Chiloquin Dam Removal MPID Pumping Plant and Fish Screen

Improving the spawning habitat for endangered short-nosed and Lost River sucker fish drove the Chiloquin Dam removal project. This project was constructed in two phases. The first phase was construction, startup, and commissioning of an intake structure with seven fish screens, a pumping plant with two 200 HP pumps, and 1,500’ of 42” piping. Phase two consisted of removing the 190-foot long by 11-foot tall dam structure and was completed 69 days ahead of schedule.

Components of the work included: diversion and care of water, removing Chilquin Dam and appurtenant structures, constructing a steel sheet pile cofferdam, excavation and including fish screens, adjustable baffles, stop logs and guides, trash racks, gratings, and steel piping, equipment including 200 HP vertical turbine pumps, valves, and HVAC special construction including metal building system, water level measuring devices, air burst system, electrical systems including grounding, MCC’s, conduit and conductors, and controls.

Many agencies were involved in the project, including the Bureau of Reclamation, Bureau of Indian Affairs, Modoc Point Irrigation District, US Fish and Wildlife Service, Oregon Department of Fish and Wildlife, Oregon Water Resources Department, the Klamath Tribes, and the Klamath Water Users Association.

Total Project Value: $9.4 million

Slayden Construction Role: RFP selected General Contractor

Owner: US Bureau of Reclamation

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"We have been impressed with their management skills, starting with preconstruction where they performed value engineering that reduced costs, lead procurement with detailed bid packages that brought our project qualified subcontractors and manufacturers and produced a schedule that would get our project completed on time. Slayden has continued this into the construction phase by managing the work to stay on schedule."

Randy Rosane, P.E., Project Manager with Water Environmental Services

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"Slayden’s positive approach and eagerness to achieve the project goals was a tremendous benefit and a driving force to the project and its success. Slayden achieved all minority, woman, and emerging small business subcontracting goals and also met the 20% Workforce Training and Hiring Program’s apprenticeship requirements. They also held their subcontractors to these same goals and requirements."

Michelle Lostra, P.E., City of Portland, Water Bureau

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Katy Fulton, Lake Oswego – Tigard Water Partnership

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"I enjoyed their management style, which was efficient while paying attention to cost. This was done without sacrificing safety. I would welcome the chance to work with them in the future."

Daniel G Shepard, Manager, Grants Pass Irrigation District

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"Slayden has met all conditions of approval and does a great job of keeping the neighborhood informed. Slayden works diligently to accommodate the neighboring citizens. In several cases, Slayden has gone above and beyond the conditions of approval in an effort to solve citizen’s issues. This has led to the development of relationships between the project team and the neighborhood, which have contributed to the project in a positive manner."

Thomas Lebo, Construction Manager, Brown and Caldwell

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William Schmittle, City of Hermiston