Keltbray, a leading UK specialist engineering business, today announces it has secured the contract to provide key environmental solutions on the Silvertown Tunnel, on behalf of Transport for London (TfL) and Riverlinx CJV (Ferrovial Construction, BAM Nuttall & SK Ecoplant).

Works will include the transportation of excavated material via barges capable of carrying up to 1800 tonnes. One barge uses 35% less carbon when compared with traditional transportation methods.

The Silvertown Tunnel involves the construction of a twin-bore road tunnel providing a new connection between the A102 Blackwall Tunnel Approach on Greenwich Peninsula, and the Tidal Basin Roundabout junction on the A1020 Lower Lea Crossing/Silvertown Way. Construction is now well underway with the launch chamber for the Tunnel Boring Machine (TBM) now being excavated ahead of the arrival of the TBM in Spring 2022.

The scope of key environmental services Keltbray will provide include:

  • All labour, plant, equipment, facilities, materials, services, supervision and any resource necessary to carry out and complete the analysis and classification testing
  • Provide barges capable of carrying up to 1800 tonnes to receive excavated material from the work sites and take to restoration sites for recovery
  • Stockpile management including treatment and/or mixing of material
  • Transportation, off-loading and disposal of all construction waste

Keltbray is unique in that it can accept many projects in London via the River Thames, exploiting the use of barges and offering clients a more sustainable alternative to congested London roadways. The business has the expertise and knowledge to manage heavily contaminated soils if found by utilising its professional in-house chemists and experienced staff.

After applying treatment procedures to construction materials which may involve either mechanical or physio-chemical processes, the material is subsequently used to benefit restoration sites along the River Thames.

Keltbray set the target of implementing the waste hierarchy by achieving 90% (or greater) reuse or recycling of construction and demolition waste, and 95% (or greater) reuse or recycling of clean excavated material.

Cliff Burton, Managing Director, Environmental Services at Keltbray commented: “Keltbray is pleased to have secured this major package of environmental works with the Riverlinx CJV to deliver on the Silvertown Tunnel, our environmental solutions will ensure significant carbon reductions on the project. Many construction projects have set a target to reduce the carbon footprint of construction – not only do we offer shorter road journeys but we are fully committed to using the River Thames as a transportation highway by using 1000 tonne barges from Thames Wharf, which offers considerable carbon savings.”

Juan Jose Bregel, Project Director at Riverlinx CJV (Ferrovial Construction, BAM Nuttall & SK Ecoplant), said: “Riverlinx CJV has adopted best construction practice to manage our sites, construction waste, transportation, and the materials we use through the project.

The Silvertown Tunnel Project is an impressive tunnelling scheme, with innovative solutions for challenges and complexities faced working under the Thames and in a busy urban environment, delivering the works safely and sustainably.”


Media Enquiries

Nina Fairfowl, Corporate Communications Manager and Group Inclusion Manager

Keltbray Holdings Limited

Tel: 07395 792301

Email: [email protected]


Philip Pashley

Group Director, Corporate Communications

Keltbray Holdings Limited

Tel: 07860 954620

Email: [email protected]


Notes for Editors

About Keltbray

Keltbray is a leading multi-disciplinary engineering and construction services business, offering a uniquely integrated delivery capability spanning key phases of the client value chain.

Keltbray provides certainty of outcome for prestigious public and private sector clients often in highly regulated markets like rail and energy, contributing to the development and maintenance of Britain’s rapidly changing economic and social infrastructure.

Our professionally accredited teams of engineering and construction professionals take pride in delivering safely and sustainably to enhance, upgrade and decarbonise our clients’ capital assets.