Slayden served as the CM/GC for the City of Sandy Wastewater Treatment Plant Improvements project, which was completed to address urgent Oregon DEQ requirements, increase treatment capacity, and improve reliability following a comprehensive condition assessment.
During preconstruction, Slayden worked closely with the City, design team, and regulators to evaluate constructability, cost, schedule, long-lead procurement, and phased GMP delivery. The team sequenced early work around seasonal flows and continuous plant operations, allowing the City to meet aggressive compliance deadlines while maintaining treatment throughout construction.
Construction was completed through three GMP phases and an Early Work Amendment. Major improvements included main electrical upgrades, blower and aeration basin improvements, RAS/WAS system modifications, WAS pumping upgrades, equalization basin aeration, expanded chemical storage and metering, UV system upgrades, and expansion of the tertiary disk filtration system.
Slayden earned First Place in the 2025 AGC Construction Safety Excellence Awards (CSEA) in the Utility Infrastructure Category — Under 500,000 Work Hours.
Read More
Slayden Constructors and Jacobs Engineering recently completed a $78 million expansion of the Robert A. Duff Water Treatment Plant for the Medford Water Commission. The project boosts capacity from 45 to 65 million gallons per day and adds advanced filtration, a new reservoir, a modern pump station, and seismic‑resilient redundancies. This upgrade strengthens long‑term water reliability for Medford and the greater Rogue Valley, supporting regional growth and public health.
Read More
Slayden’s Jeff Wall recently achieved a unique milestone. At the Pacific Northwest Clean Water Association (PNCWA) conference in Spokane, Washington, Jeff became the first contractor to be chosen under the PNCWA to join the Select Society of Sanitary Sludge Shovelers, also known as the 5S society. Members are selected based on “outstanding, meritorious service above and beyond the call of duty.” As recognition for this achievement, Jeff received a one-of-a-kind -5S gold shovel award.
Read More