Slayden is delivering a new regional wastewater collection, treatment, and disposal system serving the Mill City and Gates communities through the North Santiam Canyon Sewer Project. As the CM/GC, Slayden led preconstruction services including estimating, constructability reviews, value engineering, procurement planning, scheduling, risk management, and Guaranteed Maximum Price (GMP) development. Early Work Amendments enabled critical site work and long-lead equipment procurement to begin before final design and permitting were complete, helping maintain schedule certainty.
The project includes construction of a new Water Pollution Control Facility featuring a two-train sequencing batch reactor (SBR) process, raw sewage and influent lift stations, septage receiving, headworks, equalization, tertiary denitrification filtration, new process building with laboratory, UV disinfection, chemical feed systems, solids storage and dewatering, odor control systems, six rapid infiltration basins, extensive site utilities, construction of a new roadway, and demolition of the existing treatment facility. Once complete, the project will replace an aging facility that no longer meets state requirements, improve water quality in the Santiam River watershed, support long-term community growth, and help protect drinking water sources for downstream communities including Stayton, Sublimity, Turner, and Salem.
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