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San Diego Bay

San Diego Bay
SDBayAreaNASA.jpg
San Diego Bay from Space
Location San Diego County, California
Coordinates 32°39′N 117°11′W / 32.65°N 117.19°W / 32.65; -117.19Coordinates: 32°39′N 117°11′W / 32.65°N 117.19°W / 32.65; -117.19
River sources Otay and Sweetwater Rivers; Paradise Creek
Ocean/sea sources Pacific
Basin countries United States
Max. length 12 miles (19 km)
Max. width 3 miles (5 km)
Surface area 19 square miles (49 km2);
12,000 acres
Average depth 21.33 feet (6.50 m)
Max. depth 60 feet (18 m) (dredged)
Settlements San Diego, Coronado,
Chula Vista, Imperial Beach, National City
References

San Diego Bay is a natural harbor and deepwater port located in San Diego County, California near the U.S.–Mexico border. The bay, which is 12 miles (19 km) long and 1 to 3 miles (1.6 to 4.8 km) wide, is the third largest of the three large, protected natural bays on California's entire 840 miles (1,350 km) long coastline after San Francisco Bay and Humboldt Bay. The highly urbanized land adjacent to the bay includes the city of San Diego (eighth largest city in the United States) and four other cities, including National City, Chula Vista, Imperial Beach and Coronado.

Considered to be one of the best natural harbors on the west coast of North America, it was colonized by Spain beginning in 1769. Later it served as base headquarters of major ships of the United States Navy in the Pacific until just before the United States entered World War II, when the newly organized United States Pacific Fleet primary base was transferred to Pearl Harbor, Hawaii. However, San Diego Bay remains as a home port of major assets, including several aircraft carriers, of the United States Pacific Fleet, and as a result of base closures beginning in the 1980s, facilities in San Diego Bay are the only remaining major naval base facilities still in operation in the entire State of California.

San Diego Bay's commercial port has two container ship facilities (one for refrigerated containers) and a cruise ship terminal. A second cruise ship terminal opened in December 2010. The port handles more than 3 million metric tons of cargo yearly. The cruise ship terminal hosted more than 250 ship calls a year totaling more than 800,000 passengers at its peak in 2008; since then the number of ship calls has fallen to fewer than 100 per year due to the withdrawal of regular service by major cruise lines.


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