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  1. Golden Gate National Parks Conservancy - Wikipedia

    en.wikipedia.org › wiki › Golden_Gate_National_Parks

    The Parks Conservancy works closely with several partners including the National Park Service (NPS) and the Presidio Trust to accomplish its mission to preserve the Golden Gate National Parks, enhance the experience of park visitors, and build a community dedicated to conserving the parks for the future.

    • 14,000
    • Fort Mason, Building 201, San Francisco, CA 94123
  2. Golden Gate National Parks Conservancy 201 Fort Mason | San Francisco, CA 94123 Phone: (415) 561-3000 | Fax: (415) 561-3003 The Parks Conservancy is a registered 501(c)(3) nonprofit under EIN 94-2781708. Donations are tax-deductible to the fullest extent allowable under the law.

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  4. Golden Gate Highlands National Park - Wikipedia

    en.wikipedia.org › wiki › Golden_Gate_Highlands

    Golden Gate Highlands National Park is located in Free State, South Africa, near the Lesotho border.It covers an area of 340 km 2 (130 sq mi). The park's most notable features are its golden, ochre, and orange-hued, deeply eroded sandstone cliffs and outcrops, especially the Brandwag rock.

  5. Golden Gate National Recreation Area - Wikipedia

    en.wikipedia.org › wiki › Golden_Gate_National

    Golden Gate National Parks Conservancy, a non-profit membership organization The Golden Gate Raptor Observatory , a non-profit focusing on raptor research and conservation in the GGNRA The Marine Mammal Center , the largest rescue and rehabilitation center for marine mammals in the world, based in the Marin Headlands

  6. Facebook cover images and wallpapers | Golden Gate National ...

    www.parksconservancy.org › facebook-cover-images

    Facebook cover images and wallpapers. Imagery from our professional photographers to share with your friends or just use as everyday inspiration. Share the beauty and wonder of the Golden Gate National Parks with our free Facebook Timeline cover images and wallpapers! Click the images below to download the high-resolution images.

  7. History of the Parks Conservancy | Golden Gate National Parks ...

    www.parksconservancy.org › about › history-parks

    Parks Conservancy established, first called the Golden Gate National Parks Association. 1982. Began operation of interpretive sales areas at park visitor centers to raise funds for park projects and programs. 1983. Launched Black Point Battery restoration, the first major project of its kind for the Conservancy. 1985.

  8. About Us | Golden Gate National Parks Conservancy

    www.parksconservancy.org › about

    The Golden Gate National Parks Conservancy is the nonprofit membership organization created to preserve the Golden Gate National Parks, enhance the experiences of park visitors, and build a community dedicated to conserving the parks for the future. Learn More.

  9. Conservation | Golden Gate National Parks Conservancy

    www.parksconservancy.org › conservation

    Golden Gate National Parks Conservancy 201 Fort Mason | San Francisco, CA 94123 Phone: (415) 561-3000 | Fax: (415) 561-3003 The Parks Conservancy is a registered 501(c)(3) nonprofit under EIN 94-2781708. Donations are tax-deductible to the fullest extent allowable under the law.

  10. Golden Gate Bridge - Wikipedia

    en.wikipedia.org › wiki › Golden_Gate_Bridge
    • History
    • Structural Specifications
    • Aesthetics
    • Traffic
    • Issues
    • See Also
    • Further Reading
    • External Links

    Ferry service

    Before the bridge was built, the only practical short route between San Francisco and what is now Marin County was by boat across a section of San Francisco Bay. A ferry service began as early as 1820, with a regularly scheduled service beginning in the 1840s for the purpose of transporting water to San Francisco. The Sausalito Land and Ferry Company service, launched in 1867, eventually became the Golden Gate Ferry Company, a Southern Pacific Railroad subsidiary, the largest ferry operation...

    Conception

    Although the idea of a bridge spanning the Golden Gate was not new, the proposal that eventually took hold was made in a 1916 San Francisco Bulletin article by former engineering student James Wilkins. San Francisco's City Engineer estimated the cost at $100 million (equivalent to $2.4 billion today), and impractical for the time. He asked bridge engineers whether it could be built for less. One who responded, Joseph Strauss, was an ambitious engineer and poet who had, for his graduate thesis...

    Design

    Strauss was the chief engineer in charge of the overall design and construction of the bridge project. However, because he had little understanding or experience with cable-suspension designs, responsibility for much of the engineering and architecture fell on other experts. Strauss's initial design proposal (two double cantilever spans linked by a central suspension segment) was unacceptable from a visual standpoint. The final graceful suspension design was conceived and championed by Leon M...

