Wikipedia: Maidenhead Railway Bridge - Article about Great Western Railway's brick arch crossing opened 1839, over the River Thames between Maidenhead, Berks and Taplow, Bucks. Includes history, its widening, references and links to related articles updated by the public. Wikipedia: Richmond Bridge, London - Article about the oldest multiple arch stone bridge to survive across the Thames in Greater London. Includes history, design by James Paine, construction, operation statistics, re-modelling, references updated by the public. Wikipedia: Severn Bridge - Article on the four lane motorway suspension bridge opened in September 1966, crossing both the Severn and Wye, from Aust,South Gloucestershire to Cheptsow, Monmouthshire. Includes history of construction, closures, ownership and statistics, with reference and related links by the public. Wikipedia: Humber Bridge - Article on the suspension bridge spanning 2,2 km with 2 lane dual carriageways opened in June 1981, between Hessle, East Riding of Yorkshire and Barton-upon-Humber, North Lincolnshire. Includes history, design, construction, image gallery, statistics, references and related links. Bridges by David Blockley - Resource dividing structures as BATS; beams, arches.trusses and suspension. A guide to classification with photographs from around the world. details of notable examples, and the gap between understanding of interaction within society, presented by Bristol University. Steelconstruction: Bridges - Encyclopedia for UK steel construction, covering design, Eurocodes, costs, thermal mass, fire engineering, embodied carbon, life cycle assessment. Includes photos with examples of versatility and specifications.