A private billionaire once owned the busiest international border crossing in North America

A private billionaire once owned the busiest international border crossing in North America
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In short: The Ambassador Bridge, a massive suspension span connecting Detroit and Windsor, has long served as a vital artery for continental commerce. Yet, for decades, this critical piece of infrastructure was held in private hands, sparking intense legal battles, political standoffs, and debates over the true cost of duty-free fuel.

Completed in 1929, the Ambassador Bridge was once the world's longest suspension span at 1,850 feet. It emerged as a solution to the logistical failures of 19th-century river ferries, which struggled to manage the massive volume of freight cars moving between Chicago and the Atlantic Seaboard. While early plans for a bridge faced stiff opposition from shipping interests, the project eventually moved forward with backing from Detroit business leaders, including Henry Ford, who famously insisted that private enterprise was the only way to get the job done.

The bridge's history is defined by its unusual private ownership. Acquired by billionaire Manuel 'Matty' Moroun in the late 20th century, the structure became a flashpoint for controversy. Moroun’s company, the Detroit International Bridge Company, maintained a tight grip on the crossing, even as it handled roughly a quarter of all trade value between the United States and Canada. This monopoly-like control led to significant friction with government authorities, particularly regarding the construction of the Gordie Howe International Bridge. Moroun fought the new project for years, fearing it would undermine his lucrative business interests, which included duty-free fuel sales that bypassed significant tax obligations.

The bridge has also been a site of tragedy and tension. Beyond the structural risks—such as a 2000 scaffold collapse that claimed a worker's life—the bridge has faced blockades and ongoing scrutiny over its maintenance. In 2015, Windsor officials raised alarms about crumbling concrete, while legal disputes over access ramps even resulted in the brief jailing of Moroun and his deputy. With the 2026 opening of the publicly owned Gordie Howe International Bridge, the Ambassador’s dominance has finally begun to wane, with early data showing a 30 percent drop in traffic as the region shifts toward a new era of cross-border transit.

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