seasonal, fluctuating up to annually, these facilities are located for accessibility. Environmental impact Before the New Waddell Dam was constructed, two phases of a three-phase study were carried out to determine the effects of the dam on fisheries. Completed in 2005, the third phase of the study determined that the larger reservoir has less nutrient concentrations due to CAP water introduction and that water fluctuations have reduced fish cover, likely affecting food and spawning. Large mouth bass populations have also declined but striped bass have entered the lake, likely by eggs transferred through CAP water. Around the lake, Reclamation has taken steps to protect wildlife habitats, including those for bald eagles and Gila topminnows. References External links New Waddell Dam at the U.S. Bureau of Reclamation (Old Waddell Dam) Dams in Arizona Dams in the Colorado River basin Earth-filled dams Buildings and structures in Maricopa County, Arizona Dams completed in 1994 Energy infrastructure completed in 1994 Hydroelectric power plants in Arizona Pumped-storage hydroelectric power stations in the United States United States Bureau of Reclamation dams Historic American Engineering Record in Arizona 1994 establishments in Arizona