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Hidden extras The cost of strengthening the Avonmouth Bridge has almost trebled and the National Audit Office is investigating.

Back in 1995 it seemed more than reasonable to save the £750,000 cost of a detailed condition survey of the 20 year old steel box girder Avonmouth bridge. The structure had been continuously monitored and inspected during its working life and regularly maintained. There was no sign of significant corrosion inside the twin box girders. In fact the seven layers of paint that protected the steelwork were in virtually pristine condition. And to blast off the paint in the areas to be ...

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