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Forebay Dam Project Nears Milestone

Post Date:09/28/2018 7:15 AM

News Release Mast

Contact: Jesse Saich, (530) 642-4127, jsaich@eid.org
FOR IMMEDIATE RELEASE

Placerville, Calif. — The Forebay Dam Modification Project, after years of planning and a year of work, is nearing a milestone: the completion of phase two in the three-phase construction project.

The 94-year-old facility is a key part of EID’s federally licensed El Dorado Hydroelectric Project 184 and a vital component in the district’s drinking water system.

During summer 2018, significant work on constructing the foundation for the new earthen stability buttress was undertaken and now, the reservoir is being drawn down to enable access for work that will be done on the reservoir side of the dam.

Once the reservoir is dewatered, work can begin to repair the unstable reservoir inlet as well as to install water control gates at the power and water supply intake structures.

To access these areas, the reservoir’s water must be removed. The water is being sent to our nearby water treatment plant for consumption, as well as through EID’s hydropower plant to generate electricity.

During the latter portions of the dewatering process, some water is anticipated to be naturally cloudy, or turbid.

The inlet and outlet modifications will be completed by December and the reservoir will be refilled for normal operational conditions in mid-December.

During this phase of the project, trees that are located within the new normal operating level of the enlarged reservoir will also be removed.

The final project phase is scheduled for 2019, including the final placement of soil for the buttress and raising the dam by 10 feet.

To learn more about the Forebay Project, visit our dedicated webpages that give the project's background and history and updates and documents.

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EID is a public agency dedicated to providing high quality water, wastewater treatment, recycled water, hydropower, and recreation services in an environmentally and fiscally responsible manner.

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