How will the Thames Tunnel be built?
Watch Thames Water's video below to find out about the construction of the super sewer.
More top news
Plaque unveiled in memory of London jazz musician.
A plaque was unveiled in Southwark this afternoon in memory of one of Britain's earliest black jazz musicians, Frank Bates.
Lucrezia's programme blog
A family's call for answers, the Met Police's Commander faces 'Plebgate' pressure and the last day of the Premier League.
Saturday forecast
The south is enjoying the best of today's weather, mostly dry with some bright spells.