Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 25 Feb 1998 | Isle of Anglesey | 1 | 1 | Serious |
| Wed 1 Apr 1998 | Isle of Anglesey | 2 | 1 | Slight |
| Sat 11 Apr 1998 | Isle of Anglesey | 2 | 1 | Serious |
| Sat 9 May 1998 | Isle of Anglesey | 2 | 1 | Slight |
| Wed 13 May 1998 | Isle of Anglesey | 2 | 1 | Slight |
| Sat 23 May 1998 | Isle of Anglesey | 1 | 1 | Slight |
| Fri 5 Jun 1998 | Isle of Anglesey | 2 | 2 | Slight |
| Wed 17 Jun 1998 | Isle of Anglesey | 1 | 1 | Slight |
| Tue 23 Jun 1998 | Isle of Anglesey | 2 | 1 | Slight |
| Fri 3 Jul 1998 | Isle of Anglesey | 1 | 1 | Slight |
| Tue 25 Aug 1998 | Isle of Anglesey | 2 | 2 | Slight |
| Fri 25 Sep 1998 | Isle of Anglesey | 2 | 1 | Serious |
| Thu 17 Dec 1998 | Isle of Anglesey | 2 | 1 | Slight |