John Martin Construction has been awarded a US$39 million contract to replace all 140 bearings on the northbound Thelwall Viaduct in Cheshire, England. The viaduct was partially closed to traffic in July 2002 after problems were discovered. Surveys showed a significant number of the roller bearings to be cracked and corroded, and so the Highways Agency decided to replace them all. The viaduct was opened in 1963 and refurbished in 1996. A new southbound viaduct opened eight years ago.