I am willing to adopt Meltwaterfall's (non)proposal and propose it myself. I find his arguments convincing.
Full name of site: Infrastructure of the Industrial Revolution in Britain
Country: UKShort description of site (also include multiple locations if applicable):
ajor works of Infrastructure created during the industrial revolution
Including: the Menai Straights Birdges including the world's first suspension bridge (and perhaps their miniatures in Conwy), Pont-Cysyllte Aqueduct, Clifton Suspension Bridge, Selected parts of the Great Western Railway (Box Tunnel, Maidenhead Railway Bridge, Paddington Station etc), Leeds-Liverpool Canal, Stockton-Darlington Railway, Forth Rail Bridge, Selected parts of London's subterranean infrastructure e.g. Thames Tunnel and parts of the Metropolitan Railway line, perhaps the already inscribed Ironbridge of Ironbridge Gorge and early steam 'railways' in Cornwall, maybe more. Criteria (cultural, natural, mixed):
c i. Many of these works were created by engineers of 'genius' such as Isambard Kingdom Brunel & Thomas Telford and have redefined both engineering and aesthetic standards.
ii. Built from the early industrial revolution through to the end of the 19th century these clearly show the interchange of ideas brought about the industrial revolution
iv. These are perhaps the finest engineering breakthroughs illustrating the industrial revolution.Outstanding universal value / comparative analysis:
Now I think it is very disparate and unfocussed, but I am thinking that serial sites such as the Belfires of Belgium and France and Pilgrimage Routs to Santiago are developed over a long period of time and contain different facets, maybe for coherence it could be reduced to the works associated with just Brunel? But with some work it would be something that would meet the four criteria set out by Solivagant and to some extent I think it could claim to be the maximum that each criteria could achieve.
a- These were the first of nearly everything, first 'railway', first suspension bridges, first Iron bridge, first underwater tunnel, first underground railway.
b- The influence of these projects essentially redefined the building of infrastructure throughout the world not just limited to the region or British Empire.
c- These were the means by which the industrial revolution redefined production and society, which has had an effect on almost every corner of the world. They enabled Britain to become the predominant world power of the age.
d- These contain several iconic projects most notably the Forth Rail Bridge but also Clifton Suspension Bridge, Menai Straight's Bridge, the 'Tube'