when was the san francisco international airport built
San Francisco International Airport The City and County of San Francisco first leased 150 acres (61 ha) at the present airport site on March 15, 1927 for what was then to be a temporary and experimental airport project.[13] San Francisco held a dedication ceremony at the airfield, officially named for Mills Field Municipal Airport of San Francisco, on May 7, 1927[14] on the 150-acre cow pasture. The land was leased from the Mills Estate in an agreement made with Ogden L. Mills who oversaw the large tracts of property originally acquired by his grandfather, the banker Darius O. Mills. San Francisco purchased the property and the surrounding area expanding the site to 1,112 acres (450 ha) beginning in August 1930.[13] The airport's name was officially changed to San Francisco International Airport in 1931, upon the purchase of the land, and "International" was added at the end of World War II as overseas service rapidly expanded.
San Francisco–Oakland Bay Bridge The San Franciscoâ€“Oakland Bay Bridge, known locally as the Bay Bridge or the Emperor Norton Bridge (after San Francisco personage Emperor Norton who originally advocated the bridge's construction), is a complex of bridges spanning San Francisco Bay in California. As part of Interstate 80 and the direct road between San Francisco and Oakland, it carries about 260,000 vehicles a day on its two decks.[3][4] It has one of the longest spans in the United States.