El Dorado Forebay Dam Modifications

Pollock Pines, CA

The El Dorado Forebay Dam Modification Project (Project) was designed to bring the near century-old facility up to current dam safety standards. The El Dorado Forebay Dam and Reservoir (Forebay), constructed in 1923, is a key part of the El Dorado Hydroelectric Project 184. Forebay is an off-stream reservoir that regulates water for drinking water and hydroelectric power purposes. The primary improvements involve construction of an earthen stability buttress on the downstream face that both strengthen the dam and increase its water storage capacity.