Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 12 Jan 1999 | Swansea | 2 | 1 | Slight |
| Sun 17 Jan 1999 | Neath Port Talbot | 1 | 1 | Slight |
| Tue 2 Feb 1999 | Swansea | 1 | 1 | Slight |
| Mon 22 Feb 1999 | Powys | 1 | 1 | Slight |
| Sat 6 Mar 1999 | Neath Port Talbot | 2 | 3 | Serious |
| Wed 10 Mar 1999 | Neath Port Talbot | 1 | 1 | Slight |
| Wed 24 Mar 1999 | Swansea | 2 | 1 | Slight |
| Mon 12 Apr 1999 | Swansea | 2 | 1 | Slight |
| Sun 18 Apr 1999 | Powys | 2 | 1 | Slight |
| Wed 26 May 1999 | Powys | 2 | 1 | Slight |
| Fri 28 May 1999 | Neath Port Talbot | 2 | 1 | Slight |
| Sun 6 Jun 1999 | Powys | 4 | 2 | Serious |
| Thu 1 Jul 1999 | Neath Port Talbot | 2 | 2 | Slight |
| Wed 7 Jul 1999 | Powys | 1 | 1 | Slight |
| Fri 16 Jul 1999 | Swansea | 1 | 1 | Slight |
| Wed 28 Jul 1999 | Powys | 2 | 1 | Slight |
| Wed 28 Jul 1999 | Powys | 2 | 1 | Slight |
| Wed 28 Jul 1999 | Powys | 2 | 1 | Slight |
| Sun 1 Aug 1999 | Swansea | 1 | 1 | Slight |
| Mon 30 Aug 1999 | Powys | 3 | 1 | Slight |
| Fri 22 Oct 1999 | Swansea | 1 | 1 | Slight |
| Sun 24 Oct 1999 | Neath Port Talbot | 2 | 1 | Slight |
| Wed 3 Nov 1999 | Swansea | 2 | 2 | Slight |
| Sat 6 Nov 1999 | Swansea | 1 | 2 | Fatal |
| Tue 30 Nov 1999 | Powys | 1 | 1 | Serious |
| Tue 30 Nov 1999 | Powys | 1 | 1 | Serious |
| Sat 4 Dec 1999 | Powys | 1 | 1 | Slight |
| Fri 10 Dec 1999 | Swansea | 2 | 1 | Slight |
| Tue 14 Dec 1999 | Swansea | 2 | 1 | Slight |
| Tue 14 Dec 1999 | Swansea | 1 | 1 | Slight |
| Tue 21 Dec 1999 | Swansea | 1 | 1 | Slight |
| Fri 24 Dec 1999 | Swansea | 2 | 1 | Slight |
| Tue 28 Dec 1999 | Swansea | 1 | 1 | Slight |
| Tue 28 Dec 1999 | Swansea | 3 | 1 | Slight |
| Tue 28 Dec 1999 | Swansea | 2 | 1 | Slight |