Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 5 Jan 1998 | Flintshire | 2 | 1 | Serious |
| Tue 20 Jan 1998 | Chester | 2 | 1 | Slight |
| Wed 21 Jan 1998 | Flintshire | 2 | 1 | Slight |
| Sat 31 Jan 1998 | Flintshire | 3 | 1 | Slight |
| Sat 7 Feb 1998 | Denbighshire | 1 | 1 | Slight |
| Sat 14 Feb 1998 | Chester | 1 | 2 | Serious |
| Fri 20 Feb 1998 | Flintshire | 1 | 3 | Serious |
| Sat 21 Feb 1998 | Chester | 2 | 2 | Slight |
| Wed 25 Feb 1998 | Flintshire | 2 | 1 | Serious |
| Tue 3 Mar 1998 | Chester | 2 | 1 | Slight |
| Thu 5 Mar 1998 | Chester | 2 | 1 | Slight |
| Fri 6 Mar 1998 | Flintshire | 3 | 2 | Slight |
| Sat 7 Mar 1998 | Flintshire | 2 | 2 | Slight |
| Wed 11 Mar 1998 | Denbighshire | 1 | 2 | Slight |
| Sun 15 Mar 1998 | Flintshire | 2 | 5 | Serious |
| Tue 17 Mar 1998 | Chester | 2 | 1 | Slight |
| Wed 18 Mar 1998 | Denbighshire | 3 | 1 | Slight |
| Mon 23 Mar 1998 | Flintshire | 2 | 1 | Slight |
| Sun 29 Mar 1998 | Denbighshire | 1 | 1 | Slight |
| Wed 8 Apr 1998 | Chester | 2 | 1 | Slight |
| Wed 8 Apr 1998 | Flintshire | 3 | 1 | Slight |
| Wed 15 Apr 1998 | Flintshire | 2 | 2 | Slight |
| Sun 19 Apr 1998 | Chester | 2 | 1 | Slight |
| Thu 23 Apr 1998 | Flintshire | 2 | 1 | Slight |
| Fri 24 Apr 1998 | Denbighshire | 1 | 2 | Slight |
| Sun 26 Apr 1998 | Chester | 2 | 2 | Serious |
| Sun 3 May 1998 | Denbighshire | 3 | 1 | Slight |
| Tue 5 May 1998 | Chester | 3 | 1 | Serious |
| Mon 18 May 1998 | Denbighshire | 3 | 1 | Serious |
| Mon 1 Jun 1998 | Flintshire | 1 | 1 | Slight |
| Fri 5 Jun 1998 | Chester | 1 | 1 | Slight |
| Sun 7 Jun 1998 | Chester | 2 | 1 | Slight |
| Mon 8 Jun 1998 | Flintshire | 2 | 2 | Slight |
| Sat 20 Jun 1998 | Denbighshire | 2 | 1 | Slight |
| Thu 25 Jun 1998 | Flintshire | 2 | 1 | Slight |
| Thu 25 Jun 1998 | Chester | 2 | 1 | Slight |
| Fri 26 Jun 1998 | Chester | 2 | 1 | Slight |
| Fri 26 Jun 1998 | Denbighshire | 2 | 2 | Serious |
| Fri 26 Jun 1998 | Flintshire | 2 | 1 | Slight |
| Sun 28 Jun 1998 | Flintshire | 2 | 1 | Slight |
| Tue 7 Jul 1998 | Flintshire | 2 | 1 | Slight |
| Sun 12 Jul 1998 | Denbighshire | 1 | 1 | Slight |
| Fri 17 Jul 1998 | Flintshire | 2 | 1 | Slight |
| Tue 28 Jul 1998 | Chester | 2 | 1 | Slight |
| Sun 2 Aug 1998 | Flintshire | 3 | 3 | Slight |
| Wed 19 Aug 1998 | Flintshire | 2 | 1 | Fatal |
| Sun 23 Aug 1998 | Flintshire | 2 | 2 | Serious |
| Tue 25 Aug 1998 | Flintshire | 2 | 3 | Serious |
| Thu 3 Sep 1998 | Flintshire | 2 | 2 | Slight |
| Wed 9 Sep 1998 | Denbighshire | 2 | 3 | Slight |
| Thu 24 Sep 1998 | Chester | 2 | 1 | Slight |
| Sat 3 Oct 1998 | Flintshire | 2 | 1 | Slight |
| Thu 8 Oct 1998 | Flintshire | 2 | 1 | Slight |
| Tue 13 Oct 1998 | Denbighshire | 2 | 2 | Slight |
| Tue 13 Oct 1998 | Denbighshire | 1 | 1 | Slight |
| Mon 19 Oct 1998 | Chester | 2 | 1 | Slight |
| Wed 21 Oct 1998 | Denbighshire | 3 | 1 | Slight |
| Sat 24 Oct 1998 | Denbighshire | 1 | 1 | Serious |
| Sat 14 Nov 1998 | Denbighshire | 1 | 1 | Serious |
| Thu 19 Nov 1998 | Flintshire | 2 | 1 | Slight |
| Sun 22 Nov 1998 | Flintshire | 2 | 2 | Slight |
| Thu 26 Nov 1998 | Flintshire | 1 | 1 | Slight |
| Sat 19 Dec 1998 | Denbighshire | 2 | 1 | Slight |
| Mon 28 Dec 1998 | Denbighshire | 1 | 1 | Serious |
| Mon 28 Dec 1998 | Denbighshire | 2 | 1 | Slight |
| Thu 31 Dec 1998 | Flintshire | 1 | 1 | Slight |