The Seaway International Bridge connects Massena, New York with Cornwall, Ontario via twin spans crossing the St. Lawrence River through Akwesasne Mohawk Territory. It is a key crossing for travelers between northeastern New York and eastern Ontario, handling both passenger vehicles and commercial traffic.
Best times to cross: Weekday mornings and early afternoons are generally uncongested. Summer tourist season and holiday weekends can bring notable delays.
Lane types available: Standard passenger vehicle and commercial truck lanes. NEXUS available on both sides.
Northbound (US to Canada): The NY-37 camera at Massena shows real-time US-side approach traffic. The north bridge camera provides visibility of vehicles heading toward Canadian Customs. Southbound (Canada to US): The south bridge camera shows conditions approaching the US plaza.