I-90 in Massachusetts: fatal crashes
From 2015 to 2024, 75 fatal crashes on I-90 in Massachusetts killed 79 people, the 3rd most of any numbered road in Massachusetts. In 2024 there were 6 fatal crashes and 6 deaths on the road.
An interstate running through 5 counties of Massachusetts. All fatal crashes in Massachusetts. I-90 in every state.
Deaths on I-90 in Massachusetts by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 6 | 6 |
| 2023 | 9 | 9 |
| 2022 | 7 | 7 |
| 2021 | 11 | 11 |
| 2020 | 5 | 5 |
| 2019 | 8 | 8 |
| 2018 | 8 | 8 |
| 2017 | 7 | 7 |
| 2016 | 6 | 7 |
| 2015 | 8 | 11 |
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 Massachusetts: the counties with the most fatal crashes
Worcester County County had the most fatal crashes on I-90 from 2015 to 2024: 26, with 28 deaths. Worcester, Hampden and Suffolk counties together held 81% of fatal crashes in I-90 in Massachusetts from 2015 to 2024; the 5 listed held 100%. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Worcester County | 2 | 26 | 28 |
| 2 | Hampden County | 3 | 22 | 23 |
| 3 | Suffolk County | 0 | 13 | 14 |
| 4 | Middlesex County | 1 | 9 | 9 |
| 5 | Berkshire County | 0 | 5 | 5 |
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 Massachusetts
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 | 1.3 percent, 1 fatal crashes | 2.7 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 1.3 percent, 1 fatal crashes | 2.7 percent, 2 fatal crashes | 4.0 percent, 3 fatal crashes |
| Mon | 2.7 percent, 2 fatal crashes | 2.7 percent, 2 fatal crashes | 1.3 percent, 1 fatal crashes | 2.7 percent, 2 fatal crashes | 5.3 percent, 4 fatal crashes | 4.0 percent, 3 fatal crashes |
| Tue | 1.3 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 2.7 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 4.0 percent, 3 fatal crashes |
| Wed | 1.3 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 8.0 percent, 6 fatal crashes | 5.3 percent, 4 fatal crashes | 1.3 percent, 1 fatal crashes |
| Thu | 4.0 percent, 3 fatal crashes | 1.3 percent, 1 fatal crashes | 1.3 percent, 1 fatal crashes | 4.0 percent, 3 fatal crashes | 1.3 percent, 1 fatal crashes | 1.3 percent, 1 fatal crashes |
| Fri | 4.0 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes | 2.7 percent, 2 fatal crashes | 4.0 percent, 3 fatal crashes | 4.0 percent, 3 fatal crashes | 4.0 percent, 3 fatal crashes |
| Sat | 1.3 percent, 1 fatal crashes | 4.0 percent, 3 fatal crashes | 2.7 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 4.0 percent, 3 fatal crashes | 1.3 percent, 1 fatal crashes |
By hour
By month
- Jan5.3%
- Feb14.7%
- Mar10.7%
- Apr5.3%
- May5.3%
- Jun10.7%
- Jul13.3%
- Aug13.3%
- Sep2.7%
- Oct10.7%
- Nov4.0%
- Dec4.0%
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-90 in Massachusetts
5.43 fatal crashes a year per 100 miles over 2015 to 2024, on 138 miles of I-90 in Massachusetts, against 8.48 for all interstates in Massachusetts. That ranks 3 of 3 interstates in Massachusetts and 125 of 171 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-90 in Massachusetts first hit
The first harmful event was a fixed object such as a tree, pole or barrier in 36%; a collision with another vehicle in 35%, a pedestrian in 13%, a rollover in 5.3%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Fixed object (tree, pole, barrier, ditch) | 27 | 36% |
| Collision with another vehicle | 26 | 35% |
| Pedestrian | 10 | 13% |
| Rollover | 4 | 5.3% |
| Parked vehicle | 4 | 5.3% |
| Other | 4 | 5.3% |
| 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 Massachusetts compare with the state
A drinking driver was recorded in 27% of fatal crashes in I-90 in Massachusetts from 2015 to 2024, below the Massachusetts share of 30%; speeding in 32%, above the Massachusetts share of 29%; a hit-and-run in 1.3%, below the Massachusetts share of 4.9%; a driver recorded as distracted in 20%, above the Massachusetts share of 12%; 65% of passenger-vehicle occupants killed with belt use known were unbelted, above the Massachusetts share of 62%. Shares of fatal crashes from 2015 to 2024, against the share across all of Massachusetts. A share is only given over 20 crashes.
| I-90 | Massachusetts | ||
|---|---|---|---|
| On rural stretches | 9.3% | 6.6% | above the Massachusetts share |
| At or near an intersection | 0.0% | 26% | below the Massachusetts share |
| In the dark, road unlit | 24% | 19% | above the Massachusetts share |
| A drinking driver | 27% | 30% | below the Massachusetts share |
| Speeding | 32% | 29% | above the Massachusetts share |
| A distracted driver (as recorded) | 20% | 12% | above the Massachusetts share |
| Occupants killed unbelted | 65% | 62% | above the Massachusetts share |
| Hit-and-run | 1.3% | 4.9% | below the Massachusetts share |
| A motorcycle involved | 9.3% | 16% | below the Massachusetts share |
| Pedestrians among the dead | 18% | 20% | below the Massachusetts 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 in I-90 in Massachusetts
- How many fatal crashes have there been on I-90 in Massachusetts?
- 75 fatal crashes killed 79 people on I-90 in Massachusetts from 2015 to 2024. In 2024 there were 6 fatal crashes and 6 deaths.
- Where on I-90 in Massachusetts do the most fatal crashes happen?
- Worcester County had the most fatal crashes on I-90 from 2015 to 2024: 26, with 28 deaths. Hampden County was second with 22.
- How dangerous is I-90 in Massachusetts per mile?
- 5.43 fatal crashes a year per 100 miles over 2015 to 2024, on 138 miles of road, against 8.48 for all interstates in Massachusetts. That ranks 3 of 3 interstates in Massachusetts and 125 of 171 interstate pages on this site. FARS records crashes, not traffic, so this is crashes per mile of road, not per vehicle.
Other roads in Massachusetts with a page
- I-495
- I-93
- I-95
- State Highway 140
- State Highway 24
- State Highway 28
- State Highway 3
- State Highway 9
- US 1
- US 20
All fatal crashes in Massachusetts, 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 Massachusetts (filed under 6 spellings, such as "I-90", "I-90 E", "I-90 E MASS TURNPIKE", "I-90 W"). Ramps, frontage and service roads are left out. A fatal crash is one in which someone died within 30 days. The full method.