These are carried out every three months, and the bridge tracks are getting the usual mid-life overhaul which occurs midway through the 20-year life of the rails.

‘The rails are similar to conventional railways from the early 20th century, with the traditional “clickety clack” as vehicles pass over them,’ says bridgemaster, Alan Murray. ‘When the “clickety clacks” get louder or more frequent, it’s as if it’s the bridge’s way of telling us it needs some attention.’

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