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CrashStats

B1121 accidents: crash map and statistics

Police recorded 125 collisions on the B1121 from 1979 to 2025, with 165 casualties. Of those crashes, 4 were fatal and 27 serious, and 4 people were killed.

In 2025 there was 1 collision on the B1121, level with 2024, with 1 casualty.

Collisions since 1979
125
3,802nd highest of 4,923 roads
Casualties
165
1.32 per collision
Fatal collisions
4
4 people killed
Serious collisions
27
30 seriously injured
Collisions in 2025
1
Level with 2024
Casualties in 2025
1
Level with 2024

Crash severity on the B1121

On the B1121, 3.2% of collisions were fatal and 22% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal43.2%
  • Serious2722%
  • Slight9475%

Where the B1121 ranks among 4,923 roads

Most collisions
3,802nd
Most casualties
3,838th
Most fatal collisions
2,815th
Most serious collisions
3,732nd

B1121 accidents by year

Collisions on the B1121 peaked at 7 in 2005 and were down to 1 in 2025.

Collisions and casualties on the B1121, 1979 to 2025

  • Collisions
  • Collisions in 2025: 1
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202511
202411
202334
202222
202111
202014
201927
201822
201755
201600
201522
201445
201322
201244
201145
201011
200900
200800
200723
200655
200578
200422
200345
200267
200159
200033
199955
199822
199733
199611
199549
199433
199345
199245
199147
199057
198933
198833
198733
198623
198511
198423
198300
198223
198124
198012
197925

When crashes happen on the B1121

Tuesday has the most collisions on the B1121 (24), and 3pm to 6pm is the busiest time of day (31).

Collisions by day of the week

  • Monday20 (16%)
  • Tuesday24 (19%)
  • Wednesday16 (13%)
  • Thursday23 (18%)
  • Friday22 (18%)
  • Saturday11 (8.8%)
  • Sunday9 (7.2%)

Collisions by time of day

  • Midnight to 3am1 (0.8%)
  • 3am to 6am2 (1.6%)
  • 6am to 9am21 (17%)
  • 9am to noon20 (16%)
  • Noon to 3pm24 (19%)
  • 3pm to 6pm31 (25%)
  • 6pm to 9pm17 (14%)
  • 9pm to midnight9 (7.2%)

Collisions by month

  • January9 (7.2%)
  • February5 (4%)
  • March12 (9.6%)
  • April8 (6.4%)
  • May9 (7.2%)
  • June6 (4.8%)
  • July11 (8.8%)
  • August7 (5.6%)
  • September15 (12%)
  • October10 (8%)
  • November18 (14%)
  • December15 (12%)

Light conditions at the time

  • Daylight91 (73%)
  • Dark, no street lighting25 (20%)
  • Dark, street lights lit7 (5.6%)
  • Dark, lighting unknown1 (0.8%)
  • Dark, street lights unlit1 (0.8%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B1121 crashes

On the B1121, 47% of collisions happened where the speed limit was 60 mph and 63% on a dry road surface.

Speed limit at the scene

  • 30 mph48 (38%)
  • 40 mph13 (10%)
  • 50 mph3 (2.4%)
  • 60 mph59 (47%)
  • 70 mph2 (1.6%)

Weather at the time

  • Fine, no high winds98 (78%)
  • Raining, no high winds14 (11%)
  • Fog or mist2 (1.6%)
  • Fine with high winds1 (0.8%)
  • Other9 (7.2%)
  • Not recorded1 (0.8%)

Road surface

  • Dry79 (63%)
  • Wet or damp42 (34%)
  • Frost or ice4 (3.2%)

Type of road

  • Single carriageway121 (97%)
  • Dual carriageway2 (1.6%)
  • One way street or slip road1 (0.8%)
  • Not recorded1 (0.8%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B1121 crashes

Car occupants make up 62% of the people killed or injured on the B1121, followed by cyclists (13%).

Casualties by road user

  • Car occupant103 (62%)
  • Cyclist22 (13%)
  • Motorcyclist18 (11%)
  • Pedestrian14 (8.5%)
  • Van occupant5 (3%)
  • Bus or coach occupant2 (1.2%)
  • Other vehicle occupant1 (0.6%)

Vehicles involved

  • Car161 (73%)
  • Pedal cycle22 (10%)
  • Motorcycle19 (8.6%)
  • Van or goods vehicle up to 3.5 tonnes7 (3.2%)
  • Goods vehicle over 3.5 tonnes5 (2.3%)
  • Bus or coach3 (1.4%)
  • Other vehicle2 (0.9%)
  • Minibus1 (0.5%)

Casualties by age

  • 0 to 52 (1.2%)
  • 6 to 102 (1.2%)
  • 11 to 157 (4.2%)
  • 16 to 2038 (23%)
  • 21 to 2516 (9.7%)
  • 26 to 3525 (15%)
  • 36 to 4520 (12%)
  • 46 to 5515 (9.1%)
  • 56 to 6517 (10%)
  • 66 to 7513 (7.9%)
  • Over 758 (4.8%)
  • Not recorded2 (1.2%)

Drivers, passengers and pedestrians

  • Driver or rider117 (71%)
  • Passenger34 (21%)
  • Pedestrian14 (8.5%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B1121

Map of the 25 most recent crashes on the B1121

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

B1121 crashes by council area

Collisions on the B1121 were recorded in 2 council areas. East Suffolk has the most, with 116, followed by Boston (5).

Collisions on the B1121 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stEast Suffolk116155427
2ndBoston5500

B1121 crashes by town

Of the 125 collisions on the B1121, 28 were in the built-up area of Saxmundham.

Recent crashes on the B1121

These are the 25 most recent collisions on the B1121, from 23 December 2013 to 8 May 2025.

Severity