San Bruno, California major shopping centers, Bayhill (located on the old U.S. Navy property between San Bruno Avenue and Sneath Lane) and Tanforan. With final approval by the San Bruno City Council, construction proceeded on these major retail developments. Prior to these developments, most of the city's retail businesses were located on San Mateo Avenue and El Camino Real. San Bruno is one of two cities in the Bay Area that manages its own cable TV and internet system. The October 17, 1989, Loma Prieta earthquake (6.9 magnitude) caused some damage in the city. The U.S. Postal Service's Western Regional headquarters, then the
1989 Loma Prieta earthquake removed and replaced the collapsed section, and re-opened the bridge on November 18. The worst disaster of the earthquake was the collapse of the two-level Cypress Street Viaduct of Interstate 880 in West Oakland. The failure of a section of the viaduct, also known as the "Cypress Structure" and the "Cypress Freeway", killed 42 and injured many more. Built in the late 1950s, the Cypress Street Viaduct, a stretch of Interstate 880, was a double-deck freeway section made of nonductile reinforced concrete that was constructed above and astride Cypress Street in Oakland. Roughly half of the land the Cypress Viaduct