After the turnpike was built in 1952, the NJTA and the New York State Thruway Authority proposed a extension of the New Jersey Turnpike that would run from its end (at US 46 in Ridgefield Park at the time) up to West Nyack, New York, at I-87, on the New York State Thruway. The section through New Jersey was to be constructed and maintained by the New Jersey Turnpike Authority, while the section in New York was to be built and maintained by the New York State Thruway Authority.