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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