HS2 rail line has been given an "unachievable" rating by the Infrastructure and Projects Authority, the government's 'centre of expertise for infrastructure and major projects'. This rating is for both the London-Birmingham leg and then onwards to Crewe.
It adds there are "major issues with project definition, schedule, budget, quality and/or benefits delivery, which at this stage do not appear to be manageable or resolvable".
The Department of Transport said the government remains committed to delivering HS2.
BBC news article