-Peninsula. The new, single span ramp structure features horizontally curved welded steel plate girders and a single course HPC deck. Stub abutments are supported on a single row of 24” diameter concrete filled steel pipe piles with wrap-around MSE walls. The design takes into account the required deck width for future 2-stage redecking, and future bearing replacement without the need for temporary shoring. MSE Wall No. 18 is 516’ long and has over 8,100 SF of exposed area. Due to the existing subsurface condition and the substantial height of proposed embankment fill, ground improvement in the form of a concrete column and load transfer platform will be installed prior to placement of embankment fill. In addition, the area is within the limits of the flood zone, AASHTO #57 stone is placed up to the 500-year flood level to allow for rapid discharge of flood water without damage to the MSE wall and the retained approach roadway.