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CrashStats

B6403 accidents: crash map and statistics

Police recorded 563 collisions on the B6403 from 1979 to 2025, with 858 casualties. Of those crashes, 22 were fatal and 124 serious, and 30 people were killed.

In 2025 there were 14 collisions on the B6403, up 27% from 11 in 2024, with 22 casualties.

Collisions since 1979
563
1,792nd highest of 4,923 roads
Casualties
858
1.52 per collision
Fatal collisions
22
30 people killed
Serious collisions
124
174 seriously injured
Collisions in 2025
14
Up 27% on 2024
Casualties in 2025
22
Up 83% on 2024

Crash severity on the B6403

On the B6403, 3.9% of collisions were fatal and 22% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal223.9%
  • Serious12422%
  • Slight41774%

Where the B6403 ranks among 4,923 roads

Most collisions
1,792nd
Most casualties
1,625th
Most fatal collisions
902nd
Most serious collisions
1,614th

B6403 accidents by year

Collisions on the B6403 peaked at 21 in 1996 and were down to 14 in 2025.

Collisions and casualties on the B6403, 1979 to 2025

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251422
20241112
202355
202256
2021920
2020915
201958
2018811
201777
2016912
20151014
2014911
20131224
20121517
20111121
20101117
200934
20081114
20071222
20061623
2005810
20041113
20031824
20021319
20011320
20001831
19991516
19981023
19971826
19962142
19952128
19941424
19931215
19921320
1991813
19901419
19891519
19881624
19871524
19861417
1985813
19841227
19831120
19821224
19811723
19801321
19791118

When crashes happen on the B6403

Friday has the most collisions on the B6403 (96), and 3pm to 6pm is the busiest time of day (127).

Collisions by day of the week

  • Monday82 (15%)
  • Tuesday81 (14%)
  • Wednesday93 (17%)
  • Thursday71 (13%)
  • Friday96 (17%)
  • Saturday65 (12%)
  • Sunday75 (13%)

Collisions by time of day

  • Midnight to 3am17 (3%)
  • 3am to 6am12 (2.1%)
  • 6am to 9am84 (15%)
  • 9am to noon76 (13%)
  • Noon to 3pm105 (19%)
  • 3pm to 6pm127 (23%)
  • 6pm to 9pm93 (17%)
  • 9pm to midnight49 (8.7%)

Collisions by month

  • January73 (13%)
  • February55 (9.8%)
  • March33 (5.9%)
  • April43 (7.6%)
  • May43 (7.6%)
  • June39 (6.9%)
  • July44 (7.8%)
  • August38 (6.7%)
  • September47 (8.3%)
  • October54 (9.6%)
  • November55 (9.8%)
  • December39 (6.9%)

Light conditions at the time

  • Daylight377 (67%)
  • Dark, no street lighting171 (30%)
  • Dark, street lights lit13 (2.3%)
  • Dark, lighting unknown1 (0.2%)
  • Not recorded1 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B6403 crashes

On the B6403, 83% of collisions happened where the speed limit was 60 mph and 55% on a dry road surface.

Speed limit at the scene

  • 20 mph1 (0.2%)
  • 30 mph21 (3.7%)
  • 40 mph14 (2.5%)
  • 50 mph2 (0.4%)
  • 60 mph467 (83%)
  • 70 mph58 (10%)

Weather at the time

  • Fine, no high winds406 (72%)
  • Raining, no high winds67 (12%)
  • Fog or mist23 (4.1%)
  • Fine with high winds21 (3.7%)
  • Other43 (7.6%)
  • Not recorded3 (0.5%)

Road surface

  • Dry309 (55%)
  • Wet or damp213 (38%)
  • Frost or ice22 (3.9%)
  • Snow12 (2.1%)
  • Flood over 3cm deep1 (0.2%)
  • Not recorded6 (1.1%)

Type of road

  • Single carriageway549 (98%)
  • One way street or slip road6 (1.1%)
  • Dual carriageway3 (0.5%)
  • Roundabout3 (0.5%)
  • Not recorded2 (0.4%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B6403 crashes

Car occupants make up 81% of the people killed or injured on the B6403, followed by motorcyclists (8.6%).

Casualties by road user

  • Car occupant696 (81%)
  • Motorcyclist74 (8.6%)
  • Van occupant34 (4%)
  • Goods vehicle occupant (over 3.5 tonnes)17 (2%)
  • Pedestrian13 (1.5%)
  • Cyclist8 (0.9%)
  • Other vehicle occupant7 (0.8%)
  • Other9 (1%)

Vehicles involved

  • Car785 (78%)
  • Motorcycle73 (7.3%)
  • Van or goods vehicle up to 3.5 tonnes59 (5.9%)
  • Goods vehicle over 3.5 tonnes46 (4.6%)
  • Other vehicle12 (1.2%)
  • Pedal cycle9 (0.9%)
  • Taxi or private hire car7 (0.7%)
  • Other12 (1.2%)

Casualties by age

  • 0 to 514 (1.6%)
  • 6 to 1013 (1.5%)
  • 11 to 1530 (3.5%)
  • 16 to 20105 (12%)
  • 21 to 25142 (17%)
  • 26 to 35180 (21%)
  • 36 to 45129 (15%)
  • 46 to 5593 (11%)
  • 56 to 6585 (9.9%)
  • 66 to 7544 (5.1%)
  • Over 7521 (2.4%)
  • Not recorded2 (0.2%)

Drivers, passengers and pedestrians

  • Driver or rider598 (70%)
  • Passenger247 (29%)
  • Pedestrian13 (1.5%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B6403

Map of the 25 most recent crashes on the B6403

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

  • 25 crashes
  • Serious
  • Slight

B6403 crashes by council area

Collisions on the B6403 were recorded in 2 council areas. South Kesteven has the most, with 496, followed by North Kesteven (63).

Collisions on the B6403 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSouth Kesteven49675219108
2ndNorth Kesteven63100316

Recent crashes on the B6403

These are the 25 most recent collisions on the B6403, from 5 January 2024 to 21 November 2025.

Severity