This insignificant looking piece of ironwork is all that is left of the original tubular tunnel - a ground-breaking design that led to box-girder construction for buildings, ships and even their shipping containers. Creative Commons licence geograph-3101985-by-Meirion Copyright
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Categories & Keywords
Category:Transportation
Subcategory:Railway
Subcategory Detail:
Keywords:box-girder bridges, bridges, britannia bridges, cast iron, chester and holyhead railway, cymru, engineering, fairbairn, lions, stephenson, victorians, wales
