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CrashStats

B1166 accidents: crash map and statistics

Police recorded 550 collisions on the B1166 from 1979 to 2025, with 848 casualties. Of those crashes, 16 were fatal and 122 serious, and 17 people were killed.

In 2025 there were 8 collisions on the B1166, down 47% from 15 in 2024, with 8 casualties.

Collisions since 1979
550
1,818th highest of 4,923 roads
Casualties
848
1.54 per collision
Fatal collisions
16
17 people killed
Serious collisions
122
145 seriously injured
Collisions in 2025
8
Down 47% on 2024
Casualties in 2025
8
Down 65% on 2024

Crash severity on the B1166

On the B1166, 2.9% of collisions were fatal and 22% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal162.9%
  • Serious12222%
  • Slight41275%

Where the B1166 ranks among 4,923 roads

Most collisions
1,818th
Most casualties
1,647th
Most fatal collisions
1,181st
Most serious collisions
1,632nd

B1166 accidents by year

Collisions on the B1166 peaked at 18 in 2001 and were down to 8 in 2025.

Collisions and casualties on the B1166, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202588
20241523
2023912
2022912
202189
202045
20191420
20181112
20171119
201677
20151522
20141321
20131010
20121324
20111417
2010810
20091017
20081733
20071623
20061218
20051728
20041726
20031419
20021322
20011831
20001325
19991321
199866
19971320
199668
19951220
1994915
19931117
19921315
19911319
1990913
1989913
1988913
19871118
19861221
19851118
19841422
19831423
19821232
19811631
19801117
19791013

When crashes happen on the B1166

Friday has the most collisions on the B1166 (105), and 3pm to 6pm is the busiest time of day (128).

Collisions by day of the week

  • Monday64 (12%)
  • Tuesday83 (15%)
  • Wednesday72 (13%)
  • Thursday90 (16%)
  • Friday105 (19%)
  • Saturday77 (14%)
  • Sunday59 (11%)

Collisions by time of day

  • Midnight to 3am21 (3.8%)
  • 3am to 6am12 (2.2%)
  • 6am to 9am94 (17%)
  • 9am to noon60 (11%)
  • Noon to 3pm67 (12%)
  • 3pm to 6pm128 (23%)
  • 6pm to 9pm104 (19%)
  • 9pm to midnight64 (12%)

Collisions by month

  • January49 (8.9%)
  • February36 (6.5%)
  • March34 (6.2%)
  • April40 (7.3%)
  • May42 (7.6%)
  • June51 (9.3%)
  • July50 (9.1%)
  • August39 (7.1%)
  • September59 (11%)
  • October54 (9.8%)
  • November43 (7.8%)
  • December53 (9.6%)

Light conditions at the time

  • Daylight364 (66%)
  • Dark, no street lighting131 (24%)
  • Dark, street lights lit46 (8.4%)
  • Dark, lighting unknown5 (0.9%)
  • Dark, street lights unlit3 (0.5%)
  • Not recorded1 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B1166 crashes

On the B1166, 54% of collisions happened where the speed limit was 60 mph and 64% on a dry road surface.

Speed limit at the scene

  • 30 mph99 (18%)
  • 40 mph64 (12%)
  • 50 mph57 (10%)
  • 60 mph298 (54%)
  • 70 mph32 (5.8%)

Weather at the time

  • Fine, no high winds407 (74%)
  • Raining, no high winds47 (8.5%)
  • Fine with high winds28 (5.1%)
  • Fog or mist20 (3.6%)
  • Other32 (5.8%)
  • Not recorded16 (2.9%)

Road surface

  • Dry351 (64%)
  • Wet or damp167 (30%)
  • Frost or ice23 (4.2%)
  • Snow4 (0.7%)
  • Other2 (0.4%)
  • Not recorded3 (0.5%)

Type of road

  • Single carriageway541 (98%)
  • One way street or slip road4 (0.7%)
  • Dual carriageway2 (0.4%)
  • Not recorded3 (0.5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B1166 crashes

Car occupants make up 74% of the people killed or injured on the B1166, followed by motorcyclists (9.1%).

Casualties by road user

  • Car occupant625 (74%)
  • Motorcyclist77 (9.1%)
  • Van occupant37 (4.4%)
  • Cyclist34 (4%)
  • Pedestrian28 (3.3%)
  • Bus or coach occupant27 (3.2%)
  • Goods vehicle occupant (over 3.5 tonnes)15 (1.8%)
  • Other5 (0.6%)

Vehicles involved

  • Car660 (74%)
  • Motorcycle74 (8.3%)
  • Van or goods vehicle up to 3.5 tonnes57 (6.4%)
  • Pedal cycle37 (4.1%)
  • Goods vehicle over 3.5 tonnes35 (3.9%)
  • Other vehicle10 (1.1%)
  • Bus or coach7 (0.8%)
  • Other12 (1.3%)

Casualties by age

  • 0 to 515 (1.8%)
  • 6 to 1021 (2.5%)
  • 11 to 1557 (6.7%)
  • 16 to 20185 (22%)
  • 21 to 25112 (13%)
  • 26 to 35142 (17%)
  • 36 to 4599 (12%)
  • 46 to 5588 (10%)
  • 56 to 6563 (7.4%)
  • 66 to 7534 (4%)
  • Over 7520 (2.4%)
  • Not recorded12 (1.4%)

Drivers, passengers and pedestrians

  • Driver or rider554 (65%)
  • Passenger266 (31%)
  • Pedestrian28 (3.3%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B1166

Map of the 25 most recent crashes on the B1166

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B1166 crashes by council area

Collisions on the B1166 were recorded in 3 council areas. South Holland has the most, with 274, followed by Fenland (156) and South Kesteven (120).

Collisions on the B1166 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSouth Holland274432853
2ndFenland156256637
3rdSouth Kesteven120160232

B1166 crashes by town

Collisions on the B1166 were recorded in 2 towns and built-up areas, led by Deeping St James (62) and Crowland (8).

Recent crashes on the B1166

These are the 25 most recent collisions on the B1166, from 15 November 2023 to 8 December 2025.

Severity