The deadliest roads in Massachusetts
I-495 had the most fatal crashes of any numbered road in Massachusetts from 2015 to 2024: 140, with 155 deaths. The 60 roads listed held 46% of all fatal crashes in Massachusetts from 2015 to 2024; 10 are interstates, 8 US routes, 42 state highways.
158 numbered roads in Massachusetts recorded a fatal crash in those years; the 60 with 5 or more are ranked below, and 11 have a page of their own. All fatal crashes in Massachusetts.
Every numbered road in Massachusetts, ranked by fatal crashes
| Road | Kind | Fatal crashes | Deaths | 2022 to 2024 | Counties with the most | |
|---|---|---|---|---|---|---|
| 1 | I-495 | Interstate | 140 | 155 | 44 | Middlesex, Essex, Bristol |
| 2 | I-95 | Interstate | 86 | 89 | 23 | Norfolk, Essex, Middlesex |
| 3 | I-90 | Interstate | 75 | 79 | 22 | Worcester, Hampden, Suffolk |
| 4 | US 20 | US route | 74 | 83 | 20 | Worcester, Hampden, Berkshire |
| 5 | State Highway 28 | State highway | 72 | 78 | 20 | Barnstable, Plymouth, Norfolk |
| 6 | I-93 | Interstate | 72 | 74 | 21 | Middlesex, Suffolk, Essex |
| 7 | State Highway 24 | State highway | 58 | 59 | 23 | Bristol, Plymouth, Norfolk |
| 8 | I-195 | Interstate | 51 | 57 | 12 | Bristol, Plymouth |
| 9 | US 6 | US route | 48 | 52 | 13 | Bristol, Barnstable, Plymouth |
| 10 | State Highway 9 | State highway | 48 | 50 | 16 | Worcester, Hampshire, Berkshire |
| 11 | US 1 | US route | 45 | 46 | 17 | Essex, Norfolk, Bristol |
| 12 | State Highway 140 | State highway | 44 | 48 | 16 | Bristol, Worcester, Norfolk |
| 13 | State Highway 2 | State highway | 40 | 43 | 10 | Worcester, Franklin, Middlesex |
| 14 | State Highway 3 | State highway | 35 | 35 | 18 | Plymouth, Norfolk, Middlesex |
| 15 | I-91 | Interstate | 32 | 35 | 8 | Hampden, Franklin, Hampshire |
| 16 | State Highway 18 | State highway | 29 | 29 | 8 | Plymouth, Bristol, Norfolk |
| 17 | State Highway 2A | State highway | 29 | 29 | 8 | Middlesex, Worcester, Franklin |
| 18 | State Highway 1A | State highway | 28 | 31 | 5 | Essex, Suffolk, Norfolk |
| 19 | State Highway 110 | State highway | 27 | 27 | 6 | Essex, Middlesex, Worcester |
| 20 | I-290 | Interstate | 24 | 25 | 8 | Worcester, Middlesex |
| 21 | State Highway 116 | State highway | 23 | 25 | 13 | Hampshire, Hampden, Franklin |
| 22 | State Highway 12 | State highway | 22 | 22 | 6 | Worcester |
| 23 | State Highway 138 | State highway | 21 | 23 | 4 | Bristol, Norfolk |
| 24 | State Highway 16 | State highway | 21 | 23 | 7 | Middlesex, Worcester, Norfolk |
| 25 | US 202 | US route | 20 | 22 | 7 | Hampshire, Hampden, Worcester |
| 26 | State Highway 3A | State highway | 20 | 20 | 8 | Plymouth, Middlesex, Norfolk |
| 27 | US 5 | US route | 19 | 22 | 5 | Hampden, Franklin, Hampshire |
| 28 | State Highway 27 | State highway | 19 | 21 | 8 | Plymouth, Norfolk, Middlesex |
| 29 | State Highway 122 | State highway | 19 | 20 | 7 | Worcester, Franklin |
| 30 | US 3 | US route | 19 | 20 | 11 | Middlesex, Plymouth |
| 31 | US 44 | US route | 19 | 20 | 6 | Bristol, Plymouth |
| 32 | State Highway 62 | State highway | 18 | 18 | 9 | Middlesex, Worcester, Essex |
| 33 | State Highway 123 | State highway | 17 | 20 | 4 | Plymouth, Bristol |
| 34 | State Highway 106 | State highway | 16 | 20 | 5 | Plymouth, Bristol, Norfolk |
| 35 | State Highway 38 | State highway | 16 | 18 | 4 | Middlesex, Barnstable, Norfolk |
