Washington (state) Washington (state) Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the United States. Named for George Washington, the first president of the United States, the state was made out of the western part of the Washington Territory, which was ceded by Britain in 1846 in accordance with the Oregon Treaty in the settlement of the Oregon boundary dispute. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital; the state's largest city is Seattle. Washington is sometimes referred to as Washington State, to distinguish it
Washington State Route 8 Washington State Department of Transportation (WSDOT) replaced the previous system of Primary and Secondary Highways with a new system called State Routes, which is still in use today. Later in 1967, US 12 was extended from Lewiston, Idaho westward to Aberdeen. It was approved on June 20, 1967, and it replaced the route of US 410, therefore making the highway obsolete. Since US 12 used the all-weather White Pass and SR 8 from Elma to Grand Mound, and US 410 used Chinook Pass, which was closed during the winter, US 12 bypassed US 410 and what is now SR 8.