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GIS Resources

See Washington/Resources for GIS info and other specific WA info.

Functional Classification

All of the state's roads are typed and set according to WSDOT functional classification. Washington follows the Functional Classification (FC) system for both state and non-state roads. This change from the previous road-typing guidance was changed in September 2014. Please cross reference using the functional classification table

If you want to know more about the Federal Functional Classification check the Functional Classification article.