The Thousand Islands Bridge connects Alexandria Bay, New York with Lansdowne, Ontario across the St. Lawrence River. It is a key crossing for travelers between upstate New York and eastern Ontario, consisting of two spans connected via Hill Island. The crossing handles both passenger vehicles and commercial traffic year-round.
Best times to cross: Weekday mornings and early afternoons are typically the lightest. Summer weekends and tourist season bring increased volumes as travelers explore the scenic Thousand Islands region on both sides of the river.
Lane types available: Standard passenger vehicle and commercial truck lanes. NEXUS available at this crossing.
Northbound (US to Canada): The US approach on NY-12 shows traffic feeding the bridge from Alexandria Bay. Southbound (Canada to US): The Canadian approach on Highway 137 via Hill Island shows conditions on the Ontario side of the crossing.