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Thames Water has completed a 1.2km-long tunnel in the Holland Park area of London as part of a £10M scheme designed to reduce the likelihood of pipe bursts. Lovat tunnel boring machine 'Helen' broke through the wall of a specially built shaft at Campden Hill reservoir last week after achieving a rate of progress of up to 25m a day. Two new water mains will now be installed inside the 2.9m internal diameter tunnel to replace the 12 existing mains beneath Holland Park Avenue. The ...

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