Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 2 Jan 1998 | Neath Port Talbot | 2 | 1 | Slight |
| Thu 12 Feb 1998 | Carmarthenshire | 1 | 1 | Slight |
| Fri 6 Mar 1998 | Carmarthenshire | 1 | 1 | Slight |
| Sun 10 May 1998 | Carmarthenshire | 2 | 1 | Serious |
| Thu 21 May 1998 | Caerphilly | 1 | 1 | Slight |
| Sat 23 May 1998 | Carmarthenshire | 1 | 2 | Slight |
| Sat 23 May 1998 | Caerphilly | 2 | 1 | Serious |
| Sun 7 Jun 1998 | Carmarthenshire | 2 | 1 | Slight |
| Sat 4 Jul 1998 | Carmarthenshire | 2 | 1 | Slight |
| Tue 14 Jul 1998 | Neath Port Talbot | 1 | 1 | Slight |
| Thu 16 Jul 1998 | Carmarthenshire | 2 | 3 | Serious |
| Sat 3 Oct 1998 | Carmarthenshire | 1 | 1 | Slight |