COLUMBIA — The Columbia City Council voted unanimously Monday to extend the Hinkson Creek sewer outfall by constructing 29,000 feet of extra sewage line.
The project is estimated to cost $8.1 million, and Public Works Director John Glascock said the funds for the project were provided in the 2008 bond issue.
First Ward Councilman Paul Sturtz questioned sanitary sewer overflows, which occur when manholes erupt with sewage because of excess flow. Glascock said that the project "won't remedy those" but that the city had two other projects to address the issue of sewage overflows.
Columbia had 120 sewage overflows during fiscal 2010.
Ken Midkiff, conservation chairman of the Osage Group of the Sierra Club, said he was "somewhat relieved" the project would use boring rather than open excavation.
At the meeting, Midkiff said Environmental Services Manager Steve Hunt assured him no connections would be made to the new sewer line until the city addressed the problem of sanitary sewer overflows.
He also stated the Sierra Club's request that there be no construction of the new sewer line until the city addressed those problems.
Glascock said the new sewer would carry "some environmental impact."
"There always is (environmental impact) when we're dealing with a creek," he said. "It'll be less if we bore."