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Slayden Constructors, in partnership with Jacobs Engineering, recently completed construction of the Robert A. Duff Water Treatment Plant expansion for the Medford Water Commission. The $78 million project is a major infrastructure upgrade that will provide long-term benefits to Medford and the greater Rogue Valley.
The expansion increased the plant’s treatment capacity from 45 MGD to 65 MGD, ensuring the system can keep pace with the region’s growth. The project also introduced advanced filtration systems, a new reservoir, and a modern pump station. Built-in redundancies and seismic resiliency features were incorporated to strengthen reliability, even in the event of natural disasters.
This project represents a significant investment in the Rogue Valley’s future, safeguarding public health and supporting continued development in southern Oregon. Slayden is proud to have partnered with Jacobs Engineering to deliver this critical upgrade and appreciates the trust of the Medford Water Commission in bringing the project to completion.
The Bull Run Filtration Facility in Gresham, Oregon has earned the Envision Platinum Award, the highest honor from the Institute for Sustainable Infrastructure, recognizing its exceptional commitment to sustainability, environmental protection, and long‑term community benefit. As a major investment in the region’s drinking water system, the project will improve water quality, enhance reliability, and protect the Bull Run Watershed for future generations. The award highlights strong collaboration among the Portland Water Bureau, design teams, construction partners—including the MWH‑Kiewit joint venture—and community stakeholders, as well as leadership in climate resilience, resource efficiency, and workforce equity.
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This digital thread ensures that design engineers, construction teams, operations staff, and City leadership all work from the same validated foundation of information. In an environment as utility-dense as a 50-year-old wastewater treatment plant, this visibility is essential.
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In January, MWH officially launched its Women in Construction chapter—an exciting milestone for the company and a meaningful step forward for representation across our jobsites, offices, and leadership teams. The launch reflects a growing commitment to elevating the voices and experiences of women who contribute to every part of our work.
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