List of road projects in the UK explained

This article lists current and planned road building in the United Kingdom. Significant investment is expected, including plans for £14 billion of investment in road expansion by England's National Highways.^[1] In addition to physical expansion, smart motorways have been pursued as a means to increase capacity by introducing regular traffic on the hard shoulder. Transport is devolved, projects in Scotland, Wales, and Northern Ireland are delivered in co-operation with the devolved authorities of Transport Scotland, the Welsh Government, and DfI Roads respectively.

New roads currently under construction

England

Silvertown Tunnel
Heyhouses Link Road
Wichelstowe Southern Access
Grantham Southern Bypass
A5 to A43 link (Towcester bypass)^[2]
St Austell to A30 link road
Botley Bypass
Lyminster Bypass
North-South Link Road (Weston-Super-Mare)^[3]
Mottram Bypass (under preparation for construction^[4])

Scotland

Cross Tay Link Road

Northern Ireland

Newtownards Movilla Road to Donaghadee Road and Bangor Road Link
Larne Distributor (South)

Proposed new roads

Lower Thames Crossing
A new 16km (10miles) long dual carriageway paralleling the existing A428 road, between the A1 at St Neots and Cambourne, with enlarged junctions at either end.^[5] A £507 million contract to build the scheme was awarded in March 2021.^[6]
A new 12.9km (08miles) long dual carriageway between Morpeth and Felton, which will become part of the A1, expected to be completed by 2024-25^[7]
A new link road between the M54 and the M6, expected to be constructed between 2021–22 and 2024–25 at a cost of between £175 million and £200 million^[8]
Shrewsbury North West Relief Road
A new route to parallel the existing A83, currently under consultations^[9]
A27 Arundel bypass^[10]
A46 Newark-on-Trent bypass, under planning, expected to cost between £400m and £500m^[11]
Northampton North-West Relief Road, a 1.9km (01.2miles) bypass^[12]
A509 Isham bypass. Will start at Junction 9 A14 Kettering, bypassing Isham village reconnecting at Great Harrowden, reducing traffic between Kettering and Wellingborough.
Ashbourne bypass (a new 2.8 km road to the west of Ashbourne in Derbyshire)^[13]
Norwich Western Link route, a proposed new 3.8 mile dual carriageway road in Norfolk^[14]
A new 2.4km (01.5miles) dual carriageway west of Elmstead Market linking the A120 and the A133. Planning application submitted in April 2021 with an expected cost of £70 million.^[15]
A5036 Port of Liverpool Access
A66 Dualling Temple Sowerby to Appleby
A66 Dualling Stephen Bank to Carkin Moor
A64 Hopgrove, under planning,
Banwell Bypass from the A371 west of Banwell, Somerset, to the A368 near Sandford, with a spur towards the A371 Winscombe.^[16]

Expansion

- - Dualling of the A9 between Perth and Inverness A9 Tomatin to Moy (due 2027)
Dualling of the A96
- A96 Inverness to Nairn including Nairn Bypass
A66 Dualling: ^[17]
- Penrith to Temple Sowerby
- Appleby to Brough
- Bowes Bypass
- Cross Lanes to Rokeby
Dualling of 8 km (5 mi) of the A1 between Alnwick and Ellingham and 12.9 km (8 mi) between Morpeth and Felton, This is still awaiting government consent with a decision now due in June 2024
Dualling of the A47 between North Tuddenham and Easton, expected to cost £100 million to £250 million,^[18] and between Blofield and North Burlingham at a cost of £50 million to £100 million.^[19]
An additional lane for both sides of the A1 between Birtley and Coal House, a 6.5km (04miles) stretch. Approved in January 2021, Highways England stated the cost of this scheme was "yet to be determined".^[20]
Partial dualling of the A5, expected to start in 2024–25 at a cost of £20 million to £25 million^[21] ^[22]
Capacity increase for three junctions along the A38 in Derby, expected to start in 2021 and be completed by 2024–25 at a cost of £200 million to £250 million.^[23] The Secretary of State approved the scheme's Development Consent Order on 8 January 2021 allowing the scheme to proceed^[24]
M60 junction 18 capacity increase, expected to be constructed between 2024 and 2026 at a cost of between £66 million and £338 million^[25]
M42 capacity increase, including a new 2.4km (01.5miles) long dual-carriageway link road, a new junction, junction capacity increases, and a new pedestrian overbridge. Expected to be completed in 2024–25 at a cost of £282 million.^[26]
Berryden corridor, a road-widening project in Aberdeen^[27]
Grade separation of the Sheriffhall roundabout on the Edinburgh City Bypass, expected to cost £120 million^[28]
A465 Dowlais Top to Hirwaun (Section 5 and 6)
A1231 Dualling, Sunderland
A4440 Dualling, Worcester
A6 dualling - M22 to Castledawson
A6 dualling - Dungiven to Derry, under construction
M2 junction 5 (with the A249) capacity increase, started September 2021 and expected to end around Summer 2025 and cost £100 million^[29]
M621 junctions 1 to 7, capacity increase, Including extra lanes at J2.
A64 Askham Bryan Junction Improvement
M1/M62 Lofthouse Interchange