In February 1937, the LISPC announced the design of the extension of the Northern State Parkway along with an extension of the Wantagh State Parkway. This new set of roadway, designated the "Northern–Wantagh State Parkway Extension", would extend the Wantagh from the Southern State to the Northern State and the Northern State to the interchange with the Wantagh in Wheatley Hills. The plans for the new road would be opened by 1939 so drivers would have easier access to Jones Beach State Park from the 1939 World's Fair at Flushing, Queens. The new roadways would have eighteen stone faced bridges combined between sections, with construction beginning in 1937. The new project would start being landscaped and paved by 1938. On April 7, the LISPC announced that bids on the new extensions would open on April 20 for the new project with the expectation that all at-grade structures would be completed by the end of the year.