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Contractor Mowlem Northern Civil Engineering has passed the half-way mark on its £6.5 million job to beef up the 140-year-old, 252m long Victorian Newton Cap viaduct in County Durham to cope with traffic using the A689 road. Mowlem contracts manager David Watson said: 'The conversion involves taking the old masonry structure down to the brick arch and constructing a new structural base, built to level with lightweight concrete.' John Shelley of consultant Bullen and Partners said: 'Every pier is virtually on a different ground structure, which made an analysis of the foundation loads very difficult.' CONSTRUCTION NEWS