Orange Street Tunnel in Missoula, Listed!
In 2023, additional documentation regarding the history of the previously National Register-listed Orange Street Underpass was submitted to the National Register. The documentation acknowledges the Montana Department of Transportation’s reclassification of the steel stringer and steel girder underpass structure as a tunnel. The well-known structure with its Art deco flourishes supports two historic warehouses, West Railroad Street, North 1st Street West, and five sets of BNSF tracks.