With construction costs now 8% over budget, London’s 25-kilometer the Thames Tideway joint venture contractor completed the first tunnel breakthrough this month, with construction still on course for on-time completion in 2022.
The breakthrough by the team of Balfour Beatty, Morgan Sindall and BAM Nuttall completed the 1.1-km-long, 2.6-m-dia spur between Wandsworth and Fulham.