Interstate 78 in New Jersey Interstate 78 in New Jersey Interstate 78 (I-78) is an east–west route stretching from Union Township, Lebanon County, Pennsylvania to New York City. In New Jersey, I-78 is called the Phillipsburg–Newark Expressway and the Newark Bay Extension of the New Jersey Turnpike. The highway runs for in the northern part of the state of New Jersey from the Interstate 78 Toll Bridge over the Delaware River at the Pennsylvania state line in Phillipsburg, Warren County east to the Holland Tunnel under the Hudson River at the New York state line in Jersey City, Hudson County. The Phillipsburg-Newark Expressway portion of
New Jersey English New Jersey, plus Middlesex and Monmouth Counties. Therefore, the short-"a" system of these areas of New Jersey is most similar to the New York City split-"a" system, however with some variation. East of the Hackensack River, Labov finds the short-"a" system to occurs with no more variation than in New York City proper. However, west of the Hackensack River, he finds that the normal function word constraint of New York City English is lost and the open syllable constraint becomes variable. While most of the New York metropolitan dialect heard in New Jersey is rhotic, that of Newark and Jersey