San Diego Aqueduct
San Diego Aqueduct | |
|---|---|
| Coordinates | 33°18′N 117°06′W / 33.3°N 117.1°W |
| Begins | First Aqueduct Colorado River Aqueduct 33°49′19″N 116°58′03″W / 33.821870°N 116.967520°W Second Aqueduct Casa Loma Canal Aqueduct 33°47′27″N 117°01′50″W / 33.790740°N 117.030487°W |
| Ends | First Aqueduct San Vicente Reservoir 32°55′13″N 116°56′26″W / 32.920401°N 116.940687°W Second Aqueduct Lower Otay Reservoir 32°36′28″N 116°55′40″W / 32.607857°N 116.927769°W |
| Official name | San Diego Project |
| Maintained by | San Diego County Water Authority |
| Characteristics | |
| Total length | 225.1 mi (362.3 km) |
| Capacity | First Aqueduct 196 cu ft/s (5.6 m3/s) Second Aqueduct canal: 500 cu ft (14 m3) pipeline 3: 250 cu ft (7.1 m3) pipeline 4: 380 cu ft (11 m3) |
| History | |
| Construction start | First Aqueduct pipeline 1: 1945 pipeline 2: 1952 Second Aqueduct pipeline 3: 1957 pipeline 4: 1968 |
| Opened | First Aqueduct pipeline 1: 1947 pipeline 2: 1954 Second Aqueduct pipeline 3: 1960 pipeline 4: 1971 |
| Location | |
The San Diego Aqueduct is a system of four aqueducts in the U.S. state of California, supplying about 70 percent of the water supply for the city of San Diego. The system comprises the First and Second San Diego Aqueducts, carrying water from the Colorado River west to reservoirs on the outskirts of San Diego. The 70-mile (110 km) First Aqueduct consists of pipelines 1 and 2, which run from the Colorado River Aqueduct near San Jacinto, California, to San Vicente Reservoir, approximately 15 miles (24 km) northeast of the city. Pipelines 3 and 4 make up the 94-mile (151 km) Second Aqueduct. Together, these four pipelines have a capacity of 826 cubic feet per second (23.4 m3/s). The smaller, 12.5-mile (20.1 km) Fallbrook-Ocean Branch branches from the First Aqueduct into Murray Reservoir. The La Mesa-Sweetwater Branch originates from the First Aqueduct, flowing into Sweetwater Reservoir.