Sweetwater Dam, Gravity dam in San Diego County, United States.
The Sweetwater Dam rises 108 feet high across the Sweetwater River, creating a 960-acre reservoir with a storage capacity of 28,079 acre-feet of water.
Engineers completed the construction of this concrete structure in 1888, marking a significant advancement in California's water management infrastructure during the late nineteenth century.
The dam stands as a testament to regional development, recognized as a Historic Civil Engineering Landmark that reflects the evolution of water resource management in California.
Seven gated spillways regulate water flow rates exceeding 45,000 cubic feet per second, while an intake tower controls water release from different reservoir depths.
During the 1916 flood, the dam's abutments failed while the main structure remained intact, leading to major modifications in its spillway design.
Location: San Diego County
Inception: November 1886
Official opening: 1888
GPS coordinates: 32.69140,-117.00800
Latest update: March 5, 2025 14:03
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