Rail

Railway Bridge and Infrastructure Engineering

We refurbish, strengthen and protect the structures that keep Britain's railway running. As a Network Rail Principal Contractor, we deliver bridge, viaduct and station works on live lines and in possessions, using our own access, coatings, steelwork and fabrication teams. From the Tay Rail Bridge to the Royal Albert Bridge, our people have worked on some of the most significant rail structures in the country.

Network Rail CP7 frameworks

We hold Network Rail frameworks for Control Period 7 in three regions:

  • North West and Central
  • Eastern
  • Scotland

We are also working on the TransPennine Route Upgrade (TRU), one of the largest rail investment programmes in the North of England.

Our rail services

  • Bridge and viaduct refurbishment: full-scope refurbishment of metallic, masonry and composite structures
  • Structural strengthening and steelwork repairs: repair strategies designed to meet minimum viable product (MVP) requirements, targeting the interventions that keep a structure safe and in service for the period required, at the lowest whole-life cost
  • Surface preparation and protective coatings: abrasive blasting and coating systems that extend asset life, with spent grit recycled rather than sent to landfill
  • Access and encapsulation: scaffolding, rope access and encapsulation designed around possessions and sensitive environments
  • Station works: canopy and roof refurbishment, platform replacements, walkways and footbridges
  • Civil engineering: drainage, embankments, geotechnical works and track-adjacent civils
  • New footbridges: steel and fibre reinforced polymer (FRP) footbridges designed, fabricated and installed

In-house fabrication

Our 100,000 sq ft fabrication facility in Blackburn details and builds new steel bridges, footbridges and replacement components. Keeping fabrication in-house gives us control over quality, programme and the carbon embodied in what we install.

Working safely on the railway

We understand that a railway line is part of a network, an environment and a community. We plan works to limit line closures and disruption to passengers, and to keep everyone on and around the line safe.

  • Accident Frequency Rate of zero in 2025/26
  • RoSPA Gold Medal for six consecutive years
  • RISQS registered and ISO 45001 certified

Lower carbon, higher social value

We were certified to PAS 2080:2023 by BSI in December 2025, meeting the carbon management benchmark Network Rail sets for its supply chain. Every major project has a Project Carbon Management Plan. On our CP7 work we have applied Defra's statutory biodiversity metric, and we measure community benefit using the Rail Social Value Tool.

Selected rail projects

  • Tay Rail Bridge: multi-phase refurbishment, including a £21m final phase
  • Royal Albert Bridge: refurbishment of Brunel's landmark crossing of the Tamar
  • Runcorn Viaduct: works on the wrought iron bridge carrying the West Coast Main Line Liverpool branch
  • Bristol Temple Meads Station: £45m station roof refurbishment for Network Rail

Our teams have worked from the Fenlands to the coastal routes of Cardigan Bay, and from the Firth of Forth to London's busiest commuter lines. Contact tender@taziker.com discuss your next project.