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  2. 1971 San Fernando earthquake - Wikipedia

    en.wikipedia.org/wiki/1971_San_Fernando_earthquake

    The Los Angeles Department of Water and Power, as well as the County of Los Angeles, investigated and verified that local soil conditions contributed to the ground displacement and resulting destruction. The area of surface breaks on the ground at the site was 900 ft (270 m) (at its widest) and stretched 4,000 ft (1,200 m) down a 1% grade slope ...

  3. Wurlitzer Building (California) - Wikipedia

    en.wikipedia.org/wiki/Wurlitzer_Building...

    Wurlitzer Building is made of reinforced concrete and brick with a multi-colored terra cotta facade and features a Spanish Renaissance design with decorative cornice, arched windows, and bas relief. The Wurlitzer name is carved into the building, with the names Mozart and Verdi carved in medallions beneath it. [1] [2] [3]

  4. United Concrete Pipe Corporation - Wikipedia

    en.wikipedia.org/wiki/United_Concrete_Pipe...

    United Concrete Pipe Corporation headquarters was at 85th St. and Vermont Ave., Los Angeles, California. One Works Progress Administration project was the Wawona Tunnel built in 1933. [2] In 1937 United Concrete Pipe completed a Works Progress Administration project the Mad River Water Supply Project in Eureka, California.

  5. Seismic retrofit - Wikipedia

    en.wikipedia.org/wiki/Seismic_retrofit

    Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes.With better understanding of seismic demand on structures and with recent experiences with large earthquakes near urban centers, the need of seismic retrofitting is well acknowledged.

  6. 1994 Northridge earthquake - Wikipedia

    en.wikipedia.org/wiki/1994_Northridge_earthquake

    The 1994 Northridge earthquake affected the Los Angeles area of California on January 17, 1994, at 04:30:55 PST. The epicenter of the moment magnitude 6.7 ( M w ) blind thrust earthquake was beneath the San Fernando Valley . [ 3 ]

  7. Reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete

    The first reinforced concrete building in Southern California was the Laughlin Annex in downtown Los Angeles, constructed in 1905. [16] [17] In 1906, 16 building permits were reportedly issued for reinforced concrete buildings in the City of Los Angeles, including the Temple Auditorium and 8-story Hayward Hotel. [18] [19]

  8. American Concrete Institute - Wikipedia

    en.wikipedia.org/wiki/American_Concrete_Institute

    The American Concrete Institute (ACI, formerly National Association of Cement Users or NACU) is a non-profit technical society and standards developing organization. ACI was founded in January 1905 during a convention in Indianapolis. [1] [2] The Institute's headquarters are currently located in Farmington Hills, Michigan, USA. ACI's mission is ...

  9. Julia Morgan - Wikipedia

    en.wikipedia.org/wiki/Julia_Morgan

    In April 1904, Julia Morgan completed her first reinforced concrete structure, El Campanil, [23] the 72-foot bell tower at Mills College, which is located across the bay from San Francisco. Two years later, El Campanil survived the 1906 San Francisco earthquake unscathed, which helped build her reputation and launch her career. [ 24 ]