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Sunbury Shows Construction Progress on Wastewater Plant Aerobic Digesters; Walls to Rise About 18 Feet
Summary
City staff showed council photos and measurements of the new aerobic digesters at the wastewater treatment plant: a footprint about 60 by 90 feet, 24‑inch concrete walls and wall tops about 18 feet high; the 100‑year flood elevation is roughly 7 feet below the top of wall, and safety railings will be added.
City staff on Aug. 6 updated the Sunbury City Council on construction progress at the city’s wastewater treatment plant, where two new aerobic digesters are being built.
Carla Odabrowski, service‑department staff, presented 60% design plans for JR Smith Park improvements and construction photos for multiple active projects, and she described the digester installation at the treatment plant. Odabrowski said the digester pit footprint is approximately 60 by 90 feet and that the concrete walls surrounding the two digesters are 24 inches thick.
Odabrowski told council members the top of the exterior wall will be about 18 feet above the pit with the surrounding ground level about 15 feet, leaving roughly 3 feet of wall above grade. She said the 100‑year flood elevation is about 4 feet lower than the ground elevation, which places the flood elevation roughly 7 feet below the top of the walls. The project will include safety railings around the top of the walls, Odabrowski said.
City staff noted the work is substantial and recommended that council members visit the active construction site only by arrangement because it remains an active work zone. Odabrowski also discussed other infrastructure projects in progress, including Walnut Street stabilization and planned street‑improvement designs for 2026.
No permits, environmental approvals or final construction timelines beyond the design and bidding phases were specified at the meeting. Council discussion focused on project scale and safety measures rather than on changes to scope or budget.
