Ambitious London "super sewer" finally complete after decade of construction

Good news! What goes on beneath! 

"... The super sewer has a length of 25 km (15.5 miles). Its main tunnel is 7.2 m in diameter (23.7 ft), the equivalent of three London double decker buses, while its connection tunnels are either 5 m (16.4 ft) in diameter or 2 m (6.6 ft) in diameter. It has a capacity of 1.6 million cubic m (roughly 56.5 million cubic ft), which is a whole lot of sewage.

Construction on the project began in earnest in 2016 at 24 sites around London. Over 20 deep shafts – some as wide as the dome of St Paul's Cathedral – were constructed across the city. Six tunneling machines were used in all ..."

Ambitious "super sewer" finally complete after decade of construction "A decade after it was first revealed, London's "super sewer" is now finally complete. The £5 billion (US$6.3 billion) project is expected to revolutionize the handling of human waste in the British capital."

The Tunnel