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-320 | SR-68 | Camp Williams | 2.190 | 3.524 | 1992 | current |  |
| I-415 | I-15/I-215 in Murray | I-80 in Parley`s Canyon |  |  | 1959 | 1969 | Combined with I-215 |
| US-450 | US-50 at Crescent Junction | Colorado state line near Dove Creek |  |  | 1926 | 1930s | Replaced by US-160, Modern US-191 and US-491 |
| US-491 | US-191 in Monticello | Colorado state line near Dove Creek | 17.020 | 27.391 | 2003 | Current |  |
| US-530 | US-40 near Park City | US-30S at Echo |  |  | 1926 | 1938 | Replaced by US-189, now part of I-80 |
| US-666 | US-191 in Monticello | Colorado state line near Dove Creek, Colorado | 17.020 | 27.391 | 1977 | 2003 | Replaced by US-491 |
| SR-900 | Skull Valley | I-80 at Delle and Lakeside | 16.18 | 26.04 | 1999 | current |  |
| SR-901 | Skull Valley | SR-196 | 43.48 | 69.97 | 1999 | current |  |