Revision as of 18:51, 23 March 2010 view sourceBlanchardb (talk | contribs)Extended confirmed users, Pending changes reviewers, Rollbackers87,668 editsm Reverted edits by 72.248.210.23 to last revision by Philip Trueman (HG)← Previous edit | Latest revision as of 20:21, 28 December 2024 view source Epicgenius (talk | contribs)Autopatrolled, Extended confirmed users, Page movers, File movers, IP block exemptions, Mass message senders, New page reviewers, Pending changes reviewers, Rollbackers329,971 edits reword lead | ||
Line 1: | Line 1: | ||
{{Short description|Bridge in the San Francisco Bay Area}} | |||
{{protection padlock|small=yes}} | |||
{{Use mdy dates|date=March 2024}} | |||
{{Infobox bridge | {{Infobox bridge | ||
| |
| image = Golden Gate Bridge as seen from Battery East.jpg | ||
| image_size = | |||
|image= GoldenGateBridge-001.jpg | |||
| caption = View from the ], 2017 | |||
|caption= | |||
|official_name= | | official_name = Golden Gate Bridge | ||
| carries = {{Bulleted list | |||
|carries= 6 lanes of {{jct|state=CA|US|101|CA|1}}, pedestrians and bicycles | |||
| 6 lanes of {{jct|state=CA|US|101|CA|1}} {{Crossreference|selfref=no|(see ])}} | |||
|crosses= ] | |||
| Bicycle route: {{jct|state=CA|USBR|95}} | |||
|locale= ], ] and ] | |||
| Eastern walkway: pedestrians or bicycles during selected hours {{Crossreference|selfref=no|(see ])}} | |||
|maint= ]<ref></ref> | |||
| Western walkway: bicycles (only when pedestrians are allowed on the eastern sidewalk) | |||
|design= ], ] & ] | |||
}} | |||
|mainspan= {{convert|4200|ft|m|0}}<ref name="Denton"/> | |||
| crosses = ] | |||
|length= 1.71 miles {{convert|8981|ft|m|0}}<ref name=structurae>{{Structurae|id=s0000029|title=Golden Gate Bridge}}</ref> | |||
| locale = ], ] and ], California, U.S. | |||
|width= {{convert|90|ft|m|0}} | |||
| maint = ]<ref>{{cite web|title=About Us|url=https://goldengate.org/organization/|website=goldengate.org|publisher=Golden Gate Bridge, Highway and Transportation District|access-date=November 27, 2017|language=en}}</ref> | |||
|height= {{convert|746|ft|m|0}} | |||
| website = {{URL|goldengate.org/bridge}} | |||
|clearance= {{convert|14|ft|m|1}} at toll gates, higher truck loads possible | |||
| engineering = ], ], ] | |||
|below= {{convert|220|ft|m|0}} at ] | |||
| architect = ] | |||
|traffic= 118,000<ref name=calrpt2006> http://www.dot.ca.gov/hq/traffops/saferesr/trafdata/truck2006final.pdf Annual Average Daily Truck Traffic on the California State Highway System, 2006, p.169</ref> | |||
| builder = ] | |||
|open= May 27, 1937 | |||
| design = ], ], ] & ] | |||
|closed= | |||
| mainspan = 4200 ft,<ref name="Denton"/> about {{convert|0.79|mi|km|2|abbr=on}} | |||
|toll= ]6.00 (southbound) (]5.00 with ]) | |||
| length = 8980 ft,<ref name=structurae>{{Structurae|id=20000029|title=Golden Gate Bridge}}</ref> about {{convert|1.70|mi|km|2|abbr=on}} | |||
|map_cue=Connects: | |||
| width = {{convert|90|ft|m|1|abbr=on}} | |||
|map_image = San_Francisco_Bay_Bridges_map_en.svg | |||
| height = {{convert|746|ft|m|1|abbr=on}} | |||
|map_text=] with ] | |||
| clearance = {{convert|14|ft|m|1|abbr=on}} at toll gates | |||
|map_width= 180px | |||
| below = {{convert|220|ft|m|1|abbr=on}} at high ] | |||
|coordinates= {{Coord|37|49|11|N|122|28|43|W|region:US-CA_type:landmark|display=inline,title}} | |||
| traffic = 88,716 (FY2020)<!--32470000/366--><ref name="dailycrossings">{{cite web |url=https://www.goldengate.org/bridge/history-research/statistics-data/annual-vehicle-crossings-toll-revenues/ |title=Annual Vehicle Crossings and Toll Revenues |publisher=Golden Gate Bridge, Highway and Transportation District |access-date=January 5, 2023}}</ref> | |||
|extra={{Location map | USA California | |||
| |
| material = Steel | ||
| begin = {{start date text|January 5, 1933}} | |||
|label_size = | |||
| complete = {{end date text|April 19, 1937}} | |||
|alt = | |||
| open = {{start date and age|1937|May|27 | |||
|position = right | |||
| mf = yes}} | |||
|background = | |||
| closed = | |||
|lon_dir=W | |||
| toll = {{Plainlist| | |||
|lat_dir=N | |||
* Southbound only | |||
|lat_deg = 37 | |||
* ] or ], cash not accepted | |||
|lat_min = 49 | |||
* Effective {{Start and end dates|2024|07|01|2025|06|30}}: | |||
|lat_sec = 11 | |||
* $9.25 (FasTrak users) | |||
|lon_deg = 122 | |||
* $9.50 (Pay-by-plate users) | |||
|lon_min = 28 | |||
* $7.25 (carpools during peak hours, FasTrak only) | |||
|lon_sec = 43 | |||
}} | |||
|lat = | |||
| coordinates = {{coord|37|49|11|N|122|28|43|W | |||
|long = | |||
| |
| display = inline,title}} | ||
| extra = {{Designation list | |||
|marksize = | |||
| |
| embed = yes | ||
| |
| designation1 = California | ||
| designation1_number = 974 | |||
|width = 250 | |||
| designation1_date = June 18, 1987<ref name=CHL>{{cite ohp|974|Golden Gate Bridge|2012-10-08}}</ref> | |||
|caption = <!-- blank --> | |||
| designation2 = San Francisco | |||
| designation2_number = 222 | |||
| designation2_date = May 21, 1999<ref name=SFLandmark>{{cite web | title = City of San Francisco Designated Landmarks | publisher = City of San Francisco | url = https://www.sf-planning.org/Modules/ShowDocument.aspx?documentid=5081 | access-date = October 21, 2012 | archive-url = https://web.archive.org/web/20140325040805/https://sf-planning.org/Modules/ShowDocument.aspx?documentid=5081 | archive-date = March 25, 2014 }}</ref> | |||
}} | |||
}} | }} | ||
}} | |||
The '''Golden Gate Bridge''' is a ] ] spanning the ], the |
The '''Golden Gate Bridge''' is a ] spanning the ], the {{convert|1|mi|km|adj=mid|-wide|spell=in}} ] connecting ] and the ] in ], United States. The structure links ]—the northern tip of the ]—to ], carrying both ] and ] across the strait. It also carries pedestrian and bicycle traffic, and is designated as part of ]. Recognized by the ] as one of the ],<ref>{{cite web |url=https://www.asce.org/Content.aspx?id=2147487305 |title=American Society of Civil Engineers Seven Wonders |publisher=Asce.org |date=July 19, 2010 |access-date=August 30, 2010 |archive-url=https://web.archive.org/web/20100802060056/https://www.asce.org/Content.aspx?id=2147487305 |archive-date=August 2, 2010}}</ref> the bridge is one of the most internationally recognized symbols of San Francisco and California. | ||
The Golden Gate Bridge was the ] in the world when it was completed during the year 1937, and has become an internationally recognized symbol of San Francisco and ]. Since its completion, the span length has been surpassed by eight other bridges. It still has the second longest suspension bridge main span in the United States, after the ] in ]. In 1999, it was ranked fifth on the '']'' by the ]. | |||
The idea of a fixed link between San Francisco and Marin had gained increasing popularity during the late 19th century, but it was not until the early 20th century that such a link became feasible. ] served as chief engineer for the project, with ], ] and ] making significant contributions to its design. The bridge opened to the public on May 27, 1937,<ref>{{Cite web|url=https://www.goldengate.org/bridge/history-research/moments-events/key-dates/|title=Key Dates - Moments & Events | Golden Gate|website=www.goldengate.org}}</ref> and has undergone various retrofits and other improvement projects in the decades since. | |||
The Golden Gate Bridge is described in ] travel guide as "possibly the most beautiful, certainly the most photographed, bridge in the world."<ref name="Frommers">{{cite book|last1=Levine|first1=Dan|title=Frommer's comprehensive travel guide, California '93|date=1993|publisher=Prentice Hall Travel|location=New York|isbn=0-671-84674-4|page=118}}</ref><ref name="Frommers2">{{cite book|last1=McGrath|first1=Nancy|title=Frommer's 1985-86 guide to San Francisco|date=1985|publisher=Frommer/Pasmantier Pub.|location=New York|isbn=0-671-52654-5|page=10}}</ref> At the time of its opening in 1937, it was both the ] and the ] suspension bridge in the world, titles it held until ] and ] respectively. Its main span is {{convert|4,200|ft|m|sigfig=3}} and its total height is {{convert|746|ft|m}}.<ref>{{cite web |date=2019 |url=https://www.history.com/topics/landmarks/golden-gate-bridge |title=Golden Gate Bridge |website=history.com |access-date=June 29, 2020}}</ref> | |||
==History== | ==History== | ||
<!-- further work: need to describe setting of Golden Gate, how native people crossed the strait, etc --> | |||
===Ferry service=== | ===Ferry service=== | ||
{{Further|Ferries of San Francisco Bay}} | |||
] 1891]] | |||
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. |
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.<ref name="two">{{cite web |title=Two Bay Area Bridges |access-date=March 9, 2009 |publisher=US Department of Transportation, Federal Highway Administration |url=https://www.fhwa.dot.gov/infrastructure/2bridges.cfm}}</ref> | ||
In 1867, the Sausalito Land and Ferry Company opened. In 1920, the service was taken over by the ], which merged in 1929 with the ferry system of the ], becoming the Southern Pacific-Golden Gate Ferries, Ltd., the largest ferry operation in the world.<ref name="two"/><ref name="scrap">{{cite news |url=https://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2005/04/28/BAG8BCGI3I1.DTL&hw=ferry&sn=310&sc=862 |work=San Francisco Chronicle |title=Ferry tale – the dream dies hard: 2 historic boats that plied the bay seek buyer – anybody |author=Fimrite, Peter |access-date=October 31, 2007 |date=April 28, 2005}}</ref> Once for railroad passengers and customers only, Southern Pacific's automobile ferries became very profitable and important to the regional economy.<ref>{{cite book |title=San Francisco Bay Ferryboats |author=Harlan, George H. |publisher=Howell-North Books |year=1967 |url=https://books.google.com/books?id=IPBAAAAAIAAJ}}</ref> The ferry crossing between the ] in San Francisco and ] in Marin County took approximately 20 minutes and cost $1.00 per vehicle prior to 1937, when the price was reduced to compete with the new bridge.<ref name="bc">{{cite news |url=https://www.baycrossings.com/archives/2002/04_May/so_where_are_they_now.htm |publisher=Bay Crossings |title=So Where Are They Now? The Story of San Francisco's Steel Electric Empire |author=Span, Guy |date=May 4, 2002 |access-date=October 31, 2007 |archive-url=https://web.archive.org/web/20071023072202/https://www.baycrossings.com/Archives/2002/4_May/so_where_are_they_now.htm |archive-date=October 23, 2007 }}</ref><ref>{{Cite web |date=September 25, 2019 |title=Golden Gate Bridge War on Ferries |url=https://www.sausalitohistoricalsociety.com/2019-columns/2019/9/25/golden-gate-bridge-war-on-ferries |access-date=August 9, 2023 |website=The Sausalito Historical Society |language=en-US}}</ref> The trip from the ] took 27 minutes. | |||
Many wanted to build a bridge to connect San Francisco to Marin County. San Francisco was the largest American city still served primarily by ferry boats. Because it did not have a permanent link with communities around the bay, the city’s growth rate was below the national average.<ref name="Sigmund">{{cite web |last=Sigmund |first=Pete |year=2006 |url=http://www.cegltd.com/story.asp?story=7045&headline=The%20Golden%20Gate:%20%EBThe%20Bridge%20That%20Couldn%EDt%20Be%20Built%ED |title=The Golden Gate: 'The Bridge That Couldn't Be Built', |publisher=Construction Equipment Guide |accessdate=2007-05-31}}</ref> Many experts said that a bridge couldn’t be built across the {{convert|6700|ft|m|0|abbr=on}} strait. It had strong, swirling tides and currents, with water {{convert|500|ft|m|abbr=on}} in depth at the center of the channel, and frequent strong winds. Experts said that ferocious winds and blinding fogs would prevent construction and operation.<ref name="Sigmund"/> | |||
] | |||
Many wanted to build a bridge to connect San Francisco to Marin County. San Francisco was the largest American city still served primarily by ferry boats. Because it did not have a permanent link with communities around the bay, the city's growth rate was below the national average.<ref name="Sigmund">{{cite web |last=Sigmund |first=Pete |year=2006 |url=https://www.cegltd.com/story.asp?story=7045&headline=The%20Golden%20Gate:%20%EBThe%20Bridge%20That%20Couldn%EDt%20Be%20Built%ED |title=The Golden Gate: 'The Bridge That Couldn't Be Built' |publisher=Construction Equipment Guide |access-date=May 31, 2007 |archive-date=December 16, 2019 |archive-url=https://web.archive.org/web/20191216110116/https://www.cegltd.com/story.asp?story=7045&headline=The%20Golden%20Gate:%20%EBThe%20Bridge%20That%20Couldn%EDt%20Be%20Built%ED }}</ref> Many experts said that a bridge could not be built across the {{convert|6700|ft|m|abbr=off|adj=on}} strait, which had strong, swirling tides and currents, with water {{convert|372|ft|m|abbr=on}} deep<ref>{{cite journal |author=P. L. Barnard |author2=D. M. Hanes |author3=D. M. Rubin |author4=R. G. Kvitek |title=Giant Sand Waves at the Mouth of San Francisco Bay |journal=Eos |date=July 18, 2006 |volume=87 |issue=29 |page=285 |url=https://seafloor.csumb.edu/publications/Barnard_etal_EOSJuly2006.pdf |access-date=April 22, 2012 |archive-url=https://web.archive.org/web/20180618102436/https://seafloor.csumb.edu/publications/Barnard_etal_EOSJuly2006.pdf |archive-date=June 18, 2018 |doi=10.1029/2006EO290003 |bibcode=2006EOSTr..87..285B |issn = 0096-3941}}</ref> at the center of the channel, and frequent strong winds. Experts said that ferocious winds and blinding fogs would prevent construction and operation.<ref name="Sigmund"/> | |||
===Conception=== | |||
