Thursday, December 23, 2010
It is a steel cantilever bridge and was engineered by Halcrow.
By 1990 the supporting piers were collapsing into the Clyde and, by the end of the millennium, a major engineering project was required to repair the bridge. The deck was lifted by 20mm on huge hydraulic jacks to allow the construction of new piers without interrupting the traffic. I know the bridge quite well, I have crossed it about 12,000 times, but I hadn't seen it from this angle before.