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Climate change and the strategic road network The challenge We must consider how the changing climate will affect our strategic road network - the 4,500 miles of motorways and major A-roads we manage including bridges, tunnels, drains and earthworks. The latest climate projections for the 2070s indicate that the UK may experience: Rainfall An increase in winter rainfall and more intense rainfall events in summer Temperature An increase in summer temperatures that may be between 0.9 and 5.…

The following policy relates to claims made against National Highways for alleged damage or injury incurred while on the strategic road network (SRN). These are known as 'Red Claims'. Introduction 1.1 A Red Claim is where a third party seeks to claim financial compensation from National Highways for damage or injury incurred whilst on our strategic road network (SRN). 1.2 The Highways Act 1980, (‘the Act’) is UK’s primary legislation to deal with the management and operation of the road netwo…

As part of our multi-million investment we’re carrying out a range of improvements along the A57, A628 and A61/A616 Westwood roundabout to improve journeys and safety. Overview Documents We’re responsible for motorways and major A-roads including the A57, A616 and A628 between Manchester and Sheffield. As part of our multi-million investment we’re carrying out a range of improvements along the A57, A628 and A61/A616 Westwood roundabout to improve journeys and safety for the thousands of drive…

The Hindhead Tunnel in Surrey is just under two kilometres long and is one of the longest road tunnels in the UK. It takes the A3 beneath the Devil's Punch Bowl, a Site of Special Scientific Interest. Latest updates Overview Documents Related road projects Latest updates 20 March 2025 Overnight closures - March and April We need to close the tunnel overnight for essential maintenance. We'll close the A3 southbound between A31 Hogs Back junction to Hazel Grove junction overnight (9pm to …

The A46 is a strategic road link between the East and West Midlands, connecting Coventry and Warwickshire to the motorway network. Traffic congestion has led to slower speeds, longer trip times and more queueing for drivers. By upgrading the A46 we’ll unlock this congestion, improve journey reliability and support economic growth across the West Midlands. Start date Late 2026 (TBC) End date Late 2028 (TBC) Cost £112.5 million (Walsgrave only) Latest updates Overview Documents Latest updat…

We’re putting in new drainage on the A14 near Spaldwick and Bythorn in Cambridgeshire to help reduce future flooding. Start date 3 March 2025 End date June 2025 Cost TBC Latest updates Overview Documents Latest updates 14 May 2025 Latest road closure dates We're installing new drains on the A14 near Spaldwick and Bythorn in Cambridgeshire to cope better with surface water, reducing flooding in the future. Work started on Monday 3 March.  Closures and diversions We're working overnigh…

We're installing average speed cameras at four different locations in the North West region, on the A585, A590, A66 and A663. This is part of our ongoing commitment to reduce the number of people harmed on the region’s roads Start date December 2024 End date March 2025 Cost TBC Overview Documents What we're doing A detailed safety review along four routes in the North West region highlighted a high percentage of collisions resulting in serious injury and death. Collisions have involved: …

Published 27 May 2025 Written by Dr Jennifer Dodd, Associate Professor for Biodiversity and Restoration Ecology at Edinburgh Napier University. Share this article The effect that human activity has on our landscape is immense. We modify our landscape to produce food, to create housing, to travel, and for enjoyment. One of the positive consequences of this is that we have more control over how the landscape responds to natural disturbance events (e.g. flooding, wildfires, storms, and drought)…

Click below to view our library of Freedom of Information requests In this section If you wish to view a previously submitted Freedom of Information request listed below, click on the link or please email us at FOI@nationalhighways.co.uk Lower Thames Crossing cost breakdown (8 April 2025) A request was made under the Freedom of Information Act regarding the cost of the Lower Thames Crossing recently granted government approval. Read more. The cost incurred so far, Lower Thames Crossing (26…

Find out more about the latest developments on the scheme In this section A686 eastbound closures - Friday 22 August The A686 eastbound between Kemplay roundabout and Carleton Underpass will be closed overnight (8pm - 6am) between Tuesday 26 August and Saturday 20 September.   We're installing a work access into land next to the north of the A686, next to the hospital, to perform utility diversions.  A signed diversion route will be in place. Please plan your journeys accordingly and allow …