Category:Proposed tunnels in North America

Subcategories

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

Proposed undersea tunnels in North America (4 P)
Proposed railway tunnels in North America (10 P)
Proposed road tunnels in North America (1 P)

P

Proposed tunnels in Canada (1 P)

U

Proposed tunnels in the United States (16 P)

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