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M4 Relief Road in South Wales

One of 670 projects Taiyo tracks in Wales.

Source: Business Live

Project
Planned

The M4 relief road project in South Wales, south of Newport, was initially planned to alleviate traffic congestion on the M4 motorway near Newport, which is one of the most congested stretches in the UK. The project was scrapped by the Welsh Labour Government after spending over £150 million, including compulsory purchase of properties. The Welsh Conservatives have committed to building the relief

Status
Prospective
Sector
Road, Government, Commercial
Location
Newport, Wales, United Kingdom
Updated
22 Jul 2026
Source
Business Live

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Project Information

5 Q
The project “M4 Relief Road in South Wales” is an infrastructure initiative in the Road sector, located in Newport, Wales, United Kingdom. Taiyo aggregates data on it from Business Live.

Participants

Sponsoring Agency

Status

Original status

planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The M4 relief road project in South Wales, south of Newport, was initially planned to alleviate traffic congestion on the M4 motorway near Newport, which is one of the most congested stretches in the UK. The project was scrapped by the Welsh Labour Government after spending over £150 million, including compulsory purchase of properties. The Welsh Conservatives have committed to building the relief road to ease congestion and boost the Welsh economy.

Original sector

Transport

Budget

Location

Country

United Kingdom (UK)

State

Wales

City

Newport

Source

Source

Business Live

URL

More Details

Record type

Project

Sector

Road, Government, Commercial

Article published date

2025-09-16

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