Alternative Delivery

Tri-City Water Pollution Control Plant Phase 1

The Tri-City Phase 1 Expansion includes, but is not limited to, an intermediate pumping station, fine screening, aeration basin, blower building, membrane building, ultraviolet (UV) disinfection system, chemical system, galleries, and ancillary systems to expand the designated activated sludge treatment plant by 4.0 million gallons per day (MGD) average day flow/10.0 MGD peak hour flow…

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Juniper Ridge Hydroelectric Project

The Juniper Ridge Hydroelectric project is a $22 MM EPC (Engineer, Procure, Construct) project. The engineering and construction team includes Slayden Construction Group, Sunrise Engineering, and Burke Electric. The project consists of 2.5 miles of 108″ steel penstock pipe placed within and beneath the existing irrigation canal system. The penstock entrance consists of a rock…

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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…

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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…

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Mt. Tabor / Washington Park Interim Security and Deferred Maintenance Project

This CM/GC project for the City of Portland enhanced security and implemented water delivery improvements on the turn-of-the-century historical reservoirs. Work included extensive attention to environmental surroundings, preservation of historically designated work components, 2000+ feet of new sewer mains that included diversion of flow with new manholes and inlet installation, 5000+ feet of 24”-54” steel…

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OR 38: Elk Creek to Hardscrabble Creek

This $47 MM design build multi-discipline highway project consisted of the design and replacement of five bridges over environmentally sensitive waterways in multiple work zones along OR 38. The project also included upgrades to the OR 38/OR 138 intersection. The project stretched over a 14-mile section of OR 38 between the cities of Drain and…

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Willamette River Water Treatment Plant

The Willamette River Water Treatment Plant consisted of an overall $43 million project that was constructed by a team that included Montgomery Watson HARZA, the Design Engineer and overall Prime Contractor, with Slayden Construction as the General Contractor for the water treatment plant construction, access roadways, and bridges. The project was fast-tracked, using an overall…

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I-5: Elkhead Road to OR 126: Knowles Creek Bridges

This $43 million design-build highway project consisted of the design and replacement of six bridges along with the repair of one other. The bridges span across live railroad tracks, county roads, and environmentally sensitive water ways in multiple work zones along the I-5 corridor and along Highway 126. As the design-builder, Slayden Construction was responsible…

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Row River Water Treatment Plant

This project was a design-build contract for the City of Cottage Grove. The existing system was located at two sites that were more than twenty miles apart with a capacity of approximately two MGD. Our team converted the existing Row River site to a pall membrane system capable of uninterrupted deliveries of four MGD with…

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Corona Del Mar Water Treatment Plant

This $22.7 million design-build project for MWH Constructors and Goleta Water District in Goleta, California, increased the existing plant capacity to 24 MGD. The Corona Del Mar WTP is the only source of water for the Goleta Water District which serves the residents of Goleta, California. This contract involved extensive modifications within the boundaries of…

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