Ohio State Route 306 is a north south highway in Western Lake County. It runs from Ohio State Route 283, south to the Lake/Geauga County Line. OH St Rt 306 passes through the following towns in Lake County. Mentor Waite Hill Kirtland OH St Rt 306 is not multi-plexed in Lake County. OH St Rt 306 intersects the following highways in Lake County. Ohio State Route 283, at Mentor. Ohio State Route 2, near Mentor. U.S. Rt. 20, near Mentor. Ohio State Route 84, near Mentor. Interstate 90, near Mentor. Ohio State Route 615, near Waite Hill. U.S. Rt. 6, near Waite Hill.
