This is the road bridge at the top of the A194(M) at Heworth in Gateshead. It looks like some Bailey bridges have been built on top of it! There are actually 4 of them - but why?
In fact they arenít really bridges at all. They have been put in place to strengthen the concrete road bridge while repairs are taking place to the supporting columns. They take some of the weight of the bridge and traffic while the supporting columns underneath the bridge are inspected for damage and repaired by Civil Engineers.
At the end of the project they will be taken to pieces and used elsewhere perhaps as a real bridge.