I-81 Viaduct Project Update: Progress Continues at Southern Interchange
SYRACUSE, NY

I-81 Viaduct Project Update: Progress Continues at Southern Interchange
As work continues on one of Central New York’s most significant infrastructure projects, Prudent Engineering remains actively engaged in the I-81 Viaduct Project in Syracuse. We’re providing full-time quality control inspection services for Phase I, Contract 2, a key part of the $385 million effort to transform the city’s transportation network.
This update provides a look at the current status of the work happening at the southern interchange of I-81 and I-481, where demolition, reconstruction, and realignment are well underway. Our inspectors are on-site daily, ensuring all work meets established standards for quality, safety, and environmental compliance.
Recent Highlights and Ongoing Work:
Bridge Construction and Rehabilitation
Construction has progressed significantly on the seven new bridges being built at the interchange. In addition, two bridges undergoing major rehabilitation are located over Rt. 290, and Manlius Center Rd. These improvements are essential for increasing capacity and improving long-term mobility throughout the region.
Brighton Avenue Roundabouts Now Complete
Two new roundabouts have been completed on Brighton Avenue, designed to improve traffic flow and enhance safety in an area previously marked by heavy congestion and complex intersections.
Noise and Visual Barriers Installed
To reduce the impact on surrounding neighborhoods, the project has completed four new sections of noise and visual barriers, totaling approximately 7,500 linear feet. These structures serve to buffer nearby residents from both construction noise and future highway traffic.
Upgrades to I-481 Exit at Route 5
Work is moving ahead on the replacement of the I-481 southbound exit to Route 5. The new design includes a widened, four-lane ramp that will improve access to both eastbound and westbound East Genesee Street, easing bottlenecks and enhancing safety.
Bridge Deck Replacements Over CSX Railyard
In East Syracuse, construction continues on the replacement and widening of bridge decks for both northbound and southbound I-481 lanes spanning the CSX railyard. This work supports the structural integrity of a critical crossing for both vehicle and rail traffic.
Looking Ahead
With multiple components already completed and others making steady progress, the I-81 Viaduct Project continues to move forward on schedule. Prudent Engineering’s role remains focused on maintaining quality oversight, supporting safe construction practices, and ensuring compliance with environmental regulations.
We'll continue to provide updates as key milestones are reached, and additional project phases unfold. This work represents a once-in-a-generation opportunity to reshape the region’s transportation landscape—and we’re proud to contribute to its success.