Florence, S.C. unveils $300-million plan to reduce sewer overflows, upgrade aging infrastructure

(UI) — City officials in Florence, S.C. are advancing a long-term, $300-million infrastructure plan aimed at reducing recurring sewer overflows and modernizing aging water and wastewater systems. 

According to WPDE News, the 20-year program includes dozens of projects targeting system capacity constraints, particularly in areas that have experienced repeated overflows and odor complaints. City leaders said the plan prioritizes improvements that address upstream bottlenecks without creating downstream impacts.

A key early project focuses on a $50-million upgrade to the Jeffries Creek interceptor. The work will involve replacing existing pipelines ranging from 8 to 54 inches in diameter to improve flow capacity and reliability. Construction is expected to be completed by late 2028, WPDE reported.

Additional upgrades will include upsizing existing sewer lines and installing a new regional lift station designed to reduce strain on the interceptor system by redirecting flows directly to the wastewater treatment plant.

Beyond wastewater improvements, the city is also planning upgrades to its drinking water system. Officials cited aging infrastructure and elevated iron levels as contributing factors to discolored water reported by residents. Planned work includes treatment system enhancements, improved iron removal processes and upgrades to groundwater wells.

City officials said portions of the program are already underway, including early-phase bids for overflow mitigation work. Funding is expected to come from a mix of state and federal sources, along with local investment.

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