Complex sentence: Within the village, NY 30 briefly overlaps U.S. Route 11 before continuing north out of the village to the Canadian border in Constable, where it becomes Route 138 upon entering Quebec.
Split into simpler sentences: Within the village, NY 30 briefly overlaps U.S. Route 11. The route continues north out of the village to the Canadian border in Constable, where it becomes Route 138 upon entering Quebec.