A55 road

The **A55**, also called the **North Wales Expressway** (Welsh: _Gwibffordd Gogledd Cymru_), is an important road in Great Britain. It goes between Chester, England and Holyhead, Wales. It goes along the north coast of Wales for most of its route. For most of the route, it is a dual carriageway. Many parts of the road act like a motorway.

It is also part of the European route E22, which links to Amsterdam, Riga, and Moscow. The route once went between Bangor and Chester, but was extended to Holyhead in 2001. This links to the Republic of Ireland through the Port of Holyhead. In total, the road is  long.

## Junctions

|colspan="5"|**A55 road junctions**|||||
| --- | --- | --- | --- | --- | --- |
|km|Westbound exits (B Carriageway)|Junction|Eastbound exits (A Carriageway)|||
|0.0|Holyhead ,  (Pedestrians) (Motor vehicles) Fish quay, Park and ride,  Long stay||_Start of road_|||
||Local traffic|TOTSO|Local traffic only|||
|0.5|Town centre <span style="color:black; background:white">**A5154**</span>|TOTSO|Town centre <span style="color:black; background:white">**A5154**</span>|||
|0.7|Trearddur Bay <span style="color:black; background:white">**B4545**</span>, Kingsland|J1|Trearddur Bay <span style="color:black; background:white">**B4545**</span>, Kingsland|||
|1.2 2.0|Trearddur Bay <span style="color:black; background:white">**A5153**</span> <span style="color:black; background:white">**(B4545)**</span>, Parc Cybi, Penrhos Stanley ,  Goods vehicles|J2|Trearddur Bay <span style="color:black; background:white">**A5153**</span> <span style="color:black; background:white">**(B4545)**</span>, Parc Cybi|||
|7.1 7.7|Valley <span style="color:black; background:white">**A5**</span>|J3|Valley, Caergeiliog <span style="color:black; background:white">**A5**</span>|||
|9.6 10.2|Caergeiliog <span style="color:black; background:white">**A5**</span>, Boderdern|J4|Bryngwran <span style="color:black; background:white">**A5**</span>, Boderdern|||
|14.0 14.6|Rhosneigr, Aberffraw <span style="color:black; background:white">**A4080**</span>, Bryngwran <span style="color:black; background:white">**(A5)**</span>|J5|Rhosneigr, Aberffraw <span style="color:black; background:white">**A4080**</span>, Gwalchmai <span style="color:black; background:white">**(A5)**</span>|||
|23.2 24.0|Rhostrehwfa <span style="color:black; background:white">**A5**</span>, Llangefni <span style="color:black; background:white">**(A5114)**</span>|J6|Pentre Berw <span style="color:black; background:white">**A5**</span>, Llangefni <span style="color:black; background:white">**(A5114)**</span>|||
|27.8 28.6|Gaerwen, Pentre Berw <span style="color:black; background:white">**A5152**</span> <span style="color:black; background:white">**(A5)**</span>|J7|Gaerwen, Llanfair Pwllgwyngyll <span style="color:black; background:white">**A5152**</span> <span style="color:black; background:white">**(A5)**</span>|||
|31.3|Llanfair Pwllgwyngyll <span style="color:black; background:white">**A5**</span>, Star|J7A|_No access_|||
|32.9 33.4|Benllech, Amlwch <span style="color:black; background:white">**A5025**</span>|J8|Menai Bridge, Amlwch <span style="color:black; background:white">**A5025**</span>|||
|33.8|Llanfair Pwllgwyngyll <span style="color:black; background:white">**A5(W)**</span>, Menai Bridge <span style="color:black; background:white">**A5(E)**</span>, Beaumaris <span style="color:black; background:white">**(A545)**</span>|J8A|_No access (on-slip only)_|||
||style=background:skyblue|_Entering Isle of Anglesey_||||
|34.1 34.4|colspan=3|_Britannia Bridge_||||
||||style=background:skyblue|_Entering Gwynedd_||
|35.3 35.6|Bangor, Caenarfon <span style="color:#FFD200; background:#00703C">**A487**</span>|J9|Bangor, Caenarfon <span style="color:#FFD200; background:#00703C">**A487**</span>|||
|36.4 37.0|Bangor <span style="color:black; background:white">**A4087**</span>, Caenarfon <span style="color:#FFD200; background:#00703C">**(A487)**</span>|J10|Bangor <span style="color:black; background:white">**A4087**</span>|||
