HS2 – the most challenging civil engineering projects in the UK. 

Designed to boost connectivity and to support the demand for increased UK rail infrastructure.

Playing our part in vital rail infrastructure.

At Tarmac we are proud to have secured a contract to supply concrete to Align, the joint venture (JV) that is delivering the C1 package of the UK High Speed 2 line (HS2). 

Under the contract, Tarmac will supply material for the construction of C1 route, a 21.6km section of high-speed rail project for up to six years.  Our experience and expertise in concrete design and supply has ensured full operational, commercial and technical responsibility for the operation and supply of concrete from 4 on-site concrete batching plants. 


British construction excellence

Concrete supply 

The route will include a 3.37km viaduct across the Colne Valley. It will also have 16.04km twin-bored tunnel and five vent shafts handling both intervention and tunnel ventilation facilities.

This major award reflects the scale of our manufacturing capability, the expertise of our people and longstanding track record of supporting the UK’s biggest and most complex infrastructure projects.

Our teams have been working closely with Align and its supply chain partners for over a year, and we’ll continue to put collaboration at the heart of successful delivery as we move forward on this significant and exciting contract. 

Building HS2

Find out more about what it takes to deliver the UK's largest infrastructure programme. Watch panel discussions on meeting supply, logistics and people challenges. See the manufacture capability build progress. 

HS2 Facing the challenges


HS2 Raising the bar


HS2 Latest progress


Evolving concrete

Tarmac will provide specialist concrete to meet the requirements of rail infrastructure and on-demand technical site expertise. Our nationwide rail freight network will transport aggregates for concrete production to local railheads and materials will be widely used for a variety of construction applications on the project. 

With sustainability a key focus we are working closely with Align to ensure that the designs are optimised to deliver sustainable and life-long performance. 

Align project director Daniel Altier said:
“The working relationship we have established with Tarmac over the past 18 months has been very collaborative, and we have been very impressed with the approach to this complex project and evolving environment.  

The contract is one of our biggest supply chain awards and we are delighted that we will be working alongside Tarmac over the years ahead to deliver what will be a key iconic element of HS2.” 

Infrastructure projects of this scale demonstrate our ambition as a business: we invested our time and utilised business experts to develop our best possible capability for concrete supply and design. This expertise is what enabled us to provide assurance that we have the capability and capacity to deliver to the required level. 

Learn more about our capabilities

Proud to play our part in building our future.