Ambassador Bridge

The Ambassador Bridge, also known as the Ambassador International Bridge, is a suspension bridge that connects Detroit, Michigan to Windsor, Ontario over the Detroit River. It is the busiest international border crossing in North America by trade volume, with 25% of all merchandise trade between the United States and Canada crossing the Ambassador.6 7

The crossing is owned by Manuel “Matty” Moroun via the Detroit International Bridge Company in the United States4 and the Canadian Transit Company in Canada.5

The need for a crossing over the Detroit River was apparent in the late 19th century. The Michigan Central and Great Western railroads operated ferries between Detroit and Windsor but were woefully over capacity, with over 700 freight cars waiting to cross the river on any given day.4 Passengers were also delayed due to capacity constraints.

Eventually, the Michigan Central constructed the Detroit River Tunnel in 1909-10 for trains.8 But a bridge, which is what the Canada Southern Railway and other railroads preferred, was more desirable. While the U.S. Congress requested a study for such a bridge in 1889, no crossing was approved. Adding to the issue was representatives of the shipping industry who opposed any piers in the river as they claimed it would be a hazard to navigation.

The bridge plans were revived in 1919, partially as a way to alleviate shipping concerns and to honor those who served in World War I.8 Designed by the McClintic-Marshall Company of Pittsburgh, Pennsylvania, the new crossing was proposed with a suspended 1,850 feet central span, which would be the longest in the world.1 Construction began on August 16, 1927 and ended on November 6, 1929. The new 7,500 feet Ambassador Bridge opened to traffic on November 15, 1929 at a total cost of $23.5 million.1 9

In 1979, the original owners of the bridge placed the bridge on the New York Stock Exchange and shares were exchanged.2 3 Moroun was able to purchase shares – eventually acquiring the structure.

Originally painted gloss black, the bridge was repainted teal during a five-year repainting project between 1995 and 2000.10

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The Ambassador Bridge, and specifically Moroun, have been the source of much controversy. Although the crossing does not hold a monopoly on freight traffic over the river, it does carry a significant amount.6 It is also the shortest route, via truck, from Toronto to the American Midwest.

In 2010 and 2011, the Wayne County Circuit Court found the Detroit International Bridge Company in contempt for failing to directly connect the Ambassador Bridge to Interstates 75 and 96, and making other improvements as part of the Gateway Project.7 The Gateway Project was a complete realignment of Interstate 75 from Rosa Parks Boulevard to Clark Street in order to directly connect the Ambassador Bridge to the freeway.

The improvements from the freeway to the Ambassador Bridge, which would normally be under the control of the state of Michigan, were left to the private bridge company.11 In January 2012, Moroun and his chief deputy of the company were jailed for non-compliance with orders to complete the ramps. Moroun protested the construction of the ramps as it would siphon all truck traffic from his duty-free store and fuel pumps located at the western approach of the Ambassador Bridge.

After years of legal battles, stalling by Moroun and activism by local residents who were tired of truck traffic rummaging through the Hubbard-Richard neighborhood, the ramps were completed by the Michigan Department of Transportation and opened to traffic in September 2012.12

Abandoned approach ramps to what was to be a parallel Ambassador Bridge.

Abandoned approach ramps to what was to be a parallel Ambassador Bridge.

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