Thames Water has awarded Barhale the contract to complete the final leg of the £17M Greenwich Trunk Main scheme, securing water supply and improving network resilience for South-east London.

Civil engineering, infrastructure and tunnelling specialist Barhale will deliver Phase Three of the 4km programme by installing the final 1km of pipeline from the Blackwall Lane roundabout to the O2 arena.

It follows the completion of Phase One (2.7km, Greenwich Park – Blackwall Lane roundabout) and Phase Two (80m across the new Silvertown Tunnel).

The Greenwich Trunk Main scheme connects to an existing 800mm diameter water main at Croon’s Hill. It crosses Greenwich Park and then continues to the Peninsula.

Phase One was the largest construction project undertaken in the park since the 2012 London Olympics. The driver for this project is the need to increase water network capacity within the Greenwich Peninsula area, which is experiencing significant developer growth.

Phase one will be commissioned by the end of 2026 and phases two and three in May 2027.

Steve Collett, contracts manager at Barhale, said: “We are pleased to have worked alongside Thames Water throughout the Greenwich project. New infrastructure, such as the Silvertown Tunnel and the Elizabeth Line, is encouraging housing and commercial development in this part of London. The new water main is an important upgrade to the network’s capacity which will ensure it is able to meet future demands.”

The project is expected to complete in July 2027.