PILARCITOS LK NR HILLSBOROUGH CA

RESERVOIR LEVELS
February 10, 2025


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Pilarcitos, also known as Pilarcitos Lake, is a vital water resource located in Half Moon Bay, California. Owned by the local government, this dam on Pilarcitos Creek was completed in 1866 and serves the primary purpose of water supply. With a height of 103 feet and a hydraulic height of 95.8 feet, Pilarcitos Dam has a storage capacity of 3100 acre-feet and covers a surface area of 109 acres.

Managed by the Department of Water Resources and regulated by the Safety of Dams agency, Pilarcitos Dam is considered to have a high hazard potential but is currently rated as being in satisfactory condition. The last inspection in December 2020 confirmed its structural integrity, and regular inspections are conducted to ensure the safety of the surrounding community. While the dam meets state permitting and enforcement standards, there is no information available on emergency action plans or risk assessment measures for this crucial water source.

Water resource and climate enthusiasts will be intrigued by the historical significance and technical specifications of Pilarcitos Dam. Its location in San Mateo County, California, and its association with Pilarcitos Creek make it a key component of the region's water infrastructure. As a critical water supply source, the dam's condition and regulatory oversight are essential factors in ensuring reliable water access for the surrounding area. Further exploration into the emergency preparedness and risk management aspects of Pilarcitos Dam could provide valuable insights into water resource resilience in the face of climate challenges.

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change -0.16%
Percent of Normal 100%
Minimum 675.75 ft
2021-10-20
Maximum 697.06 ft
2017-01-11
Average 690 ft
Dam_Height 103
Hydraulic_Height 95.8
Drainage_Area 3.8
Year_Completed 1866
Nid_Storage 3100
River_Or_Stream Pilarcitos Crk
Primary_Dam_Type Earth
Surface_Area 109
Dam_Length 520
Hazard_Potential High
Nid_Height 103
Reservoir Levels
       

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