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Portal Bridge Capacity EnhancementClient: New Jersey Transit   Click image for a larger view.Gannett Fleming is leading a joint venture with two other firms and numerous subconsultants to design the replacement of two and a half miles of Amtrak’s Northeast Corridor between Newark and New York City, the most heavily travelled railroad in the country. This project’s scope involves resolution of significant environmental issues, including land acquisition, wetlands, contaminated sites, and landfills. Our firm is reconfiguring the corridor and associated interlockings through the environmentally sensitive Hackensack Meadowlands. As a result of an accelerated environmental impact statement (EIS) effort, which required detailed coordination with multiple project stakeholders, the work was successfully advanced by the project team. Our firm is leading the final engineering phase of this project, including project management, operational simulation analyses, and the design of trackwork, signals, and traction power. This project aims to eliminate a long-standing bottleneck along the corridor and significantly reduce operational and maintenance concerns. The overall project includes the design of 29 bridges with 124 spans and related civil, track, signal, catenary, and electric traction substation design work. The two-track railroad corridor traversing the existing bridge will be expanded to five tracks and elevated to replace the existing swing bridge with two fixed bridges above the Hackensack River. The new river crossings will consist of two three-span networked tied-arch bridges to allow a 50-foot clearance over the water.
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