Heathrow Taxiway Kilo: Supplying UK-made steel for critical airside infrastructure
October 1, 2026

Supporting the redevelopment of Heathrow’s Taxiway Kilo with more than 6,000 tonnes of steel reinforcement, delivered within the demands of a live airport environment.

Project at a glance

Client Heathrow
Sub-contractor Ferrovial UK
Steel supplied 6,175 tonnes
Application Airfield infrastructure
Material CARES-approved reinforcement
Products Loose cut & bent and carpet reinforcement
Fabrication Welded to BS 17660
Delivery Just-in-time airside supply

Steel supply where timing matters

Heathrow’s Taxiway Kilo development forms part of the airport’s wider investment in improving aircraft movement around Terminal 2, reducing congestion and creating infrastructure to support future terminal expansion. 

Construction within a live international airport brings a different set of demands to the steel supply chain. Materials need to arrive when they’re required, but deliveries must also meet tight security standards as well as specific vehicle and driver requirements before they can enter airside areas. 

For the Kilo Taxiway development, 6,175 tonnes of CARES-approved reinforcement was supplied. This included loose cut, bent steel and prefabricated carpet reinforcement.

A supply chain built around the project

As construction progressed, design requirements continued to evolve, creating additional demand for responsive and project-critical supply.

Using a local depot in Hayes, Middlesex, provided an important part of that flexibility. Its proximity to Heathrow allowed late and express call-offs to be accommodated while maintaining the flow of material to the project.

Airside deliveries required additional layers of planning and compliance. Driver training and approval processes were completed and maintained throughout the project, while vehicles and drivers had to meet Heathrow’s requirements for airside access, adding to the complexity of the project. 

Deliveries were coordinated through the airport’s Fulcrum booking system, with regular site compliance, meetings and programme updates helping keep logistics aligned with construction requirements.

Alongside the main reinforcement supply, additional products including couplers, shear rails and accessories were proposed, approved and supplied where they provided suitable buildability solutions.

The project demonstrated the importance of a flexible supply chain, capable of adapting to changing site, logistics and compliance requirements while maintaining continuity of supply.

Recycled steel supporting UK steel

Taxiway Kilo also provides an example of how recycled steel is returned to use in major UK infrastructure.

Through 7 Steel UK’s closed-loop supply chain, UK-sourced scrap can be recycled and manufactured into new steel for use across construction and infrastructure projects.

At Heathrow, that circular approach connected domestic steel production with the ongoing investment in one of the UK’s most important transport hubs, putting recycled material back to work in infrastructure built for long-term use.