A Long Stretch

It doesn’t take a keen eye to notice that the road deck is absent from this archive image, as it was taken in 1978 before work on this had begun.

You can however, see the impressive cabling, which was completed by British Bridge Builders Ltd.  It needed 11,000 tonnes of wire to construct these supporting cables, which are each made up of 37 strands, and each of those comprise 404 wires.

The diameter of the cable is 700mm and there is enough wire in the bridge to go around the earth almost twice!