Region: Wales
The North Wales Coast Road. A55
Statistics and options.
| Section | Opened to traffic |
| A55 Improvement at Chester | 1991 |
Chester Southerly By-pass | 1976 |
Hawarden By-pass | 1984 |
Northop Hall Crossroads to East of Gables | 1975 |
East of Northop Crossroads to East of Gables | 1974 |
Northop By-pass | 1989 |
| Coed y Cra to Chaingates | 1976 |
| Holywell By-pass stage 1 | 1980 |
| Holywell By-pass stage 2 | 1986 |
| Travellers Inn Improvement | 1990 |
| Rhuallt Hill Improvement | 1992 |
| East of St Asaph to Waen gate | 1970 |
| St Asaph By-pass | 1970 |
| Bodelwyddan By-pass | 1986 |
| East of Abergele Improvement | 1981 |
| Abergele By-pass | 1969 |
| Colwyn Bay By-pass | 1985 |
| Conwy Crossing | 1991 |
| Penmaenbach | 1989 |
| Penmaenmawr By-pass | 1989 |
| Pen y Clip Tunnel | 1993 |
| Llanfairfechan By-pass | 1989 |
| Aber lmprovement | September 1991 |
| Aber to Tal'r Melbon | 1969 |
| Bangor By-pass | 1993 |
| A55 across the Island of Anglesey | March 2001 |