National Highways has refused to disclose data on the impact of its £317m M25 Junction 10 scheme, as it warned of further disruption throughout the coming year.
The government-owned company describes the junction – the interchange with the A3 at Wisley – as one of the busiest in the country, adding that it ‘experiences large queues and heavy congestion on a daily basis’.
Under the current Road Investment Strategy, National Highways must report on the impact of roadworks as a part of a key performance indicator.
The Junction 10 scheme has caused major queues around the works. However, five months on, data on the delays has not been published or disclosed.
This is despite Highways asking for a request made in August to be handled under the Freedom of Information Act, which requires a response within 20 working days.
Last week, the company said it was ‘still working on this request’. On the same day, National Highways said it is ‘set to ramp up construction activities in the coming months with a series of bridge demolitions and replacements structures installed’.
National Highways is warning road users about weekend closures that will take place ‘throughout the year’, with the first set to take place in February and March.
Senior project manager Jonathan Wade said: ‘A key element of our upgrade is the installation of eight new bridges – either replacements or new structures entirely.
‘As we enter a new phase for the project, we’ll ramp up our work on these structures with a number of demolitions and installation the bridge beams at different locations.’
National Highways said the upgrade is expected to be complete in summer 2025.