I-90 in Washington: fatal crashes
From 2015 to 2024, 155 fatal crashes on I-90 in Washington killed 176 people, the 2nd most of any numbered road in Washington. In 2024 there were 13 fatal crashes and 15 deaths on the road.
An interstate running through 6 counties of Washington. All fatal crashes in Washington.
Deaths on I-90 in Washington by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2015 | 14 | 14 |
| 2016 | 19 | 22 |
| 2017 | 16 | 17 |
| 2018 | 17 | 20 |
| 2019 | 9 | 9 |
| 2020 | 8 | 10 |
| 2021 | 15 | 17 |
| 2022 | 21 | 22 |
| 2023 | 23 | 30 |
| 2024 | 13 | 15 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on I-90 in Washington: the counties with the most fatal crashes
Kittitas County had the most fatal crashes on I-90 from 2015 to 2024: 52, with 64 deaths. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Kittitas | 3 | 52 | 64 |
| 2 | King | 4 | 41 | 46 |
| 3 | Spokane | 5 | 26 | 27 |
| 4 | Adams | 1 | 17 | 18 |
| 5 | Grant | 0 | 13 | 15 |
| 6 | Lincoln | 0 | 6 | 6 |
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-90 in Washington
Too few crashes to name a heaviest slot. The grid shows the shares; a share is only given over 20 crashes.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 3.2 percent, 5 fatal crashes | 0.6 percent, 1 fatal crashes | 1.3 percent, 2 fatal crashes | 2.6 percent, 4 fatal crashes | 3.9 percent, 6 fatal crashes | 3.2 percent, 5 fatal crashes |
| Mon | 3.2 percent, 5 fatal crashes | 1.9 percent, 3 fatal crashes | 1.3 percent, 2 fatal crashes | 3.9 percent, 6 fatal crashes | 1.3 percent, 2 fatal crashes | 2.6 percent, 4 fatal crashes |
| Tue | 0.6 percent, 1 fatal crashes | 1.9 percent, 3 fatal crashes | 0.6 percent, 1 fatal crashes | 1.9 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes | 1.9 percent, 3 fatal crashes |
| Wed | 0.0 percent, 0 fatal crashes | 1.9 percent, 3 fatal crashes | 1.9 percent, 3 fatal crashes | 1.9 percent, 3 fatal crashes | 2.6 percent, 4 fatal crashes | 3.9 percent, 6 fatal crashes |
| Thu | 1.9 percent, 3 fatal crashes | 3.9 percent, 6 fatal crashes | 1.9 percent, 3 fatal crashes | 2.6 percent, 4 fatal crashes | 2.6 percent, 4 fatal crashes | 3.2 percent, 5 fatal crashes |
| Fri | 0.6 percent, 1 fatal crashes | 5.2 percent, 8 fatal crashes | 3.2 percent, 5 fatal crashes | 2.6 percent, 4 fatal crashes | 2.6 percent, 4 fatal crashes | 3.9 percent, 6 fatal crashes |
| Sat | 3.9 percent, 6 fatal crashes | 3.2 percent, 5 fatal crashes | 1.9 percent, 3 fatal crashes | 5.2 percent, 8 fatal crashes | 3.2 percent, 5 fatal crashes | 0.0 percent, 0 fatal crashes |
By hour
By month
- Jan9.0%
- Feb5.2%
- Mar5.2%
- Apr7.7%
- May7.7%
- Jun7.7%
- Jul9.7%
- Aug11.0%
- Sep11.6%
- Oct7.1%
- Nov7.1%
- Dec11.0%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes on I-90 in Washington first hit
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 46 | 30% |
| Fixed object (tree, pole, barrier, ditch) | 44 | 28% |
| Rollover | 36 | 23% |
| Pedestrian | 14 | 9.0% |
| Other | 9 | 5.8% |
| Parked vehicle | 6 | 3.9% |
| Cyclist | 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-90 in Washington compare with the state
Shares of fatal crashes from 2015 to 2024, against the share across all of Washington. A share is only given over 20 crashes.
| I-90 | Washington | ||
|---|---|---|---|
| On rural stretches | 76% | 42% | above the Washington share |
| At or near an intersection | 0.0% | 26% | below the Washington share |
| In the dark, road unlit | 32% | 24% | above the Washington share |
| A drinking driver | 21% | 31% | below the Washington share |
| Speeding | 28% | 31% | below the Washington share |
| Occupants killed unbelted | 33% | 40% | below the Washington share |
| Hit-and-run | 1.9% | 6.3% | below the Washington share |
| A motorcycle involved | 13% | 17% | below the Washington share |
| Pedestrians among the dead | 9.7% | 18% | below the Washington share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Other roads in Washington with a page
- I-5
- I-82
- State Highway 14
- State Highway 20
- State Highway 3
- State Highway 7
- State Highway 99
- US 101
- US 12
- US 2
- US 395
- US 97
All fatal crashes in Washington, with every road ranked.
Where the I-90 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-90 in Washington. Ramps, frontage and service roads are left out. A fatal crash is one in which someone died within 30 days. The full method.