But for the past ten years, construction has been going on to get the 16-mile super sewer ready to carry human waste and rainwater in the new Thames Tideway Tunnel. Most of us rarely think about ...

(to Darren) Hello. Nice helmet. Thanks very much. Darren is project manager of the Tideway, a major infrastructure development for the Thames, which will help free the river of dirty discharges.

For next month’s race, however, the main focus will be on whether the Thames Tideway Tunnel super sewer is already taking effect. After 10 years of construction work, the last of the 21 ...