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Westlake Reservoir, located in Thousand Oaks, California, is a vital water resource managed by a public utility.
The reservoir, completed in 1972, serves the primary purpose of supplying water for irrigation and domestic use in the region. With a height of 158 feet and a storage capacity of 9200 acre-feet, Westlake Reservoir plays a crucial role in meeting the water demands of the community.
Managed by the California state regulatory agency, the Safety of Dams division ensures that Westlake Reservoir meets all safety and inspection requirements. The dam, classified as an Earth type, has a high hazard potential but is currently deemed to be in satisfactory condition. Regular inspections and maintenance activities help to mitigate any potential risks and ensure the continued reliability of the reservoir for water supply purposes.
Westlake Reservoir, situated on Tree Springs Creek, not only provides essential water storage capabilities but also contributes to the overall water management strategy in Los Angeles County. With its strategic location and significant storage capacity, the reservoir serves as a critical component in the regional water supply infrastructure, supporting agricultural, industrial, and residential water needs.
Year Completed |
1972 |
Dam Length |
1400 |
Dam Height |
158 |
River Or Stream |
Tree Springs Cr |
Primary Dam Type |
Earth |
Surface Area |
156 |
Hydraulic Height |
150 |
Drainage Area |
0.9 |
Nid Storage |
9200 |
Hazard Potential |
High |
Nid Height |
158 |
| Location | Reservations | Toilets |
|---|---|---|
Camp Summertime
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Circle X Ranch Campground
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Decker Canyon City Camp (closed)
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Circle X Group
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Group Campground
|
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Camp Bloomfield
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Headwaters In The Santa Monica Mountains To Mouth At Pacific Ocean
Lower Piru Creek (Oulet At Pyramid Reservoir) To Piru Reservoir
Site Of St Francis Dam Disaster To Seco Canyon At The Nf Boundary
Section Line To Confluence With Rock Creek
Castaic To Pyramid Reservoir
Chorro Grande Canyon To Section Line Dividing Sec 1, T5N, R23W And Sec 6, T5N, T22W