Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 10 Jan 2004 | East Riding of Yorkshire | 2 | 2 | Slight |
| Mon 2 Feb 2004 | Bassetlaw | 2 | 1 | Slight |
| Thu 5 Feb 2004 | East Riding of Yorkshire | 2 | 1 | Slight |
| Tue 10 Feb 2004 | North Lincolnshire | 2 | 2 | Serious |
| Fri 2 Apr 2004 | North Lincolnshire | 2 | 1 | Serious |
| Fri 9 Apr 2004 | East Riding of Yorkshire | 1 | 1 | Serious |
| Wed 14 Apr 2004 | East Riding of Yorkshire | 1 | 1 | Slight |
| Wed 14 Apr 2004 | East Riding of Yorkshire | 1 | 1 | Slight |
| Thu 15 Apr 2004 | North Lincolnshire | 1 | 1 | Slight |
| Fri 30 Apr 2004 | North Lincolnshire | 2 | 2 | Serious |
| Sun 2 May 2004 | North Lincolnshire | 2 | 2 | Slight |
| Fri 7 May 2004 | East Riding of Yorkshire | 3 | 2 | Slight |
| Wed 19 May 2004 | North Lincolnshire | 2 | 4 | Slight |
| Sun 6 Jun 2004 | North Lincolnshire | 1 | 1 | Slight |
| Mon 7 Jun 2004 | East Riding of Yorkshire | 1 | 1 | Slight |
| Sun 13 Jun 2004 | North Lincolnshire | 2 | 2 | Slight |
| Thu 24 Jun 2004 | East Riding of Yorkshire | 2 | 1 | Slight |
| Fri 2 Jul 2004 | Bassetlaw | 2 | 2 | Slight |
| Thu 15 Jul 2004 | Bassetlaw | 1 | 1 | Slight |
| Thu 22 Jul 2004 | North Lincolnshire | 1 | 2 | Serious |
| Wed 4 Aug 2004 | North Lincolnshire | 2 | 1 | Slight |
| Thu 5 Aug 2004 | North Lincolnshire | 1 | 1 | Serious |
| Tue 24 Aug 2004 | North Lincolnshire | 1 | 1 | Slight |
| Tue 24 Aug 2004 | North Lincolnshire | 2 | 1 | Slight |
| Tue 31 Aug 2004 | North Lincolnshire | 2 | 3 | Slight |
| Thu 9 Sep 2004 | North Lincolnshire | 2 | 2 | Serious |
| Fri 1 Oct 2004 | North Lincolnshire | 2 | 2 | Slight |
| Tue 5 Oct 2004 | Bassetlaw | 2 | 1 | Slight |
| Sat 9 Oct 2004 | East Riding of Yorkshire | 2 | 3 | Serious |
| Sat 9 Oct 2004 | North Lincolnshire | 2 | 1 | Slight |
| Sat 9 Oct 2004 | East Riding of Yorkshire | 1 | 1 | Slight |
| Sat 23 Oct 2004 | East Riding of Yorkshire | 1 | 1 | Fatal |
| Sun 7 Nov 2004 | Bassetlaw | 2 | 2 | Slight |
| Tue 9 Nov 2004 | North Lincolnshire | 1 | 1 | Slight |
| Sun 14 Nov 2004 | North Lincolnshire | 2 | 2 | Slight |
| Thu 25 Nov 2004 | Bassetlaw | 1 | 1 | Slight |
| Thu 25 Nov 2004 | Bassetlaw | 1 | 1 | Slight |
| Sun 28 Nov 2004 | North Lincolnshire | 1 | 3 | Slight |
| Sun 28 Nov 2004 | North Lincolnshire | 1 | 3 | Slight |
| Wed 1 Dec 2004 | East Riding of Yorkshire | 2 | 1 | Slight |
| Wed 1 Dec 2004 | North Lincolnshire | 2 | 3 | Serious |
| Fri 3 Dec 2004 | North Lincolnshire | 2 | 1 | Slight |
| Tue 7 Dec 2004 | North Lincolnshire | 2 | 1 | Slight |
| Wed 8 Dec 2004 | East Riding of Yorkshire | 2 | 2 | Serious |
| Wed 8 Dec 2004 | Bassetlaw | 1 | 2 | Slight |
| Thu 9 Dec 2004 | Bassetlaw | 1 | 1 | Slight |
| Thu 9 Dec 2004 | North Lincolnshire | 3 | 2 | Serious |
| Fri 10 Dec 2004 | North Lincolnshire | 1 | 1 | Slight |
| Sat 11 Dec 2004 | North Lincolnshire | 2 | 1 | Slight |
| Sun 12 Dec 2004 | North Lincolnshire | 1 | 1 | Serious |
| Tue 14 Dec 2004 | North Lincolnshire | 1 | 3 | Slight |
| Fri 24 Dec 2004 | East Riding of Yorkshire | 2 | 2 | Serious |