|40.3 40.9|Bangor, Betws-y-Coed <span style="color:#FFD200; background:#00703C">**A5**</span>|J11 _Services_|Betws-y-Coed <span style="color:#FFD200; background:#00703C">**A5**</span>|||
|43.6 44.2|Tal-y-bont|J12|Tal-y-bont|||
|47.2 47.5|Abergwyngregyn|J13|Abergwyngregyn|||
|48.9 49.2|Llanfairfechan|J14|Llanfairfechan|||
||style=background:skyblue|_Entering Gwynedd_||style=background:skyblue|_Entering Conwy_|
|51.7|Llanfairfechan|J15|Llanfairfechan|||
|52.8 53.7|colspan=3|_Pen-y-Clip Tunnels_||||
|53.8 54.2|_No access (on-slip only)_|J15A|Penmaenmawr|||
|56.2|Penmaenmawr|J16|Penmaenmawr, Dwygyfylchi|||
||_Services_||_No access_|||
|57.8 57.8|Dwygyfylchi|J16A|_No access_|||
|58.4 59.1|colspan=3|_Penmaenbach Tunnels_||||
|60.4 61.0|Conwy <span style="color:black; background:white">**A547**</span> _End of special road_|J17|Conwy <span style="color:black; background:white">**A547**</span> _Start of special road_|||
|61.8 62.9|colspan=3|_Conwy Tunnel_ <small>()</small>||||
|63.6 64.2|Conwy <span style="color:black; background:white">**(A547)**</span>, Deganwy <span style="color:black; background:white">**A546**</span>|J18|Deganwy <span style="color:black; background:white">**A546**</span>, Llandudno Junction <span style="color:black; background:white">**(A547)**</span>|||
|64.8 65.5|Betws-y-Coed, Llandudno <span style="color:#FFD200; background:#00703C">**A470**</span>|J19|Llandudno, Betws-y-Coed <span style="color:#FFD200; background:#00703C">**A470**</span>|||
|68.7 69.8|Rhos-on-Sea <span style="color:black; background:white">**(B5115)**</span>|J20|Rhos-on-Sea <span style="color:black; background:white">**B5115**</span>|||
|70.6 71.0|Colwyn Bay <span style="color:black; background:white">**B5104**</span>|J21|Colwyn Bay <span style="color:black; background:white">**B5104**</span>|||
|71.5 72.0|Old Colwyn <span style="color:black; background:white">**(A547)**</span>|J22|Old Colwyn <span style="color:black; background:white">**(A547)**</span>|||
|76.0 76.1|Llanddulas <span style="color:black; background:white">**A547**</span> _Start of special road_|J23 _Services_|Llanddulas <span style="color:black; background:white">**A547**</span> _End of special road_|||
|80.0 80.4|_No access (on-slip only)_|J23A|Pensarn, Rhyl <span style="color:black; background:white">**A548**</span>|||
|81.2 81.9|Abergele, Rhuddlan <span style="color:black; background:white">**A547**</span>|J24|Rhuddlan, Prestatyn <span style="color:black; background:white">**A547**</span>|||
|84.6|Towyn, St. George|J24A|_No access_|||
||style=background:skyblue|_Entering Conwy_||style=background:skyblue|_Entering Denbighshire_|
||colspan=3|_Services_||||
|86.7 86.8|Bodelwyddan, Glan Clwyd|J25|Bodelwyddan, Glan Clwyd|||
|88.2 88.8|St Asaph Business Park|J26|St Asaph Business Park|||
|89.9 90.6|St Asaph, Rhyl <span style="color:black; background:white">**A525**</span>|J27|St Asaph, Rhyl <span style="color:black; background:white">**A525**</span>|||
|91.6 91.6|Denbigh <span style="color:black; background:white">**A525**</span>|J27A|_No access_|||
|92.9 93.2|Rhuallt <span style="color:black; background:white">**(B5429)**</span>, Trefnant|J28|Rhuallt, Tremeirchion <span style="color:black; background:white">**B5429**</span>|||
|96.7 97.3|Rhuallt, Tremeirchion <span style="color:black; background:white">**(B5429)**</span>|J29||||
||style=background:skyblue|_Entering Denbighshire_||style=background:skyblue|_Entering Flintshire_|
|99.0 99.3|Tremeirchion|J30||||
|100.3 100.8|Prestatyn <span style="color:black; background:white">**A5151**</span>, Caerwys <span style="color:black; background:white">**B5122**</span>|J31|Holywell <span style="color:black; background:white">**A5026**</span>, Caerwys <span style="color:black; background:white">**A5151**</span> <span style="color:black; background:white">**(B5122)**</span>|||
|108.7 108.8|Holywell <span style="color:black; background:white">**A5026**</span>|J32|Rhosesmor <span style="color:black; background:white">**(B5123)**</span>|||