Although the idea of a bridge spanning the Golden Gate was not new, the proposal that eventually took place was made in a 1916 ] article by former engineering student James Wilkins.<ref name="Owens">{{cite book |author=T.O. Owens |year=2001 |title=The Golden Gate Bridge |publisher=The Rosen Publishing Group |comments=24 pp. ISBN 0-8239-5016-6}}</ref> San Francisco's City Engineer estimated the cost at $100 million, impractical for the time, and fielded the question to bridge engineers of whether it could be built for less.<ref name="two"/> One who responded, ], was an ambitious but dreamy engineer and poet who had, for his ], designed a {{convert|55|mi|km|sing=on}} long railroad bridge across the ].<ref name="experience">{{cite web |publisher=Public Broadcasting Service |accessdate=2007-11-07 |title=The American Experience:People & Events: Joseph Strauss (1870–1938) |url=http://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_strauss.html}}</ref> At the time, Strauss had completed some 400 ]—most of which were inland—and nothing on the scale of the new project.<ref name="Denton">Denton, Harry et al. (2004) "Lonely Planet San Francisco" ''Lonely Planet'', United States. 352 pp. ISBN 1-74104-154-6</ref> Strauss's initial drawings<ref name="Owens"/> were for a massive ] on each side of the strait, connected by a central suspension segment, which Strauss promised could be built for $17 million.<ref name="two"/> | |||
==== Conception ==== | |||
Local authorities agreed to proceed only on the assurance that Strauss alter the design and accept input from several consulting project experts.{{Citation needed|date=October 2007}} A suspension-bridge design was considered the most practical, because of recent advances in ].<ref name="two"/><!--further work: who was Strauss and why did he initiate this? Was he on his own or working for someone? Why would he drum up support—was this a business proposition for him? Who derided the work and what did they say?—need sources. Who were local authorities and why was their approval necessary? What was the relation between Strauss and officials? Did the officials appoint consulting experts? What does it mean to say “he had to hire experts”?--> | |||
] in foreground, {{circa|1891}}]] | |||
Although the idea of a bridge spanning the Golden Gate was not new, the proposal that eventually took hold was made in a 1916 '']'' article by former engineering student James Wilkins.<ref name="Owens">{{cite book |author=Owens, T.O. |year=2001 |title=The Golden Gate Bridge |publisher=The Rosen Publishing Group |isbn=0-8239-5016-6 |url=https://archive.org/details/goldengatebridge00owen }}</ref> San Francisco's City Engineer estimated the cost at $100 million (equivalent to ${{inflation|US|.100|1916|r=1|fmt=c}} billion in {{inflation year|US}}), and impractical for the time. He asked bridge engineers whether it could be built for less.<ref name="two"/> One who responded, Joseph Strauss, was an ambitious engineer and poet who had, for his ], designed a {{convert|55|mi|km|adj=mid|-long}} ] the ].<ref name="experience">{{cite web |publisher=Public Broadcasting Service |access-date=November 7, 2007 |title=The American Experience:People & Events: Joseph Strauss (1870–1938) |url=https://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_strauss.html |archive-date=November 17, 2007 |archive-url=https://web.archive.org/web/20071117114217/http://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_strauss.html }}</ref> At the time, Strauss had completed some 400 ]—most of which were inland—and nothing on the scale of the new project.<ref name="Denton">Denton, Harry ''et al.'' (2004) "Lonely Planet San Francisco" ''Lonely Planet'', United States, {{ISBN|1-74104-154-6}}</ref> Strauss's initial drawings<ref name=":0">{{Cite web |date=June 9, 2023 |title=Engineering the Design - The History of the Design and Construction {{!}} Golden Gate |url=https://www.goldengate.org/exhibits/engineering-the-design/ |access-date=September 25, 2023 |archive-date=June 9, 2023 |archive-url=https://web.archive.org/web/20230609180719/https://www.goldengate.org/exhibits/engineering-the-design/ |url-status=bot: unknown }}</ref> were for a massive ] on each side of the strait, connected by a central suspension segment, which Strauss promised could be built for $17 million (equivalent to ${{inflation|US|17|1916|r=0|fmt=c}} million in {{inflation year|US}}).<ref name="two"/> | |||
A suspension-bridge design was chosen, using recent advances in bridge design and ].<ref name="two"/> | |||
Strauss spent more than a decade drumming up support in Northern California.<ref>{{cite web |last= |first= |authorlink= |coauthors= |year=1999 |url=http://www.lib.berkeley.edu/news_events/exhibits/bridge/up028.html |title=Bridging the Bay: Bridges That Never Were |work= |publisher=UC Berkeley Library |accessdate=2006-04-13 |accessyear=}}</ref> The bridge faced opposition, including litigation, from many sources. The ] was concerned that the bridge would interfere with ship traffic; the navy feared that a ship collision or sabotage to the bridge could block the entrance to one of its main harbors. Unions demanded guarantees that local workers would be favored for construction jobs. Southern Pacific Railroad, one of the most powerful business interests in California, opposed the bridge as competition to its ferry fleet and filed a lawsuit against the project, leading to a mass boycott of the ferry service.<ref name="two"/> In May 1924, Colonel Herbert Deakyne held the second hearing on the Bridge on behalf of the ] in a request to use Federal land for construction. Deakyne, on behalf of the Secretary of War, approved the transfer of land needed for the bridge structure and leading roads to the "Bridging the Golden Gate Association" and both San Francisco County and Marin County, pending further bridge plans by Strauss.<ref>Miller, John B. (2002) "Case Studies in Infrastructure Delivery" ''Springer''. 296 pp. ISBN 0-7923-7652-8.</ref> Another ally was the fledgling ], which supported the development of roads and bridges to increase demand for automobiles.<ref name="bc"/> | |||
Strauss spent more than a decade drumming up support in Northern California.<ref>{{cite web |year=1999 |url=https://www.lib.berkeley.edu/news_events/exhibits/bridge/up028.html |title=Bridging the Bay: Bridges That Never Were |publisher=UC Berkeley Library |access-date=April 13, 2006 |archive-url=https://web.archive.org/web/20060718052702/https://www.lib.berkeley.edu/news_events/exhibits/bridge/up028.html |archive-date=July 18, 2006 }}</ref> The bridge faced opposition, including litigation, from many sources. The ] was concerned that the bridge would interfere with ship traffic. The ] feared that a ship collision or sabotage to the bridge could block the entrance to one of its main harbors. Unions demanded guarantees that local workers would be favored for construction jobs. ], one of the most powerful business interests in California, opposed the bridge as competition to its ferry fleet and filed a lawsuit against the project, leading to a mass boycott of the ferry service.<ref name="two"/> | |||
The bridge's name was first used when the project was initially discussed in 1917 by ], city engineer of San Francisco, and Strauss. The name became official with the passage of the ] Act by the ] in 1923.<ref>{{cite book | last = Gudde | first = Erwin G. | title = California Place Names | publisher = ] | date = 1949 | location = Berkeley, California | page = 130| id = {{ASIN|B000FMOPP4}} }}</ref> | |||
In May 1924, Colonel ] held the second hearing on the Bridge on behalf of the ] in a request to use federal land for construction. Deakyne, on behalf of the Secretary of War, approved the transfer of land needed for the bridge structure and leading roads to the "Bridging the Golden Gate Association" and both San Francisco County and Marin County, pending further bridge plans by Strauss.<ref>Miller, John B. (2002) "Case Studies in Infrastructure Delivery" ''Springer'', {{ISBN|0-7923-7652-8}}.</ref> Another ally was the fledgling ], which supported the development of roads and bridges to increase demand for automobiles.<ref name="bc"/> | |||
The bridge's name was first used when the project was initially discussed in 1917 by ], city engineer of San Francisco, and Strauss. The name became official with the passage of the ] Act by the ] in 1923, creating a ] to design, build and finance the bridge.<ref>{{cite book |last=Gudde |first=Erwin G. |title=California Place Names |publisher=] |year=1949 |location=Berkeley, California |page=130 |oclc=37647557}}</ref> San Francisco and most of the counties along the ] joined the Golden Gate Bridge District, with the exception being ], whose residents opposed the bridge's construction and the traffic it would generate.<ref>{{cite web |url=https://goldengatebridge.org/research/ConstructionBldgGGB.php |title=Special District Formed – Golden Gate Bridge and Highway District |access-date=January 17, 2015 |archive-date=January 27, 2015 |archive-url=https://web.archive.org/web/20150127015653/http://goldengatebridge.org/research/ConstructionBldgGGB.php |url-status=dead }}</ref> | |||
===Design=== | ===Design=== | ||
] | ] elements]] | ||
Strauss was the chief engineer in charge of the overall design and construction of the bridge project.<ref name="Sigmund"/> However, because he had little understanding or experience with cable-suspension designs,<ref name="PBS">{{cite web |url=https://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_strauss.html |publisher=Public Broadcasting Service |access-date=December 12, 2007 |title=People and Events: Joseph Strauss (1870–1938) |archive-date=November 17, 2007 |archive-url=https://web.archive.org/web/20071117114217/https://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_strauss.html }}</ref> 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.<ref name=":0" /> The final suspension design was conceived and championed by ], the engineer of the ] in New York City.<ref>{{cite web|title=Golden Gate Bridge Design|url=https://www.goldengatebridge.org/research/Design.php|website=goldengatebridge.org|publisher=Golden Gate Bridge, Highway and Transportation District|access-date=November 27, 2017|language=en|archive-date=December 10, 2017|archive-url=https://web.archive.org/web/20171210054905/https://goldengatebridge.org/research/Design.php}}</ref> | |||
] | |||
Irving Morrow, a relatively unknown residential architect, designed the overall shape of the bridge towers, the lighting scheme, and Art Deco elements, such as the tower decorations, streetlights, railing, and walkways. The famous ] color was Morrow's personal selection, winning out over other possibilities, including the US Navy's suggestion that it be painted with black and yellow stripes to ensure visibility by passing ships.<ref name="Sigmund" /><ref>{{Cite web|url=https://www.pbs.org/wgbh/americanexperience/features/goldengate-morrow/|title=Irving Morrow {{!}} American Experience {{!}} PBS|website=www.pbs.org|language=en|access-date=October 5, 2019}}</ref> | |||
Strauss was chief engineer in charge of overall design and construction of the bridge project.<ref name="Sigmund"/> However, because he had little understanding or experience with cable-suspension designs,<ref name="PBS">{{cite web |url=http://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_strauss.html |publisher=Public Broadcasting Service |accessdate=2007-12-12 |title=People and Events: Joseph Strauss (1870-1938)}}</ref> responsibility for much of the engineering and architecture fell on other experts. | |||
Senior engineer Charles Alton Ellis, collaborating remotely with Moisseiff, was the principal engineer of the project.<ref name="Moisseiff">{{cite web |url=https://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_moisseiff.html |publisher=Public Broadcasting Service |title=American Experience:Leon Moisseiff (1872–1943) |access-date=November 7, 2007 |archive-date=November 17, 2007 |archive-url=https://web.archive.org/web/20071117104634/https://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_moisseiff.html }}</ref> Moisseiff produced the basic structural design, introducing his "deflection theory" by which a thin, flexible roadway would flex in the wind, greatly reducing stress by transmitting forces via suspension cables to the bridge towers.<ref name="Moisseiff"/> Although the Golden Gate Bridge design has proved sound, a later Moisseiff design, the ], collapsed in a strong windstorm soon after it was completed, because of an unexpected ].<ref>{{cite journal |doi=10.1119/1.16590 |url=https://www.ketchum.org/billah/Billah-Scanlan.pdf |archive-url=https://web.archive.org/web/20000919163924/https://www.ketchum.org/billah/Billah-Scanlan.pdf |archive-date=September 19, 2000 |url-status=live |author1 =Billah, K. |author2=Scanlan, R. |year=1991 |title=Resonance, Tacoma Narrows Bridge Failure |series =Undergraduate Physics Textbooks |journal=] |volume=59 |issue=2 |pages=118–124}}</ref> Ellis was also tasked with designing a "bridge within a bridge" in the southern abutment, to avoid the need to demolish Fort Point, a pre–Civil War masonry fortification viewed, even then, as worthy of historic preservation. He penned a graceful steel arch spanning the fort and carrying the roadway to the bridge's southern anchorage.<ref>{{cite web |url=https://goldengatebridge.org/research/FortPoint.php |title=The Point of Fort Point: A Brief History |publisher=Golden Gate Bridge Highway and Transportation District |access-date=November 2, 2018 |archive-date=November 21, 2018 |archive-url=https://web.archive.org/web/20181121022951/http://goldengatebridge.org/research/FortPoint.php |url-status=dead }}</ref> | |||
], a relatively unknown residential architect, designed the overall shape of the bridge towers, the lighting scheme, and ] elements such as the streetlights, railing, and walkways. The famous ] color was originally used as a sealant for the bridge. Many locals persuaded Morrow to paint the bridge in the vibrant orange color instead of the standard silver or gray, and the color has been kept ever since.<ref name="morrow">{{cite web |publisher=Public Broadcasting Service |accessdate=2007-11-07 |title=The American Experience:People & Events: Irving Morrow (1884-1952) |url=http://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_morrow.html}}</ref> | |||
