Blue Water Bridge Port Huron-Sarnia Border Traffic Cameras
Monitor real-time traffic cameras at the Blue Water Bridge — the now-busiest US-Canada freight crossing, connecting Port Huron, MI to Point Edward/Sarnia, ON. Track I-69, I-94, Ontario Highway 402, and live commercial truck wait times on TrafficVision.Live.
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Point Edward/Sarnia, ON) | Structure: Twin-span bridge (1938 original, 1997 second span) | US Connection: I-94 + I-69 (convergence at bridge) | Canada Connection: Highway 402 (direct to Toronto via Highway 401) | Annual Vehicles: 4.7 million (as of 2011) | Annual Trucks: 1.5 million — second-busiest US-Canada commercial crossing | Commercial Tolls: $7 per axle (vs. $27 at Ambassador — driving Ambassador-to-BWB shift) | Camera Sources: MDOT, Mi Drive, 511 OntarioThe Blue Water Bridge is a twin-span international bridge across the St. Clair River linking Port Huron, Michigan to Point Edward/Sarnia, Ontario. The original span opened in 1938 with a companion span added in 1997. Per Wikipedia, the Blue Water Bridge is the second-busiest commercial crossing on the Canada-US border after the Ambassador Bridge at Detroit-Windsor, carrying approximately 4.7 million vehicles annually (2011 data) including 1.5 million commercial trucks. Per CBC News, the Blue Water Bridge has now surpassed the Ambassador Bridge as the busiest crossing on the Canada-US border due to much lower tolls ($7/axle vs. $27/axle at Ambassador). The bridge connects Michigan's I-94 and I-69 to Ontario's Highway 402, which feeds directly to Highway 401. MDOT, Mi Drive, and 511 Ontario operate extensive approach coverage.
Blue Water Bridge Approach Coverage
I-94 + I-69 (Michigan)
Both freeways converge at bridge
I-94 Port Huron approach from Detroit, plus I-69 from central Michigan — both converge at the Blue Water Bridge plaza.
Highway 402 (Ontario)
Direct link to Highway 401
Highway 402 runs from Sarnia east to London, Ontario where it meets Highway 401 — the Ontario cross-country freight spine.
Pine Grove Avenue / 10th Avenue (Port Huron)
Plaza-area surface streets
MDOT is reconfiguring these intersections to accommodate growing truck queues.
Canadian Plaza
Point Edward inspection
Point Edward, Ontario hosts the Canadian inspection plaza adjacent to the bridge.
US Plaza
Port Huron inspection
Michigan-side inspection plaza with dedicated commercial and passenger lanes.
Smart Freight Corridor
Technology integration
The Blue Water Bridge International Smart Freight Corridor integrates freight tracking, wait times, and inspection optimization.
Major Events Affecting Blue Water Bridge Traffic
- Ambassador Bridge toll shift — ongoing in 2025-2026 as commercial carriers move north
- Gordie Howe Bridge opening 2026 — expected to rebalance Detroit-Windsor freight, potentially reducing BWB pressure
- Toronto Blue Jays / Maple Leafs / Raptors / Argonauts games — Highway 402 → 401 feed Toronto events
- Summer holiday long weekends — Canadian Victoria Day (May), Canada Day (July 1), Labour Day (September); US Memorial Day, Independence Day, Labor Day
Pro Tip: Blue Water Bridge Often Faster Than Ambassador Now
As of 2024-2026, the Blue Water Bridge has overtaken the Ambassador Bridge as the busiest Canada-US commercial crossing due to toll arbitrage. For freight and passenger vehicles heading Toronto/Montreal direction, BWB via Highway 402 → 401 is often faster than the Detroit-Windsor Tunnel / Ambassador Bridge + Highway 401 via Windsor. Use TrafficVision cameras on I-94, I-69, and Highway 402 to compare.
For Michigan-Ontario visitors, see our Michigan traffic cameras guide, Detroit traffic cameras guide, Toronto traffic cameras guide, Ambassador Bridge guide, and I-94 corridor guide.
Track Blue Water Bridge Border Traffic
Browse live MDOT, Mi Drive, and 511 Ontario camera feeds covering both sides of the Port Huron-Sarnia crossing.
VIEW BORDER CAMERAS →How busy is the Blue Water Bridge?
Why is the Blue Water Bridge now busier than the Ambassador Bridge?
Commercial tolls at Blue Water Bridge are $7 per axle, compared to up to $27 per axle at the Ambassador Bridge. This toll differential has pushed commercial truck traffic north from Detroit-Windsor to Port Huron-Sarnia per CBC News.
Are Blue Water Bridge cameras free to view?
Yes. Every camera on TrafficVision.Live is free with no account required. We aggregate publicly operated MDOT and 511 Ontario feeds.
Where does the Blue Water Bridge connect in Ontario?
The Blue Water Bridge connects to Ontario Highway 402, which runs east from Sarnia to London, where it meets Highway 401 — Ontario's cross-country freeway spine to Toronto and Montreal.
What US interstates feed the Blue Water Bridge?
Both I-94 (from Detroit) and I-69 (from central Michigan) converge at the Blue Water Bridge in Port Huron — making it accessible from multiple Michigan metros.
Ready to Monitor Blue Water Bridge Traffic?
Track the busiest US-Canada freight crossing with live MDOT and 511 Ontario cameras — free, instant, no sign-up.
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