Utah State Route 201 to connect to North Temple). In 1939, the state legislature designated State Route 201, running west on 2100 South from State Street (US-40/US-91) to US-50 (9180 West) in Magna. By 1954, US-50 was moved south to an alignment through central Utah, the old routing mostly replaced by US-50 Alternate (US-50A). However, US-50A was placed in Salt Lake City on 2100 South west of State Street, replacing the SR-201 designation. By 1965, US-40 was realigned along Foothill Drive (then US-40A), the Utah Highway Department believing the Foothill route was more direct in connecting with North Temple toward the airport. US-40A was
Utah State Route 190 SR-224 became a new State Route 190. To avoid the necessity of remileposting SR-210, the new connection instead became part of SR-190 in 1988, bringing that route to its maximum extent: I-215 to SR-224. As part of a trade with Wasatch County in which the state took back what is now SR-32, and had been US-189, from US-40 south of the Jordanelle Reservoir to Francis, the east end of SR-190 was cut back to the Salt Lake-Wasatch County line in 1990. Utah State Route 190 State Route 190 or the Big Cottonwood Canyon Scenic Byway is primarily an east and