Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 6 Jan 1999 | Halton | 3 | 1 | Slight |
| Wed 6 Jan 1999 | Vale Royal | 3 | 2 | Serious |
| Sat 9 Jan 1999 | Congleton | 1 | 1 | Slight |
| Mon 18 Jan 1999 | Halton | 4 | 1 | Slight |
| Mon 18 Jan 1999 | Halton | 2 | 1 | Slight |
| Mon 18 Jan 1999 | Halton | 2 | 1 | Slight |
| Tue 19 Jan 1999 | Halton | 2 | 3 | Serious |
| Wed 20 Jan 1999 | Halton | 2 | 1 | Slight |
| Fri 22 Jan 1999 | Congleton | 2 | 1 | Slight |
| Sat 23 Jan 1999 | Wirral | 1 | 1 | Slight |
| Sun 24 Jan 1999 | Vale Royal | 2 | 2 | Slight |
| Tue 26 Jan 1999 | Halton | 2 | 1 | Slight |
| Tue 26 Jan 1999 | Vale Royal | 2 | 1 | Slight |
| Tue 26 Jan 1999 | Vale Royal | 2 | 1 | Slight |
| Thu 28 Jan 1999 | Congleton | 2 | 1 | Slight |
| Mon 1 Feb 1999 | Congleton | 2 | 1 | Slight |
| Wed 3 Feb 1999 | Congleton | 3 | 1 | Slight |
| Thu 4 Feb 1999 | Halton | 1 | 1 | Slight |
| Fri 5 Feb 1999 | Vale Royal | 2 | 3 | Slight |
| Fri 5 Feb 1999 | Halton | 2 | 1 | Slight |
| Wed 17 Feb 1999 | Vale Royal | 2 | 1 | Slight |
| Thu 18 Feb 1999 | Vale Royal | 2 | 2 | Slight |
| Tue 23 Feb 1999 | Halton | 2 | 2 | Slight |
| Sat 27 Feb 1999 | Vale Royal | 2 | 1 | Slight |
| Tue 2 Mar 1999 | Congleton | 3 | 2 | Slight |
| Mon 8 Mar 1999 | Halton | 2 | 1 | Slight |
| Sat 13 Mar 1999 | Congleton | 1 | 1 | Serious |
| Thu 18 Mar 1999 | Halton | 2 | 1 | Slight |
| Sun 21 Mar 1999 | Halton | 2 | 1 | Slight |
| Thu 25 Mar 1999 | Halton | 3 | 3 | Slight |
| Fri 26 Mar 1999 | Vale Royal | 1 | 1 | Serious |
| Thu 1 Apr 1999 | Vale Royal | 2 | 1 | Slight |
| Thu 15 Apr 1999 | Vale Royal | 3 | 2 | Slight |
| Thu 15 Apr 1999 | Vale Royal | 2 | 1 | Slight |
| Sat 17 Apr 1999 | Halton | 2 | 2 | Slight |
| Sun 18 Apr 1999 | Halton | 2 | 3 | Slight |
| Sun 18 Apr 1999 | Halton | 2 | 3 | Slight |
| Mon 19 Apr 1999 | Congleton | 2 | 4 | Serious |
| Fri 23 Apr 1999 | Vale Royal | 2 | 3 | Slight |
| Sat 24 Apr 1999 | Vale Royal | 1 | 1 | Slight |
| Sat 24 Apr 1999 | Halton | 2 | 2 | Slight |
| Mon 26 Apr 1999 | Congleton | 1 | 1 | Slight |
| Thu 29 Apr 1999 | Congleton | 2 | 1 | Slight |
| Sun 2 May 1999 | Halton | 2 | 4 | Slight |
| Wed 5 May 1999 | Halton | 2 | 1 | Slight |
| Thu 6 May 1999 | Vale Royal | 2 | 1 | Slight |
| Fri 7 May 1999 | Vale Royal | 2 | 1 | Slight |
| Fri 7 May 1999 | Vale Royal | 3 | 1 | Slight |
| Sat 8 May 1999 | Halton | 2 | 1 | Slight |
| Sat 8 May 1999 | Halton | 6 | 4 | Slight |
| Mon 10 May 1999 | Halton | 7 | 2 | Slight |
| Thu 13 May 1999 | Vale Royal | 2 | 1 | Slight |
| Mon 17 May 1999 | Congleton | 2 | 1 | Slight |
| Wed 19 May 1999 | Vale Royal | 3 | 1 | Slight |
| Thu 20 May 1999 | Halton | 2 | 2 | Serious |
| Fri 21 May 1999 | Halton | 2 | 3 | Slight |
