New England Interstate Highways

From Freepedia

The New England Interstate Highways were an interstate system of marked numbered highways in New England. The routes were marked in 1922 by a yellow rectangular shield with black numbers and border. Many shields were painted on telephone poles. Odd numbers ran east-west and even numbers ran north-south, with the exception of NE 1, which ran along the coast and had sections in each direction.

In 1927, the highways were supplanted by the national U.S. Highway system. Except for NE 1, which became US 1, the old numbers were not used, since the U.S. Highway system uses odd numbers for north-south routes and even numbers for east-west routes. However, most of the routes that did not become U.S. Highways keep their numbers as state highways.