Severn Tunnel Overhead Power System Upgrade
Sector: Metal • Location: Newport and Bristol Parkway, Wales and England, United Kingdom
Source: Megaproject
Network Rail and contractors ARQ are carrying out a major upgrade of the Severn Tunnel's overhead power system to make it more resilient against the harsh, corrosive environment. The upgrade involves installing a single 7km copper contact wire supported by modified bridge arms along the full length of the 4.35-mile tunnel, reducing maintenance frequency and minimizing passenger disruption. The wor
- Status
- Under Construction
- Sector
- Metal, Power Generation (CCGT), Mass Transit, Bridge, Rail, Tunnel
- Location
- Newport and Bristol Parkway, Wales and England, United Kingdom
- Updated
- 22 Jul 2026
- Source
- Megaproject
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Project Information
Participants
| Not available for this record. |
Status
Original status | under construction |
Taiyo status | Under Construction |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | Network Rail and contractors ARQ are carrying out a major upgrade of the Severn Tunnel's overhead power system to make it more resilient against the harsh, corrosive environment. The upgrade involves installing a single 7km copper contact wire supported by modified bridge arms along the full length of the 4.35-mile tunnel, reducing maintenance frequency and minimizing passenger disruption. The work also includes improvements in the Bristol area, including upgrades to the railway serving the new Bristol Brabazon station. |
Original sector | railway |
Location
Country | United Kingdom (UK) |
State | Wales and England |
City | Newport and Bristol Parkway |
Source
Source | Megaproject |
URL |
More Details
Record type | Project |
Sector | Metal, Power Generation (CCGT), Mass Transit, Bridge, Rail, Tunnel |
Article published date | 2026-05-15 |
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