    Until 1964, the Golden Gate Bridge had the longest suspension bridge main span in the world, at 4,200 feet (1,300 m). Since 1964 its main span length has been surpassed by seventeen bridges; it now has the second-longest main span in the Americas, after the Verrazzano-Narrows Bridge in New York City. The total length of the Golden Gate Bridge from abutmentto abutment is 8,981 feet (2,737 m). The Golden Gate Bridge's clearance above high water averages 220 feet (67 m) while its towers, at 746 feet (227 m) above the water, were the world's tallest on a suspension bridge until 1993 when it was surpassed by the Mezcala Bridge, in Mexico. The weight of the roadway is hung from 250 pairs of vertical suspender ropes, which are attached to two main cables. The main cables pass over the two main towers and are fixed in concrete at each end. Each cable is made of 27,572 strands of wire. The total length of galvanized steel wire used to fabricate both main cables is estimated to be 80,000 mile...

    Aesthetics was the foremost reason why the first design of Joseph Strauss was rejected. Upon re-submission of his bridge construction plan, he added details, such as lighting, to outline the bridge's cables and towers. In 1999, it was ranked fifth on the List of America's Favorite Architecture by the American Institute of Architects. The color of the bridge is officially an orange vermilion called international orange. The color was selected by consulting architect Irving Morrowbecause it complements the natural surroundings and enhances the bridge's visibility in fog. The bridge was originally painted with red lead primer and a lead-based topcoat, which was touched up as required. In the mid-1960s, a program was started to improve corrosion protection by stripping the original paint and repainting the bridge with zinc silicate primer and vinyl topcoats. Since 1990, acrylic topcoats have been used instead for air-quality reasons. The program was completed in 1995 and it is now maint...

    Most maps and signage mark the bridge as part of the concurrency between U.S. Route 101 and California State Route 1. Although part of the National Highway System, the bridge is not officially part of California's Highway System. For example, under the California Streets and Highways Code § 401, Route 101 ends at "the approach to the Golden Gate Bridge" and then resumes at "a point in Marin County opposite San Francisco". The Golden Gate Bridge, Highway and Transportation District has jurisdiction over the segment of highway that crosses the bridge instead of the California Department of Transportation(Caltrans). The movable median barrier between the lanes is movedseveral times daily to conform to traffic patterns. On weekday mornings, traffic flows mostly southbound into the city, so four of the six lanes run southbound. Conversely, on weekday afternoons, four lanes run northbound. During off-peak periods and weekends, traffic is split with three lanes in each direction. From 1968...

    Suicides

    The Golden Gate Bridge is the most used suicide site in the world. The deck is about 245 feet (75 m) above the water. After a fall of four seconds, jumpers hit the water at around 75 mph (120 km/h; 30 m/s). Most die from impact trauma. About 5% survive the initial impact but generally drown or die of hypothermiain the cold water. After years of debate and an estimated more than 1,500 deaths, suicide barriers, consisting of a stainless steel net extending 20 feet from the bridge and supported...

    Wind

    The Golden Gate Bridge was designed to safely withstand winds of up to 68 mph (109 km/h). Until 2008, the bridge was closed because of weather conditions only three times: on December 1, 1951, because of gusts of 69 mph (111 km/h); on December 23, 1982, because of winds of 70 mph (113 km/h); and on December 3, 1983, because of wind gusts of 75 mph (121 km/h). An anemometerplaced midway between the two towers on the west side of the bridge, has been used to measure wind speeds. Another anemome...

    Seismic vulnerability and improvements

    Modern knowledge of the effect of earthquakes on structures led to a program to retrofit the Golden Gate to better resist seismic events. The proximity of the bridge to the San Andreas Fault places it at risk for a significant earthquake. Once thought to have been able to withstand any magnitude of foreseeable earthquake, the bridge was actually vulnerable to complete structural failure (i.e., collapse) triggered by the failure of supports on the 320-foot (98 m) arch over Fort Point. A $392 m...

    Cassady, Stephen (1979). Spanning the Gate (Commemorative edition, 1987 ed.). Squarebooks. ISBN 978-0916290368.
    Dyble, Louise Nelson; the Golden Gate Bridge (2009). Paying the Toll: Local Power, Regional Politics. University of Pennsylvania Press. ISBN 9780812222784.
    Friend, Tad (October 13, 2003). "Jumpers: The fatal grandeur of the Golden Gate Bridge". The New Yorker. 79 (30). p. 48. Archived from the originalon November 8, 2006.
    Guthman, Edward; an easy route to death have long made the Golden Gate Bridge a magnet for suicides (October 30, 2005). "Lethal Beauty / The Allure: Beauty". San Francisco Chronicle.
    Historic American Engineering Record (HAER) No. CA-31, "Golden Gate Bridge", 41 photos, 6 color transparencies, 2 data pages, 4 photo caption pages
    Links for Golden Gate Bridge at Curlie
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