Lake Eleanor , also known as Banning Dam, is an 8-acre freshwater lake near Westlake Village in Thousand Oaks, California. The lake lies within the 513-acre Lake Eleanor Open Space and was Ventura County Historic Landmark No. 120 in 1988. It is also designated City of Thousand Oaks Historical Landmark No. 9. Currently under ownership of Conejo Open Space Conservation Agency , the lake sits in a gorge with sheer cliffs and drops of 40-50 ft. An artificial lake, it was first constructed in 1889, and may be the first concrete arched dam built in California.
Although not a major dam, Banning Dam is among the oldest still standing in the state. Nearby Sherwood Dam dates from 1904. It is less than 1 mile east of Lake Sherwood. The structure is located within the Lake Eleanor Open Space. At 37 feet high, and 140 feet long at its crest, the dam is owned by the local Conejo Open Space Conservation Agency.
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Address: Ventura, United States
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