DODGY cement was used to repair a Swindon railway bridge, the Highway's Agency has revealed.
The agency, responsible for our motorways and trunk roads, found out in January that a company had supplied faulty cement.
Following a meeting with the supplier responsible, Lafarge Cement UK, the agency has discovered it was used to repair the parapets of the M4 Shrub railway bridge, near junction 16 in November 2002.
Highways Agency spokesman Robin Miller, said: "We know it was used there and the next stage is to identify how much has been used. It's too early to say what will happen."
The cement contains high levels of alkali. As a result the bridge is at risk of developing alkali silica reaction which could cause cracks.The site will now be monitored.
A spokesman for Lafarge said a small amount of cement at its Westbury plant was affected and it was working with its customers on every case.
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