Orbit Utah Interstate speed limits
The posted limits on every Interstate in Utah, measured along each road: the limit you'll see most, and the range from the slowest stretch to the fastest. The highest Interstate limit in Utah is 80 mph.
| Interstate | Usually | Range |
|---|---|---|
| I-15 | 80 mph | 70 to 80 mph |
| I-70 | 80 mph | 60 to 80 mph |
| I-80 | 80 mph | 65 to 80 mph |
| I-84 | 80 mph | 65 to 80 mph |
| I-215 | 70 mph | 70 mph |
Posted limits as of October 2026, from state and federal road data and © OpenStreetMap contributors, measured by length of road. Work zones, weather and signs can set a lower limit; always follow the posted sign.
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