State route No. 543.

RCW 47.17.797
in effect
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A state highway to be known as state route number 543 is established as follows: Beginning at a junction with state route number 5 in the vicinity of Blaine, thence northerly to the international boundary. A state highway to be known as state route number 543 is established as follows: Beginning at a junction with state route number 5 in the vicinity of Blaine, thence northerly to the international boundary.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=47.17&full=trueFetched: 6/29/2026

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