 The parts of SR-186 (400 South) west of SR-176 (300 West) and SR-176 south of SR-186 were dropped from the state highway system, and SR-186 was extended north on 300 West to North Temple and west on North Temple to I-80, replacing the remainder of SR-176 and all of SR-267.State Route 184 was created in 1963, running north from US-89A/91A at North Temple and State Streets around the west side of the State Capitol and back to SR-1 north of downtown.The roadway had previously been part of SR-181 since 1935, but with US-89A/91A moving from South Temple to North Temple, a new number was needed to avoid a one-block overlap.