Fatal Crash Data

US 1 in Massachusetts: fatal crashes

From 2015 to 2024, 45 fatal crashes on US 1 in Massachusetts killed 46 people, the 11th most of 158 numbered roads in Massachusetts. In 2024 there were 10 fatal crashes and 10 deaths on the road.

A US route running through 5 counties of Massachusetts. All fatal crashes in Massachusetts.

Deaths on US 1 in Massachusetts by year

10201620182020202220242024: 10
YearFatal crashesDeaths
20241010
202333
202244
202166
202055
201934
201822
201722
201644
201566

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

Where on US 1 in Massachusetts: the counties with the most fatal crashes

Essex County had the most fatal crashes on US 1 from 2015 to 2024: 22, with 23 deaths. Counties are listed from 5 fatal crashes.

One fatal crash, 2015 to 2024Darker where crashes clusterNot on the map: 1 crash has no location in the file.
County20242015 to 2024Deaths
1Essex County32223
2Norfolk County61515

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 US 1 in Massachusetts

45 fatal crashes on US 1 in Massachusetts from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is 7 pm to 8 pm; the worst month is August.

Share of fatal crashes on US 1 in Massachusetts by weekday and time of day, 2015 to 2024, in percent
Midnight to 44 to 8 am8 to noonNoon to 44 to 8 pm8 to midnight
Sun2.2 percent, 1 fatal crash0.0 percent, 0 fatal crashes0.0 percent, 0 fatal crashes2.2 percent, 1 fatal crash4.4 percent, 2 fatal crashes4.4 percent, 2 fatal crashes
Mon0.0 percent, 0 fatal crashes0.0 percent, 0 fatal crashes2.2 percent, 1 fatal crash2.2 percent, 1 fatal crash4.4 percent, 2 fatal crashes2.2 percent, 1 fatal crash
Tue2.2 percent, 1 fatal crash0.0 percent, 0 fatal crashes2.2 percent, 1 fatal crash2.2 percent, 1 fatal crash4.4 percent, 2 fatal crashes4.4 percent, 2 fatal crashes
Wed0.0 percent, 0 fatal crashes2.2 percent, 1 fatal crash0.0 percent, 0 fatal crashes2.2 percent, 1 fatal crash0.0 percent, 0 fatal crashes2.2 percent, 1 fatal crash
Thu4.4 percent, 2 fatal crashes2.2 percent, 1 fatal crash2.2 percent, 1 fatal crash6.7 percent, 3 fatal crashes2.2 percent, 1 fatal crash0.0 percent, 0 fatal crashes
Fri0.0 percent, 0 fatal crashes0.0 percent, 0 fatal crashes4.4 percent, 2 fatal crashes2.2 percent, 1 fatal crash4.4 percent, 2 fatal crashes2.2 percent, 1 fatal crash
Sat4.4 percent, 2 fatal crashes2.2 percent, 1 fatal crash4.4 percent, 2 fatal crashes4.4 percent, 2 fatal crashes4.4 percent, 2 fatal crashes2.2 percent, 1 fatal crash

By hour

By month

  • Jan11.1%
  • Feb6.7%
  • Mar4.4%
  • Apr11.1%
  • May6.7%
  • Jun6.7%
  • Jul11.1%
  • Aug15.6%
  • Sep4.4%
  • Oct11.1%
  • Nov4.4%
  • Dec6.7%

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

What fatal crashes on US 1 in Massachusetts first hit

The first harmful event was a collision with another vehicle in 47%; a fixed object such as a tree, pole or barrier in 33%, a pedestrian in 16%, a rollover in 2.2%.

First harmful eventFatal crashesShare
Collision with another vehicle2147%
Fixed object (tree, pole, barrier, ditch)1533%
Pedestrian716%
Rollover12.2%
Parked vehicle12.2%
Cyclist00.0%
Other00.0%
Not reported00.0%

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

How fatal crashes on US 1 in Massachusetts compare with the state

From 2015 to 2024, every share for US 1 in Massachusetts is within chance of the Massachusetts share. Shares of fatal crashes from 2015 to 2024, against the share across all of Massachusetts. A share is only given over 20 crashes; above or below means more than chance would give on 45 crashes.

US 1Massachusetts
On rural stretches2.2%6.6%about the same as the Massachusetts share
At or near an intersection20%26%about the same as the Massachusetts share
In the dark, road unlit22%19%about the same as the Massachusetts share
A drinking driver29%30%about the same as the Massachusetts share
Speeding31%29%about the same as the Massachusetts share
A distracted driver (as recorded)20%12%about the same as the Massachusetts share
Occupants killed unbelted54%62%about the same as the Massachusetts share
Hit-and-run8.9%4.9%about the same as the Massachusetts share
A motorcycle involved18%16%about the same as the Massachusetts share
Pedestrians among the dead15%20%about the same as 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 on US 1 in Massachusetts

How many fatal crashes have there been on US 1 in Massachusetts?
45 fatal crashes killed 46 people on US 1 in Massachusetts from 2015 to 2024. In 2024 there were 10 fatal crashes and 10 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
Where on US 1 in Massachusetts do the most fatal crashes happen?
Essex County had the most fatal crashes on US 1 from 2015 to 2024: 22, with 23 deaths. Norfolk County was second with 15.

Other roads in Massachusetts with a page

All fatal crashes in Massachusetts, with every road ranked.

Where the US 1 numbers come from

Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as US 1 in Massachusetts (filed under 20 spellings, such as "US-1", "US-1 BOSTON PROVIDENCE TPKE", "US-1 BOSTON ST", "US-1 BRIDGE RD"). Ramps, frontage and service roads are left out. Where two routes share a road, NHTSA files each crash under one of them, so a shared stretch counts on one route only. A fatal crash is one in which someone died within 30 days. Totals in state and news reports for a road usually differ: they include ramps and frontage roads, or count from preliminary reports. The full method.