PARS Tracking · CBSA FPOA 0612
Live RNS status, broker cargo feed, and wait-time data for Canada-bound PARS loads crossing Port Huron, MI → Sarnia, ON.
The Blue Water Bridge is the second-busiest commercial crossing on the northern border and the primary relief valve when the Ambassador Bridge backs up. Two span structures — built in 1938 and 1997 — give it extra commercial lane capacity, and the crossing is particularly important for chemicals, petroleum products, and forest products moving between Sarnia's Chemical Valley and the US Midwest via I-94 and I-69.
PARS for Canada-bound loads clear at CBSA FPOA 0612. Sarnia brokers often pre-file cargo the night before for early-morning arrivals — a PARS that shows no RNS match at 5am is usually a brokerage scheduling gap, not a CBSA delay.
Weekday peaks run 7-10am US-bound and 3-6pm Canada-bound. Overflow spikes whenever the Ambassador Bridge has a closure or multi-hour delay. Winter lake-effect snow occasionally closes the span temporarily for high winds.
Blue Water is one of the few crossings where commercial and passenger traffic run on completely separated spans — the 1997 twin span is reserved primarily for truck traffic, which removes passenger surges from your wait-time calculation.
PARS for Blue Water Bridge is typically filed by brokers in Sarnia, Point Edward, Port Huron, Marysville, London. BorderPro pulls RNS updates directly from CBSA and correlates them with your broker's cargo feed — so "sent but not matched" situations are visible in real time, not discovered at the booth.
The filing rules are identical — the functional difference is that Sarnia CBSA sees less peak surge, so RNS matches tend to arrive slightly faster than at Windsor in the early-morning window.
No — the PARS is tied to a specific port of arrival. If you reroute, the broker must re-file the cargo under the new port code.