Specialized in civil, structural, and transportation projects
GSP Widening Interchange 30 to 63
Project Owner :
     New Jersey Turnpike Authority
Location :
     Townships of Stafford, Eagleswood, and Little Egg Harbor, Ocean County, New Jersey
Client(s) :
     New Jersey Turnpike Authority
     Subconsultant to Michael Baker, Jr., Inc.
Services :
     Bridge Engineering
     Construction Support Services
    
    
Project Name   
GSP Widening Interchange 30 to 63

Project Description

A section of the Garden State Parkway was widened to accommodate an additional lane and standard shoulders on each side of the roadway. The widening is towards the open median area. Bridges over the parkway were replaced with longer span structures to accommodate the widening and the bridges and culverts carrying the Parkway were widened and extended.

We conducted feasibility studies, coordinated with NJTA and DEP, and prepared construction documents for the replacement of two (2) bridges on this project.  The two bridges carry Green Street (CR 539), over the Northbound and Southbound Parkway.  The new bridges are multi-stringer structures with Mechanically Stabilized Earth (MSE) wall wrap around integral abutments. The selected design increased constructability, reduced cost of materials and maintenance, and eliminated deck joints. The bridges were replaced in two stages while maintaining two-way 55 mph traffic on Green Street.   At some locations, MSE walls were constructed on top of the existing culverts to retain the widened sections of the Parkway. We performed seismic analysis as per NJTA guidelines. We provided construction support services


 
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