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Osage Beach staff outlines sewer overhaul options after force‑main failure revealed
Summary
Public Works Director Jeff Fisher told the Board of Aldermen that inspections uncovered severe deterioration in a 24‑inch force main and other pipes; staff proposed stepped fixes (aerators, charcoal filters, targeted repairs) and a preliminary engineering program that could narrow a previous $46 million planning estimate to nearer $30–35 million depending on design and phased lining or replacement.
Jeff Fisher, the city’s public works director, told the Board of Aldermen on April 16 that a year‑long evaluation of Osage Beach’s sewer system identified substantial deterioration in large force mains and a set of operational conditions that help explain recurring sewer odors.
Fisher said crews located a major leak near a Lowe’s store that exposed a 24‑inch interceptor with extensive corrosion and an opening “big enough that I could fit in.” He described video inspections of multiple lines and said the system’s pressure‑based design, slow movement through the mains and high hydrogen sulfide levels have accelerated damage in hilly sections of the city’s piping network.
The finding prompted a list of immediate and medium‑term steps staff have already taken or planned: targeted repairs to compromised sections; deployment and expansion of bio‑augmentation (“bugs”) at several locations; installation of additional aerators and charcoal filters; and micro‑repairs where inspection allows. Fisher said Sands lift station and its pumps may need replacement, and that engineering modeling will be required to decide whether to reline long runs or replace segments of the 24‑inch main.
Fisher said the city filed State Revolving Fund applications by the March 1 deadline to establish a place in the funding queue but that those applications included assumptions the new inspections may change. “Preliminary engineering and modeling will tell us whether we need two lines to the treatment plant, whether the 24-inch must be entirely replaced, or whether lining plus selective replacement will work,” Fisher said. He added that with further design work the previous $46 million planning estimate might be reduced toward $30–35 million.
Fisher recommended the council approve preliminary design work and a master plan scope and fee that staff expect to present at the May 7 meeting. He said the work will also include a rate study (targeted for draft results by August) so elected officials can weigh financing options, including a potential voter bond, the state revolving fund, and use of the city’s capital improvement sales tax.
During follow‑up questions, aldermen asked for an expedited timeline to feed the city’s strategic planning and budget process. Fisher said staff would aim to deliver rate‑study results in time for summer budget planning and reiterated that no formal financing decisions were requested that night.
The presentation and the accompanying video footage prompted public recognition of the complexity of the system and unanimous direction from the board to pursue preliminary engineering and further public briefings before any bond or rate action.
