Question to the Department for Transport:

To ask His Majesty's Government what lessons learned from the financing of the Dartford River Crossing they have applied to their plans for the Lower Thames Crossing.

A robust assessment of private investment options has been undertaken for the Lower Thames Crossing, with the short list outlined in the updated Funding Statement in February 2025. The RAB model has been chosen because it enables the private sector to deliver the scheme efficiently, reduces financial burden on taxpayers, harnesses the benefits of private investment, and ensures strong regulatory oversight to promote the interests of users. In developing the preferred financial model for the Lower Thames Crossing, the Government has drawn on lessons from the financing of previous road projects in the UK and abroad, including the Dartford River Crossing (Queen Elizabeth II Bridge). The RAB model shares a number of features with the Public–Private Partnership (PPP) structure used to fund that bridge infrastructure, but also includes a regulator to ensure that it is operated in a way that promotes user interests and is able to attract the level of investment required.