}</mapframe>During the opening, Moses was already proposing plans to extend the Bethpage southward to NY 27 and Merrick Road in Massapequa. The right-of-way for this new parkway was to cross Massapequa State Park, and as a result, Moses saw no trouble in acquiring the right-of-way. Moses proposed building interchanges at Merrick Road, which would have been a trumpet interchange, and NY 27, which would have been a full cloverleaf. The interchange with the Southern State Parkway would have been upgraded to a full cloverleaf. The design of the extension would be different than that of the original Bethpage Parkway, however, as the designs were refined in the 1950s to make the current parkway and extension a four-lane divided highway instead of the two-lane undivided design used in the 1930s.