Detroit–Windsor Tunnel
vehicle tunnel between Canada and the United States
The Detroit–Windsor Tunnel (French: tunnel de Détroit-Windsor), formerly known as the Detroit–Canada Tunnel, is an international highway tunnel connecting the cities of Detroit, Michigan, United States, and Windsor, Ontario, Canada. Prior to the opening of the Gordie Howe International Bridge in 2026, it was the second-busiest crossing between the United States and Canada, the first being the Ambassador Bridge, which also connects the two cities. The tunnel and bridges span the Detroit River.
Overview
The tunnel is 5,160 feet (1,573 m) long (nearly a mile). At its lowest point, the two-lane roadway is 75 feet (23 m) below the river surface. There is a wide no-anchor zone enforced on river traffic around the tunnel.
The tunnel has three main levels. The bottom level brings in fresh air under pressure, which is forced into the mid level, where the traffic lanes are located. The ventilation system forces vehicle exhaust into the third level, which is then vented at each end of the tunnel.
History
Construction
Construction began on the tunnel in the summer of 1928.
Begin with the source’s own compact description: “Detroit–Windsor Tunnel” is vehicle tunnel between Canada and the United States. The dossier treats that line as a proposition to test through Detroit, Windsor and Tunnel, not as a finished interpretation.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 26, 2026. The linked authority identifier is Q1129573. Authority coordinates are 42.325, -83.040. None of the 2 selected statements returned an explicit reference. The first chronological checks are 2026 and 1928.
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This entry incorporates text from “Detroit–Windsor Tunnel” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.