 Legacy Parkway is part of the larger Legacy Highway project first proposed by then-governor Mike Leavitt, which ultimately will run north from Nephi toward Brigham City.The concept of a western Davis County highway has existed since the 1960s, with some proposals routing the highway over Antelope Island or across Farmington Bay.Legacy Parkway was to extend to the west side of the Salt Lake City International Airport and connect to I-80 at 5600 West; however, that plan was abandoned in October 1997.