] | |||
Senior engineer ], collaborating remotely with famed bridge designer ], was the principal engineer of the project.<ref name="Moisseiff">{{cite web |url=http://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_moisseiff.html |publisher=Public Broadcasting Service |title=American Experience:Leon Moisseiff (1872–1943) |accessdate=2007-11-07}}</ref> Moisseiff produced the basic structural design, introducing his "deflection theory" by which a thin, flexible roadway would flex in the wind, greatly reducing stress by transmitting forces via suspension cables to the bridge towers.<ref name="Moisseiff"/> Although the Golden Gate Bridge design has proved sound, a later Moisseiff design, the ], collapsed in a strong windstorm soon after it was completed, because of an unexpected ].<ref>K. Billah and R. Scanlan (1991), ''Resonance, Tacoma Narrows Bridge Failure, and Undergraduate Physics Textbooks'', ], 59(2), 118–124 </ref> | |||
Ellis was a Greek scholar and mathematician who at one time was a University of Illinois professor of engineering despite having no engineering degree |
Ellis was a Greek scholar and mathematician who at one time was a University of Illinois professor of engineering despite having no engineering degree. He eventually earned a degree in civil engineering from the University of Illinois prior to designing the Golden Gate Bridge and spent the last twelve years of his career as a professor at Purdue University. He became an expert in structural design, writing the standard textbook of the time.<ref name="ellis"/> Ellis did much of the technical and theoretical work that built the bridge, but he received none of the credit in his lifetime. In November 1931, Strauss fired Ellis and replaced him with a former subordinate, Clifford Paine, ostensibly for wasting too much money sending telegrams back and forth to Moisseiff.<ref name="ellis"/> Ellis, obsessed with the project and unable to find work elsewhere during the Depression, continued working 70 hours per week on an unpaid basis, eventually turning in ten volumes of hand calculations.<ref name="ellis"/> | ||
With an eye toward self-promotion and posterity, Strauss downplayed the contributions of his collaborators who, despite receiving little recognition or compensation,<ref name=PBS/> are largely responsible for the final form of the bridge. He succeeded in having himself credited as the person most responsible for the design and vision of the bridge.<ref name="ellis">{{cite web |url= |
With an eye toward self-promotion and posterity, Strauss downplayed the contributions of his collaborators who, despite receiving little recognition or compensation,<ref name=PBS/> are largely responsible for the final form of the bridge. He succeeded in having himself credited as the person most responsible for the design and vision of the bridge.<ref name="ellis">{{cite web |url=https://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_ellis.html |access-date=November 7, 2007 |publisher=Public Broadcasting Service |title=The American Experience:Charles Alton Ellis (1876–1949) |archive-date=March 27, 2009 |archive-url=https://web.archive.org/web/20090327122238/https://www.pbs.org/wgbh/amex/goldengate/peopleevents/p_ellis.html }}</ref> Only much later were the contributions of the others on the design team properly appreciated.<ref name="ellis"/> In May 2007, the Golden Gate Bridge District issued a formal report on 70 years of stewardship of the famous bridge and decided to give Ellis major credit for the design of the bridge. | ||
{{Clear}} | |||
] | |||
{{Wide image|Golden-Gate-Bridge.svg|1000px|Panorama showing the height, depth, and length of the span from end to end, looking west}} | |||
{{Wide image|Golden Gate Bridge Dec 15 2015 by Don Ramey Logan.jpg|1000px|Panorama of the Golden Gate Bridge at sunset, as seen from just north of ]}} | |||
===Finance=== | ===Finance=== | ||
The |
The Golden Gate Bridge and Highway District, authorized by an act of the ], was incorporated in 1928 as the official entity to design, construct, and finance the Golden Gate Bridge.<ref name=Sigmund/> However, after the ], the District was unable to raise the construction funds, so it lobbied for a $30 million ] (equivalent to ${{inflation|US|30|1929|r=0|fmt=c}} million today). The bonds were approved in November 1930,<ref name="experience"/> by votes in the counties affected by the bridge.<ref>Jackson, Donald C. (1995) "Great American Bridges and Dams" ''John Wiley and Sons'', {{ISBN|0-471-14385-5}}</ref> The construction budget at the time of approval was $27 million (${{inflation|US|27|1930|r=0|fmt=c}} million today). However, the District was unable to sell the bonds until 1932, when ], the founder of San Francisco–based ], agreed on behalf of his bank to buy the entire issue in order to help the local economy.<ref name="two"/> | ||
] | |||
===Construction=== | ===Construction=== | ||
Construction began on January 5, 1933.<ref name="two"/> The project cost more than $35 |
Construction began on January 5, 1933.<ref name="two"/> The project cost more than $35 million<ref>{{cite web |url=https://www.lib.berkeley.edu/news_events/bridge/gate_2.html |title=Bridging the Bay: Bridges That Never Were |publisher=UC Berkeley Library |access-date=February 19, 2007}}</ref> (${{format price|{{Inflation|US-GDP|35000000|r=-7|1935}}}} in {{Inflation-year|US-GDP}} dollars{{Inflation-fn|US-GDP}}), and was completed ahead of schedule and $1.3 million under budget (equivalent to ${{inflation|US|1.3|1935|r=1|fmt=c}} million today).<ref>{{cite web |title=72 years ago today, iconic Golden Gate Bridge finished construction ahead of schedule & $1.3 million under budget |url=https://www.worldculturepictorial.com/blog/content/72-years-ago-today-iconic-golden-gate-bridge-finished-construction-ahead-schedule-13-million |date=May 27, 2009 |access-date=April 10, 2013}}</ref> | ||
The Golden Gate Bridge construction project was carried out by the McClintic-Marshall Construction Co., a subsidiary of ] founded by Howard H. McClintic and Charles D. Marshall, both of ]. | |||
] replaced during the seismic retrofit after the ]. A total of 1.2 million steel rivets hold the bridge's two towers together.]] | |||
Strauss remained head of the project, overseeing day-to-day construction and making some groundbreaking contributions. A graduate of the ], he had placed a brick from his ]'s demolished McMicken Hall in the south anchorage before the concrete was poured. He innovated the use of movable safety netting beneath the construction site, which saved the lives of many otherwise-unprotected steelworkers. Of eleven men killed from falls during construction, ten were killed (when the bridge was near completion) when the net failed under the stress of a scaffold that had fallen. Nineteen others who were saved by the net over the course of construction became proud members of the (informal) ''Halfway to Hell Club''.<ref>{{cite web |url=http://goldengatebridge.org/research/facts.php#HalfwayHell |title=Frequently Asked Questions about the Golden Gate Bridge |publisher=Golden Gate Bridge, Highway and Transportation District. |accessdate=2007-11-07}}</ref><!-- to do: review contributions of others, design approval and adoption --> | |||
Strauss remained head of the project, overseeing day-to-day construction and making some groundbreaking contributions. A graduate of the ], he placed a brick from his alma mater's demolished McMicken Hall in the south anchorage before the concrete was poured. | |||
The project was finished by April 1937, $1.3 million under budget.<ref name="two"/><!-- note contradictory statement from earlier draft: "Actual construction costs turned out to be $36.7 million, resulting in a ] of 22%"--> | |||
Strauss also innovated the use of movable safety netting beneath the men working, which saved many lives. Nineteen men saved by the nets over the course of the project formed the ]. Nonetheless, eleven men were killed in falls, ten on February 17, 1937, when a scaffold (secured by undersized bolts) with twelve men on it fell into and broke through the safety net; two of the twelve survived the {{convert|200|ft|m|adj=on}} fall into the water.<ref>{{Cite magazine |title=Life On The American Newsfront: Ten Men Fall To Death From Golden Gate Bridge |magazine=Life |pages=20–21 |date=March 1, 1937 |url=https://books.google.com/books?id=TFEEAAAAMBAJ&pg=PA20}}</ref><ref>{{cite web |url=https://goldengatebridge.org/research/facts.php#HalfwayHell |title=Frequently Asked Questions about the Golden Gate Bridge |publisher=Golden Gate Bridge, Highway and Transportation District. |access-date=November 7, 2007 |archive-date=November 5, 2007 |archive-url=https://web.archive.org/web/20071105064349/http://goldengatebridge.org/research/facts.php#HalfwayHell |url-status=dead }}</ref><!-- to do: review contributions of others, design approval and adoption --> | |||
===Opening festivities=== | |||
] | |||
] | |||
The bridge-opening celebration began on May 27, 1937 and lasted for one week. The day before vehicle traffic was allowed, 200,000 people crossed by foot and roller skate.<ref name="two"/> On opening day, Mayor ] and other officials rode the ferry to Marin, then crossed the bridge in a motorcade past three ceremonial "barriers," the last a blockade of ]s who required Joseph Strauss to present the bridge to the Highway District before allowing him to pass. An official song, "]," was chosen to commemorate the event. Strauss wrote a poem that is now on the Golden Gate Bridge entitled "The Mighty Task is Done." The next day, President Roosevelt pushed a button in ] signaling the official start of vehicle traffic over the Bridge at noon. When the celebration got out of hand, the ] had a small riot in the uptown ] area. Weeks of civil and cultural activities called "the Fiesta" followed. A statue of Strauss was moved in 1955 to a site near the bridge.<ref name="Owens"/> | |||
The ] ] was then included in the southeastern end of the Golden Gate Bridge, adjacent to the tourist plaza which was renovated in 2012.<ref name=King> | |||
==Description== | |||
{{cite news |url=https://www.sfgate.com/bayarea/place/article/Golden-Gate-Bridge-s-plaza-flawed-but-workable-3585446.php |title=Golden Gate Bridge's Plaza Flawed but Workable |work=] |date=May 25, 2012 |first=John |last=King}}</ref> The Round House Café, an Art Deco design by ] completed in 1938, has been popular throughout the years as a starting point for various commercial tours of the bridge and an unofficial gift shop.<ref name=Kligman>{{cite web |url=https://www.pgecurrents.com/2012/05/25/from-sea-to-shining-sea-pge%E2%80%99s-earley-joins-tribute-to-golden-gate-bridge/ |title=From Sea to Shining Sea: PG&E's Earley Joins Tribute to Golden Gate Bridge |work=Currents |publisher=] |date=May 25, 2012 |first=David |last=Kligman |access-date=April 12, 2013 |archive-date=October 22, 2013 |archive-url=https://web.archive.org/web/20131022021855/https://www.pgecurrents.com/2012/05/25/from-sea-to-shining-sea-pge%E2%80%99s-earley-joins-tribute-to-golden-gate-bridge/ }}</ref> The diner was renovated in 2012<ref name=King/> and the gift shop was then removed as a new, official gift shop has been included in the adjacent plaza.<ref name=Kligman/> | |||
] at the Golden Gate Bridge, San Francisco]] | |||
During the bridge work, the Assistant Civil Engineer of California ] had overseen the entire iron work of the bridge as well as half of the bridge's road work.<ref>San Francisco Examiner. May 27, 1982. No. 147, p. 2. ''Golden Gate Bridge'' – 45th anniversary of completion.</ref> | |||
===Specifications=== | |||
The center span was the ] until 1964 when the ] was erected between the boroughs of ] and ] in ], surpassing the Golden Gate Bridge by {{convert|60|ft|m|0}}.The Golden Gate Bridge also had the world's tallest suspension towers at the time of construction and retained that record until more recently. In 1957, ]'s ] surpassed the Golden Gate Bridge's total length to become the world's longest two-tower suspension bridge in total length between anchorages, but the Mackinac Bridge has a shorter suspended span (between towers) compared to the Golden Gate Bridge. | |||
=== |
==== Contributors ==== | ||
Plaque of the major contributors to the Golden Gate Bridge lists contractors, engineering-staff, directors and officers:<ref>{{Citation |last=Castaldo |first=Gaetano |title=Plaque of the major Contributors to the Golden Gate Bridge, San Francisco, California, USA |date=October 24, 2013 |url=https://www.flickr.com/photos/tanzeus/11272591214/ |access-date=June 8, 2022}}</ref> | |||
The weight of the roadway is hung from two cables that pass through the two main towers and are fixed in concrete at each end. Each cable is made of 27,572 strands of wire. There are 80,000 miles (129,000 km) of wire in the main cables.<ref></ref> The bridge has approximately 1,200,000 total ]s. | |||
{{div col}} | |||
'''Contractors''' | |||
* Foundations - ] | |||
===Traffic=== | |||
* Anchorages - ] | |||
] | |||
* Structural steel - Main span - ] | |||
* Approach steel - J.H. Pomeroy & Company Incorporated - Raymond Concrete Pile Company | |||
* Cables - ] | |||
* Electrical work - Alta Electric and Mechanical Company Incorporated | |||
* Bridge deck - Pacific Bridge Company | |||
* Presidio Approach Roads and Viaducts - Easton & Smith | |||
* Toll Plaza - Barrett & Hilp | |||
'''Engineering staff''' | |||
As the only road to exit San Francisco to the north, the bridge is part of both ] and ]. The median markers between the lanes ] 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. Although there has been discussion concerning the installation of a ] since the 1980s, the Bridge Board of Directors, in March 2005, committed to finding funding to complete the $2 million study required prior to the installation of a movable median barrier. The eastern walkway is for pedestrians and bicycles during the weekdays and during daylight hours only, and the western walkway is open to bicyclists on weekday afternoons, weekends, and holidays. | |||
