American Roads, LLC (5)
Built 1930 (1,744)
Built during 1930s (11,749)
Canada (13)
Detroit, Michigan (31)
Immersed Tube Tunnel (28)
International Border Crossing (64)
Michigan (1,125)
| Ontario
Open (39,882)
Owned privately (1,720)
Parsons, Klapp, Brinckerhoff & Douglas (2)
Total length over 2500 feet (916)
Tunnel (1,310)
Wayne County, Michigan (84)
Windsor, Canada (2)
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