Ex-HS2 analyst urges review of £58bn cancellation estimate

A previous HS2 expense expert has actually required an independent evaluation into the federal government’s approximated expense of cancelling the HS2 high-speed railway, in the middle of continuous analysis over the rate of the megaproject.

Stephen Cresswell is prompting the National Audit Office (NAO) to evaluate the Department for Transport’s (DfT) cancellation expense quote.

The high-speed rail program remains in the middle of a reset targeted at cutting expenses, which is because of conclude next spring.

At the centre of the problem, according to Cresswell, is that the DfT used a 66 percent “optimism predisposition uplift” to a cancellation quote it commissioned.

The Treasury’s Green Book states that a 6 percent to 66 percent uplift can be used to “non-standard” engineering jobs to combat the danger of ignoring.

Building News comprehends the uplift was inspected by the DfT’s Economic Centre of Excellence– its own internal advisory system.

With the 66 percent uplift, the DfT-commissioned price quote put cancellation and removal expenses at ₤ 33bn to ₤ 58bn in 2025 costs, omitting cash currently invested.For contrast, the federal government approximated in October 2025 that an additional ₤ 46.8 bn to ₤ 61.7 bn would be required simply to finish HS2.

Since March this year, an approximated ₤ 44.2 bn had actually been invested in HS2’s very first stage, the DfT stated in May. It included that ₤ 2.6 bn had actually been invested in the axed 2nd stage from Birmingham to Manchester, making the general total ₤ 46.8 bn.

Both the expense of conclusion and cancellation have actually increased dramatically. In 2023, the DfT stated deserting the plan would cost ₤ 11bn in 2019 rates.

Cresswell, who won a work tribunal versus HS2 in 2024 and was granted settlement in 2015, argued there is no description regarding why the optimum uplift figure was utilized.

Without the 66 percent estimation, he stated, the optimum expense for cancellation would be ₤ 34.9 bn.

Speaking with CNCresswell stated: “It’s such a huge thing it requires to be taken a look at. The amount that validates the costs choice has actually not been inspected by anybody without a stake in the response.

“There are premises for an independent evaluation.”

The cancellation expense problem was likewise raised last month by MP Rupert Lowe, leader of conservative celebration Restore Britain, throughout a public accounts committee (PAC) proof session on HS2

Lowe declared the reality that the expense of cancellation had actually not been “individually confirmed” appeared like a “pig offer in between the DfT and HS2”.

Providing proof to the committee, HS2’s president Mark Wild responded: “I entirely comprehend the issue that we had a beneficial interest. The demand from the primary accounting officer, however, to me as the accounting officer, was to confirm the method and the variety of expenses.”

In a letter in May on the cancellation expenses, he composed: “Cancelling a program of the scale of HS2 is extraordinary in the western world. Precise price quotes are difficult to criteria.”

Describing the 66 percent uplift, Lowe stated it aimed to him as if “there has actually been an effort to make the truths fit the story due to the fact that it would be awkward to cancel”.

Shanmugalingam responded: “That originates from the Green Book as a suitable optimism predisposition to use to a program of this scale of immaturity, considered that we do not have a program to cancel.”

Wild concluded: “We did believe thoroughly about the reality that the cancellation of the task might be a lever.

“The truth is that, with 34,000 individuals on the task and ₤ 25m being invested every day, the supply chain would not believe that a reputable alternative.”

In May, transportation secretary Heidi Alexander dismissed cancelling HS2 as she informed Parliament “it might cost nearly as much to cancel the line as it would to complete it”. The previous Conservative federal government cancelled the Birmingham-to-Manchester leg of the task in October 2023.

CN comprehends the NAO does not presently have strategies to report on the cancellation quote.

A representative for the PAC stated it was not able to comment till its last questions report is released.

When gotten in touch with by CNthe DfT and HS2 indicated the proof offered by Wild and Shanmugalingam to the PAC.