Bridging the Gap: How the Severn...
BBC FOUR
Friday 23 December 2016 01:00 - 02:00 (60 mins)
...Bridge Was Built. The inside story of the design and construction of 'the most perfect suspension bridge in the world', and how its unique slim-line structure arose by accident. Also in HD. [AD,S]
Bridging the Gap: How the Severn... may be available on playback
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