Route 18N was a state highway in New Jersey from 1923 to 1929, when it was renumbered as Route 1 and Route S1A. Route 18-N was defined in 1923 to run "from Hoboken to New York State line by way of Weehawken, West Hoboken, town of Union, North Bergen, Fairview, Ridgefield, Palisade Park, Fort Lee, Englewood-Cliffs, Tenafly and Alpine." The part from Hoboken to Fort Lee was not built or taken over as Route 18-N; it seems to follow the old Bergen Turnpike to Ridgefield and then Route 5 east. Route 18-N's south end was at pre-1927 Route 10, now Route 5.

Route 67 is a short state highway entirely within the community of Fort Lee in Bergen County, New Jersey. It is part of the original alignment of U.S. Route 9W (US 9W). The road runs 1.86 miles (2.99 km) from an intersection with Central Boulevard in Fort Lee up Palisade Avenue in downtown Fort Lee. There it becomes known as Lemoine Avenue, terminating at an interchange with US 9W, the Palisades Interstate Parkway and Route 445S in Fort Lee. The route was designated originally as a portion of State Highway Route 18N in 1923, and was split up in 1929 as part of present-day Route 63, US 9W and Route 67 for Routes S-1, 1 and Route S1A. Route S-1-A remained intact on Palisades and Lemoine Avenue until the 1953 state highway renumbering when it was switched over to Route 67. The route has remained virtually intact since.