Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 9 Jan 1999 | Torfaen | 1 | 1 | Slight |
| Wed 13 Jan 1999 | Torfaen | 1 | 2 | Serious |
| Wed 13 Jan 1999 | Torfaen | 1 | 1 | Slight |
| Fri 15 Jan 1999 | Newport | 2 | 1 | Slight |
| Mon 25 Jan 1999 | Newport | 2 | 1 | Slight |
| Tue 26 Jan 1999 | Newport | 2 | 1 | Slight |
| Fri 5 Feb 1999 | Newport | 3 | 1 | Slight |
| Wed 10 Feb 1999 | Newport | 3 | 1 | Slight |
| Fri 12 Feb 1999 | Newport | 2 | 1 | Slight |
| Mon 15 Feb 1999 | Newport | 2 | 1 | Slight |
| Tue 16 Feb 1999 | Torfaen | 2 | 1 | Slight |
| Thu 25 Feb 1999 | Torfaen | 2 | 3 | Slight |
| Thu 25 Feb 1999 | Torfaen | 2 | 1 | Slight |
| Fri 26 Feb 1999 | Newport | 2 | 1 | Slight |
| Mon 1 Mar 1999 | Torfaen | 1 | 1 | Slight |
| Sun 7 Mar 1999 | Newport | 2 | 1 | Slight |
| Mon 8 Mar 1999 | Newport | 1 | 1 | Slight |
| Wed 10 Mar 1999 | Newport | 2 | 3 | Slight |
| Tue 16 Mar 1999 | Torfaen | 2 | 1 | Slight |
| Fri 26 Mar 1999 | Newport | 3 | 1 | Slight |
| Mon 29 Mar 1999 | Torfaen | 2 | 1 | Slight |
| Sun 4 Apr 1999 | Torfaen | 2 | 1 | Slight |
| Sun 11 Apr 1999 | Torfaen | 1 | 1 | Slight |
| Fri 16 Apr 1999 | Newport | 2 | 4 | Serious |
| Sat 8 May 1999 | Newport | 3 | 1 | Slight |
| Sun 9 May 1999 | Newport | 2 | 3 | Serious |
| Tue 18 May 1999 | Torfaen | 2 | 2 | Slight |
| Tue 1 Jun 1999 | Newport | 2 | 1 | Slight |
| Fri 4 Jun 1999 | Torfaen | 2 | 1 | Slight |
| Mon 7 Jun 1999 | Newport | 1 | 1 | Slight |
| Wed 16 Jun 1999 | Torfaen | 2 | 1 | Slight |
| Mon 28 Jun 1999 | Torfaen | 1 | 1 | Slight |
| Tue 29 Jun 1999 | Newport | 2 | 1 | Slight |
| Thu 8 Jul 1999 | Torfaen | 2 | 1 | Slight |
| Fri 9 Jul 1999 | Newport | 1 | 2 | Slight |
| Sat 10 Jul 1999 | Newport | 2 | 1 | Serious |
| Wed 21 Jul 1999 | Torfaen | 2 | 1 | Slight |
| Wed 28 Jul 1999 | Torfaen | 1 | 1 | Serious |
| Sat 14 Aug 1999 | Newport | 3 | 1 | Slight |
| Sat 14 Aug 1999 | Newport | 2 | 2 | Slight |
| Mon 16 Aug 1999 | Torfaen | 2 | 4 | Slight |
| Tue 17 Aug 1999 | Torfaen | 2 | 1 | Slight |
| Tue 17 Aug 1999 | Torfaen | 2 | 3 | Slight |
| Tue 24 Aug 1999 | Newport | 2 | 1 | Slight |
| Sat 11 Sep 1999 | Torfaen | 1 | 1 | Slight |
| Fri 17 Sep 1999 | Torfaen | 2 | 1 | Slight |
| Sat 25 Sep 1999 | Torfaen | 2 | 1 | Slight |
| Sun 3 Oct 1999 | Newport | 1 | 1 | Slight |
| Wed 6 Oct 1999 | Newport | 2 | 1 | Slight |
| Sun 24 Oct 1999 | Newport | 2 | 5 | Slight |
| Sun 31 Oct 1999 | Newport | 2 | 1 | Slight |
| Wed 10 Nov 1999 | Torfaen | 1 | 1 | Slight |
| Fri 3 Dec 1999 | Newport | 2 | 2 | Slight |
| Thu 9 Dec 1999 | Newport | 1 | 4 | Slight |
| Sun 26 Dec 1999 | Newport | 2 | 3 | Slight |