The ] on the Golden Gate Bridge was reduced from {{convert|55|mph|km/h|abbr=on}} to {{convert|45|mph|km/h|abbr=on}} on 1 October 1996. | |||
* Chief engineer - Joseph B. Strauss | |||
===Aesthetics=== | |||
* Principal assistant engineer - Clifford E. Paine | |||
* Resident engineer - Russell Cone | |||
* Assistant engineer - Charles Clarahan Jr., Dwight N. Wetherell | |||
* Consulting engineer - O.H. Ammann, Charles Derleth Jr., Leon S. Moisseiff | |||
* Consulting traffic engineer - Sydney W. Taylor Jr. | |||
* Consulting architect - Irving F. Morrow | |||
* Consulting geologist - Andrew C. Lawson, Allan E. Sedgwick | |||
'''Directors''' | |||
] visible in the background at far left]] | |||
Despite its red appearance, the color of the bridge is officially an orange vermillion called '']''.<ref>{{cite web |url=http://goldengatebridge.org/research/factsGGBIntOrngPaint.php |title=Golden Gate Bridge: Construction Data |publisher=Golden Gate Bridge, Highway and Transportation District |accessdate=2007-08-20}}</ref> The color was selected by consulting architect Irving Morrow because it compliments the natural surroundings and enhances the bridge's visibility in fog. | |||
* San Francisco - William P. Filmer, Richard J. Welch, Warren Shannon, Hugo D. Newhouse, Arthur M. Brown Jr., John P. McLaughlin, William D. Hadeler, C.A. Henry, Francis V. Keesling, William P. Stanton, George T. Cameron | |||
The bridge is said to be one of the most beautiful examples of bridge engineering, both as a structural design challenge and for its aesthetic appeal. It was declared one of the modern ] by the ]. According to Frommer's travel guide, the Golden Gate Bridge is "possibly the most beautiful, certainly the most photographed, bridge in the world"<ref>{{cite web |last= |first= |authorlink= |coauthors= |year=2006 |url=http://www.frommers.com/destinations/sanfrancisco/A25170.html |title=Golden Gate Bridge - Museum/Attraction View |work= |publisher=Frommers |accessdate=2006-04-13}}</ref> (although Frommers also bestows the "most photographed" honor on ] in ], ]).<ref>{{cite web |last= |first= |authorlink= |coauthors= |year=2006 |url=http://www.frommers.com/destinations/london/A29870.html |title=Tower Bridge - Museum/Attraction View - London |work= |publisher=Frommers |accessdate=2006-04-13}}</ref> | |||
* Marin County - Robert H. Trumbull, Harry Lutgens | |||
* Napa County - Thomas Maxwell | |||
* Sonoma County - Frank P. Doyle, Joseph A. McMinn | |||
* Mendocino County - A. R. O'Brien | |||
* Del Norte County - Henry Westbrook Jr., Milton M. McVay | |||
'''Officers''' | |||
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.<ref>Rodriguez, Joseph A. (2000) . ''Journal of Planning Education and Research'' v. 20 pp. 66-76.</ref> | |||
* President - William P. Filmer | |||
===Paintwork=== | |||
* Vice President - Robert H. Trumbull | |||
The bridge was originally painted with ] primer and a ]-based ], 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 ] primer and ] topcoats.<ref>{{cite web |last= |first= |authorlink= |coauthors= |year=2006 |url=http://goldengatebridge.org/research/facts.php#PaintHowOften |title=Golden Gate Bridge: Research Library: How Often is the Golden Gate Bridge Repainted? |format= |work= |publisher=Golden Gate Bridge, Highway and Transportation District |accessdate=2006-04-13}}</ref><ref>{{cite web |last= |first= |authorlink= |coauthors= |year=2006 |url=http://goldengatebridge.org/research/factsGGBIntOrngPaint.php |title=Golden Gate Bridge: Construction Data: Painting The Golden Gate Bridge |format= |work= |publisher=Golden Gate Bridge, Highway and Transportation District |accessdate=2006-04-13}}</ref> Since 1990 ] topcoats have been used instead for air-quality reasons. The program was completed in 1995 and it is now maintained by 38 painters who touch up the paintwork where it becomes seriously eroded.<ref>{{cite web |last= |first= |authorlink= |coauthors= |year=2006 |url=http://goldengatebridge.org/research/facts.php#IronworkersPainters |title=Golden Gate Bridge: Construction Data: How Many Ironworkers and Painters Maintain the Golden Gate Bridge? |format= | work= |publisher=Golden Gate Bridge, Highway and Transportation District |accessdate=2006-04-13}}</ref> | |||
* General manager - James Reed, Alan McDonald | |||
] at the San Francisco terminus (right). Behind the arch is ], and to the left of that, ], mostly obscuring the ] hills.]] | |||
* Chief engineer - Joseph B. Strauss | |||
* Secretary - W. W. Felt Jr. | |||
* Auditor - Roy S. West, John R. Ruckstell | |||
* Attorney - George H. Harlan | |||
{{div col end}} | |||
===Torsional bracing retrofit=== | |||
==Current issues== | |||
On December 1, 1951, a windstorm revealed swaying and rolling instabilities of the bridge, resulting in its closure.<ref>{{cite news |last1=Van Niekerken |first1=Bill |title=When the Golden Gate Bridge was closed by a violent storm |url=https://www.sfchronicle.com/thetake/article/When-the-Golden-Gate-Bridge-was-closed-by-a-7971512.php |access-date=August 2, 2020 |date=June 13, 2016}}</ref> In 1953 and 1954, the bridge was retrofitted with lateral and diagonal bracing that connected the lower chords of the two side trusses. This bracing stiffened the bridge deck in torsion so that it would better resist the types of twisting that had destroyed the ] in 1940.<ref>{{Cite web|url=https://goldengate.org/exhibits/bridge-deck-torsional-resistance-retrofit.php|title=Resisting the Twisting|website=Golden Gate Bridge Highway and Transportation District|access-date=July 29, 2019}}</ref> | |||
===Economics=== | |||
The last of the construction bonds were retired in 1971, with $35 million in principal and nearly $39 million in interest raised entirely from bridge tolls.<ref name=KeyDates>{{cite web | publisher=Research Library | title=Key Dates | url=http://goldengatebridge.org/research/dates.php | accessdate=2007-12-11}}</ref> | |||
===Bridge deck replacement (1982–1986)=== | |||
In November 2006, the Golden Gate Bridge, Highway and Transportation District recommended a ] program for the bridge to address its operating deficit, projected at $80 million over five years. The District promised that the proposal, which it called a "partnership program," would not include changing the name of the bridge or placing ] on the bridge itself. In October 2007, the Board unanimously voted to discontinue the proposal and seek additional revenue through other means, most likely a toll increase.<ref>{{cite news|publisher=San Francisco Chronicle|url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/10/27/BAIPT1MHO.DTL&hw=golden+gate&sn=001&sc=1000|accessdate=2007-10-27|title=Golden Gate Bridge directors reject sponsorship proposals|author=Jonathan Curiel, Chronicle Staff Writer|date=October 27, 2007}}</ref><ref>{{cite web|url=http://goldengate.org/news/PartnershipProgram.php|publisher=Golden Gate Bridge, Highway and Transportation District|accessdate=2007-10-27|title= Partnership Program Status}}</ref> | |||
The original bridge used a ] ]. ] carried by fog or mist reached the ], causing ] and concrete ]ing. From 1982 to 1986, the original bridge deck, in 747 sections, was systematically replaced with a 40% lighter, and stronger, steel ] panels, over 401 nights without closing the roadway completely to traffic. The roadway was also widened by two feet, resulting in outside curb lane width of 11 feet, instead of 10 feet for the inside lanes. This deck replacement was the bridge's greatest engineering project since it was built and cost over $68 million.<ref>{{cite web |title=Bridge Deck Replacement (1982–1986) |url=https://www.goldengate.org/bridge/bridge-maintenance/major-bridge-improvements/ |website=goldengate.org |access-date=August 2, 2020}}</ref> | |||
===Opening festivities, and 50th and 75th anniversaries=== | |||
On 2 September 2008, the auto cash toll for all southbound ]s was raised from $5 to $6, and the FasTrak toll was increased from $4 to $5. Bicycle, pedestrian, and northbound motor vehicle traffic remain toll free.<ref>http://goldengate.org/toll/index.php</ref> For vehicles with more than two axles, the toll rate is $2.50 per axle.<ref>Schulte-Peevers, Andrea (2003) "Lonely Planet California" ''Lonely Planet'', United States. 737 pp. ISBN 1-86450-331-9</ref><ref>http://goldengatebridge.org/tolls_traffic/toll_rates_carpools.php</ref> | |||
] | |||
]]] | |||
The bridge-opening celebration in 1937 began on May 27 and lasted for one week.<ref name=optdy>{{cite news |url=https://news.google.com/newspapers?id=6rgzAAAAIBAJ&sjid=1e4HAAAAIBAJ&pg=5919%2C986451 |work=Lodi News-Sentinel |location=(California) |agency=United Press |title=Bay Bridge fete opens today |date=May 27, 1937 |page=1}}</ref> The day before vehicle traffic was allowed, 200,000 people crossed either on foot or on roller skates.<ref name="two"/><ref name=trtggsr>{{cite news |url=https://news.google.com/newspapers?id=LhtWAAAAIBAJ&sjid=suMDAAAAIBAJ&pg=4122%2C3915984 |work=Spokesman-Review |location=(Spokane, Washington) |agency=Associated Press |title=Thousands rush to Golden Gate |date=May 28, 1937 |page=1}}</ref> On opening day, Mayor ] and other officials rode the ferry to Marin, then crossed the bridge in a motorcade past three ceremonial "barriers," the last a blockade of ] who required Joseph Strauss to present the bridge to the Highway District before allowing him to pass. An official song, "]," was chosen to commemorate the event. Strauss wrote a poem that is now on the Golden Gate Bridge entitled "The Mighty Task is Done." The next day, ] pushed a button in Washington, D.C. signaling the official start of vehicle traffic over the Bridge at noon. Weeks of civil and cultural activities called "the Fiesta" followed. A statue of Strauss was moved in 1955 to a site near the bridge.<ref name="Owens"/> | |||
As part of the fiftieth anniversary celebration in 1987, the Golden Gate Bridge district again closed the bridge to automobile traffic and allowed pedestrians to cross it on May 24. This Sunday morning celebration attracted 750,000 to 1,000,000 people, and ineffective crowd control meant the bridge became congested with roughly 300,000 people, causing the center span of the bridge to flatten out under the weight.<ref>{{cite web |url=http://www.mercurynews.com/ci_20695952/day-golden-gate-bridge-flattened |title=The Day the Golden Gate Bridge Flattened |author=Tung, Stephen |date=May 23, 2012 |work=San Jose Mercury News |access-date=January 17, 2016}}</ref><ref name=qmcas>{{cite news |url=https://news.google.com/newspapers?id=lPdVAAAAIBAJ&sjid=fuEDAAAAIBAJ&pg=6130%2C6367545 |work=Eugene Register-Guard |location=(Oregon) |agency=Associated Press |title=1 million celebrate a symbol |date=May 25, 1987 |page=1A}}</ref><ref name=hgbggss>{{cite news |url=https://news.google.com/newspapers?id=-LAzAAAAIBAJ&sjid=jDIHAAAAIBAJ&pg=7001%2C3189935 |work=Lodi News-Sentinel |location=(California) |agency=UPI |title=Human gridlock brought Golden Gate Bridge to a standstill | |||
|date=May 26, 1987 |page=3}}</ref> Although the bridge is designed to flex in that way under heavy loads, and was estimated not to have exceeded 40% of the yielding stress of the suspension cables,<ref>{{cite web |url=http://gndec.ac.in/~librarian/book/Book%20Cds/25885/PDF/CASES/CABLES/GOLDEN_G.PDF |archive-url=https://web.archive.org/web/20111011090153/http://gndec.ac.in/~librarian/book/Book%20Cds/25885/PDF/CASES/CABLES/GOLDEN_G.PDF |archive-date=October 11, 2011 |title=The Golden Gate Bridge |author1 =Pollalis, Spiro N. |author2 =Otto, Caroline |year=1990 |publisher=Harvard Design School |access-date=April 3, 2011}}</ref> bridge officials stated that uncontrolled pedestrian access was not being considered as part of the 75th anniversary on Sunday, May 27, 2012,<ref name="NYT">{{cite news |url=https://www.nytimes.com/1987/05/26/us/golden-gate-crowd-made-bridge-bend.html |title=Golden Gate Crowd Made Bridge Bend |author=McCarthy, Terrence |date=May 26, 1987 |work=The New York Times |access-date=April 3, 2011}}</ref><ref name="MIJ">{{cite web |url=http://www.marinij.com/marinnews/ci_15588533 |title=Golden Gate Bridge officials nix walk for 75th anniversary |author=Prado, Mark |date=July 23, 2010 |work=Marin Independent Journal |access-date=April 3, 2011 |archive-url=https://web.archive.org/web/20101227010207/http://www.marinij.com/marinnews/ci_15588533 |archive-date=December 27, 2010 }}</ref><ref name="GSA">{{cite web |url=http://goldengatebridge75.org/celebrate/golden-gate-festival.html |title=Golden Gate Festival :: Golden Gate Bridge 75th Anniversary |work=Golden Gate National Parks Conservancy |access-date=March 21, 2012}}</ref> because of the additional law enforcement costs required "since ]"<ref name="WSJ-BayArea">{{cite news |url=https://www.wsj.com/articles/SB10001424052702304019404577418440018082040 |title=A Historian's Long View of Golden Gate Bridge |work=The Wall Street Journal |date=May 24, 2012 |access-date=August 31, 2013 |author=Fowler, Geoffrey A. |pages=A13C}}</ref> | |||
<gallery mode="packed" heights="190"> | |||
File:GoldenGateBridge openingday.jpg|A pedestrian poses at the old railing on opening day, 1937. | |||
File:Golden Gate Bridge Opening - (1936).ogg|Opening of the Golden Gate Bridge | |||
File:Invitation to Golden Gate Bridge opening, 1937.jpg|Official invitation to the opening of the bridge. This copy was sent to the City of ]. | |||
</gallery> | |||
==Structural specifications== | |||
] | |||
