The Thames Tideway Tunnel, to give it its official but less-fun name, is 25km long, stretching from Acton through the city to Abbey Mills (near Stratford) where it connects with the Lee Tunnel.

Full connection of the 25 kilometre-long sewer tunnel should help prevent 95 per cent of sewage spills into the Thames The Thames Tideway was fully connected to the capital's wider sewage network ...

After 10 years of construction work, the last of the 21 connections of the Thames Tideway Tunnel was made to the city's Victorian sewage system. The 16-mile (25km) pipe will divert 34 of the most ...