CrashRate

Fatal crash rate · Washington · Road

Fatal crashes on I-90 in Washington

Every fatal crash NHTSA coded to Interstate 90 in Washington, 2020 to 2024, with the year, the county and what the record says about each. Fatal crashes only, and a count, not a rate: the federal record has no traffic volume for a road.

I-90 in Washington2020 to 2024 · fatal crashes recorded by NHTSA

84fatal crashes over five years · 98 deaths

Over 2020 to 2024, NHTSA recorded 84 fatal crashes on I-90 in Washington, in which 98 people died. That is 3% of the 3,253 fatal crashes recorded in Washington in those years, about 17 a year. 4 of the 84 were coded to a ramp, frontage or service road of I-90 rather than the main lanes. In 2024, the latest year, 14 were recorded.

No rate. A county has residents and a state has vehicle-miles, so each gets a rate. A road has neither in any federal file: FHWA publishes no traffic volume per route, and FARS carries no length. The count says how many fatal crashes were coded to this road, not how dangerous a mile of it is or how it compares with another road.
Counted
FARS crashes 2020 to 2024 in Washington whose TWAY_ID or TWAY_ID2 begins I-90
Share
84 ÷ 3,253 fatal crashes in Washington = 3%

Every year, 2020 to 2024

YearFatal crashes on I-90DeathsFatal crashes in WashingtonShare
20209115392%
202115176072%
202221227013%
202325327323%
202414166742%

2024 is NHTSA’s Annual Report File and will be revised when the final file replaces it.

Where on I-90: by county, 2020 to 2024

The counties the crashes were coded to, alphabetical. A road’s count in a county depends on how many miles of it run there and how busy they are; the page does not rank the counties. Each name opens the county page with its own rate.

What the record says about those crashes, 2020 to 2024

Every figure is a count of the 84 fatal crashes NHTSA coded to I-90 in Washington over five years, from the fields FARS records. Nothing is estimated or inferred.

Road typeCrashesShare
Interstate84100%
Other freeway or expressway00%
Other principal arterial00%
Minor arterial00%
Major collector00%
Minor collector00%
Local road00%
Unknown or not reported00%
Rural6274%
Urban2226%
Time of dayCrashesShare
Midnight to 5:59 am1518%
6 am to 11:59 am1720%
Noon to 5:59 pm2327%
6 pm to 11:59 pm2935%
Hour unknown00%
LightCrashesShare
Daylight4048%
Dark, not lighted (or lighting unknown)2833%
Dark, lighted1518%
Dawn or dusk11%
Unknown or not reported00%
Day of weekCrashesShare
Sunday1012%
Monday1214%
Tuesday11%
Wednesday1214%
Thursday1619%
Friday1518%
Saturday1821%
MonthCrashesShare
January810%
February56%
March34%
April78%
May78%
June56%
July67%
August1214%
September78%
October78%
November911%
December810%
WeatherCrashesShare
Clear5262%
Cloudy1619%
Rain911%
Snow, sleet or freezing rain45%
Fog, smog or smoke22%
Severe wind, blowing sand or other11%
Unknown or not reported00%
InvolvingCrashesShare
A pedestrian1012%
A bicyclist or other cyclist00%
A speeding-related vehicle2327%
A driver police reported as drinking1619%
A large truck (over 10,000 lb)1619%
A motorcycle1518%
A hit-and-run vehicle34%
A teen driver (15 to 19)34%

Road type is FARS FUNC_SYS for the crash, which can differ from the route’s class where a crash was coded on a frontage road or ramp; speeding is any vehicle coded SPEEDREL 2 to 5; drinking is any driver coded DRINKING = 1 (police-reported, not a blood-alcohol test).

How this is counted

  • The road is the designation FARS wrote. Each crash in NHTSA’s Fatality Analysis Reporting System names the trafficway it was on (TWAY_ID) and, at an intersection, a second one (TWAY_ID2). NHTSA standardises the route designation (I-45, US-59, SR-6) and the police often add a local name after it (I-45/NORTH FWY) or a ramp or frontage word. The page counts every crash whose designation is I-90, once, whatever followed it. Nothing else is matched: a crash coded only to a local street name is not here even if that street is this road.
  • Same number, another state, another road. I-90 in Washington is counted within Washington only. Where the route continues into a neighbouring state it has its own page there, and a State Route number means nothing outside its state.
  • Only roads with ten or more fatal crashes over 2020 to 2024 have a page. Fewer is too few to say anything, and the county page already lists the most-named roads in each county as the police wrote them.
  • No rate, no rank. The Washington page lists every numbered road in route order with its count and nothing else. Roads with more lanes, more miles or more traffic record more fatal crashes; the record cannot separate those from the road’s design.

Informational only, not professional advice. Last reviewed: October 2026. Data snapshot built 2026-10-30.

Other roads in Washington

In route order, first thirty; the full list is on the Washington page.