Until 1964, the Golden Gate Bridge had the longest suspension bridge main span in the world, at {{convert|4,200|ft|m|sigfig=3}}. Since 1964 its main span length has been ]; it now has the second-longest main span in the ], after the ] in New York City. The total length of the Golden Gate Bridge from ] to abutment is {{convert|8,981|ft|m}}.<ref name = "factsGGBDesign">{{cite web|title=Bridge Design and Construction Statistics|url=http://goldengatebridge.org/research/factsGGBDesign.php|website=goldengatebridge.org|publisher=Golden Gate Bridge, Highway and Transportation District|access-date=November 27, 2017|language=en|archive-date=March 4, 2011|archive-url=https://web.archive.org/web/20110304130356/http://www.goldengatebridge.org/research/factsGGBDesign.php|url-status=dead}}</ref> | |||
The Golden Gate Bridge's clearance above high water averages {{convert|220|ft|m}} while its towers, at {{convert|746|ft|m}} above the water,<ref name = "factsGGBDesign"/> were the world's tallest on a suspension bridge until 1993 when it was surpassed by the ], in Mexico. | |||
The weight of the roadway is hung from 250 pairs of vertical suspender ropes, which are attached to two main ]. 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 ] used to fabricate both main cables is estimated to be {{convert|80,000|mi|km}}.<ref name = "factsGGBDesign"/> Each of the bridge's two towers has approximately 600,000 ]s.<ref> {{Webarchive|url=https://web.archive.org/web/20150810050111/http://goldengatebridge.org/research/facts.php#RivetsinTower |date=August 10, 2015 }}. ''goldengatebridge.org''. Golden Gate Bridge, Highway and Transportation District. Retrieved November 5, 2018.</ref> | |||
In the 1960s, when the ] system (BART) was being planned, the engineering community had conflicting opinions about the feasibility of running train tracks north to Marin County over the bridge.<ref>{{cite web |title=A History of BART |url=https://www.bart.gov/about/history |access-date=November 5, 2018}}</ref> In June 1961, consultants hired by BART completed a study that determined the bridge's suspension section was capable of supporting service on a new lower deck.<ref name="1961Report">{{cite web |title=Rapid Transit for the San Francisco Bay Area |url=http://libraryarchives.metro.net/DPGTL/bart/1961-parsons-engineering-report-to-sf-bart-district.pdf |archive-url=https://web.archive.org/web/20160917014219/http://libraryarchives.metro.net/DPGTL/bart/1961-parsons-engineering-report-to-sf-bart-district.pdf |archive-date=September 17, 2016 |url-status=live |website=LA Metro Library |publisher=Parsons Brinckerhoff / Tudor / Bechtel |access-date=July 21, 2018}}</ref> In July 1961, one of the bridge's consulting engineers, Clifford Paine, disagreed with their conclusion.<ref>{{Cite web|url=https://www.marinij.com/2010/08/07/did-marin-lose-out-on-bart/|title=Did Marin lose out on BART?|last=Prado|first=Mark|date=August 7, 2010|website=Marin Independent Journal|access-date=May 3, 2019}}</ref> In January 1962, due to more conflicting reports on feasibility, the bridge's board of directors appointed an engineering review board to analyze all the reports. The review board's report, released in April 1962, concluded that running BART on the bridge was not advisable.<ref>{{cite report |last1=Ammann |first1=Othmar H. |author-link1=Othmar Ammann |last2=Masters |first2=Frank M. |last3=Newmark |first3=Nathan M. |title=Report on Proposed Installation of Rapid Transit Trains on Golden Gate Bridge |date=April 1962 |publisher=Golden Gate Bridge And Highway District |page= 8 |url=https://catalog.hathitrust.org/Record/101668914 }}</ref> | |||
==Aesthetics== | |||
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.<ref>{{cite journal |author1 =Rodriguez, Joseph A. |year=2000 |title=Planning |author2 =Urban Rivalry in the San Francisco Bay Area in the 1930s |journal=Journal of Planning Education and Research |volume=20 |pages=66–76 |doi=10.1177/073945600128992609|s2cid=143841247 }}</ref> In 1999, it was ranked fifth on the '']'' by the ]. | |||
The color of the bridge is officially an orange ] called '']''.<ref name="orangePaint">{{cite web |url=http://goldengatebridge.org/research/factsGGBIntOrngPaint.php |title=Golden Gate Bridge: Construction Data |publisher=Golden Gate Bridge, Highway and Transportation District |access-date=August 20, 2007 |archive-date=August 22, 2011 |archive-url=https://web.archive.org/web/20110822071258/http://www.goldengatebridge.org/research/factsGGBIntOrngPaint.php |url-status=dead }}</ref><ref name=ergallr>{{cite news |url=https://news.google.com/newspapers?id=a_xVAAAAIBAJ&sjid=SuMDAAAAIBAJ&pg=5974%2C3253216 |work=Eugene Register-Guard |location=(Oregon) |agency=Associated Press |last=Price |first=Lyle W. |title=Golden Gate holds allure for painters |date=December 15, 1965 |page=4B}}</ref> The color was selected by consulting architect Irving Morrow<ref>{{cite news |last=Stamberg |first=Susan |title=The Golden Gate Bridge's Accidental Color |newspaper=NPR.org |url=https://www.npr.org/2011/04/26/135150942/the-golden-gate-bridges-accidental-color |publisher=NPR |access-date=April 27, 2011}}</ref> because it complements the natural surroundings and enhances the bridge's visibility in fog.<ref name="StClair">{{Cite book|title=The Secret Lives of Colour|last=St. Clair|first=Kassia|publisher=John Murray|year=2016|isbn=978-1-4736-3081-9|location=London|page=94|oclc=936144129}}</ref> | |||
The bridge was originally painted with ] 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 ] primer and ] topcoats.<ref name="goldengatebridge facts" /><ref name="orangePaint" /> Since 1990, ] topcoats have been used instead for air-quality reasons. The program was completed in 1995 and it is now maintained by 38 painters who touch up the paintwork where it becomes seriously corroded.<ref>{{cite web |year=2006 |url=http://goldengatebridge.org/research/facts.php#IronworkersPainters |title=Golden Gate Bridge: Construction Data: How Many Ironworkers and Painters Maintain the Golden Gate Bridge? |publisher=Golden Gate Bridge, Highway and Transportation District |access-date=April 13, 2006 |archive-date=August 10, 2015 |archive-url=https://web.archive.org/web/20150810050111/http://goldengatebridge.org/research/facts.php#IronworkersPainters |url-status=dead }}</ref> | |||
The ongoing maintenance task of painting the bridge is continuous.<ref name="PaintBridgeGGBHTD">{{cite web |url= http://goldengatebridge.org/research/factsGGBIntOrngPaint.php |title= Painting the Bridge |author= Golden Gate Bridge, Highway and Transportation District |date= 2018 |work= goldengatebridge.org |access-date= November 24, 2019 |quote= The Bridge is painted continuously. Painting the Bridge is an ongoing task and a primary maintenance job. |author-link= Golden Gate Bridge, Highway and Transportation District |archive-date= August 22, 2011 |archive-url= https://web.archive.org/web/20110822071258/http://www.goldengatebridge.org/research/factsGGBIntOrngPaint.php |url-status= dead }}</ref> | |||
{{Clear}} | |||
<gallery mode="packed" heights="200"> | |||
File:The Bridge (August 2013).jpg|A view of the Golden Gate Bridge from the Marin Headlands on a foggy morning at sunrise | |||
File:Golden Gate Bridge tower views 01.jpg|View of Marin from the south tower | |||
File:Golden Gate Bridge tower views 18.jpg|Top of the south tower | |||
</gallery> | |||
==Traffic== | |||
] | |||
]Most maps and signage mark the bridge as part of the ] between ] and ]. Although part of the ], the bridge is not officially part of ].<ref>{{cite web |url=http://goldengatebridge.org/tolls_traffic/ |title=Toll Rates & Traffic Operations |publisher=Golden Gate Bridge, Highway and Transportation District |access-date=December 3, 2013 |archive-date=December 7, 2013 |archive-url=https://web.archive.org/web/20131207003017/http://goldengatebridge.org/tolls_traffic/ |url-status=dead }}</ref> For example, under the ], 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 ] (Caltrans). | |||
The ] between the lanes ] several 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.<ref name="lane-configuration">{{cite web |url=http://goldengatebridge.org/tolls_traffic/RoadwayConfig.php |title=Roadway Configuration / Reversible Lanes |publisher=Golden Gate Bridge, Highway and Transportation District |access-date=December 23, 2012 |archive-date=December 9, 2012 |archive-url=https://web.archive.org/web/20121209104318/http://goldengatebridge.org/tolls_traffic/RoadwayConfig.php |url-status=dead }}</ref> | |||
From 1968 to 2015, opposing traffic was separated by small, ]; during that time, there were 16 fatalities resulting from 128 head-on collisions.<ref name="movable-barrier-project">{{cite web |url=http://goldengatebridge.org/projects/MovableMedianBarrier.php |title=Additional Information – Movable Median Barrier Project |publisher=Golden Gate Bridge, Highway and Transportation District |access-date=September 29, 2014 }}{{dead link|date=May 2016|bot=medic}}{{cbignore|bot=medic}}</ref> To improve safety, the ] on the Golden Gate Bridge was reduced from {{convert|50|to|45|mph|km/h|abbr=on}} on October 1, 1983.<ref name=KeyDates/> Although there had been discussion concerning the installation of a movable barrier since the 1980s, only in March 2005 did the Bridge Board of Directors commit to finding funding to complete the $2 million study required prior to the installation of a movable median barrier.<ref name="movable-barrier-project"/> Installation of the resulting barrier was completed on January 11, 2015, following a closure of 45.5 hours to private vehicle traffic, the longest in the bridge's history. The new barrier system, including the zipper trucks, cost approximately $30.3 million to purchase and install.<ref name="movable-barrier-project"/><ref>{{cite news |last1=Asimov |first1=Nanette |title=Golden Gate Bridge work finished early as barrier is installed |url=http://www.sfgate.com/bayarea/article/Golden-Gate-Bridge-work-zips-along-as-barrier-is-6008424.php |access-date=January 11, 2015 |work=San Francisco Chronicle |publisher=Hearst Newspapers |date=January 11, 2015}}</ref> | |||
The bridge carries about 112,000 vehicles per day according to the Golden Gate Bridge Highway and Transportation District.<ref>{{cite web |url=https://www.goldengate.org/bridge/bridge-operations |publisher=The Golden Gate Bridge |title=Bridge Operations |work=Goldengate.org |access-date=December 29, 2019}}</ref> | |||
===Usage and tourism=== | |||
{{See also|Golden Gate National Recreation Area}} | |||
] | |||
The bridge is popular with pedestrians and bicyclists, and was built with walkways on either side of the six vehicle traffic lanes. Initially, they were separated from the traffic lanes by only a metal curb, but railings between the walkways and the traffic lanes were added in 2003, primarily as a measure to prevent bicyclists from falling into the roadway.<ref name="jumpers">{{cite web |last=Lucas |first=Scott |url=http://www.modernluxury.com/san-francisco/story/kevin-hines-still-alive |title=Kevin Hines Is Still Alive |work=Modern Luxury |date=July 18, 2013 |access-date=July 18, 2013}}</ref> The bridge was designated as part of ] in 2021.<ref>{{cite press release|title=U.S. Bicycle Route System Adds 2,903 Miles of New Routes in 5 States|url=https://www.adventurecycling.org/about-us/media/press-releases/u-s-bicycle-route-system-adds-2-903-miles-of-new-routes-in-5-states/|publisher=Adventure Cycling Association|date=August 9, 2021|access-date=August 19, 2021|archive-date=October 20, 2021|archive-url=https://web.archive.org/web/20211020010539/https://www.adventurecycling.org/about-us/media/press-releases/u-s-bicycle-route-system-adds-2-903-miles-of-new-routes-in-5-states/|url-status=dead}}</ref> | |||
The main walkway is on the eastern side, and is open for use by both pedestrians and bicycles in the morning to mid-afternoon during weekdays (5:00 a.m. to 3:30 p.m.), and to pedestrians only for the remaining daylight hours (until 6:00 p.m., or 9:00 p.m. during ]). The eastern walkway is reserved for pedestrians on weekends (5:00 a.m. to 6:00 p.m., or 9:00 p.m. during DST), and is open exclusively to bicyclists in the evening and overnight, when it is closed to pedestrians. The western walkway is open only for bicyclists and only during the hours when they are not allowed on the eastern walkway.<ref> {{Webarchive|url=https://web.archive.org/web/20110826225457/http://goldengatebridge.org/bikesbridge/bikes.php |date=August 26, 2011 }}. Goldengatebridge.org. Retrieved June 14, 2013.</ref> | |||
Bus service across the bridge is provided by one public transportation agency, ], which runs numerous bus lines throughout the week.<ref name="Golden Gate Transit bus service">{{cite web |title=Golden Gate Transit bus service |url=http://goldengatetransit.org/services/documents/Map_SF.pdf |archive-url=https://web.archive.org/web/20070105174149/http://goldengatetransit.org/services/documents/Map_SF.pdf |archive-date=January 5, 2007 |url-status=live |publisher=Golden Gate Transit |access-date=August 19, 2012}}</ref> The southern end of the bridge, near the toll plaza and parking lot, is also accessible daily from 5:30 a.m. to midnight by ] line 28.<ref name="Muni Route 28">{{cite web |title=Muni Route 28 19th Avenue |url=http://www.sfmta.com/cms/asystem/routedesc.php?rted=28 |publisher=San Francisco Municipal Transportation Agency |access-date=August 19, 2012}}</ref> Muni formerly offered Saturday and Sunday service across the bridge on the Marin Headlands Express bus line, but this was indefinitely suspended due to the ].<ref name="Muni Route 76X">{{cite web |title=Muni Route 76X Marin Headlands |date=December 18, 2012 |url=http://www.sfmta.com/getting-around/transit/routes-stops/76x-marin-headlands |publisher=San Francisco Municipal Transportation Agency |access-date=April 4, 2024}}</ref><ref name="Service Update During COVID-19">{{cite web |title=Service Update During COVID-19 |date=March 16, 2020 |url=https://www.sfmta.com/blog/service-update-during-covid-19 |publisher=San Francisco Municipal Transportation Agency |access-date=April 4, 2024}}</ref> The Marin Airporter, a private company, also offers service across the bridge between Marin County and ].<ref>{{Cite web|url=https://marinairporter.com/|title=Marin Airporter, SFO Airport Transportation, Bus Service, Marin County, CA|website=Marin Airporter}}</ref> | |||
