 By 1967, I-35 had been constructed through Oklahoma City. On January 4, 1967, SH-74 was split into two sections, with the removal of the section between Goldsby and Norman. The southern section was truncated on December 12, 1974, bringing the highway to its current southern terminus. The gap between the two sections of SH-74 was widened on March 3, 1975, when the route was eliminated through Cleveland County and much of Oklahoma City, bringing SH-74 to its present-day termini.
