Oregon Interstate 405
1978 specification reassurance marker.
eastbound U.S. 30/N.W. St. Helens Road prior to 35th Avenue in industrial section of Portland.
Photo by Andy Field, 9/2/2006.
1978 specification reassurance marker.
eastbound U.S. 30/N.W. St. Helens Road prior to 35th Avenue in industrial section of Portland.
Photo by Andy Field, 9/2/2006.