A ] and gift shop, originally called the "Bridge Pavilion" (since renamed the "Golden Gate Bridge Welcome Center"), is located on the San Francisco side of the bridge, adjacent to the southeast parking lot. It opened in 2012, in time for the bridge's 75th-anniversary celebration. A cafe, outdoor exhibits, and restroom facilities are located nearby.<ref>{{cite web |title=Site Improvements |url=http://goldengatebridge75.org/about/site-improvements.html |website=Golden Gate Bridge 75th Anniversary |publisher=Golden Gate Bridge Highway and Transportation District |access-date=January 12, 2015}}</ref> On the Marin side of the bridge, only accessible from the northbound lanes, is the H. Dana Bower Rest Area and Vista Point,<ref>{{cite web | url=http://www.dot.ca.gov/hq/maint/ra/ra99.htm | title=H. Dana Bowers Rest Area | publisher=California Department of Transportation | access-date=June 2, 2016 | archive-date=May 29, 2016 | archive-url=https://web.archive.org/web/20160529120513/http://www.dot.ca.gov/hq/maint/ra/ra99.htm | url-status=dead }}</ref> named after the first landscape architect for the California Division of Highways.<ref>{{cite book | url=http://www.dot.ca.gov/hq/tsip/hseb/products/Named_Freeways_Final.pdf |archive-url=https://web.archive.org/web/20121012022502/http://www.dot.ca.gov/hq/tsip/hseb/products/Named_Freeways_Final.pdf |archive-date=October 12, 2012 |url-status=live | title=2015 Named Freeways, Highways, Structures and Other Appurtenances in California | pages=183, 205 | publisher=California Department of Transportation | access-date=June 2, 2016}}</ref> | |||
Lands and waters under and around the bridge are homes to varieties of wildlife such as ]s, harbor seals, and sea lions.<ref>. Retrieved on July 30, 2017</ref><ref>The ]. 2015. . Retrieved on July 30, 2017</ref> Three species of ]s (whales) that had been absent in the area for many years have shown recent{{When|date=February 2020}} recoveries/(re)colonizations in the vicinity of the bridge; researchers studying them have encouraged stronger protections and recommended that the public watch them from the bridge or from land, or use a local ] operator.<ref>. Retrieved on July 30, 2017</ref><ref>Keener B.. 2017. . Retrieved on July 30, 2017</ref><ref>Woodrow M.. 2017. . The ]. Retrieved on July 30, 2017</ref> | |||
=== Tolls === | |||
====Current toll rates==== | |||
Tolls are only collected from southbound traffic at the toll plaza on the San Francisco side of the bridge. ] has been in effect since 2013, and drivers may either pay using the ] electronic toll collection device, using the license plate tolling program, or via a one time payment online. Effective {{Start date|2025|07|01}}, the regular toll rate for passenger cars is $9.50, with FasTrak users paying a discounted toll of $9.25. During peak traffic hours, ] vehicles carrying three or more people, or motorcycles may pay a discounted toll of $7.25 if they have FasTrak and use the designated carpool lane. Drivers must pay within 48 hours after crossing the bridge or they will be sent a toll violation invoice. The toll violation penalty is $10.25.<ref>{{cite web|title=Golden Gate Bridge|url=https://www.bayareafastrak.org/en/tolls/golden-gate-bridge.shtml|website=www.bayareafastrak.org|publisher=CalTrans|access-date=July 4, 2024}}</ref> | |||
====Historical toll rates==== | |||
] | |||
When the Golden Gate Bridge opened in 1937, the toll was 50{{spaces}}cents per car (equivalent to ${{inflation|US|0.50|1937|r=2}} in {{inflation/year|US}}), collected in each direction. In 1950 it was reduced to 40{{spaces}}cents each way (${{inflation|US|0.40|1950|r=2}} in {{inflation/year|US}}), then lowered to 25{{spaces}}cents in 1955 (${{inflation|US|0.25|1955|r=2}} in {{inflation/year|US}}). In 1968, the bridge was converted to only collect tolls from southbound traffic, with the toll amount reset back to 50{{spaces}}cents (${{inflation|US|0.50|1968|r=2}} in {{inflation/year|US}}).<ref name=TollData>{{cite web |publisher= Golden Gate Bridge, Highway and Transportation District |title=Traffic/Toll Data |url=https://www.goldengate.org/bridge/history-research/statistics-data/traffic-toll-data/ |access-date=August 20, 2021}}</ref> | |||
From May 1937 until December 1970, pedestrians were charged a toll of 10 cents for bridge access via ]s on the sidewalks.<ref>{{cite news |last1=Weise |first1=Elizabeth |title=Toll to walk Golden Gate Bridge? No way, says petition |url=https://www.usatoday.com/story/news/2014/11/17/golden-gate-bridge-pedestrian-toll-petition/19188073/ |access-date=23 March 2024 |agency=USA Today |date=November 17, 2014}}</ref><ref>{{cite news |last1=Dawid |first1=Irvin |title=Bike, Pedestrian Toll on Golden Gate Bridge Survives First Vote |url=https://www.planetizen.com/node/71854 |access-date=23 March 2024 |agency=Planetizen |date=October 26, 2014}}</ref> | |||
The last of the construction bonds were retired in 1971, with $35 million (equivalent to ${{inflation|US|35|1971}}M in {{inflation/year|US}}) in principal and nearly $39 million (${{inflation|US|39|1971}}M in {{inflation/year|US}}) in interest raised entirely from bridge tolls.<ref name=KeyDates>{{cite web |publisher=Research Library |title=Key Dates |url=http://goldengatebridge.org/research/dates.php |access-date=December 11, 2007 |archive-date=February 9, 2011 |archive-url=https://web.archive.org/web/20110209095931/http://goldengatebridge.org/research/dates.php |url-status=dead }}</ref> Tolls continued to be collected and subsequently incrementally raised; in 1991, the toll was raised a dollar to $3.00 (equivalent to ${{inflation|US|3|1991|r=2}} in {{inflation/year|US}}).<ref name=TollData/><ref name=ggblue>{{cite news |url=https://www.latimes.com/archives/la-xpm-1991-05-07-mn-1348-story.html |work=Los Angeles Times |last=Elliott |first=Christopher |title=Singing those Golden Gate Blues |date=May 7, 1991 |access-date=November 4, 2021}}</ref> | |||
The bridge began accepting tolls via the FasTrak electronic toll collection system in 2002, with $4 tolls for FasTrak users and $5 for those paying cash (equivalent to ${{inflation|US|4|2002|r=2}} and ${{inflation|US|5|2002|r=2}} respectively in {{inflation/year|US}}).<ref name=TollData/> In November 2006, the Golden Gate Bridge, Highway and Transportation District recommended a ] program for the bridge to address its operating deficit, projected at $80 million over five years. The District promised that the proposal, which it called a "partnership program", would not include changing the name of the bridge or placing advertising on the bridge itself. In October 2007, the Board unanimously voted to discontinue the proposal and seek additional revenue through other means, most likely a toll increase.<ref>{{cite news |work=San Francisco Chronicle |url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/10/27/BAIPT1MHO.DTL&hw=golden+gate&sn=001&sc=1000 |access-date=October 27, 2007 |title=Golden Gate Bridge directors reject sponsorship proposals |author=Curiel, Jonathan |date=October 27, 2007}}</ref><ref>{{cite web |url=http://goldengate.org/news/PartnershipProgram.php |publisher=Golden Gate Bridge, Highway and Transportation District |access-date=October 27, 2007 |title=Partnership Program Status}}</ref> The District later increased the toll amounts in 2008 to $5 for FasTrak users and $6 to those paying cash (equivalent to ${{inflation|US|5|2008|r=2}} and ${{inflation|US|6|2008|r=2}} respectively in {{inflation/year|US}}).<ref name=TollData/> | |||
In an effort to save $19.2 million over the following 10 years, the Golden Gate District voted in January 2011 to eliminate all toll takers by 2012 and use only ].<ref>{{cite news |url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2011/01/28/MN4M1HFS7J.DTL |title=Golden Gate Bridge to eliminate toll takers |first=Michael |last=Cabanatuan |work=San Francisco Chronicle |date=January 29, 2011 |access-date=January 30, 2011}}</ref> Subsequently, this was delayed and toll taker elimination occurred in March 2013. The cost savings have been revised to $19 million over an eight-year period. In addition to FasTrak, the Golden Gate Transportation District implemented the use of ] (branded as "Pay-by-Plate"), and also a one-time payment system for drivers to pay before or after their trip on the bridge. Twenty-eight positions were eliminated as part of this plan.<ref name = "tolls">{{cite web |url=https://www.kqed.org/news/92514/golden-gate-bridge-toll-takers-reach-end-of-the-line-as-new-payment-system-begins |title=Golden Gate Bridge Toll-takers Reach End of the Line as New Payment System Begins |publisher=KQED |date=March 27, 2013 |access-date=August 20, 2021}}</ref> | |||
On April 7, 2014, the toll for users of FasTrak was increased from $5 to $6 (equivalent to ${{inflation|US|6|2014|r=2}} in {{inflation/year|US}}), while the toll for drivers using either the license plate tolling or the one time payment system was raised from $6 to $7 (equivalent to ${{inflation|US|7|2014|r=2}} in {{inflation/year|US}}). Bicycle, pedestrian, and northbound motor vehicle traffic remain toll free. For vehicles with more than two axles, the toll rate was $7 per axle for those using license plate tolling or the one time payment system, and $6 per axle for FasTrak users. During peak traffic hours, carpool vehicles carrying two or more people and motorcycles paid a discounted toll of $4 (equivalent to ${{inflation|US|4|2014|r=2}} in {{inflation/year|US}}); drivers must have had Fastrak to take advantage of this carpool rate.<ref name="tolls"/> The Golden Gate Transportation District then increased the tolls by 25{{spaces}}cents in July 2015, and then by another 25{{spaces}}cents each of the next three years.<ref name="SFCron_20140407">{{cite news |url=http://www.sfgate.com/bayarea/article/Tolls-for-crossing-Golden-Gate-Bridge-rise-1-5381206.php |title=Tolls for crossing Golden Gate Bridge rise $1 |first=Michael |last=Cabanatuan |work=San Francisco Chronicle |date=April 7, 2014 |access-date=April 26, 2014}}</ref> | |||
In March 2019, the Golden Gate Transportation District approved a plan to implement 35-cent annual toll increases through 2023, except for the toll-by-plate program which will increase by 20{{spaces}}cents per year.<ref name="KRON_20190701">{{cite news |url=https://www.kron4.com/news/bay-area/golden-gate-bridge-toll-increase-takes-effect-july-1/ |title=Golden Gate Bridge toll increase takes effect July 1 |first=Kayla |last=Galloway |work=KRON-TV |date=July 1, 2019 |access-date=August 20, 2021 |archive-date=August 20, 2021 |archive-url=https://web.archive.org/web/20210820011006/https://www.kron4.com/news/bay-area/golden-gate-bridge-toll-increase-takes-effect-july-1/ |url-status=dead }}</ref> The district then approved another plan in March 2024 to implement 50-cent annual toll increases through 2028.<ref name="KRON_202303">{{cite news |url=https://www.kron4.com/news/bay-area/golden-gate-bridge-toll-increase-approved-goes-into-effect-this-summer/ |title=Golden Gate Bridge toll increase approved, goes into effect this summer |first=Aaron |last=Tolentino Galloway |work=KRON-TV |date=March 23, 2024 |access-date=March 27, 2024 |archive-date=March 26, 2024 |archive-url=https://web.archive.org/web/20240326213122/https://www.kron4.com/news/bay-area/golden-gate-bridge-toll-increase-approved-goes-into-effect-this-summer/ |url-status=dead }}</ref> | |||
{|class="wikitable" align="center" | |||
|+ Golden Gate Bridge toll increases (2014–28)<ref name=TollData/><ref name="SFCron_20140407"/><ref name="KRON_20190701"/><ref>{{cite web |url=https://www.goldengate.org/assets/1/6/bd02.28.14s8bfasumrec.pdf |archive-url=https://web.archive.org/web/20210820011005/https://www.goldengate.org/assets/1/6/bd02.28.14s8bfasumrec.pdf |archive-date=August 20, 2021 |url-status=live |title=Summary of Recommendations, February 27, 2014 |publisher=Golden Gate Bridge, Highway and Transportation District |work=Board of Directors |pages=5–6 |access-date=August 20, 2021}}</ref><ref>{{cite web |url=https://www.goldengate.org/district/news-media/news-archives/golden-gate-bridge-5-year-toll-increase-approved/ |title=Golden Gate Bridge 5-Year Toll Increase Approved |publisher=Golden Gate Bridge, Highway and Transportation District |work=Board of Directors |pages=5–6 |access-date=August 20, 2021}}</ref><ref>{{cite web |url=https://www.goldengate.org/golden-gate-bridge-district-approves-new-five-year-toll-program/ |title=Golden Gate Bridge District Approves New Five-Year Toll Program |publisher=Golden Gate Bridge, Highway and Transportation District |date=March 22, 2024|access-date=March 27, 2024}}</ref> | |||
|- | |||
! Effective date | |||
! ] | |||
! Toll-by-plate | |||
! Toll invoice | |||
! Carpool | |||
! Multi-axle vehicle | |||
|- | |||
| April 7, 2014 | |||
| $6.00 | |||
| colspan="2" align="center" | $7.00 | |||
| $4.00 | |||
| $7.00 per axle | |||
|- | |||
| July 1, 2015 | |||
| $6.25 | |||
| colspan="2" align="center" | $7.25 | |||
| $4.25 | |||
| $7.25 per axle | |||
|- | |||
| July 1, 2016 | |||
| $6.50 | |||
| colspan="2" align="center" | $7.50 | |||
| $4.50 | |||
| $7.50 per axle | |||
|- | |||
| July 1, 2017 | |||
| $6.75 | |||
| colspan="2" align="center" | $7.75 | |||
| $4.75 | |||
| $7.75 per axle | |||
|- | |||
| July 1, 2018 | |||
| $7.00 | |||
| colspan="2" align="center" | $8.00 | |||
| $5.00 | |||
| $8.00 per axle | |||
|- | |||
| July 1, 2019 | |||
| $7.35 | |||
| $8.20 | |||
| $8.35 | |||
| $5.35 | |||
| $8.35 per axle | |||
|- | |||
| July 1, 2020 | |||
| $7.70 | |||
| $8.40 | |||
| $8.70 | |||
| $5.70 | |||
