Street and Road Records

King County establishes and maintains streets, roads and bridges in unincorporated areas of King County. To research establishment, construction and maintenance of present-day streets and bridges, start with County Council ordinances and motions, or contact the Map and Records Center of the King County Road Services Division.

This page features historic records relating to streets, roads and bridges in King County.

• Road histories: research and records
• Road vacations
• Road name changes
• Historical road maps and plans
• Historical road photographs
• Bridges