Millau Sky Bridge

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Rating: 9.3/10 (19 votes cast)
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Richard Hammond reveals the engineering inspirations behind the tallest road bridge in the world – the Millau Viaduct in France.

He fires three quarters of a million volts from his fingertips to see how the power of lightning cut the steel structure quickly and accurately. The huge piers – 340 metres high, and which would look down on the Eiffel Tower – were positioned to millimetre accuracy with the system that located lost nuclear submarines.

The longest road-deck in the world was launched along the top of the piers and required the slipperiest substance known to man – Teflon; not even a gecko can stick to it. Steel cables hold the bridge in shape, borne of a series of mining accidents. And to allow the bridge to expand a metre and a half in the summer sun, the engineers turned to an ancient Celtic boat-building technique which can make concrete as bendy as wood.

Millau Sky Bridge, 9.3 out of 10 based on 19 ratings

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  • Gabriel

    Millau Sky Bridge!

  • denbenenki

    BEAUTIFUL!

  • Loretta

    The bridge is indeed a sculpture on the landscape. And learning aboUt the connections that led to such a feat of engineering was enlightening.