List of state highways in Utah List List

| Number_ | South_or_west_terminus | North_or_east_terminus | Length_mi | Length_km | Formed | Deleted | Notes_ |
|---|---|---|---|---|---|---|---|
| SR-48 | Copperton | US-89 in Midvale | 12.699 | 20.437 | 1930s | current |  |
| SR-49 | US-91 at Farmington | I-84 near Ogden |  |  | 1927 | 1977 | Legislative designation for portion of US-89 |
| US-50 | Nevada state line near Baker, Nevada | Colorado state line near Fruita, Colorado | 334.920 | 539.001 | 1977 | current |  |
| SR-50 | SR-126 in Roy | US-89 in Ogden |  |  | 1969 | 1977 | Formerly part of US-91, now SR-26 |
| SR-50 | Wattis | SR-122 near Hiawatha |  |  | 1935 | 1969 | No longer part of the state highway network |
| SR-51 | SR-147 in Spanish Fork | US-89 in Springville | 3.339 | 5.374 | 1992 | current | Formerly part of US-91 |
| SR-51 | US-89 in Garden City | Wyoming state line near Randolph |  |  | 1930s | 1977 | Now part of SR-30 |