$11.2 million I-81 resurfacing adds more construction in Onondaga County

Drivers on Interstate 81 in Onondaga County are facing another round of construction as an $11.2 million resurfacing project gets underway from the Syracuse exits serving Hiawatha Boulevard, Destiny USA and Bear Street north to Exit 8 in Mattydale. The work covers nearly 20 lane miles and comes on top of the broader I-81 rebuild, adding a fresh layer of disruption to a corridor that has already been under heavy traffic management.

State transportation officials said crews will mill four inches of worn pavement across three lanes in each direction, then lay a new warm-mix asphalt surface. The work zone stretches from exits 5B, 5A and 4B to Exit 8 at U.S. Route 11, with the southbound off-ramp to Hiawatha Boulevard among the ramps slated for resurfacing. Other on- and off-ramps, including 7th North Street, the New York State Thruway and U.S. Route 11, are also part of the project.

The timing adds pressure. NYSDOT had already announced that I-81 northbound in Syracuse would be reduced to one lane from April 27 through April 29, 2026, between Exit 17 at South Salina Street and Exit 18 at Adams Street and Harrison Street for pavement repairs. Together, those restrictions mean commuters could face backups in both the city and the northern end of the county, especially near major destinations and connection points where local traffic mixes with through traffic.

For people trying to avoid the worst delays, the most realistic options are the surface streets that feed the affected exits, including Hiawatha Boulevard, 7th North Street and U.S. Route 11 for shorter trips. Longer cross-county travel may be better served by getting off the corridor altogether and using the Thruway or other regional routes, rather than expecting a clean run through the I-81 work zone. The state has also warned that work-zone speeding fines are doubled, a sign that enforcement will be part of the traffic-management picture.

The resurfacing is technically separate from the larger I-81 Viaduct Project, but it is happening inside the same long transition. NYSDOT says the viaduct project is the largest in the department’s history, a $2.25 billion effort divided into eight contracts, and the planning process began with the I-81 Corridor Study in 2008. The state says the goal is to replace the elevated highway in downtown Syracuse with a Community Grid, while construction in the Northside and Inner Harbor, including Contract 3, is expected to continue through the end of 2026.

That broader rebuild helps explain why a routine pavement job can still feel destabilizing. State and local leaders have framed the I-81 work as an investment in safety, mobility and economic growth, with local hiring tied to a 15% participation goal. For Onondaga County commuters, though, the immediate reality is simpler: another construction season, more lane shifts and a highway corridor that will keep changing shape well into the fall.