El Capitan Dam
Reservoir Levels • Weather • Hydrology
El Capitan Dam, located in San Diego County, California, was built in the 1930s as a hydroelectric facility. It is a concrete gravity dam that stands at 237 feet tall and 1,600 feet long. The dam serves as a surface water storage facility that can hold up to 112,800 acre-feet of water. The hydrology surrounding the dam is primarily fed by the San Diego River, which is reliant on snowpack melt from surrounding mountains. The dam provides water to the San Diego County Water Authority, which serves over 3.3 million residents. Additionally, the water is used for recreational purposes such as fishing, boating, and camping. The surrounding agricultural community also benefits from the water supply provided by the dam.
May 20, 2024
°F
°F
mph
Windspeed
%
Humidity
| Storage 24hr Change | -0.27% |
| Percent of Normal | 102% |
| Minimum |
24,853 acre-ft
2022-11-01 |
| Maximum |
59,525 acre-ft
2023-04-05 |
| Average | 39,179 acre-ft |
| Dam_Height | 237 |
| Hydraulic_Height | 217 |
| Drainage_Area | 190 |
| Year_Completed | 1934 |
| Nid_Storage | 112800 |
| River_Or_Stream | San Diego River |
| Primary_Dam_Type | Earth |
| Surface_Area | 1562 |
| Hazard_Potential | High |
| Dam_Length | 1170 |
| Nid_Height | 237 |
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