Pacoima Dam, Concrete arch dam in San Gabriel Mountains, USA.
The Pacoima Dam stretches 640 feet across Pacoima Creek, rising 365 feet high with a base thickness of 100 feet in Los Angeles County.
Completed in 1928 by the Los Angeles County Flood Control District, the Pacoima Dam stood as the highest arch dam in the United States at that time.
The structure represents an engineering milestone in California water management, connecting multiple generations of Los Angeles County residents to their water resources.
The reservoir formed by the dam maintains a storage capacity of 3,777 acre-feet, providing water supply and flood control for the San Fernando Valley region.
The United States Geological Survey monitors the dam continuously through GPS technology since 1995, following its endurance through major earthquakes.
Location: Los Angeles County
GPS coordinates: 34.33470,-118.39600
Latest update: March 6, 2025 21:41
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