Alternative Delivery

Cabinet Gorge Dam Fish Passage Facility

Project Stats Owner: Avista Corporation Value: $27M Method: CM/GC Location: Clark Fork, ID This project was the result of several years of value engineering and preconstruction services that provided feasibility for construction of a new trap-and-haul fish passage in the tailrace of the dam. The facility is designed primarily for the Bull Trout species, which…

Geren Island Water Treatment Plant Ozone Upgrades

Project Stats Owner: City of Salem Value: $49M Method: CM/GC Location: Salem, OR The City of Salem has been operating the Geren Island Water Treatment Plant since 1937. Presently, the plant has the capacity to treat up to 80 MGD utilizing biologically active slow sand filtration. However, in the early summer of 2018, the City…

Lebanon Water Treatment Plant

Project Stats Owner: City of Lebanon Value: $28M Method: CM/GC Location: Lebanon, OR Slayden replaced the aging Water Treatment Plant (WTP) for the City of Lebanon, Oregon. This replacement includes the construction of a new intake on the South Santiam River; a new raw water pump station; a new water treatment plant; and raw water…

Sunriver WWTP Membranes

Project Stats Owner: Northwest Natural Value: $16M Method: CM/GC Location: Sunriver, OR This new mebrane bioreactor (MBR) treatment facility and new headworks was needed to meet more stringent discharge permit requirements to achieve class A recycled water standards. Through the use of extensive value engineering, we were able to meet the budget constraints for this…

Post Falls Landing Park

Project Stats Owner: Avista Corporation Value: $3M Method: PDB Location: Post Falls, ID This project created Post Falls Landing, a new multi-functional recreation space along the Spokane River, across from the Post Falls North Channel Dam. This project was a joint effort between the City of Post Falls and Avista, the local electric and gas…

Joint Water Commission Water Treatment Plant Expansion

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…

Spokane River Side Park Water Reclamation Facility

Slayden and MWH Constructors worked with the City of Spokane to achieve major upgrades to their Riverside Park Water Reclamation Facility. The upgrade included a Next Level of Treatment (NLT) – a new membrane filtration system that significantly improved the quality of effluent released into the Spokane River. The primary reason for the NLT was…

Willow Lake WPCP Headworks and Primary Treatment Improvements

Slayden was selected as the CM/GC on this $92 MM Headworks and Pumping Plant Project for the City of Salem. This fast track project included construction of new headworks, influent and primary pump station, bar screen facility, two electrical buildings, two new primary clarifiers, effluent analyzer building, and an effluent diversion structure. Specific work components…

Scott Water Treatment Plant Expansion

Slayden was selected, through the RFP process, as the CM/GC on this $27 MM water treatment plant upgrade and expansion for McMinnville Water & Light. This fast track CM/GC project involved pre-construction services beginning at 80% design. Slayden provided constructability reviews and value engineering estimates to help bring the project within the budget set by…