| Tue 25 May 1999 | Congleton | 2 | 1 | Slight |
| Wed 26 May 1999 | Congleton | 2 | 3 | Slight |
| Fri 28 May 1999 | Congleton | 1 | 1 | Serious |
| Fri 4 Jun 1999 | Halton | 2 | 1 | Slight |
| Fri 4 Jun 1999 | Congleton | 1 | 1 | Slight |
| Sat 5 Jun 1999 | Halton | 2 | 2 | Slight |
| Sat 5 Jun 1999 | Halton | 2 | 2 | Slight |
| Sat 5 Jun 1999 | Halton | 2 | 2 | Slight |
| Mon 7 Jun 1999 | Halton | 2 | 2 | Slight |
| Mon 7 Jun 1999 | Halton | 2 | 2 | Slight |
| Mon 7 Jun 1999 | Halton | 1 | 1 | Slight |
| Wed 9 Jun 1999 | Vale Royal | 2 | 4 | Slight |
| Thu 10 Jun 1999 | Vale Royal | 2 | 1 | Slight |
| Sun 13 Jun 1999 | Halton | 2 | 2 | Slight |
| Tue 15 Jun 1999 | Halton | 2 | 1 | Slight |
| Thu 17 Jun 1999 | Halton | 2 | 1 | Serious |
| Thu 17 Jun 1999 | Halton | 2 | 1 | Serious |
| Fri 18 Jun 1999 | Congleton | 3 | 3 | Slight |
| Sat 19 Jun 1999 | Vale Royal | 1 | 1 | Slight |
| Mon 21 Jun 1999 | Congleton | 3 | 2 | Slight |
| Tue 22 Jun 1999 | Congleton | 1 | 1 | Slight |
| Tue 22 Jun 1999 | Halton | 10 | 4 | Slight |
| Tue 22 Jun 1999 | Halton | 2 | 1 | Slight |
| Wed 23 Jun 1999 | Halton | 1 | 3 | Slight |
| Wed 23 Jun 1999 | Halton | 2 | 1 | Slight |
| Fri 25 Jun 1999 | Halton | 1 | 2 | Serious |
| Mon 5 Jul 1999 | Halton | 2 | 1 | Slight |
| Tue 6 Jul 1999 | Vale Royal | 2 | 1 | Slight |
| Sat 10 Jul 1999 | Vale Royal | 2 | 1 | Slight |
| Sat 17 Jul 1999 | Congleton | 2 | 1 | Slight |
| Tue 20 Jul 1999 | Halton | 3 | 3 | Slight |
| Tue 20 Jul 1999 | Congleton | 2 | 1 | Slight |
| Thu 22 Jul 1999 | Halton | 2 | 2 | Slight |
| Thu 22 Jul 1999 | Halton | 2 | 2 | Slight |
| Tue 27 Jul 1999 | Wirral | 2 | 1 | Slight |
| Wed 28 Jul 1999 | Vale Royal | 2 | 1 | Serious |
| Fri 30 Jul 1999 | Vale Royal | 2 | 1 | Slight |
| Sun 1 Aug 1999 | Vale Royal | 2 | 1 | Slight |
| Wed 4 Aug 1999 | Congleton | 2 | 1 | Slight |
| Thu 5 Aug 1999 | Halton | 2 | 2 | Slight |
| Thu 5 Aug 1999 | Halton | 1 | 2 | Fatal |
| Thu 5 Aug 1999 | Halton | 1 | 2 | Fatal |
| Mon 9 Aug 1999 | Vale Royal | 2 | 2 | Slight |
| Wed 11 Aug 1999 | Congleton | 1 | 1 | Slight |
| Thu 12 Aug 1999 | Halton | 4 | 1 | Slight |
| Sat 14 Aug 1999 | Halton | 1 | 1 | Slight |
| Wed 18 Aug 1999 | Halton | 3 | 2 | Serious |
| Wed 18 Aug 1999 | Halton | 7 | 3 | Serious |
| Wed 18 Aug 1999 | Vale Royal | 2 | 3 | Serious |
| Fri 20 Aug 1999 | Halton | 3 | 5 | Slight |
| Fri 20 Aug 1999 | Halton | 2 | 1 | Slight |
| Mon 23 Aug 1999 | Halton | 2 | 1 | Slight |
| Mon 23 Aug 1999 | Halton | 2 | 1 | Slight |
| Thu 26 Aug 1999 | Congleton | 1 | 1 | Slight |
| Fri 27 Aug 1999 | Congleton | 2 | 2 | Slight |
| Sun 29 Aug 1999 | Congleton | 2 | 1 | Slight |
| Sun 29 Aug 1999 | Congleton | 2 | 1 | Slight |
| Thu 2 Sep 1999 | Halton | 1 | 1 | Slight |
