crosses at Shotton with interchange facilities. Flint Prestatyn Rhyl Abergele Colwyn Bay Llandudno Junction Lines diverge to serve Blaenau Ffestiniog and Llandudno (via the Conwy Valley Line) Conwy Penmaenmawr Llanfairfechan Bangor Llanfairpwll Line diverges to Amlwch (Anglesey Central Railway, disused) Bodorgan Ty Croes Rhosneigr Valley Freight from Wylfa nuclear power station is loaded at a depot in Valley Holyhead Services Principal through passenger services are London Euston to Holyhead, Bangor, Chester and Wrexham General operated by Avanti West Coast and Crewe to Holyhead, Cardiff to Holyhead and Manchester to Llandudno currently operated by Transport for Wales Rail. A revised timetable has operated since December 2005 incorporating a new service to and from Cardiff Central every two hours. The line still provides the UK railway part of the through passenger service to Dublin using fast car ferries from Holyhead to Dublin Port. Future The Welsh Government would like the line to be electrified, especially if Crewe becomes a rail hub due to HS2 in 2026. Chancellor George Osborne said in July 2015 that there was a "really strong case" for electrification of the line. The Electrification Task Force said that the Chester to Crewe line was a Tier 2 priority for being electrified in the CP6 period (2019-2024). New trains Class 221 units currently operate long-distance services to Holyhead from London Euston for Avanti West Coast. These are due to be replaced by Class 805 units in 2023. These new units will be able to run using the overhead wires from Euston to Crewe, before switching to diesel power from Crewe to Holyhead. Transport for Wales Rail operate regional services using Class 175 and Class 158 units. These will be replaced from 2022 onwards by Class 197 units. Proposed stations There are two proposed railway stations on the line, proposed as part of the North Wales Metro. The two stations are both in Flintshire: at Greenfield and Broughton. References Further reading Railway lines in Wales Railway lines in North West England Standard gauge railways in Wales Standard gauge railways in England Railway lines opened in 1850