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Columbia, West Columbia officials outline trenchless cleaning plan for 42-inch sewer under Riverwalk
Summary
City of Columbia and consultant Black & Veatch told West Columbia council they will clean and inspect about 5,400–5,500 feet of 42-inch sewer beneath the Saluda Riverwalk using trenchless methods, with local work staged in a roughly three-month window and an EPA consent-decree deadline cited for 03/18/2032.
City of Columbia staff and consulting engineers briefed the West Columbia City Council on a planned trenchless cleaning and inspection of a 42-inch gravity sewer that runs roughly between the Jarvis Clapman bridge and the Blossom Street bridge along the Saluda Riverwalk.
John Riggs, deputy director of major capital projects for the City of Columbia and interim utility director, told council the line dates to a contract set about 51 years ago and that the segment targeted is about 5,400–5,500 feet long. “We identified the area of 42-inch pipe about 5,500 feet…that had some debris, some solids build up in the bottom that really…
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