| 36 | US 7 | US route | 15 | 17 | 5 | Berkshire |
| 37 | I-190 | Interstate | 15 | 16 | 4 | Worcester |
| 38 | State Highway 139 | State highway | 15 | 15 | 5 | Plymouth, Norfolk |
| 39 | State Highway 109 | State highway | 13 | 14 | 3 | Norfolk |
| 40 | State Highway 114 | State highway | 12 | 12 | 3 | Essex, Bristol |
| 41 | State Highway 133 | State highway | 11 | 11 | 3 | Essex, Middlesex |
| 42 | State Highway 146 | State highway | 11 | 11 | 4 | Worcester |
| 43 | I-395 | Interstate | 10 | 12 | 5 | Worcester |
| 44 | State Highway 107 | State highway | 10 | 11 | 7 | Essex, Suffolk |
| 45 | State Highway 99 | State highway | 10 | 11 | 4 | Middlesex, Suffolk |
| 46 | State Highway 141 | State highway | 10 | 10 | 1 | Hampden, Hampshire |
| 47 | State Highway 8 | State highway | 10 | 10 | 2 | Berkshire |
| 48 | State Highway 113 | State highway | 9 | 10 | 3 | Middlesex, Essex |
| 49 | I-291 | Interstate | 9 | 9 | 1 | Hampden |
| 50 | State Highway 125 | State highway | 9 | 9 | 1 | Essex |
| 51 | State Highway 58 | State highway | 9 | 9 | 4 | Plymouth |
| 52 | State Highway 70 | State highway | 9 | 9 | 1 | Worcester |
| 53 | State Highway 128 | State highway | 8 | 9 | 2 | Essex |
| 54 | State Highway 6A | State highway | 8 | 9 | 1 | Barnstable |
| 55 | State Highway 105 | State highway | 8 | 8 | 4 | Plymouth |
| 56 | State Highway 135 | State highway | 8 | 8 | 1 | Middlesex, Worcester, Norfolk |
| 57 | State Highway 25 | State highway | 8 | 8 | 1 | Plymouth, Barnstable |
| 58 | State Highway 53 | State highway | 8 | 8 | 1 | Norfolk, Plymouth |
| 59 | State Highway 60 | State highway | 8 | 8 | 2 | Middlesex, Suffolk |
| 60 | State Highway 31 | State highway | 7 | 7 | 3 | Worcester, Middlesex |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Download every numbered road in Massachusetts as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/deadliest-roads/massachusetts/, from NHTSA FARS (2024 Annual Report File).”
Interstates in Massachusetts per mile
Fatal crashes a year per 100 miles of road, 2015 to 2024, for interstates with 20 miles or more in Massachusetts. Crashes per mile of road, not per vehicle. Mileage from the FHWA Interstate route log.
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about the deadliest roads in Massachusetts
- What is the deadliest road in Massachusetts?
- I-495 had the most fatal crashes of any numbered road in Massachusetts from 2015 to 2024: 140, with 155 deaths. I-95 was second with 86 and I-90 third with 75. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Which interstate in Massachusetts is the most dangerous per mile?
- I-93, with 15.6 fatal crashes a year per 100 miles over 2015 to 2024 on 46 miles. That is crashes per mile of road, not per vehicle.
- How many fatal crashes in Massachusetts happen on numbered roads?
- 1,843 of 3,483 fatal crashes in Massachusetts from 2015 to 2024 (53%) were filed on an interstate, US or state route; the rest were on county roads, city streets and unnamed roads, which are in the state's total but not ranked here.
Where the Massachusetts road numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash filed on a numbered interstate, US or state route in Massachusetts, read from the road name NHTSA filed, with ramps, frontage and service roads left out. A road gets its own page with 15 or more fatal crashes from 2022 to 2024. The full method.