UK Ministers Assume Direct Control of £10 Billion Lower Thames Crossing Project

Government Takes Direct Oversight

In a significant move to assert tighter control over major infrastructure developments, UK ministers have officially stripped the government's road-building agency, National Highways, of its direct responsibility for the £10 billion Lower Thames Crossing project. Oversight of what is considered the UK's largest planned infrastructure scheme has now been transferred to the Department for Transport (DfT). This decision, made by Keir Starmer's cabinet, reflects a broader strategy to prevent cost overruns and delays that have plagued previous large-scale projects.

Addressing Delays and Cost Concerns

The shift in management comes amid concerns regarding the project's financial trajectory and timeline. Internal consultation documents indicate that the DfT will now directly oversee the costs of the Lower Thames Crossing, allowing National Highways to 'focus on managing, maintaining and renewing the network'. Chancellor Rachel Reeves has reportedly expressed frustration over factors, including environmental considerations, that have contributed to delays and increased costs in major schemes. The project, which received final planning consent in March 2025, has already seen over £800 million spent on planning alone.

Project Scope and Future Outlook

The Lower Thames Crossing is designed to be a vital new road link connecting Kent and Essex, aiming to alleviate severe congestion at the existing Dartford Crossing. The scheme involves the construction of the UK's longest road tunnel, spanning approximately 2.6 miles (4.2 km), as part of a 14.5-mile (23km) new A-road that will link the A2/M2 to the M25 and A13. Construction is anticipated to commence in 2026, with the new crossing expected to open by 2032. The government recently pledged an additional £590 million for the project and is actively exploring private finance options, including seeking a partner to contribute up to £2 billion in exchange for tolling rights.

Environmental and Economic Impact

Despite its potential economic benefits, including improved connectivity for businesses in the Midlands and North with southern ports, the project has drawn criticism from campaigners. Concerns have been raised about the environmental impact, particularly on ancient woodland, and the potential for overspending akin to the HS2 rail project. However, the project is also pioneering innovative low-carbon construction techniques and aims to create six times more green space than road, including one million new trees and two public parks. The Transport Secretary, Heidi Alexander, will oversee this 'Tier 1' project, which the DfT classifies as one of the largest, highest risk, novel, and/or contentious schemes currently underway.