OpenBridge

Atik Design

In-app purchases

About this app

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).

What’s new

Bug fix for notifications