New Jersey was one of the first U.S. states to adopt a system of numbered state highways. New Jersey's original numbered highway system was first legislated in 1916, succeeding another proposal submitted in 1913 by the State Highway commission. By 1923, 24 routes had been numbered. Due to a lack of central organizing oversight, many routes were legislated, but not numbered. A partial renumbering was proposed in 1926 to eliminate duplicates and give numbers to all routes, and in 1927 a full renumbering was carried out.
