The Dartford tunnel saw its longest ever free-flow load pass through it recently when it was used to transport an enormous 41-metre-long footbridge.
The footbridge, destined for Southend in Essex, was the length of nearly five double decker buses. It was moved in a carefully planned operation between Highways England, Essex Police and Connect Plus Services in a way that meant traffic at the crossing only needed to be held for three minutes.
The strategic road network is often used for transporting oversized cargoes. At 41 metres, the footbridge is the longest load ever to go through the Dartford tunnel.