Blue Water Bridge Overtakes Ambassador as Top US-Canada Truck Crossing

Key Details The Blue Water Bridge in Sarnia has surpassed the Ambassador Bridge as the busiest commercial crossing between Canada and the United States. According to the Bridge and Tunnel Operators Association, the Blue Water Bridge handled over 2.1 million commercial vehicle crossings in 2025, compared to 1.9 million at the Ambassador Bridge. Why It Matters This trend is continuing into 2026, with preliminary data showing 299,000 crossings at Blue Water versus 286,000 at Ambassador. For professional drivers, this shift signals changing routes and potential congestion patterns on the northern corridor. Cost Factor Toll rates appear to be a major driver of this shift. Ambassador Bridge charges $27 per axle for commercial vehicles, while Blue Water Bridge charges only $7 per axle. This significant cost difference makes Blue Water substantially cheaper for trucking operations managing fuel and operational expenses. Passenger Traffic Split It's worth noting that passenger vehicle traffic tells a different story. The Ambassador Bridge remains dominant for cars, handling 3.5 million crossings versus 1.6 million at Blue Water. This suggests trucking and passenger routes are diverging based on economics and infrastructure preferences.