Main Page | See live article | Alphabetical index New Jersey State Highway 18 is a state highway in New Jersey, United States. Its southern terminus is at Wall Township, New Jersey at New Jersey State Highway 138; its northern terminus is at River Road in Piscataway, New Jersey. Eventually, plans are in place to extend the highway south to Brielle, New Jersey and north to Interstate 287 in Piscataway (see Interstate 87). This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.