WSP Congratulates MTA on Major Milestone for Park Avenue Viaduct Replacement Project

NEW YORK, July 28, 2026 - WSP is celebrating a significant milestone achieved by the Metropolitan Transportation Authority (MTA) on the Park Avenue Viaduct replacement project, a transformative infrastructure program that modernizes an essential asset within the Metro-North Railroad system.

The milestone marks the completion of all superstructure replacement work on the Viaduct, which carries four Metro-North tracks between East 115th Street and East 132nd Street in East Harlem. The project was completed 60 months ahead of schedule and $195 million under budget while maintaining Metro-North service throughout construction.

WSP, one of the world’s leading professional services firms, served as program management consultant for MTA Construction & Development and provided preliminary design services, developed bridging documents for the design-build procurement and delivered design and construction compliance services. The firm's multidisciplinary team also provided oversight of safety, public outreach, quality assurance, testing and inspection.

"The Park Avenue Viaduct is essential to the region's mobility and economic vitality, and WSP is proud to have supported the delivery of an investment that will strengthen the Metro-North system for decades to come,” said Tom Scerbo, Metro New York regional executive, WSP in the U.S.

Originally constructed in 1893, the Park Avenue Viaduct serves as the primary route for Metro-North into Grand Central Terminal and carries approximately 98 percent of Metro-North trains, serving as a critical transportation link for hundreds of thousands of daily riders throughout New York and Connecticut. 

In addition to replacing aging infrastructure, the project also delivered new tracks, third rail power systems, signal and communications infrastructure, improved lighting beneath the viaduct, increased roadway clearances at select intersections, a dedicated maintenance walkway for railroad personnel and enhancements designed to reduce noise and vibration in the surrounding East Harlem community. 

"The Park Avenue Viaduct Replacement Project demonstrates what can be achieved through innovation, collaboration and disciplined project delivery," said Garry Nunes, senior vice president, East construction management director, WSP in the U.S. “Our team worked side by side with the MTA to help deliver this critical investment, and it reflects our long-standing commitment to helping the MTA modernize, expand and renew its transportation network.” 

Across New York City's transit and commuter rail network, WSP continues to support the MTA through program management, engineering, construction management, public outreach, planning and technical advisory services, delivering long-term value for riders and the communities the transportation system serves.

About WSP in the U.S. 

WSP is one of the world’s leading professional services firms, uniting its engineering, advisory and science-based expertise to shape communities to advance humanity. From local beginnings to a globe-spanning presence today, WSP operates in more than 50 countries and employs approximately 83,000 professionals, known as Visioneers. WSP in the U.S.’s team of approximately 27,000 professionals pioneer solutions and deliver innovative projects across the transportation, infrastructure, environment, building, energy, water, and mining and metals sectors.