Washington State Route 530
Highway in Washington / From Wikipedia, the free encyclopedia
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State Route 530 (SR 530) is a state highway in western Washington, United States. It serves Snohomish and Skagit counties, traveling 50.52 miles (81.30 km) from an interchange with Interstate 5 (I-5) southwest of Arlington past SR 9 in Arlington and Darrington to end at SR 20 in Rockport. Serving the communities of Arlington, Arlington Heights, Oso, Darrington and Rockport, the roadway travels parallel to a fork of the Stillaguamish River from Arlington to Darrington, the Sauk River from Darrington to Rockport and the Whitehorse Trail from Arlington to Darrington.
Oso Slide Memorial Highway | ||||
Route information | ||||
Auxiliary route of I-5 | ||||
Maintained by WSDOT | ||||
Length | 50.45 mi[1] (81.19 km) | |||
Existed | 1964–present | |||
Major junctions | ||||
West end | I-5 in Arlington | |||
Major intersections | SR 9 in Arlington | |||
East end | SR 20 in Rockport | |||
Location | ||||
Country | United States | |||
State | Washington | |||
Highway system | ||||
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The first segment of SR 530 to appear on a map was a road extending from Arlington to Oso in 1899. The first segment to be state-maintained was Secondary State Highway 1E (SSH 1E), which ran from Conway to Arlington. SSH 1E was extended to Darrington in 1957 and later renumbered to SR 530 in 1964; the road was extended to Rockport in 1983 and later the route from Conway to I-5 was removed from the system in 1991. A section of the highway was destroyed in the 2014 Oso landslide and was rebuilt; a longer portion of SR 530 was designated the Oso Slide Memorial Highway in 2019.