Category:Tunnels in the United States by century of opening

Countries of the Americas: Canada · United States of America

See also category: Tunnels in the United States by century of closing.

Subcategories

This category has the following 5 subcategories, out of 5 total.

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Rail tunnels in the United States by century of opening‎ (2 C)
Road tunnels in the United States by century of opening‎ (2 C)

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Tunnels in the United States opened in the 19th century‎ (6 C)
Tunnels in the United States opened in the 20th century‎ (12 C)
Tunnels in the United States opened in the 21st century‎ (4 C)

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