Detroit–Windsor Tunnel

The Detroit - Windsor Tunnel crosses under the Detroit River and connects Detroit ( Michigan) in the United States, with Windsor ( Ontario) in Canada. The tunnel was completed in 1930.

It is - after the nearby Ambassador Bridge - with over 28,000 vehicles per day, the busiest border crossing between the U.S. and Canada. A 2004 study showed that 150,000 jobs and 13 billion USD of annual economic output in the region from the Windsor - Detroit tunnel depend.

The Detroit - Windsor Tunnel was the third underwater tunnel in the United States when it was built. It is 1,573 m long. At its deepest point, the two-lane road is 23 m below the water level of the river.

The tunnel is currently owned by the Detroit - Windsor Tunnel LLC, a joint venture between the cities of Windsor and Detroit, which each hold 50%. Detroit had to sell its half of Windsor considered in order to allow a tunnel authority. That did not happen because of an administration scandal, however.

The Detroit - Windsor Tunnel is the third underwater tunnel between two nations, and the first international underwater tunnel for motor vehicles worldwide. The runs also under the Detroit River Michigan Central Railway Tunnel was completed in 1910 and thus the second tunnel between the two nations. The first international tunnel was the St. Clair Tunnel, which in 1891 between Port Huron ( Michigan) and Sarnia (Ontario) was opened. The Detroit - Windsor Tunnel was taken in 1982 by the American Society of Civil Engineers in the List of Historic Civil Engineering Landmarks.