| $8.70 per axle | |||
|- | |||
| July 1, 2021 | |||
| $8.05 | |||
| $8.60 | |||
| $9.05 | |||
| $6.05 | |||
| $9.05 per axle | |||
|- | |||
| July 1, 2022 | |||
| $8.40 | |||
| $8.80 | |||
| $9.40 | |||
| $6.40 | |||
| $9.40 per axle | |||
|- | |||
| July 1, 2023 | |||
| $8.75 | |||
| $9.00 | |||
| $9.75 | |||
| $6.75 | |||
| $9.75 per axle | |||
|- | |||
| July 1, 2024 | |||
| $9.25 | |||
| $9.50 | |||
| $10.25 | |||
| $7.25 | |||
| $10.25 per axle | |||
|- | |||
| July 1, 2025 | |||
| $9.75 | |||
| $10.00 | |||
| $10.75 | |||
| $7.75 | |||
| $10.75 per axle | |||
|- | |||
| July 1, 2026 | |||
| $10.25 | |||
| $10.50 | |||
| $11.25 | |||
| $8.25 | |||
| $11.25 per axle | |||
|- | |||
| July 1, 2027 | |||
| $10.75 | |||
| $11.00 | |||
| $11.75 | |||
| $8.75 | |||
| $11.75 per axle | |||
|- | |||
| July 1, 2028 | |||
| $11.25 | |||
| $11.50 | |||
| $12.25 | |||
| $9.25 | |||
| $12.25 per axle | |||
|} | |||
===Congestion pricing=== | ===Congestion pricing=== | ||
{{ |
{{Further|San Francisco congestion pricing}} | ||
] | |||
In March 2008, the ] board approved a resolution to implement ] at the Golden Gate Bridge, charging higher tolls during peak hours, but rising and falling depending on traffic levels. This decision allowed the ] to meet the federal requirement to receive $158 million in federal transportation funds from ] Urban Partnership grant.<ref>{{cite web | |||
|url = http://www.sonomanews.com/articles/2008/05/30/news/doc482cdfd074f2a552247919.txt | |||
|title = GG Bridge tolls could top $7, June 11 meeting will set new rates | |||
|work = Sonoma Index-Tribune | |||
|author = David Bolling | |||
|date = 29 May 2008 | |||
|accessdate = | |||
}}</ref> As a condition of the grant, the congestion toll must be in place by September 2009.<ref>{{ Cite web| author=The San Francisco Chronicle | url=http://www.planetizen.com/node/30156 | |||
| title=Congestion Pricing Approved for Golden Gate Bridge |publisher = planetizen.com|date=2008-03-19|accessdate=2008-04-03}}</ref><ref>{{ Cite web| author=Michael Cabanatuan | url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/03/15/MNT9VK8H3.DTL&hw=Bridge+raises+tolls&sn=002&sc=825 | title=Bridge raises tolls, denies Doyle Dr. funds |publisher = The San Francisco Chronicle |date=2008-03-15|accessdate=2008-04-03}}</ref> | |||
In March 2008, the Golden Gate Bridge District board approved a resolution to start ] at the Golden Gate Bridge, charging higher tolls during the peak hours, but rising and falling depending on traffic levels. This decision allowed the ] to meet the federal requirement to receive $158 million in federal transportation funds from ] ] grant.<ref>{{cite web|url=http://www.sonomanews.com/articles/2008/05/30/news/doc482cdfd074f2a552247919.txt |title=GG Bridge tolls could top $7, June 11 meeting will set new rates |work=Sonoma Index-Tribune |author=Bolling, David |date=May 29, 2008 }}{{dead link|date=May 2016|bot=medic}}{{cbignore|bot=medic}}</ref> As a condition of the grant, the congestion toll was to be in place by September 2009.<ref>{{cite web |author=The San Francisco Chronicle |url=http://www.planetizen.com/node/30156 |title=Congestion Pricing Approved for Golden Gate Bridge |publisher=planetizen.com |date=March 19, 2008 |access-date=April 3, 2008}}</ref><ref>{{cite web |author=Cabanatuan, Michael |url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/03/15/MNT9VK8H3.DTL&hw=Bridge+raises+tolls&sn=002&sc=825 |title=Bridge raises tolls, denies Doyle Dr. funds |work=The San Francisco Chronicle |date=March 15, 2008 |access-date=April 3, 2008}}</ref> | |||
The first results of the study, called the Mobility, Access and Pricing Study (MAPS), showed that a congestion pricing program is feasible.<ref>{{Cite web|url=http://www.sfcta.org/content/view/302/148/ |publisher=]|title=Mobility, Access and Pricing Study|accessdate=2009-02-22}}</ref> The different pricing scenarios considered were presented in public meetings in December 2008 and the final study results are expected for late 2009.<ref name="NYTimes01_09">{{cite web|url=http://www.nytimes.com/2009/01/04/us/04congestion.html|title=San Francisco Studies Fees to Ease Traffic|publisher=]|author=Malia Wollan|date=2009-01-04|accessdate=2009-02-22}}</ref> | |||
{{Wide image|San Francisco with two bridges and the low fog .jpg|800px|<center>San Francisco with two bridges, ] and ] from the ]</center>}} | |||
In August 2008, transportation officials ended the congestion pricing program in favor of varying rates for metered parking along the route to the bridge including on Lombard Street and ].<ref>{{cite web |url=https://www.sfgate.com/news/article/Golden-Gate-Bridge-congestion-toll-plan-dies-3200911.php |title=Golden Gate Bridge congestion toll plan dies |work=San Francisco Chronicle |author=Cabanatuan, Michael |date=August 12, 2008}}</ref> | |||
===Suicides=== | |||
] initiative, this sign promotes a special telephone available on the bridge that connects to a ].]] | |||
The Golden Gate Bridge is not only the most popular place to commit ] in the United States<ref>{{cite news |first=James |last=Bone | title=The Times |url=http://www.timesonline.co.uk/tol/news/world/us_and_americas/article4931880.ece |format=ECE |location=New York |accessdate=2008-10-23}}</ref> but the ].<ref>{{cite web |url=http://retardzone.com/2008/08/27/worlds-10-most-popular-suicide-destinations/ |title=World’s 10 most popular suicide destinations |accessdate=2008-10-23 |publisher=retard zone |date= 2008-08-27}}</ref> The deck is approximately {{convert|245|ft|m}} above the water.<!-- Distance from water to bottom of bridge is 220 ft. Distance from bottom of bridge to deck is about 25 ft per ref. --><ref>, page 5. "Depth to span ratio (of truss is) 1:168." Span of 4200 ft means truss is 25 ft deep.</ref> After a fall of approximately four seconds, jumpers hit the water at some {{convert|76|mph|km/h}}. At such a speed, water has proven to take on properties similar to concrete. Because of this, most jumpers die on their immediate contact with the water. The few who survive the initial impact generally ] or die of ] in the cold water. | |||
== Issues == | |||
An official suicide count was kept, sorted according to which of the bridge's 128 lamp posts the jumper was nearest when he or she jumped. By 2005, this count exceeded 1,200 and new suicides were averaging one every two weeks.<ref name = "acnxqw">{{cite web | last = Friend | first = Tad | url = http://www.newyorker.com/archive/2003/10/13/031013fa_fact | title = Jumpers: The fatal grandeur of the Golden Gate Bridge | work = The New Yorker | date = 2003-10-13 | accessdate = 2006-08-24 }}</ref> For comparison, the reported second-most-popular place to commit suicide in the world, ] in ], has a record of 78 bodies, found within the forest in 2002, with an average of 30 a year.<ref>{{cite web|url=http://search.japantimes.co.jp/member/member.html?nn20030207b1.htm|title='Suicide forest' yields 78 corpses|work=]|date=2003-02-07|accessdate=2008-05-03}}</ref> There were 34 bridge-jump suicides in 2006 whose bodies were recovered, in addition to four jumps that were witnessed but whose bodies were never recovered, and several bodies recovered suspected to be from bridge jumps. The California Highway Patrol removed 70 apparently suicidal people from the bridge that year.<ref>{{cite web | last = Lagos | first = Marisa | date = 2007-01-17 | url = http://sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/01/17/BAGSLNK7ER4.DTL | title = 34 confirmed suicides off GG Bridge last year | work = The San Francisco Chronicle | accessdate =January 17, 2007}}</ref> | |||
=== Protests and stunts === | |||
{{overly detailed|section|date=May 2024}} | |||
In August 1977, three ] students climbed the cables of the Golden Gate Bridge.<ref>{{cite news |archive-url=https://web.archive.org/web/20170324154729/http://www.sfchronicle.com/thetake/article/Golden-Gate-Bridge-stunts-that-have-shocked-the-11015413.php |archive-date=March 24, 2017 |url=http://www.sfchronicle.com/thetake/article/Golden-Gate-Bridge-stunts-that-have-shocked-the-11015413.php |newspaper=San Francisco Chronicle |title=Golden Gate Bridge stunts that have shocked the city over the years |first=Bill |last=Van Niekerken |date=March 20, 2017}}</ref> | |||
There is no accurate figure on the number of suicides or successful jumps since 1937, because many were not witnessed. People have been known to travel to San Francisco specifically to jump off the bridge, and may take a bus or cab to the site; police sometimes find abandoned rental cars in the parking lot. Currents beneath the bridge are very strong, and some jumpers have undoubtedly been washed out to sea without ever being seen. The water may be as cold as {{convert|47|°F|°C}}. | |||
In May 1981, Dave Aguilar climbed the South Tower of the Golden Gate Bridge to protest offshore oil drilling.<ref name="sfchronicle.com">{{cite web | url=http://www.sfchronicle.com/thetake/article/Golden-Gate-Bridge-stunts-that-have-shocked-the-11015413.php | archive-url=https://web.archive.org/web/20170324154729/http://www.sfchronicle.com/thetake/article/Golden-Gate-Bridge-stunts-that-have-shocked-the-11015413.php | archive-date=March 24, 2017 | title=Golden Gate Bridge stunts that have shocked the city over the years | date=March 20, 2017 }}</ref> | |||
The fatality rate of jumping is roughly 98%. As of 2006, only 26 people are known to have survived the jump.<ref name = "acnxqw"/> Those who ''do'' survive strike the water feet-first and at a slight angle, although individuals may still sustain broken bones or internal injuries. One young man survived a jump in 1979, swam to shore, and drove himself to a hospital. The impact cracked several of his ].<ref>{{cite web | last = Adams | first = Cecil | date = 2005-03-11 | url = http://www.straightdope.com/columns/050311.html | title = Could you jump off a bridge or a tall building and survive the fall? | work = The Straight Dope | publisher = Cecil Adams | accessdate = 2006-04-12 }}</ref> | |||
On November 24, 1996, environmentalists, including ], were arrested after scaling the Golden Gate Bridge.<ref>{{cite web | url=https://www.latimes.com/archives/la-xpm-1996-11-24-mn-2645-story.html | title=Protesters Arrested at Golden Gate Bridge | website=] | date=November 24, 1996 }}</ref> | |||
Engineering professor ], as part of her ] art collective, created a "]" by correlating the ] with the number of jumpers detected by "Suicide Boxes" containing motion-detecting cameras, which she claimed to have set up under the bridge.<ref> nytimes.com.</ref> The boxes purportedly recorded 17 jumps in three months, far greater than the official count. The ], although questioning whether Jeremijenko's suicide-detection technology actually existed, nevertheless included her project in its prestigious ].<ref>{{cite news|publisher=Wired Magazine|accessdate=2007-10-30|url=http://www.wired.com/culture/lifestyle/news/2004/08/64720|title=Tech and Art Mix at RNC Protest|author=Noah Shachtman|date=August 8, 2004}}</ref> | |||
In 1997, ] authored a bill, that was signed into law by ] that increased the maximum fine for trespassing on the bridge from $1,000 to $10,000 and doubled maximum jail time from six months to a year.<ref name="sfchronicle.com"/> | |||
Various methods have been proposed and implemented to reduce the number of suicides. The bridge is fitted with ] telephones, and staff patrol the bridge in carts, looking for people who appear to be planning to jump. Iron workers on the bridge also volunteer their time to prevent suicides by talking or wrestling down suicidal people.<ref>{{cite web | last = Ostler | first = Scott | date = 2001-01-10 | url = http://www.sfgate.com/cgi-bin/article.cgi?file=/chronicle/archive/2001/01/10/MN160983.DTL | title = Saving Lives Just Part of the Job | work = San Francisco Chronicle | accessdate = 2009-07-16 }}</ref> The bridge is now closed to pedestrians at night. Cyclists are still permitted across at night, but must be buzzed in and out through the remotely controlled security gates.<ref>{{cite web | year = 2006 | url = http://goldengatebridge.org/bikesbridge/bikes.php | title = Golden Gate Bridge: Bikes and Pedestrians | publisher = Golden Gate Bridge, Highway and Transportation District | accessdate = 2009-08-27 }}</ref> Attempts to introduce a ] had been thwarted by engineering difficulties, high costs, and public opposition.<ref>{{cite news |first= Michael |last= Cabanatuan |title= Judging the bridge's 5 suicide barrier designs |url= http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/07/09/MNR111LQTT.DTL |work= San Francisco Chronicle |date= 2008-07-09 |accessdate = 2009-08-27}}</ref> One recurring proposal had been to build a barrier to replace or augment the low railing, a component of the bridge's original architectural design. New barriers have eliminated suicides at other landmarks around the world, but were opposed for the Golden Gate Bridge for reasons of cost, aesthetics, and safety (the load from a poorly designed barrier could significantly affect the bridge's structural integrity during a strong windstorm). | |||
In July 2001, approximately 100 protesters gathered to demand an end to the ] on the Puerto Rican island of Vieques.<ref>{{Cite web |last=PEARSON |first=JENNIFER PELTZ AND JAKE |date=2018-07-05 |title=Protester's climb shuts down Statue of Liberty on July 4 |url=https://www.pressdemocrat.com/article/news/protesters-climb-shuts-down-statue-of-liberty-on-july-4/ |access-date=2024-04-18 |website=Santa Rosa Press Democrat |language=en-US}}</ref><ref>{{Cite web |title=The Militant - July 23, 2001 – San Francisco protesters demand, 'U.S. Navy Out of Vieques Now!' |url=https://www.themilitant.com/2001/6528/652862.html |access-date=2024-04-18 |website=www.themilitant.com}}</ref> | |||
