It is the largest single-span concrete arch bridge in the Western Hemisphere.

VOA: special.2010.10.27

Huge 80-metre-long turbine blades, made in a single span, for vast wind farms out at sea.

BBC: Vince Cable opens Bristol carbon fibre research centre

The Barlow train shed with its single span roof, a marvellous feat of Victorian engineering, is being restored.

BBC: St Pancras - the new link to the Channel Tunnel

The team's work offers such a sharp picture of the past that it is possible to trace the histories even of individual communities, such as one in Essex whose inhabitants built, used and then abandoned an enclosure within the span of a single generation.

ECONOMIST: The Neolithic