 SR-249 was extended west along a proposed roadway to 2200 West and 2200 North in 1961, "in order to provide an adequate road from the north to the Salt Lake City municipal airport", but in 1969 the entire route was removed from the state highway system.SR-68 was extended slightly east at its north end, from 500 West (US-89) to 200 West (SR-106), in 1975, and, in 2001, with the removal of SR-106 through downtown Bountiful from the state highway system, SR-68 was extended south along 200 West, formerly SR-106, to Parkin Junction on US-89.When the highway was established in 1931, it ran from Lehi to Salt Lake City.