City readies bypass pumping and pipe to repair suspected failure in 48‑inch Claver Creek sewer; cost estimate ~ $500,000
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Summary
Fayetteville staff told the committee they suspect a failure in a 48‑inch trunk sewer near Claver Creek and have ordered replacement PVC pipe, secured DEQ permits and are arranging bypass pumping; a targeted repair could cost about $500,000.
City operations staff briefed the committee that inspections indicate a probable issue in a 48‑inch trunk sewer running in the Claver/Clabereo Creek corridor between Greg Avenue and the Hamstring Lift Station.
Aaron Watkins said the pipeline is a large‑diameter fiberglass/fiber‑reinforced line that can deform and is brittle; the city has previously repaired other sections of this pipeline and replaced a segment under the interstate in a multi‑million‑dollar repair. "We ordered the replacement pipe — I'm guessing the pipe comes in 14‑foot sections, so we ordered, like, 308 feet," Watkins said, adding the replacement PVC inventory cost was about $100,000.
Staff said they have DEQ permits in place for in‑stream work, are meeting with potential pumping contractors to scope bypass pumping and have tentatively discussed contractor assistance with Crossland. Watkins said a full dig‑and‑replace would require a bypass pumping system of substantial capacity and could cost in the order of $500,000 inclusive of pumps, mobilization and construction, though exact costs depend on how much excavation is required and ground conditions.
The city plans to mobilize for a televising and inspection effort after bypass pumps are set; if the inspection shows a localized failure, crews will proceed to excavate and replace the affected segment. Staff said they are targeting drier weather for the work to reduce the risk of pump capacity being overwhelmed by stormwater and groundwater.
Why it matters: the 48‑inch trunk sewer is a critical conveyance toward the Hamstring Lift Station; a failure could require complex bypassing and deep excavation, with material and mobilization costs and potential service impacts. Staff said they are preparing parts and contractors to minimize downtime if excavation is required.
Provenance: Topic intro — staff presentation, 01:32:43 (block_5563). Topic finish — discussion of schedule and costs, 01:40:00 (block_5931.215).
