Ohio State Route 46

History

• 1923 – Original route established; originally routed from Canfield to the former State Route 2 in Ashtabula.
• 1931 – Extended to Columbiana along a previously unnumbered road.
• 1938 – Extended to State Route 531 in Ashtabula along a previously unnumbered road.
• 1946 – Extended to East Palestine along its current route and State Route 558.
• 1947 – From south of New Waterford to East Palestine dually certified with State Route 558.
• 1950 – Truncated at south of New Waterford.
• 1956 – Columbiana to Canfield dually certified with State Route 14.
• 1959 – State Route 14 certification removed from Canfield to south of Canfield.
• 1970 – From south of Interstate 90 to Ashtabula rerouted along new freeway alignment and dually certified with State Route 11.
• 1984 – State Route 14 certification removed from Columbiana to south of Canfield.
• 2007-08-17 - Removed from State Route 11, truncated at State Route 11 interchange in Plymouth Township.

  Major intersections