The A66: where people are seriously hurt
Over 2021–2025, 163 people were killed or seriously injured in 126 collisions on the A66, making it the 85th worst numbered road in Britain by that measure.
126
serious or fatal collisions
163
people killed or seriously injured
25
collisions that took a life
#85
of 150 numbered roads
What the record shows
The A66 carries 350 recorded injury collisions over the period, 126 of them serious or fatal. Serious injury concentrates in Westmorland and Furness, Eden, Cumberland, with 3 further areas also recording collisions. Collisions here are more likely than average to be fatal: 20% against 7% across the numbered network, which usually points to higher speeds. Most collisions were recorded on 60 mph sections. The worst year of the period was 2021 with 29 serious collisions, and the count is down 45% between 2021 and 2025.
Every serious and fatal collision on the A66
Blue markers are serious collisions, red crosses fatal. Click any marker for the year. Zoom in to see the specific junctions and stretches where they cluster.
Where along the route
- Westmorland and Furness27 KSI
- Eden22 KSI
- Cumberland15 KSI
- County Durham11 KSI
- Middlesbrough11 KSI
- Stockton-on-Tees10 KSI
Local authority areas with the most serious collisions on this road.
The trend
Serious and fatal collisions on the A66
2025: 16 (down 42.9% on the year before) · peak 29 in 2021 · -44.8% across the period
Axis clipped to the data range to show year-on-year movement.
About the A66
How many accidents happen on the A66?
Police recorded 350 injury collisions on the A66 over 2021–2025, of which 126 were fatal or serious. Those serious collisions left 163 people killed or seriously injured, including 25 fatal collisions.
Is the A66 a dangerous road?
By volume of serious injury it ranks 85 of the 150 numbered roads we analyse, and 78 among a roads. That is a count rather than a rate: longer and busier roads accumulate more collisions, so a high ranking reflects exposure as well as risk.
Where on the A66 do collisions happen?
They concentrate in Westmorland and Furness, Eden, Cumberland. The map on this page plots every serious and fatal collision recorded on the route, so you can see the specific stretches rather than the total.
Counts include every collision the police recorded on this road number across all authority areas. They are not adjusted for traffic volume or road length, so treat them as a measure of where injury concentrates rather than a per-mile risk rating. Method. Free to reuse with attribution to this page.
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