include making improvements to several interchanges on I-205 by 2040. Exit list Mileposts and exit numbers carry over from Oregon to Washington. References External links Interstate 205 at ORoads Interstate 205 at Highways of Washington State Interstate 205 at Interstate Guide.com 1975 establishments in Oregon 1975 establishments in Washington (state) 05-2 Oregon 2 Oregon 05-2 05-2 Transportation in Clackamas County, Oregon Transportation in Clark County, Washington Transportation in Multnomah County, Oregon Transportation in Washington County, Oregon