Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 12 Jan 1998 | Merthyr Tydfil | 2 | 1 | Slight |
| Fri 30 Jan 1998 | Merthyr Tydfil | 2 | 1 | Slight |
| Tue 3 Feb 1998 | Merthyr Tydfil | 2 | 1 | Slight |
| Wed 25 Feb 1998 | Merthyr Tydfil | 2 | 1 | Slight |
| Tue 7 Apr 1998 | Merthyr Tydfil | 3 | 1 | Slight |
| Sat 11 Apr 1998 | Merthyr Tydfil | 1 | 1 | Slight |
| Tue 14 Jul 1998 | Merthyr Tydfil | 2 | 5 | Serious |
| Sun 9 Aug 1998 | Merthyr Tydfil | 2 | 1 | Serious |
| Sat 15 Aug 1998 | Merthyr Tydfil | 2 | 5 | Serious |
| Sat 26 Sep 1998 | Merthyr Tydfil | 2 | 1 | Slight |
| Wed 7 Oct 1998 | Merthyr Tydfil | 1 | 1 | Slight |
| Tue 1 Dec 1998 | Merthyr Tydfil | 2 | 1 | Slight |