CrashRate

Fatal crash rate · Massachusetts · Road

Fatal crashes on US-6 in Massachusetts

Every fatal crash NHTSA coded to US Route 6 in Massachusetts, 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.

US-6 in Massachusetts2020 to 2024 · fatal crashes recorded by NHTSA

28fatal crashes over five years · 31 deaths

Over 2020 to 2024, NHTSA recorded 28 fatal crashes on US-6 in Massachusetts, in which 31 people died. That is 2% of the 1,806 fatal crashes recorded in Massachusetts in those years, about 6 a year. 1 of the 28 were coded to a ramp, frontage or service road of US-6 rather than the main lanes. In 2024, the latest year, 7 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 Massachusetts whose TWAY_ID or TWAY_ID2 begins US-6
Share
28 ÷ 1,806 fatal crashes in Massachusetts = 2%

Every year, 2020 to 2024

YearFatal crashes on US-6DeathsFatal crashes in MassachusettsShare
2020663272%
2021883932%
2022334131%
2023473241%
2024773492%

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

Where on US-6: 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 28 fatal crashes NHTSA coded to US-6 in Massachusetts over five years, from the fields FARS records. Nothing is estimated or inferred.

Road typeCrashesShare
Interstate00%
Other freeway or expressway311%
Other principal arterial1346%
Minor arterial1243%
Major collector00%
Minor collector00%
Local road00%
Unknown or not reported00%
Rural00%
Urban28100%
Time of dayCrashesShare
Midnight to 5:59 am414%
6 am to 11:59 am414%
Noon to 5:59 pm621%
6 pm to 11:59 pm1450%
Hour unknown00%
LightCrashesShare
Daylight1036%
Dark, not lighted (or lighting unknown)829%
Dark, lighted932%
Dawn or dusk14%
Unknown or not reported00%
Day of weekCrashesShare
Sunday932%
Monday27%
Tuesday311%
Wednesday311%
Thursday414%
Friday27%
Saturday518%
MonthCrashesShare
January311%
February00%
March00%
April14%
May311%
June414%
July311%
August414%
September311%
October311%
November27%
December27%
WeatherCrashesShare
Clear2175%
Cloudy725%
Rain00%
Snow, sleet or freezing rain00%
Fog, smog or smoke00%
Severe wind, blowing sand or other00%
Unknown or not reported00%
InvolvingCrashesShare
A pedestrian518%
A bicyclist or other cyclist27%
A speeding-related vehicle621%
A driver police reported as drinking414%
A large truck (over 10,000 lb)27%
A motorcycle725%
A hit-and-run vehicle14%
A teen driver (15 to 19)311%

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 US-6, 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. US-6 in Massachusetts is counted within Massachusetts 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 Massachusetts 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 Massachusetts

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