Studio Octopi proposes building pools at two of the Super Sewer construction sites; Shadwell in the east of the city and Blackfriars Bridge in central London.
"Imagine the views from the waterline, downstream to the London Eye, upstream to the City," said Romer-Lee of the Blackfriars location. "Whether it’s for sport or leisure, bringing these alternative uses to the heart of cities unites diverse communities, encourages physical activity and invigorates the flora and fauna of our much overlooked river."
Romer-Lee pointed out that the concept doesn't rely on the Super Sewer, but does require the UK government to take steps to improve the current sewage system and water quality in The Thames, which currently falls below European standards.
The architects worked with structural engineering specialist Civic Engineers to develop the design, which includes a pair of pools supported by a concrete slab and raised to the height of the high water mark on a series of steel columns. The pools would be replenished with fresh river water at high tides.
A further pool made from concrete waffle slabs anchored to fixed posts would float on the surface of the river, rising and falling with the tide while protecting swimmers from the tidal currents.