The New York alignment has remained virtually unchanged since it was assigned as part of the 1930 renumbering of state highways in New York, while the designations of the roads it connects to in Pennsylvania have varied over the years. The two segments of PA 426 were established at different times in the 1940s.
The New York alignment has remained largely consistent since its assignment as part of the 1930 renumbering of state highways in New York, whereas the designations of roads it connects to in Pennsylvania have fluctuated over time. The two segments of PA 426 were established at different points during the 1940s.