New Jersey State Highway 90 is a state highway in New Jersey, United States. It runs from the Betsy Ross Bridge (where it enters Philadelphia, Pennsylvania) in Pennsauken, New Jersey to an intersection with New Jersey State Highway 73 in Cinnaminson, New Jersey. Originally, it was probably going to extend to the New Jersey Turnpike, but an extension to the Turnpike and Interstate 295 was never built. Signage in Pennsylvania on highways accessing the Betsy Ross Bridge use NJ 90 shields.