|Completion:||5 March 1850|
|Status:||destroyed (23 May 1970)|
Bangor, Gwynned, Wales, United Kingdom
Menai Straits Bridge (1826)
Britannia Bridge (1972)
|Coordinates:||53° 12' 58.21" N 4° 11' 10.85" W|
|length of side spans||70 m|
|total length||432 m|
|main spans (2x)||146 m|
A fire severely damages the metal superstructure which is subsequently demolished.
The bridge was originally designed to be a suspension bridge where cables would have supported the tubes and passed through the holes in the pylon tops. The tubes turned out to be stiff enough and the cables were left out. The bridge was considerably damaged by fire in 1970 and has since be rebuilt as an arch bridge, although the original piers remain intact. It now carries the A55 expressway in addition to the main railway line from London to Holyhead ferry port as previously.
Relevant Web Sites
- Der Turm und die Brücke. Die neue Kunst des Ingenieurbaus. Wilhelm Ernst & Sohn Verlag für Architektur und technische Wissenschaften, Berlin (Germany), ISBN 978-3-433-03077-6. (2013):
- La torre y el puente. El nuevo arte de la ingeniería estructural. CINTER, Madrid (Spain), ISBN 978-84-939305-4-7, pp. 300. :
- Conway and Britannia tubular bridges: Stephenson's team. In: Proceedings of the Institution of Civil Engineers - Engineering History and Heritage, v. 163, n. 1 (February 2010), pp. 51-60. (2010):
- Congestion threatens historic Britannia Bridge. In: Bridge Update, n. 72 (December 2007), pp. 2.
- The Britannia & other tubular bridges. Tempus Publishing. :
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