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Widening the A31 to three lanes at Ringwood, between the A31 junction for Ringwood town centre, the B3347 Mansfield Road and the B3081 Verwood Underpass. Start date 2020-21 End date November 2022 Cost £25 to 30 million Latest updates Overview Documents Latest updates 15 December 2022 Open for traffic Our work to widen the A31 a…

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'…

We are developing proposals to reduce the impact of poor air quality alongside the A3 as it passes through Guildford. Start date Autumn 2024 End date Autumn 2026 Cost TBC Latest updates Overview Documents Latest updates 17 February 2025 Project developments and Public Information Events We have continued to closely monitor roadside nitrogen dioxide (NO₂) concentrations along the A3 as it…

Maintenance schemes taking place in the South East region. Overview Documents The latest maintenance schemes that will be running in this area can be found below in the 'Project information area'. Project information Ash die back works in the South East You can find more details about Ash die back works below: A21, A2, A27 and A259 Ash die back works - 28 July to 30 August 2025 Our surveys…

From across Hampshire and Berkshire to Surrey, Sussex and Kent, our 1967 miles of motorways and A-roads take people to visitor attractions like Windsor Castle, Ascot races, Legoland and Wembley Stadium. At holiday time the south coast, including Brighton and Bournemouth, draws the crowds via the M3 while those seeking an international getaway use the M25, the M23 and the M4 to fly from Gatwick an…

M4 to Dorset Coast: Strategic connectivity study December 2023 M4 to Dorset Coast - Strategic connectivity study Introduction National Highways is the government organisation which plans, designs, builds, RIS2 identified the need operates and maintains England’s motorways and major A-roads, known as the strategic road for an M4 to Dorset network (SRN). The roads we manage play a Coast study as fol…

We’re proposing to change junction 9, so it has free-flowing links between the M3 and the A34 in both directions Start date 2024-25 End date Road Period 3 (2025-2030) Cost £268 million to £322 million Latest updates Overview Documents Related road projects Latest updates 11 July 2025 Upcoming overnight closures - July Works We’ve been carrying out works ready for our next traffic phase…

National Highways Strategic Road Network England’s strategic road network (SRN) Motorway All purpose Scotland A1 Toll roads A19 A69 A1 Newcastle upon Tyne Carlisle A1 Sunderland M6 A19 A1(M) A66 Middlesbrough A595 A174 A66 A19 A590 A1(M) A64 A585 M6 York Leeds Irish Sea M55 M65 M1 M606 M621 Kingston upon Hull Preston M62 A63 A56 M61 M62 A1 A180 M58 Manchester M1 M18 Grimsby M180 Liverpool A616 M57…

National Highways Strategic Road Network England’s strategic road network (SRN) Motorway All purpose Scotland A1 Toll roads A19 A69 A1 Newcastle upon Tyne Carlisle A1 Sunderland M6 A19 A1(M) A66 Middlesbrough A595 A174 A66 A19 A590 A1(M) A64 A585 M6 York Leeds Irish Sea M55 M65 M1 M606 M621 Kingston upon Hull Preston M62 A63 A56 M61 M62 A1 A180 M58 Manchester M1 M18 Grimsby M180 Liverpool A616 M57…

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