Editing Conwy (section)

===Railway bridge===
The [[Conwy Railway Bridge]], a [[tubular bridge]], was built for the [[Chester and Holyhead Railway]] by [[Robert Stephenson]]. The first tube was completed in 1848, the second in 1849.<ref>{{cite web|title=Conwy Tubular Bridge|url=http://www.engineering-timelines.com/scripts/engineeringItem.asp?id=383|website=Engineering Timelines|access-date=27 January 2017}}</ref> The bridge is still in use on the [[North Wales Coast Line]], along with the [[Conwy railway station|station]], which is located within the town walls. In addition to a modern bridge serving the town, the [[A55 road]] passes under the river in a tunnel, Britain's first immersed tube tunnel, which was built between 1986 and 1991.<ref>{{cite web|title=Conwy Immersed Tube Tunnel|url=http://www.engineering-timelines.com/scripts/engineeringItem.asp?id=381|website=Engineering Timelines|access-date=28 January 2017}}</ref> The old mountain road to [[Dwygyfylchi]] and [[Penmaenmawr]] runs through the [[Sychnant Pass]], at the foot of [[Conwy Mountain]].<ref>{{cite web|url=http://www.greatorme.org.uk/sychnant.html|title=The Sychnant Pass|publisher=Great Orme|access-date=27 November 2022}}</ref>