Senior UK government officials commissioned an internal review this year to evaluate whether abandoning the High Speed 2 (HS2) rail project would provide better value for money amid mounting concerns over its escalating costs. The review examined the financial and logistical implications of halting the project, which has already absorbed £40 billion in public funds.
The findings, scheduled to be disclosed this week, indicate that canceling the line between London and Birmingham could be as costly, or even more expensive, than completing it. Furthermore, the analysis concluded that stopping the project would forfeit the potential benefits anticipated from the railway’s completion.
Transport Secretary Heidi Alexander is set to inform parliament about a comprehensive "reset" of the HS2 programme, including an update from HS2 chief executive Mark Wild. Alexander will acknowledge significant delays, pushing the railway’s opening beyond the mid-2030s, and warn that final costs could exceed £100 billion, rising well above previous official estimates.
Wild outlined the legal and practical challenges involved in decommissioning part or all of the scheme, stating that any cancellation would require “full remediation” of the land. This remediation would entail demolishing existing structures and restoring affected areas to their original condition in order to facilitate potential resale to former landowners. To date, HS2 construction has involved moving 100 million cubic metres of earth—roughly equivalent to the volume of 1,000 Royal Albert Halls—and has advanced work on dozens of viaducts, bridges, and nearly 50 miles of tunneling.
“These remediation costs could, in some cases, exceed what it took to build the infrastructure originally,” Wild wrote in a letter to Jo Shanmugalingam, permanent secretary at the Department for Transport.
Requests for details on this internal review were previously declined by officials, reflecting the sensitivity surrounding the project’s future. Since its inception under the Labour government in 2010, HS2’s cost projections have steadily increased, with the latest official estimate at around £80 billion in 2024 terms. Alexander is expected to present a revised cost range between just under £90 billion and £100 billion.
To mitigate expenses, officials are considering reducing the maximum operational speed of the trains from 360 km/h to 320 km/h, which could trim several billion pounds from the total cost. However, uncertainties linger due to unresolved plans for key infrastructure components, notably the redevelopment of London’s Euston station.
Originally designed as a Y-shaped network linking London, Birmingham, Leeds, and Manchester, the current proposal focuses on a route between Birmingham and Old Oak Common west of London.
The existence of the cost-benefit decommissioning review underscores government apprehension over whether HS2 remains a viable investment or risks becoming a costly white elephant. A government source emphasized that despite the project's troubled state, canceling it would eliminate the expected benefits to regional connectivity and national rail capacity without yielding substantial cost savings. The official stressed Alexander's resolve to steer the project toward delivering its intended outcomes despite the "appalling mess" inherited from previous administrations.