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  2. Detroit–Windsor tunnel - Wikipedia

    en.wikipedia.org/wiki/Detroit–Windsor_tunnel

    The Detroit–Windsor tunnel crosses the Canada–United States border; an International Boundary Commission plaque marking the boundary in the tunnel is between flags of the two countries. [18] The tunnel is the second-busiest crossing between the United States and Canada after the nearby Ambassador Bridge .

  3. Michigan Central Railway Tunnel - Wikipedia

    en.wikipedia.org/.../Michigan_Central_Railway_Tunnel

    The Canadian entrance is south of Wyandotte Street West between Cameron and Wellington Avenues. It was built by the Detroit River Tunnel Company for the Canada Southern Railway, leased by the Michigan Central Railroad and owned by the New York Central Railroad. The tunnel opened in 1910 and is still in use today by the CPKC Railway.

  4. List of tunnels in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_tunnels_in_the...

    Jenson Tunnel, located in LeFlore County (just southwest of Bonanza, Arkansas), is the first and only railroad tunnel in Oklahoma. It was built through Backbone Mountain during the mid 1880s in Indian Territory by the Fort Smith & Southern Railway. It is still in operation today, primarily used by the Kansas City Southern Railway.

  5. The incredible tunnels pushing deep below the surface - AOL

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  6. Flooding fills tunnels leading to Detroit airport, forces ...

    www.aol.com/news/flooding-fills-tunnels-leading...

    Areas in southeast Michigan got over 5 inches (12.7 centimeters) of rain by Thursday morning, resulting in street flooding in the Detroit ar Flooding fills tunnels leading to Detroit airport ...

  7. A subway system in Detroit? Here are 6 times the city tried ...

    www.aol.com/subway-system-detroit-6-times...

    A 1933 effort was said to be the one that came closest to success.

  8. Deep level underground - Wikipedia

    en.wikipedia.org/wiki/Deep_level_underground

    Deep level underground is construction that is 20 m (66 ft) or more below ground and not using the cut-and-cover method, especially train stations, air raid shelters and bunkers, and some tunnels and mines. Cut-and-cover is a simple method of construction for shallow tunnels where a trench is excavated and roofed over with an overhead support ...

  9. List of long tunnels by type - Wikipedia

    en.wikipedia.org/wiki/List_of_long_tunnels_by_type

    Poola Subbaiah Veligonda Project Tunnel - II [70] [65] Andhra Pradesh, India: 18.83 km (11.7 mi) 2021 [needs update] Irrigation Poola Subbaiah Veligonda Project Tunnel - I [70] [65] Andhra Pradesh, India: 18.82 km (11.7 mi) 2020 [needs update] [71] Irrigation Many more tunnels that are shorter than 15 kilometres (9 mi) are under construction