Legal & General's investment - Thames Tideway Tunnel - Completes major construction milestone

The Thames Tideway Tunnel is core strategic UK infrastructure, and will form an integral part of future proofing London’s Victorian sewer system and will stretch from Acton in the West to Abbey Mills in the east and will have a diameter of c.7.2m and a depth ranging between 30m to 66m underground. The Thames Tideway Tunnel will extend the existing sewer, stopping millions of tonnes of sewage from polluting the Thames. World class construction contractors are delivering infrastructure that – once built – will require limited operational and maintenance during the 120 year design life.

This construction update, as announced by Tideway, marks five years since the project was given the green light and completion of the first and most unpredictable phase of the project. The Tideway workforce, which stands at 2,000, have achieved complex engineering feats in the initial phase of the project including the completion of seven new pieces of land in the Thames, including at Chelsea, Blackfriars and Putney, and digging five giant shafts up to 50m below London’s street level. Construction is taking place at 23 sites across the city and Tideway is using the river instead of roads as far as possible to build the project, cutting the impact on road congestion and air quality.