| Mon 13 Sep 1999 | Halton | 2 | 1 | Slight |
| Wed 15 Sep 1999 | Congleton | 2 | 2 | Slight |
| Tue 21 Sep 1999 | Halton | 2 | 1 | Slight |
| Thu 23 Sep 1999 | Congleton | 1 | 2 | Slight |
| Mon 27 Sep 1999 | Congleton | 5 | 3 | Slight |
| Wed 29 Sep 1999 | Halton | 2 | 3 | Slight |
| Wed 29 Sep 1999 | Halton | 3 | 2 | Slight |
| Thu 30 Sep 1999 | Congleton | 2 | 1 | Slight |
| Thu 30 Sep 1999 | Congleton | 2 | 2 | Serious |
| Thu 30 Sep 1999 | Vale Royal | 2 | 1 | Slight |
| Fri 1 Oct 1999 | Halton | 2 | 1 | Serious |
| Fri 1 Oct 1999 | Halton | 2 | 1 | Serious |
| Sun 3 Oct 1999 | Congleton | 2 | 3 | Slight |
| Tue 5 Oct 1999 | Vale Royal | 1 | 1 | Slight |
| Thu 7 Oct 1999 | Halton | 2 | 1 | Slight |
| Fri 8 Oct 1999 | Halton | 2 | 1 | Slight |
| Fri 8 Oct 1999 | Congleton | 2 | 1 | Slight |
| Sat 9 Oct 1999 | Vale Royal | 2 | 1 | Slight |
| Sun 10 Oct 1999 | Vale Royal | 1 | 2 | Slight |
| Sun 10 Oct 1999 | Halton | 2 | 4 | Serious |
| Sun 10 Oct 1999 | Halton | 2 | 4 | Serious |
| Tue 12 Oct 1999 | Vale Royal | 2 | 1 | Slight |
| Tue 12 Oct 1999 | Vale Royal | 2 | 1 | Serious |
| Wed 13 Oct 1999 | Halton | 3 | 1 | Serious |
| Wed 13 Oct 1999 | Halton | 4 | 3 | Slight |
| Wed 13 Oct 1999 | Halton | 4 | 3 | Slight |
| Sat 16 Oct 1999 | Vale Royal | 1 | 1 | Serious |
| Sun 17 Oct 1999 | Halton | 2 | 1 | Slight |
| Sun 17 Oct 1999 | Congleton | 2 | 2 | Serious |
| Wed 20 Oct 1999 | Vale Royal | 5 | 2 | Slight |
| Thu 21 Oct 1999 | Halton | 5 | 5 | Slight |
| Sun 24 Oct 1999 | Halton | 1 | 1 | Slight |
| Mon 25 Oct 1999 | Halton | 1 | 1 | Slight |
| Tue 26 Oct 1999 | Halton | 2 | 3 | Slight |
| Tue 26 Oct 1999 | Congleton | 2 | 1 | Slight |
| Fri 29 Oct 1999 | Halton | 1 | 1 | Slight |
| Sun 31 Oct 1999 | Halton | 1 | 1 | Slight |
| Mon 1 Nov 1999 | Vale Royal | 1 | 1 | Slight |
| Thu 4 Nov 1999 | Halton | 2 | 3 | Slight |
| Sat 6 Nov 1999 | Congleton | 2 | 1 | Slight |
| Sat 6 Nov 1999 | Halton | 2 | 1 | Slight |
| Mon 8 Nov 1999 | Halton | 1 | 1 | Serious |
| Mon 22 Nov 1999 | Vale Royal | 2 | 2 | Slight |
| Tue 23 Nov 1999 | Vale Royal | 4 | 2 | Slight |
| Tue 23 Nov 1999 | Halton | 1 | 1 | Slight |
| Sat 27 Nov 1999 | Halton | 5 | 3 | Slight |
| Wed 1 Dec 1999 | Vale Royal | 2 | 1 | Slight |
| Sat 4 Dec 1999 | Vale Royal | 1 | 1 | Slight |
| Sat 4 Dec 1999 | Wirral | 2 | 1 | Slight |
| Fri 10 Dec 1999 | Vale Royal | 1 | 1 | Slight |
| Fri 10 Dec 1999 | Congleton | 2 | 1 | Slight |
| Sun 12 Dec 1999 | Congleton | 2 | 1 | Slight |
| Sun 12 Dec 1999 | Vale Royal | 2 | 1 | Slight |
| Tue 14 Dec 1999 | Vale Royal | 5 | 1 | Slight |
| Sat 18 Dec 1999 | Halton | 2 | 1 | Slight |
| Fri 24 Dec 1999 | Vale Royal | 2 | 1 | Slight |
| Mon 27 Dec 1999 | Halton | 1 | 1 | Serious |