On Thursday this week Colin Murphy, Senior Engineer on “our” section of the Tideway Project gave 50 Society members and friends a fascinating talk about the scheme. As well as an excellent overview of why Thames Water need to spend some £4.2bn on digging a very deep 25km tunnel under London we had a detailed update on the goings on in Wandsworth. The treatment of King George’s Park (see picture), where a number of mature trees had to be felled was particularly interesting and left us quite optimistic about the outcome.