The five billion Pound Super Sewer

London’s Victorian sewer network is at bursting point, and now a huge engineering project is underway to massively expand the capital’s capacity to deal with its own waste.

In a major new three-part series, The Five Billion Pound Super Sewer puts cameras at the heart of the action, following workers across the capital for the past three years as they race to build the enormous tunnel on time and on budget.