State route No. 290.
RCW 47.17.520
in effectA state highway to be known as state route number 290 is established as follows: Beginning at a junction with state route number 90 in Spokane, thence northeasterly by way of Millwood, Trentwood, and Newman Lake to the termination of Idaho state highway number 53 at the Washington-Idaho boundary line.
A state highway to be known as state route number 290 is established as follows:
Beginning at a junction with state route number 90 in Spokane, thence northeasterly by way of Millwood, Trentwood, and Newman Lake to the termination of Idaho state highway number 53 at the Washington-Idaho boundary line.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=47.17&full=trueFetched: 6/29/2026
