Exclusive: New TTRO to be made for M48 Severn Bridge weight restrictions

25/04/2025 | GEORGE BARKER

Exclusive: New TTRO to be made for M48 Severn Bridge weight restrictions

National Highways has confirmed that a new Temporary Traffic Regulation Order (TTRO) covering the new M48 Severn Bridge weight restrictions, preventing vehicles over 7.5 tonnes from using the structure, will come into effect from next month.

The new restrictions came in after inspections revealed an increase in corrosion of the main cables of the bridge, prompting the National Highways to impose the restrictions to decrease the live load of the bridge.

National Highways said that a 2022 TTRO that had covered restrictions on vehicles over 7.5 tonnes on lane two of the bridge expired in September 2023, meaning that the bridge has been operating with unenforceable weight restrictions, despite red circled signs being displayed since then.

Speaking to Highways, National Highways said ‘we are not aware of any prosecutions’ that took place since the 2022 TTRO expired and that a new TTRO was not issued ‘due to the cable inspections and subsequent lab work’.

Built in 1966, the Severn Bridge previously carried the M4, but following the opening of the Prince of Wales Bridge in 1996, the Severn was redesignated as the M48.

Both bridges carry England and Wales bound traffic, but the advanced age of the Severn Bridge has meant that it has experienced more corrosion and deterioration, with the M4 Prince of Wales Bridge serving as the alternative route for HGVs directed away from the older structure.

The expired TTRO from 2022 was put in place after it was discovered in February of the same year that National Highways had failed to renew the previous traffic order, which had expired three years prior.

Highways InProfile

latest magazine issue
Highways jobs

Civil Enforcement Officers x 2

£26,403.00 - £28,142.00, Grade 5, 37 hours, Permanent
Parking Services are looking to recruit 2 full time Civil Enforcement Officers to complement its existing workforce. Wakefield, West Yorkshire
Recruiter: Wakefield Council

Senior Street Cleanse Technician x 3 (CDC)

Grade 6 £25,981 - £26,815
We are about to embark on an ambitious programme of change in our city. Doncaster, South Yorkshire
Recruiter: City Of Doncaster Council

Highways Development Officer

£37,280 - £40,777
This is an exciting time for a talented, self-driven professional to join us in the role of Highways Development Management Co-ordinator. Gloucester
Recruiter: Gloucestershire County Council

Principal Highways Development Officer

£48,226 - £51,35
This is an exciting time for a talented, self-driven professional to join us in the role of Highways Principal Development Management Co-ordinator . Gloucester, Gloucestershire
Recruiter: Gloucestershire County Council

Street Lighting Project Engineer

PO2 - £41,442 to £44,331
Help us keep our streets safe, efficient and ready for the future Greenwich, London (Greater)
Recruiter: Royal Borough of Greenwich

Principal Engineer - Highways Development Management

£47,181.00 - £50,269.00, Grade 11, 37 hours, Permanent
We are seeking a dedicated Principal Highways Development Management Engineer to join our team. Wakefield, West Yorkshire
Recruiter: Wakefield Council

Highways Development Management Engineer

£32,061.00 - £46,142.00, Career Grade 7-10, 37 hours, Permanent
Do you want to join a team helping to shape the future of Wakefield through HIghways Development Management? Wakefield, West Yorkshire
Recruiter: Wakefield Council

Highways Project Engineer

£31,537 - £42,839 per annum
Would you like to be part of our friendly, welcoming Highways team, proud to manage all aspects of the highway network? Boroughbridge, York
Recruiter: North Yorkshire Council

Highways Project Engineer

£31,537 - £42,839 per annum
Would you like to be part of our friendly, welcoming Highways team, proud to manage all aspects of the highway network? Skipton, North Yorkshire
Recruiter: North Yorkshire Council

Technician - Highway Inspector

Grade 8 £29,719 - £31,691 per annum
Within the Highways Maintenance Team we are looking for an enthusiastic, customer focused and experienced person Derbyshire
Recruiter: Derbyshire County Council

Highway Design and Construction Manager

Grade N, scp50 £62,443 to scp53 £65,663 per annum, plus essential car user allowance
We embrace AI to enhance our operations and to innovate our services. Bolton, Greater Manchester
Recruiter: Bolton Council

Technician - Highway Inspector

Grade 8 £29,719 - £31,691 per annum
At Derbyshire, we have been on a journey to transform the way we deliver highway services. Derbyshire
Recruiter: Derbyshire County Council

Team Leader (Maintenance Operations)

Grade 10 - £48,226 - £51,356
Cardiff is growing faster than any other capital city in Europe. Cardiff (Caerdydd)
Recruiter: Cardiff Council

Highways Supervisor

£Competitive
We have a fantastic opportunity for a permanent Highways Supervisor Forfar, Angus
Recruiter: Amey

Tree Surveyor

£Competitive
We are excited to offer fantastic opportunities for Permanent Tree Surveyors Scotland
Recruiter: Amey

Chief Operating Officer – South West Wales Corporate Joint Committee

£Competitive
We’re looking for a bold, visionary leader to take on the role of Chief Operating Officer Carmarthenshire (Sir Gaerfyrddin)
Recruiter: Carmarthenshire County Council

Clerk of Works - Highways

£Competitive
We have a fantastic opportunity for a Clerk of Works to join our dynamic NMC SW Account team at Polmadie. Glasgow, Glasgow City
Recruiter: Amey

Highways Supervisor

£Competitive
We have a fantastic opportunity for a permanent Highways Supervisor to join our NMC NE account in Kinross. Perth and Kinross
Recruiter: Amey

Planner - Highways

£Competitive
We have a fantastic opportunity for Permanent Planner – Highways to join our NMC SW Account. Glasgow City
Recruiter: Amey

Highways Maintenance Manager

£51,356 - £55,539 per annum
We are looking for an experienced Engineer to join the team as a Highways Maintenance Manager Selby, North Yorkshire
Recruiter: North Yorkshire Council
SUBSCRIBE NOW

Latest Video

Subscribe to Highways today to ensure you keep your finger on the pulse of everything happening in the UK road network throughout the year.

SUBSCRIBE NOW