New Jersey Department of Transportation Pulaski Skyway Rehabilitation

GPI manages five design engineering teams, ensuring seamless coordination of design efforts across the production of nine separate contracts. The scope of services encompasses structural field evaluation, structural analysis, load rating, and the development of structural rehabilitation and seismic retrofit plans. The detailed designs include conceptual details for a jacking system, as well as highway design, geotechnical engineering, survey and mapping, right of way (ROW) engineering, environmental permitting, drainage design, and utility engineering. The project requires seismic analysis and retrofit design, for which GPI involves 3D modeling, structural analysis for various loads, seismic response spectrum analysis, computation of capacity ratios, and the design of isolation bearings and a conceptual jacking frame.

GPI will be responsible for preparing four distinct construction contracts: 1) Substructure exploration and excavation to confirm as-built conditions. 2) Rocker Bent Investigation Contract, addressing the replacement of nonfunctioning bridge expansion joints and adjacent steel. 3) Superstructure & Substructure Rehabilitation, Seismic Retrofit, and Drainage Improvements (Contract 8B) from Pier 44 to Span 56. 4) Superstructure & Substructure Rehabilitation, Seismic Retrofit, and Drainage Improvements (Contract 8C) from Pier 57 to Span 63.