9.50.300 State highways designated as arterial highways.

All state highways are declared to be arterial highways as respects all other public highways or private ways except those city streets that the Washington State Highway Commission has designated as an arterial having preference over the traffic on the state highway.
Those city streets designated by the Washington State Transportation Commission as forming a part of the routes of state highways through the city are declared to be arterial highways as respects all other city streets or private ways. (Ord. 2735 § 2 (part), 1983).