Osceola Wastewater Treatment Plant Headworks Building & Lift Station

Osceola Wastewater Treatment Plant Headworks Building & Lift Station

Osceola, IA
Story Construction was contracted to deliver major infrastructure improvements for the new City of Osceola Wastewater Treatment Plant, a key component of the community’s long-term strategy to replace its aging facility and support future growth. As part of a multi-contract, roughly $45 million effort, Story Construction was awarded the third of six contracts in August 2020 and began work on the plant.
20/MGD
Veenstra & Kimm, Inc.
2022

The scope of work included construction of the new headworks building, influent pump station, and overflow screw pump station. The influent pump station required extensive earthwork, including a 30-foot deep excavation supported by a sheet-piling cofferdam, and the use of a 40,000-pound crane for key equipment placement. The overflow station features two 6-foot diameter screw pumps capable of handling more than 10,000 gallons per minute (15 million gallons per day) when influent flow exceeds the plant’s processing capacity.

Story Construction crews self-performed cast-in-place concrete, buried piping, process piping, and installation of process equipment, demonstrating the firm’s commitment to quality and hands-on project execution. Throughout the project, crews managed site challenges including poor soil conditions and high groundwater associated with proximity to a floodplain.

City staff and project partners praised the Story team for their attention to detail, proactive communication, and ability to adapt to supply chain challenges, contributing to a well-coordinated construction effort.

Story Construction crews overseeing the placement of a gravel rock base.