OpenBridge

Ever been stuck at a raised bridge that won't come back down? Stressed about being late because a cargo ship is passing through? OpenBridge predicts lift bridge openings on the Saint-Lawrence Seaway up to 3 hours in advance, combining official SLSMC announcements, real-time AIS vessel positions, and a continuous learning model calibrated on thousands of observed lifts. ACTUAL ACCURACY (empirical measurements over 14 days) Over 95% of Seaway lifts are announced in the app before they happen. COVERED BRIDGES • Larocque Bridge (Salaberry-de-Valleyfield) • Saint-Louis-de-Gonzague Bridge (Beauharnois) • Sainte-Catherine / RécréoParc Bridge • Victoria Bridge — car lane and cycling path • CP Railway Bridges 7A and 7B (Kahnawake) FREE • Real-time status of all 7 bridges (Available / Lift expected / Bridge raised) • Interactive map with live AIS vessel positions • Direction, speed, and name of vessels • Automatic detection of Seaway transits • Estimated position during locks (AIS dead zones) • AIS signal freshness indicator (clock icon on stale positions) • Bilingual French / English OPENBRIDGE PRO 30-day free trial, then monthly or yearly subscription. • Exact time of upcoming lifts with full timeline (Lift → Passage → Road clear) and confidence margin (±X min) • List of vessels approaching, nearby, and stopped at each bridge, with individual ETA • Vessel photos (source: Wikidata) with full-screen view • "My Bridges" — pin your favorite bridges for one-tap access • Customizable push notifications — time range (morning, evening, weekends) and configurable lead time from 5 to 60 minutes before each lift • Home screen widget — native iOS WidgetKit and standalone native Android widget that works with app closed, auto-refreshing in background • CarPlay (iPhone) — the app directly in your car, hands-free • Android Auto — Google equivalent • CarPlay voice alerts — the bridge name is spoken through your car speakers ("Bridge X lifting in 5 minutes"), with a 2-min reminder and a road-clear announcement • Commercial / Pleasure / Maintenance / Unknown classification, with specific notes for conditional slots • Planned closures (maintenance, events) directly in the app BILINGUAL FR / EN The app works entirely in French (Quebec) and English. The language follows your device settings automatically. WHO IS IT FOR? • Truckers and drivers — plan your route, avoid the wait • Residents of Beauharnois, Valleyfield, Sainte-Catherine, Kahnawake never miss a lift again • Boaters and sailors — prepare your transit • Curious minds — follow Quebec's maritime traffic live Identification System).