Gordie Howe International Bridge Officially Opens: Timeline of North America's Longest Span

Understand the full story behind Gordie Howe International Bridge Officially Opens: Timeline of North America's Longest Span in our detailed breakdown.

Constructing the crossing demanded nearly a decade of coordinated logistical execution across international borders. The Windsor-Detroit Bridge Authority (WDBA) oversaw the public-private partnership alongside private consortium Bridging North America.

1. Foundations and Soil Consolidation (2018, 2020): Southwest Detroit’s Delray district and Windsor’s Brighton Beach feature soft clays and historic industrial fill. Contractors drilled deep shafts up to 130 feet into bedrock, sinking massive drilled shafts lined with concrete to secure the tower footings.
2. Tower Slipforming (2021, 2023): Using self-climbing formwork, crews poured the two 220-meter towers continuously. The vertical legs angled inward, forming an arch shape before merging into single upper towers where the internal cable anchor boxes sit.
3. Deck Cantilevering (2023, 2025): The bridge deck extended into empty air piece by piece. Teams used derrick cranes to lift steel deck segments weighing hundreds of tons from barges below. As each segment joined the roadway, ironworkers connected opposing stay cables to maintain balanced equilibrium.
4. Mid-River Closure (June 2024): Crews placed the final mid-span piece, officially connecting the steel framework between Canada and the United States.
5. Border Plaza and Systems Integration (2025, 2026): Construction shifted toward the twin 130-acre inspection plazas, modernizing toll systems, intelligent traffic controls, and security screening centers on both shores.

Despite supply chain squeezes and strict cross-border public health restrictions throughout 2020 and 2021, the project kept moving forward, opening to active commerce in mid-2026.