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 99 State Route 99 was assigned to a road also in Millard County that linked the Topaz War Relocation Center used in World War II. Utah State Route 99 State Route 99 (SR-99) is a state highway in the US state of Utah providing a business loop around I-15 for the town of Fillmore in the central portion of the state. The route is the main street for the town and spans . The highway was established 1969 as I-15 was constructed through the area, replacing US-91. The highway begins at a diamond interchange on I-15 at exit 163 heading southeast.