1927 New Jersey state highway renumbering

The old system, which had been defined in sequence by the legislature since 1916, was growing badly, as several routes shared the same number, and many unnumbered state highways had been defined.

A partial renumbering was proposed in 1926 to get rid of the duplicates and assigning numbers to many of the unnumbered routes.

The proposed 1926 renumbering would have: It was eventually determined that an entire overhaul of the numbering system was necessary.

Chapter 319 of the 1927 public laws defined the new system of routes.

The law authorizing the renumbering indicated that these were to remain, and so the State Highway Commission added a suffix of N to distinguish them from the new routes of the same number: Chapter 126 of the 1929 public law amended the 1927 act, removing redundant designations and creating entirely new roads in the New York Metropolitan Area.