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Overview Documents HS2 represents a strategic investment in Britain’s future to create a modern railway for fast, frequent, reliable journeys. It supports the government’s mission to fix our railways, reversing decades of delays, cancellations and overcrowding across the network.  HS2 is a vital …

We’re upgrading 11.2 miles of central reservation barrier in Bedfordshire, upgrading it from steel to concrete, to improve the safety and reliability of journeys along this stretch of the M1. We're also installing more CCTV and improving traffic and information signs between the junctions. Start da…

National Highways undertakes reviews on major road schemes to measure impact against forecast. Our POPEs provide an opportunity to determine how effective we are in delivering improvements against our portfolio of major projects in the road investment programme. We compare the impact in key areas, …

We need to resurface M4 eastbound carriageway between junction 13 Chieveley Interchange and junction 12 Theale Interchange, near Reading, West Berkshire. Start date 2 June 2025 End date September 2025 Cost Approximately £5.9 million Latest updates Overview Documents Latest updates 15 May 202…

On 27 May 2025, we introduced a 7.5t weight restriction for heavy goods vehicles (HGVs) on the M48 Severn Bridge. It will last for an estimated 12 to 18 months On this page: Exceptions What will happen Impact Timing Background Routine surveys revealed that the main bridge cables have deterior…

N260 In the Statement of Costs High Court of Justice (summary assessment) King's Bench Division (CPR PF44 9.5) Judge Case QB-2021-003576, 3626 and 3737 Reference NATIONAL HIGHWAYS LIMITED -and- (1) PERSONS UNKNOWN CAUSING THE BLOCKING OF, ENDANGERING, OR PREVENTING THE FREE FLOW OF TRAFFIC ON THE M2…

We're cutting down and removing diseased trees suffering from ash dieback disease from the M11 between junctions 6 and 14. We will be replanting new trees of other native species that have been carefully chosen to ensure local habitats flourish. Start date November 2024 End date February 2025 Cos…

The bridge near Penrith that carries the M6 over the River Lowther needs extensive repairs. A major renovation project is underway to ensure the longevity of the structure for many years to come. Start date 31 March 2025 End date March 2027 Cost £9 million Latest updates Overview Documents Re…

M1 SmogStop® Air Quality Barrier Trial Final Report Clients: National Highways and Gramm Barrier Systems Ltd Authors: Dr Andreas Kafizas & Dr Glyn Rhys-Tyler Date: August 18th 2023 Version: 1.3 Status: Final This page is intentionally blank PAGE 2 Record of changes Released to Version Reason for change Date Martyn Gannicott 1.0 Draft final report incorporating July 7th 2023 (National Highways) res…

We’ve trialled 60 mph speed limits on five short sections of our network where action needed to be taken to reduce emissions and improve air quality. In this section What is happening? We have completed our work examining the impact of the 60mph speed limits made to roadside levels of nitrogen di…