This Water Treatment Plant project is to replace the existing aged WTP located in Lebanon, Oregon. This replacement will include construction of a new intake on the South Santiam River; a new raw water pump station; new water treatment plant; and raw water transmission, sewer, and storm water pipelines. The new facility will have a…

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The Joint Water Commission is expanding their current water treatment plant located in Forest Grove, Oregon. JWC is the primary drinking water supplier in Washington County, Oregon and is responsible for treating, transmitting, and storing portable water for over 350,000 customers. The purpose of this expansion is to accommodate growing communities in Washington County. The…

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This PDX airport improvement project consisted of providing utility services and vacuum sanitary sewer plumbing systems to support various concessions and retail development in the PDX terminal building. The work included installation of over 7,000 feet Stainless Steel Vacuum lines, 6,800 feet welded steel natural gas lines, 5,000 feet cast iron, 3,500 feet copper water…

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Slayden and MWH Constructors are working with the City of Spokane on major upgrades to their Riverside Park Water Reclamation Facility. This upgrade will include Next Level of Treatment which is a new filtration system that will greatly improve the quality of effluent that is released into the Spokane River. The major reason for the…

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This I-5: Willamette River Bridge is located in Eugene/Springfield, Oregon, and is contracted under Construction Manager/General Contractor (CM/GC) method. Slayden was partnered with Hamilton Construction Company as the Construction Manager (CM). The project consisted of replacing the decommissioned bridge over the Willamette River and removing the detour bridge that was commissioned in 2004. The new…

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The purpose of this Waste Water Treatment Plant improvements project was to double the treatment capacity from 2.24 million gallons per day to 4.48 million gallons per day. The expansion includes a second influent pump station, a second oxidation ditch, flow distribution structure, second ultra violet disinfection system and a new structure to house the…

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The San Luis Demonstration Treatment Plant, located in Firebaugh Ca. is a Water Treatment Plant for the US Department of Interior; Bureau of Reclamation. The scope involved constructing a pilot project to demonstrate the effectiveness of treating ground water to remove heavy metals and contaminants. The water treatment plant has pressure filters, membrane filtration, reverse…

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This completed project provides for a new “greenfield” headworks facility to serve the resort. The new facility has a peak hydraulic capacity of 1 million gallons per day (MGD) with room for additional equipment to provide screening redundancy in the future to enable the plant to be upgraded with membrane bioreactor (MBR) treatment. Work on…

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The Clovis Surface Water Treatment Plant project is located in Clovis, California. The reason for this project was to expand the capacity of the plant to 22.5 MGD. This included, but not limited to, site work, demolition of the existing concrete pads as well as a portion of the existing Pall membrane units. This project…

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The goal of this project was to remove a priority persistent pollutant found in its effluent and improve water quality for residents. This unique project integrated a new 6 MGD membrane filtration system into the existing 2 MGD plant. This project also included upgrades to existing headwork’s structure including new screens, and a new fine…

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