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CrashStats

A666 accidents: crash map and statistics

Police recorded 8,133 collisions on the A666 from 1979 to 2025, with 11,161 casualties. Of those crashes, 141 were fatal and 1,239 serious, and 157 people were killed.

In 2025 there were 55 collisions on the A666, down 26% from 74 in 2024, with 80 casualties.

Collisions since 1979
8,133
106th highest of 4,923 roads
Casualties
11,161
1.37 per collision
Fatal collisions
141
157 people killed
Serious collisions
1,239
1,390 seriously injured
Collisions in 2025
55
Down 26% on 2024
Casualties in 2025
80
Down 13% on 2024

Crash severity on the A666

On the A666, 1.7% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal1411.7%
  • Serious1,23915%
  • Slight6,75383%

Where the A666 ranks among 4,923 roads

Most collisions
106th
Most casualties
110th
Most fatal collisions
148th
Most serious collisions
151st

A666 accidents by year

Collisions on the A666 peaked at 264 in 1998 and were down to 55 in 2025.

Collisions and casualties on the A666, 1979 to 2025

  • Collisions
  • Collisions in 2025: 55
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20255580
20247492
20235971
20226087
20215268
20206690
201994111
20187490
201782103
201694137
201584117
2014106145
201391121
2012104154
201197145
2010100134
2009117175
2008168228
2007165251
2006167250
2005177230
2004170223
2003186265
2002217330
2001197283
2000227351
1999232334
1998264385
1997240367
1996256353
1995260375
1994244371
1993214306
1992251343
1991243317
1990257340
1989243329
1988237322
1987256340
1986244300
1985231293
1984244308
1983210258
1982254336
1981210286
1980242296
1979218271

When crashes happen on the A666

Friday has the most collisions on the A666 (1,446), and 3pm to 6pm is the busiest time of day (1,991).

Collisions by day of the week

  • Monday1,075 (13%)
  • Tuesday1,139 (14%)
  • Wednesday1,139 (14%)
  • Thursday1,231 (15%)
  • Friday1,446 (18%)
  • Saturday1,173 (14%)
  • Sunday930 (11%)

Collisions by time of day

  • Midnight to 3am323 (4%)
  • 3am to 6am121 (1.5%)
  • 6am to 9am943 (12%)
  • 9am to noon1,078 (13%)
  • Noon to 3pm1,525 (19%)
  • 3pm to 6pm1,991 (24%)
  • 6pm to 9pm1,252 (15%)
  • 9pm to midnight900 (11%)

Collisions by month

  • January705 (8.7%)
  • February643 (7.9%)
  • March616 (7.6%)
  • April604 (7.4%)
  • May618 (7.6%)
  • June588 (7.2%)
  • July645 (7.9%)
  • August680 (8.4%)
  • September690 (8.5%)
  • October751 (9.2%)
  • November837 (10%)
  • December756 (9.3%)

Light conditions at the time

  • Daylight5,523 (68%)
  • Dark, street lights lit2,420 (30%)
  • Dark, no street lighting108 (1.3%)
  • Dark, lighting unknown65 (0.8%)
  • Dark, street lights unlit17 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A666 crashes

On the A666, 86% of collisions happened where the speed limit was 30 mph and 58% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (under 0.1%)
  • 30 mph6,969 (86%)
  • 40 mph292 (3.6%)
  • 50 mph198 (2.4%)
  • 60 mph260 (3.2%)
  • 70 mph412 (5.1%)

Weather at the time

  • Fine, no high winds6,137 (75%)
  • Raining, no high winds1,448 (18%)
  • Raining with high winds129 (1.6%)
  • Fine with high winds98 (1.2%)
  • Other204 (2.5%)
  • Not recorded117 (1.4%)

Road surface

  • Dry4,697 (58%)
  • Wet or damp3,217 (40%)
  • Frost or ice148 (1.8%)
  • Snow52 (0.6%)
  • Other11 (0.1%)
  • Not recorded8 (0.1%)

Type of road

  • Single carriageway6,182 (76%)
  • Dual carriageway1,250 (15%)
  • One way street or slip road407 (5%)
  • Roundabout230 (2.8%)
  • Not recorded64 (0.8%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A666 crashes

Car occupants make up 58% of the people killed or injured on the A666, followed by pedestrians (19%).

Casualties by road user

  • Car occupant6,517 (58%)
  • Pedestrian2,175 (19%)
  • Motorcyclist1,033 (9.3%)
  • Cyclist563 (5%)
  • Van occupant317 (2.8%)
  • Bus or coach occupant272 (2.4%)
  • Other280 (2.5%)
  • Not recorded4 (under 0.1%)

Vehicles involved

  • Car11,062 (75%)
  • Motorcycle1,071 (7.3%)
  • Van or goods vehicle up to 3.5 tonnes872 (5.9%)
  • Pedal cycle585 (4%)
  • Goods vehicle over 3.5 tonnes412 (2.8%)
  • Bus or coach317 (2.2%)
  • Other332 (2.3%)
  • Not recorded7 (under 0.1%)

Casualties by age

  • 0 to 5239 (2.1%)
  • 6 to 10444 (4%)
  • 11 to 15756 (6.8%)
  • 16 to 201,747 (16%)
  • 21 to 251,489 (13%)
  • 26 to 352,315 (21%)
  • 36 to 451,554 (14%)
  • 46 to 551,095 (9.8%)
  • 56 to 65679 (6.1%)
  • 66 to 75475 (4.3%)
  • Over 75342 (3.1%)
  • Not recorded26 (0.2%)

Drivers, passengers and pedestrians

  • Driver or rider5,900 (53%)
  • Passenger3,086 (28%)
  • Pedestrian2,175 (19%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A666

Map of the 25 most recent crashes on the A666

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 25 crashes
  • Serious
  • Slight

A666 crashes by council area

Collisions on the A666 were recorded in 6 council areas. Blackburn with Darwen has the most, with 3,820, followed by Bolton (2,995) and Salford (1,092).

Collisions on the A666 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBlackburn with Darwen3,8205,18873641
2ndBolton2,9954,18956382
3rdSalford1,0921,47410175
4thRibble Valley197272238
5thManchester91101
6thStockport5700

A666 crashes by town

Collisions on the A666 were recorded in 10 towns and built-up areas, led by Blackburn, Blackburn with Darwen (2,172) and Bolton, Bolton (2,007).

Recent crashes on the A666

These are the 25 most recent collisions on the A666, from 21 August to 28 December 2025.

Severity