Oregon City reports progress on inflow-and-infiltration work; several high‑priority sewer projects underway

Jun 17, 2026

City engineering staff reported completed I&I work that reduced flows by up to 35% in priority basins, 213 manholes rehabilitated, multiple projects under construction and design, and plans for challenging projects requiring geologic-hazard permits.

The full story

City engineering staff and consultants delivered the annual inflow-and-infiltration (I&I) program update on June 17, reporting measurable reductions in sewer system flows and a pipeline of remediation projects.

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