|109.3 109.9|Rhosesmor <span style="color:black; background:white">**B5123**</span>|J32A|_No access (on-slip only)_|||
|111.3 111.4|Pentre Halkyn, Rhosesmor|J32B|_No access_|||
|114.6 115.3|Flint <span style="color:black; background:white">**A5119**</span>|J33|Mold, Flint <span style="color:black; background:white">**A5119**</span>|||
|116.5|Connah's Quay <span style="color:black; background:white">**B5126**</span>|J33A|Northop Hall|||
||colspan=3|_Services_||||
|120.0|Mold <span style="color:#FFD200; background:#00703C">**A494**</span>|J33B|_No access (on-slip only)_|||
|120.5 128.8|Queensferry <span style="color:#FFD200; background:#00703C">**A494**</span>|J34 TOTSO<sup>[See notes]</sup>|Queensferry <span style="color:#FFD200; background:#00703C">**A494**</span>, Manchester <span style="color:white; background:#0079C1">**(M56)**</span>|||
|123.1 123.6|Buckley <span style="color:black; background:white">**A550**</span> <span style="color:black; background:white">**(A549)**</span>, Corwen <span style="color:black; background:white">**(A5104)**</span>|J35|Wrexham <span style="color:black; background:white">**A550**</span>|||
|125.3 125.9|Pen-y-ffordd <span style="color:black; background:white">**A5104**</span>|J36|Broughton, Pen-y-ffordd <span style="color:black; background:white">**A5104**</span>|||
|128.5|Broughton <span style="color:black; background:white">**(A5104)**</span>|J36A|_No access (on-slip only)_|||
|128.6|style=background:skyblue|_Entering  and Flintshire_|_Border_|style=background:skyblue|_Entering  and Cheshire_|
||Wrexham, Chester <span style="color:#FFD200; background:#00703C">**A483**</span>|J38|Chester, Wrexham <span style="color:#FFD200; background:#00703C">**A483**</span>|||
||colspan=3|_River Dee_||||
||_No access (on-slip only)_|J39|Chester <span style="color:#FFD200; background:#00703C">**A5115**</span>, Whitchurch <span style="color:#FFD200; background:#00703C">**A41**</span>|||
||Chester, Nantwich <span style="color:#FFD200; background:#00703C">**A51**</span>, Whitchurch <span style="color:#FFD200; background:#00703C">**(A41)**</span>|J40|Chester, Nantwich <span style="color:#FFD200; background:#00703C">**A51**</span>|||
||_Start of road_|rowspan="2"|M53 J12|Chester, Helsby <span style="color:#FFD200; background:#00703C">**A56**</span> _Non-motorway traffic_||
||Chester <span style="color:#FFD200; background:#00703C">**A56**</span>|_Road continues as_ <span style="color:white; background:#0079C1">**M53**</span> _towards Ellesmere Port_||||
|colspan=4|**Notes** *Data from location marker posts are used to provide distance and carriageway identification information.  Where a junction spans several hundred metres and the data is available, both the start and finish values for the junction are shown. *Totso = "Turn off to stay on" meaning that the driver must leave the main carriageway to stay on the specified (A55) route.|||||
|colspan=4|**Coordinate list** ==References==|||||

## Infobox (road)

- **maint**:
Highways England
North and Mid Wales Trunk Road Agent
- **country**: GBR
- **type**: A
- **route**: 55
- **alternate name**: North Wales Expressway
- **map**:
- **map custom**: yes
- **image**: A55 road, Vicar's Cross 1.JPG
- **image notes**: Looking eastbound at junction 40
- **length mi**: 87
- **direction a**: West
- **terminus a**: Holyhead
- **direction b**: East
- **terminus b**: Chester
- **established**: 1922
- **history**: Completed: 2001
- **junction**:
J9 → A487 road

J11 → A5 road (Great Britain), A5 road

J19 → A470 road

J33B → A494 road

J34 → A494 road

J38 → A483 road
/
J39 → A41 road (Great Britain), A41 road/A5115 road

J40 → A51 road (Great Britain), A51 road

M53 motorway
- **counties**: Isle of Anglesey, Gwynedd, Conwy County Borough, Conwy, Denbighshire, Flintshire, Cheshire
- **destinations**: Holyhead
Bangor, Wales, Bangor
Conwy
Chester
- **previous type**: A
- **next type**: A
- **previous route**: 54
- **next route**: 56