Notes:
Notes:
After the completion of the Old Don Pedro Dam in 1923, the powerhouse was capable of producing up to 15 megawatts of power. It was the first hydroelectric powerhouse in the nation to use a two circuit, 66,000 volt, aluminum power line. The capacity of the each generator was upgraded to 30 megawatts in 1926. New Don Pedro Dam was completed in May of 1971, and the new powerhouse could generate up to 165 megawatts of electricity by utilizing three "Francis" type hydroelectric turbine generators. A fourth generator was added in 1989 that enabled the powerhouse to generate up to 203 megawatts of electricity." "So, on June 25, 1921 the construction of the Dam would began, and in 1923 it would be finished. The dam would be constructed to a height of 284 feet, making it the tallest dam in the world in 1923. The end result would be a reservoir, that would provide water storage, flood control, and power production for the MID [Modesto Irrigation District] and TID [Turlock Irrigation District]."