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Projects

Park Avenue Viaduct

Preserving a Century-Old Steel Viaduct

Originally built in the 1890s, the steel viaduct spans 1.25 miles along Park Avenue from East 100th Street to the Harlem River Lift Bridge. At the time of the renovation, it carried nearly all Metro-North trains into and out of Grand Central Terminal — carrying approximately 600 trains and 160,000 passengers daily.

In 1992, the Metro-North Railroad, Metropolitan Transportation Authority, and the City of New York selected Bechtel as the construction manager for the rehabilitation of the Park Avenue Viaduct and the historic Harlem-125th Street Station — an essential link in New York’s commuter rail system.

Minimizing Disruptions for Commuters

 Modernizing the steel structure involved replacing the deck, upgrading support structures, and improving track geometry — all while keeping trains and commuters moving. With three of the four tracks remaining active during rush hour, space for construction was extremely limited. At times, it required the team to carefully coordinate the movement of 500 tons of steel in an area no larger than 4,000 square feet. Despite these constraints, Bechtel completed the six-year effort on schedule.

Putting Safety and Community First

Bechtel implemented extensive safety protocols and worked with local agencies to ensure the well-being of the team, commuters, and nearby residents. The team also prioritized minimizing disruption in the Harlem neighborhood by managing construction noise, maintaining traffic flow, and preserving pedestrian access. Accessibility improvements were a key part of the rehabilitation, including the installation of elevators to make the Harlem–125th Street Station fully ADA-compliant.

We really emphasized safety for our workers as well as for area residents.”

Russ Reeder

Russ Reeder

Environmental, Safety & Health Supervisor