I-80 in Utah: fatal crashes
From 2015 to 2024, 88 fatal crashes on I-80 in Utah killed 93 people, the 3rd most of 173 numbered roads in Utah. In 2024 there were 6 fatal crashes and 6 deaths on the road.
An interstate running through 3 counties of Utah. All fatal crashes in Utah. I-80 in every state.
Deaths on I-80 in Utah by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 6 | 6 |
| 2023 | 11 | 11 |
| 2022 | 9 | 9 |
| 2021 | 11 | 13 |
| 2020 | 10 | 10 |
| 2019 | 4 | 4 |
| 2018 | 9 | 9 |
| 2017 | 4 | 4 |
| 2016 | 14 | 16 |
| 2015 | 10 | 11 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on I-80 in Utah: the counties with the most fatal crashes
Tooele County had the most fatal crashes on I-80 from 2015 to 2024: 50, with 54 deaths. Tooele, Salt Lake and Summit counties together held 100% of fatal crashes on I-80 in Utah from 2015 to 2024. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Tooele County | 0 | 50 | 54 |
| 2 | Salt Lake County | 5 | 21 | 21 |
| 3 | Summit County | 1 | 17 | 18 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen on I-80 in Utah
88 fatal crashes on I-80 in Utah from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is 4 pm to 5 pm; the worst month is June.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 3.4 percent, 3 fatal crashes | 4.5 percent, 4 fatal crashes | 1.1 percent, 1 fatal crash | 3.4 percent, 3 fatal crashes | 3.4 percent, 3 fatal crashes | 1.1 percent, 1 fatal crash |
| Mon | 1.1 percent, 1 fatal crash | 2.3 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 2.3 percent, 2 fatal crashes | 4.5 percent, 4 fatal crashes |
| Tue | 2.3 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash | 1.1 percent, 1 fatal crash | 2.3 percent, 2 fatal crashes | 2.3 percent, 2 fatal crashes | 3.4 percent, 3 fatal crashes |
| Wed | 2.3 percent, 2 fatal crashes | 2.3 percent, 2 fatal crashes | 2.3 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash | 4.5 percent, 4 fatal crashes | 4.5 percent, 4 fatal crashes |
| Thu | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 2.3 percent, 2 fatal crashes | 3.4 percent, 3 fatal crashes | 2.3 percent, 2 fatal crashes | 2.3 percent, 2 fatal crashes |
| Fri | 1.1 percent, 1 fatal crash | 2.3 percent, 2 fatal crashes | 2.3 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 4.5 percent, 4 fatal crashes | 2.3 percent, 2 fatal crashes |
| Sat | 6.8 percent, 6 fatal crashes | 3.4 percent, 3 fatal crashes | 3.4 percent, 3 fatal crashes | 2.3 percent, 2 fatal crashes | 2.3 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash |
By hour
By month
- Jan3.4%
- Feb5.7%
- Mar6.8%
- Apr9.1%
- May8.0%
- Jun12.5%
- Jul8.0%
- Aug10.2%
- Sep9.1%
- Oct9.1%
- Nov9.1%
- Dec9.1%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Fatal crashes per mile on I-80 in Utah
4.5 fatal crashes a year per 100 miles over 2015 to 2024, on 195 miles of I-80 in Utah, against 5 for all interstates in Utah. That ranks 2 of 3 interstates in Utah and 140 of 172 interstate pages on this site.
Mileage from the FHWA Interstate route log (table 1), the only figure here not counted from FARS. Crashes per mile of road, not per vehicle: FARS records crashes, not traffic.
What fatal crashes on I-80 in Utah first hit
The first harmful event was a collision with another vehicle in 32%; a fixed object such as a tree, pole or barrier in 26%, a rollover in 25%, a pedestrian in 5.7%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 28 | 32% |
| Fixed object (tree, pole, barrier, ditch) | 23 | 26% |
| Rollover | 22 | 25% |
| Other | 10 | 11% |
| Pedestrian | 5 | 5.7% |
| Cyclist | 0 | 0.0% |
| Parked vehicle | 0 | 0.0% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes on I-80 in Utah compare with the state
The largest difference from Utah: from 2015 to 2024, 77% of fatal crashes on I-80 in Utah were on rural roads, against 40% across Utah. Also above the Utah share: unlit roads at night. Below it: intersections, motorcycles and pedestrians. Shares of fatal crashes from 2015 to 2024, against the share across all of Utah. A share is only given over 20 crashes; above or below means more than chance would give on 88 crashes.
| I-80 | Utah | ||
|---|---|---|---|
| On rural stretches | 77% | 40% | above the Utah share |
| At or near an intersection | 0.0% | 27% | below the Utah share |
| In the dark, road unlit | 42% | 24% | above the Utah share |
| A drinking driver | 27% | 23% | about the same as the Utah share |
| Speeding | 24% | 29% | about the same as the Utah share |
| A distracted driver (as recorded) | 5.7% | 6.8% | about the same as the Utah share |
| Occupants killed unbelted | 47% | 45% | about the same as the Utah share |
| Hit-and-run | 0.0% | 3.9% | about the same as the Utah share |
| A motorcycle involved | 8.0% | 16% | below the Utah share |
| Pedestrians among the dead | 6.5% | 14% | below the Utah share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes on I-80 in Utah
- How many fatal crashes have there been on I-80 in Utah?
- 88 fatal crashes killed 93 people on I-80 in Utah from 2015 to 2024. In 2024 there were 6 fatal crashes and 6 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on I-80 in Utah do the most fatal crashes happen?
- Tooele County had the most fatal crashes on I-80 from 2015 to 2024: 50, with 54 deaths. Salt Lake County was second with 21.
- How dangerous is I-80 in Utah per mile?
- 4.5 fatal crashes a year per 100 miles over 2015 to 2024, on 195 miles of road, against 5 for all interstates in Utah. That ranks 2 of 3 interstates in Utah and 140 of 172 interstate pages on this site. FARS records crashes, not traffic, so this is crashes per mile of road, not per vehicle.
Other roads in Utah with a page
All fatal crashes in Utah, with every road ranked.
Where the I-80 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-80 in Utah (filed under 5 spellings, such as "I-80", "I-80 E", "I-80 EAST", "I-80 EB"). Ramps, frontage and service roads are left out. Where two routes share a road, NHTSA files each crash under one of them, so a shared stretch counts on one route only. A fatal crash is one in which someone died within 30 days. Totals in state and news reports for a road usually differ: they include ramps and frontage roads, or count from preliminary reports. The full method.