Travelers are voting Pacoima Dam, Sherwood Dam and Whittier Narrows Dam as the best of 6 dams near Santa Monica. There are 4 dams near Seal Beach City a city just 30 km from Santa Monica and 9 dams near Duarte which is 30 km distant. The most popular of these are Whittier Narrows Dam near Seal Beach City and Morris Reservoir in Duarte. You can find 38 dams in California and 138 dams in the country of United States. Our members favorite in California is Morris Reservoir and Hoover Dam is the top pick in United States. Want more? Check out our map of dams near Santa Monica.