Slower, Later, Smaller: HS2’s Collapse From National Vision To Costly Compromise

HS2 was supposed to be the project that proved Britain could still build big, modern railway infrastructure. Instead, the latest government update has turned it into something far more damaging: a case study in how a national transport vision can be cut down, delayed, redesigned, re-costed and still end up costing more than anyone was originally told. Transport Secretary Heidi Alexander has confirmed that the expected cost of delivering HS2 is between £87.7bn and £102.7bn, with an indicative cash estimate of £94.3bn to £112.4bn once projected inflation is included. The opening stage, between Old Oak Common and Birmingham Curzon Street, is now expected between May 2036 and October 2039, while the full scheme including Euston and Handsacre Junction is not expected until between May 2040 and December 2043.

That alone would be bad enough, but the most damning detail is what passengers are now being asked to accept for the money. HS2 was built around the language of high speed, but ministers have accepted plans to operate the railway at up to 320km/h rather than the higher original design ambition of 360km/h. The government says bringing HS2 into line with proven European high-speed operating standards will help deliver the line safely at the lowest reasonable cost, while the change could save between £1bn and £2.5bn. In plain terms, Britain is now spending vastly more, waiting far longer, and accepting a railway slower than the one that helped justify the scheme in the first place.

The story of HS2 is not simply one of inflation or difficult engineering. The government’s own statement says around two thirds of the expected cost increase is linked to necessary works missed from the original scope, under-estimation and inefficient delivery, with only around a third attributed to inflation. That is an extraordinary admission. It means this was not just a project battered by economic conditions; it was a project whose true scale, complexity and cost were not properly gripped from the start. When a railway can move from a previous £35bn–£45bn range in 2019 prices to an equivalent 2019 mixed-price range of £70.9bn–£82.2bn — and a headline current range of £87.7bn–£102.7bn — the public is entitled to ask whether anyone in power ever had a firm handle on what was being promised.

The Euston saga is perhaps the clearest symbol of that failure. HS2 was supposed to reach central London, yet the early service is now expected to start and end at Old Oak Common, leaving passengers to connect onwards rather than arriving at the capital’s main terminus. Euston remains in the government’s full-scheme plan, but the latest update still says part of the cost of delivering HS2 there is intended to come through private finance and other sources. That means the central London end of the railway, after years of demolition, disruption and uncertainty, still carries a funding and delivery question mark.

This is not a new problem. The National Audit Office warned back in 2023 that Euston was already in trouble, saying the 2020 reset of the station design had not succeeded and that the Department for Transport and HS2 Ltd had not developed an affordable scope integrated with wider activity at Euston. It reported that HS2 Ltd’s revised estimate for the station had risen to £4.8bn, £2.2bn above the budget for the station. The Public Accounts Committee later concluded that, despite more than eight years spent planning and designing HS2 Euston, the Department for Transport still did not know what it was trying to achieve with the station. Those are not minor management criticisms; they are warnings that the project’s central London gateway was being planned without a settled grip on cost, purpose or deliverability.

The wider route has also been hollowed out. HS2 was once sold as a transformational high-speed network, with a Y-shaped route intended to serve the Midlands and the North. Now the project has been cut back dramatically, with the government’s current cost and schedule focused on the line from London Euston to Birmingham Curzon Street and the connection to the West Coast Main Line at Handsacre Junction. That connection is important because it would allow HS2 services to continue towards the North West and Scotland, but it is not the same as the original promise of a new high-speed network reaching Manchester and Leeds. The public is left with the worst political combination: a scheme too advanced and too expensive to cancel cleanly, but too reduced to resemble the ambition that was used to sell it.

The most brutal question is whether HS2 now represents value, or merely inevitability. Ministers have examined whether cancelling the remaining scheme would make financial sense, but concluded that abandoning it could cost nearly as much as finishing it while delivering little lasting benefit. That is not a ringing endorsement of success. It is closer to an admission that the country is trapped: too much money has been spent, too much land has been taken, too much work has started, and yet the finished railway is years away, smaller than promised, slower than once envisaged, and still surrounded by uncertainty.

Supporters will argue that HS2 can still provide capacity, jobs, skills, regeneration and a faster intercity railway than Britain has today. Those points should not be dismissed. The government says the programme continues to support around 31,000 jobs, has helped 5,771 previously unemployed people into work since Phase 1 Royal Assent, and has created 2,136 apprenticeships since 2017. But those benefits do not erase the accountability problem. A project can support jobs and still be badly managed. It can deliver engineering achievements and still represent poor control of public money. It can remain worth finishing and still be a damning indictment of how decisions were made.

The HS2 reckoning is not just about one railway. It is about public trust. Passengers were promised speed, capacity, connectivity and a railway fit for the future. What they now see is a line that may not reach Euston or Handsacre until the 2040s, trains that will run slower than first planned, a route that has lost much of its original national reach, and a bill that could pass £100bn. If Britain wants to build major infrastructure again, HS2 is now the warning written in concrete, steel and political failure: ambition without discipline becomes waste, and a railway sold as transformation can end up looking like a very expensive retreat.