Combined sewer
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A combined sewer is a type of gravity sewer with a system of pipes, tunnels, pump stations etc. to transport sewage and urban runoff together to a sewage treatment plant or disposal site. This means t
Interior of a combined sewer in Brighton, England.
Combined sewer outflow into the Anacostia River in Washington, D.C.
A medieval waste pipe in Stockholm Old Town formerly deposited sewage on the street to be flushed away by rain.
Sewage canal of a medieval house as depicted in 1447 St. Barbara Altarpiece in the National Museum in Warsaw.
Thames Tideway Tunnel
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The Thames Tideway Tunnel is a deep-level sewer along the tidal section of the River Thames in London, running 25 kilometres from Acton in the west to Abbey Mills in the east, where it joins the Lee T
Combined sewer
…St. Joseph, and Maumee Rivers. The 3RPORT is approximately 160 feet (49 m) below grade, and is anticipated to enter service in 2023. In March 2024 the Thames Tideway Tunnel was completed in London at a cost of around £5bn, with it reaching full operation in early 2025. The tunnel promises to reduce CSO spills by up to 95…
Thames Tideway construction site, Putney, 2021