The U.K.’s London-Birmingham high-speed railroad project, HS2, is hitting its flexible construction schedule but faces significant pressure on its $46.5-billion target cost set at 2019 prices, according to the government’s latest assessment.
With nearly 30,000 workers spread across the project, contractors have opened 350 sites along the route, shifted more than 31 million cu yd of earth and launched five tunnel boring machines (TBMs).
