This is a list of tunnels documented by the Historic American Engineering Record in the US state of Washington. [1]
Survey No. | Name (as assigned by HAER) | Built | Documented | Carries | Crosses | Location | County | Coordinates |
---|---|---|---|---|---|---|---|---|
WA-70 | Box Canyon Tunnel | 1952 | 1992 | Stevens Canyon Highway | Stevens Ridge | Packwood | Lewis | 46°45′55″N121°38′12″W / 46.76528°N 121.63667°W |
WA-74 | Stevens Canyon Tunnel | 1936 | 1992 | Stevens Canyon Highway | Mountain spur | Longmire | Pierce | 46°45′48″N121°39′49″W / 46.76333°N 121.66361°W |
WA-75 | East Side Highway Tunnel | 1939 | 1992 | ![]() | Mountain spur | Packwood | Lewis | 46°50′46″N121°31′40″W / 46.84611°N 121.52778°W |
WA-109 | Mount Baker Ridge Tunnel | 1940 | 1993 | ![]() | Mount Baker Ridge | Seattle | King | 47°35′25″N122°17′55″W / 47.59028°N 122.29861°W |
WA-184 | Alaskan Way Viaduct and Battery Street Tunnel | 1966 | 2008 | ![]() | Battery Street | Seattle | King | 47°36′50″N122°20′52″W / 47.61389°N 122.34778°W |