Strong appeals for a suicide barrier, fence, or other preventive measures were raised once again by a well-organized vocal minority of psychiatry professionals, suicide barrier consultants, and families of jumpers after the release of the controversial 2006 documentary film ''],'' in which filmmaker Eric Steel and his production crew spent one year (2004) filming the bridge from several vantage points, in order to film actual suicide jumps. The film caught 23 jumps, most notably that of ] as well as a handful of thwarted attempts. The film also contained interviews with surviving family members of those who jumped; interviews with witnesses; and, in one segment, an interview with Kevin Hines who, as a 19-year-old in 2000, survived a suicide plunge from the span and is now a vocal advocate for some type of bridge barrier or net to prevent such incidents from occurring. | |||
During the ], three pro-Tibet activists scaled the bridge's vertical cables in April 2008 to protest the arrival of the Olympic torch in the city. The activists hung banners to denounce ].<ref>{{Cite web |last=ABC7 |title=Olympic torch protesters scale Golden Gate Bridge {{!}} ABC7 San Francisco {{!}} abc7news.com |url=https://abc7news.com/archive/6066082/ |access-date=2024-04-18 |website=ABC7 San Francisco |language=en}}</ref> The incident resulted in the closure of a northbound lane of the bridge and was part of a wave of protests across multiple cities against China's policies in Tibet.<ref>{{Cite web |title=Tibet protesters scale Golden Gate bridge - CNN.com |url=https://www.cnn.com/2008/US/04/07/bridge.protest/index.html |access-date=2024-04-18 |website=www.cnn.com}}</ref> | |||
On October 10, 2008, the Golden Gate Bridge Board of Directors voted 14 to 1 to install a plastic-covered stainless-steel net below the bridge as a suicide deterrent. The net will extend {{convert|20|ft|m|0}} on either side of the bridge and is expected to cost $40–50 million to complete.<ref>{{cite news |first=Michael |last=Cabanatuan |title=Bridge directors vote for net to deter suicides |url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/10/11/MNSH13F0MH.DTL |work=San Francisco Chronicle |date=2008-10-11 |accessdate=2008-10-23 }}</ref><ref>{{cite web |title= The Alternatives |url= http://www.ggbsuicidebarrier.org/docs/Alts-withLabels.pdf |format= PDF |date= |work= Golden Gate Bridge Physical Suicide Deterrent System Project |publisher= Golden Gate Bridge, Highway and Transportation District |accessdate= August 27, 2009}}</ref> However, lack of funding could delay the net's construction.<ref>{{cite news |first=Will |last=Reisman |title=Funding for Golden Gate Bridge suicide net proves elusive |url=http://www.sfexaminer.com/local/Funding-for-Golden-Gate-Bridge-suicide-net-proves-elusive-52559197.html |work=San Francisco Examiner |date=August 6, 2009 |accessdate=August 8, 2009 }}</ref> | |||
On January 20, 2017, thousands of people held hands as a human chain on the sidewalk across the Golden Gate Bridge as ].<ref>{{cite web | url=https://abc7news.com/golden-gate-bridge-human-chain-holding-hands-across-protest/1713263/ | archive-url=https://web.archive.org/web/20230525040556/https://abc7news.com/golden-gate-bridge-human-chain-holding-hands-across-protest/1713263/ | archive-date=May 25, 2023 | title=PHOTOS: Thousands gather to hold hands across Golden Gate Bridge }}</ref> | |||
On June 6, 2020, protesters shut down traffic on the Golden Gate Bridge in a demonstration against ] following the ]. The protest, originally confined to the pedestrian path, spilled into traffic lanes as activists knelt for ], symbolizing the time a police officer knelt on Floyd's neck.<ref>{{cite news |title='Lead with Love': Meet the 2 Bay Area teens who organized, led massive Black Lives Matter rally on Golden Gate Bridge |url=https://abc7news.com/black-lives-matter-george-floyd-peaceful-protest-sf-police/6238147/ |access-date=2 April 2024 |agency=KABC-TV}}</ref> Law enforcement was unable to redirect protesters, causing a complete closure of the bridge to traffic during the demonstration. This event was part of ], with San Francisco lifting its ] to allow continued gatherings in support of the movement.<ref>{{cite news |last1=Bellow |first1=Noelle |title=Golden Gate Bridge protest was organized by teens seeking change |url=https://www.kron4.com/news/bay-area/golden-gate-bridge-protest-was-organized-by-teens-seeking-change/ |access-date=2 April 2024 |agency=KRON-TV |date=2020 |archive-date=March 22, 2024 |archive-url=https://web.archive.org/web/20240322000325/https://www.kron4.com/news/bay-area/golden-gate-bridge-protest-was-organized-by-teens-seeking-change/ |url-status=dead }}</ref><ref>{{Cite web |last=Grindell |first=Samantha |title=Thousands of protesters marched across San Francisco's Golden Gate Bridge, temporarily shutting it down to traffic |url=https://www.businessinsider.com/san-francisco-golden-gate-bridge-george-floyd-protest-2020-6 |access-date=2024-04-18 |website=Business Insider |language=en-US}}</ref> | |||
Approximately 5,000 ] marched across the Golden Gate Bridge in October 2020 to raise awareness about an ] during the ] and to urge the US government to halt arms shipments to Turkey and Azerbaijan.<ref>{{Cite web |last=Contributor |first=Guest |date=2020-10-14 |title=Thousands March Across Golden Gate Bridge in Support of Artsakh |url=https://armenianweekly.com/2020/10/14/thousands-march-across-golden-gate-bridge-in-support-of-artsakh/ |access-date=2024-04-18 |website=The Armenian Weekly |language=en-US}}</ref> Organized by the ] San Francisco “Rosdom” Chapter, the demonstration aimed at informing Bay Area citizens about the violence against Armenians.<ref>{{Cite web |last=staff • • |first=NBC Bay Area |date=2023-09-11 |title=Bay Area's Armenian community rally in San Francisco |url=https://www.nbcbayarea.com/news/local/armenian-community-rally-san-francisco/3314542/ |access-date=2024-04-18 |website=NBC Bay Area |language=en-US}}</ref> | |||
In June 2021, activists from the ] marched over 250 miles to advocate for climate action, culminating in a demonstration on the Golden Gate Bridge.<ref>{{Cite web |date=2021-06-15 |title=Young climate activists marched 266 miles from Paradise to SF demanding change |url=https://abc7news.com/civilian-climate-corps-act-activists-golden-gate-bridge-march/10790176/ |access-date=2024-04-18 |website=ABC7 San Francisco |language=en}}</ref> Activists called for urgent measures to combat climate change, including the passage of President Joe Biden's ], which includes funding for green energy jobs.<ref>{{Cite news |last=Morris |first=By J.D. |title=Young climate activists head to the Golden Gate Bridge on 266-mile march from Paradise |url=https://www.sfchronicle.com/local/article/Youth-climate-activists-head-to-the-Golden-Gate-16245244.php |access-date=2024-04-18 |work=San Francisco Chronicle |language=en}}</ref> | |||
On September 30, 2021, protesters blocked traffic, urging Senate Democrats to address immigration reform and advocate for citizenship for undocumented immigrants and ].<ref>{{Cite web |last=Fernando |first=Christine |title='This injustice must stop': Protesters block Golden Gate Bridge, demand immigration reform |url=https://www.usatoday.com/story/news/nation/2021/09/30/golden-gate-bridge-blocked-protest-immigration-reform/5930606001/ |access-date=2024-04-18 |website=USA TODAY |language=en-US}}</ref> Five organizers, including an undocumented individual, were arrested during the demonstration.<ref>{{Cite news |last=Kopan |first=Deepa Fernandes and Tal |title=Golden Gate Bridge shutdown could signal the start of more direct activism on immigration reform |url=https://www.sfchronicle.com/sf/article/Protesters-shut-down-Golden-Gate-Bridge-calling-16499023.php |access-date=2024-04-18 |work=San Francisco Chronicle |language=en}}</ref> | |||
In November 2021, a protest against ] led to a chain-reaction crash at the bridge.<ref>{{Cite web |date=2021-11-12 |title=5 hurt, including 2 officers, after crash at anti-vaccine protest in San Francisco |url=https://www.nbcnews.com/news/us-news/5-hurt-2-officers-crash-anti-vaccine-protest-san-francisco-rcna5382 |access-date=2024-04-18 |website=NBC News |language=en}}</ref> During the demonstration, a vehicle collision occurred involving two California Highway Patrol officers and three Golden Gate Bridge employees. The individuals were hospitalized with not life-threatening injuries.<ref>{{Cite web |date=2021-11-11 |title=5 People Hit, CHP Officer Hospitalized in Crash on Golden Gate Bridge During Anti-Vax Protest - CBS San Francisco |url=https://www.cbsnews.com/sanfrancisco/news/anti-vax-vaccine-mandate-golden-gate-bridge-san-francisco/ |access-date=2024-04-18 |website=www.cbsnews.com |language=en-US}}</ref> | |||
Protests over the ] occurred on September 26, 2022. Over 1,000 protesters gathered at the Golden Gate Bridge Welcome Center to demonstrate against the Islamic Republic of Iran and its ] following the death of Amini, who had been detained after an encounter with Tehran police, leading to her subsequent coma and death.<ref>{{Cite web |last=Elassar |first=Alaa |date=2022-09-24 |title=Iranian Americans are demonstrating across the US in support of protesters in Iran |url=https://www.cnn.com/2022/09/24/us/iranian-american-protest-us-mahsa-amini/index.html |access-date=2024-04-18 |website=CNN |language=en}}</ref> The protest attendees voiced demands for women's rights and freedom, displayed signs and carrying former imperial state Iranian flags. The event drew attention globally, sparking solidarity protests in Iran, Greece, England, and France.<ref>{{Cite web |date=2022-09-26 |title=Demonstrators form human chain on Golden Gate Bridge, demand justice for death of Mahsa Amini |url=https://abc7news.com/mahsa-amini-san-francisco-bay-area-protest-iranian-woman-death/12266262/ |access-date=2024-04-18 |website=ABC7 San Francisco |language=en}}</ref> | |||
On February 14, 2024, a pro-Palestinian protest temporarily halted traffic on the Golden Gate Bridge. Around 20 protesters gathered on the bridge, displaying banners condemning the ], and calling for an end to ].<ref>{{cite web |date=February 14, 2024 |title=Pro-Palestinian protesters block traffic on Golden Gate Bridge in San Francisco - CBS San Francisco |url=https://www.cbsnews.com/sanfrancisco/news/golden-gate-bridge-protest-traffic-san-francisco/ |website=]}}</ref> The demonstration caused a standstill in both northbound and southbound traffic.<ref>{{Cite news |last=Flores |first=Dominic Fracassa, David Hernandez, Jessica |title=Golden Gate Bridge briefly blocked by pro-Palestinian protesters |url=https://www.sfchronicle.com/sf/article/golden-gate-bridge-gaza-protest-18667219.php |access-date=2024-04-18 |work=San Francisco Chronicle |language=en}}</ref> | |||
Pro-Palestinian protesters staged demonstrations across the bridge in April 2024 in response to the ongoing ].<ref>{{cite web | url=https://www.cbsnews.com/sanfrancisco/news/second-protest-blocks-all-lanes-of-golden-gate-bridge-san-francisco/ | title=Gaza protest shuts down Golden Gate Bridge, causing gridlock on both sides of span - CBS San Francisco | website=] | date=April 15, 2024 }}</ref> The protests aimed to raise awareness and show solidarity with Gaza during a period of conflict, with some protestors chaining themselves to vehicles to impede traffic flow.<ref>{{Cite web |date=2024-04-15 |title=38 Pro-Palestinian protesters arrested after shutdown of Golden Gate Bridge, I-880 in Oakland: CHP |url=https://abc7news.com/pro-palestinian-protesters-shut-down-golden-gate-bridge-and-i-880-in-oakland/14668534/ |access-date=2024-04-17 |website=ABC7 San Francisco |language=en}}</ref> Major highways and bridges were temporarily blocked, resulting in arrests by law enforcement.<ref>{{Cite web |date=2024-04-16 |title=Gaza war protesters shut down Golden Gate Bridge, block traffic in other cities |url=https://www.nbcnews.com/news/us-news/gaza-war-protesters-shut-golden-gate-bridge-block-traffic-rcna147945 |access-date=2024-04-17 |website=NBC News |language=en}}</ref> | |||
===Suicides=== | |||
{{Main|Suicides at the Golden Gate Bridge}} | |||
{{multiple image | |||
| align = left | |||
| direction = horizontal | |||
| header = | |||
| header_align = left/right/center | |||
| header_background = | |||
| footer = As a ] initiative, signs on the Golden Gate Bridge promote special telephones that connect to crisis hotlines, as well as 24/7 crisis text lines. | |||
| footer_align = left/right/center | |||
| footer_background = | |||
| total_width = 444 | |||
| image1 = Suicide prevention sign on the Golden Gate Bridge 2.jpg | |||
| alt1 = | |||
| caption1 = | |||
| image2 = Crisis Counseling at Golden Gate Bridge.jpg | |||
| alt2 = | |||
| caption2 = | |||
}} | |||
The Golden Gate Bridge is the most used ] in the world.<ref>{{cite news |first=James |last=Bone |title=Golden Gate bridge in San {{sic|Fransico |nolink=y}} gets safety net to deter suicides|newspaper=The Times |url=http://journalisted.com/article/jdey |via=Journalisted |archive-url=https://web.archive.org/web/20170525091537/http://journalisted.com/article/jdey |archive-date=May 25, 2017 |date=October 13, 2008}}</ref> The deck is about {{convert|245|ft|m}} above the water.<!-- Distance from water to bottom of bridge is 220 ft. Distance from bottom of bridge to deck is about 25 ft per ref. --><ref>{{cite web |url=http://keerc.snu.ac.kr/bridge/lecture/bridge/Bridge%20Design-3.pdf |title=Suspension Bridges |website=snu.ac.kr |page=5 |archive-url=https://web.archive.org/web/20030712142048/http://keerc.snu.ac.kr/bridge/lecture/bridge/Bridge%20Design-3.pdf |archive-date=July 12, 2003}}</ref> After a fall of four seconds,<ref name=":1">{{cite news |last=Branch |first=John |date=November 5, 2023 |title=What the Golden Gate Is (Finally) Doing About Suicides |work=] |url=https://www.nytimes.com/2023/11/05/us/golden-gate-bridge-suicide-nets.html}}</ref> ] hit the water at around {{cvt|75|mph|km/h m/s|-1||}}. Most die from impact ].<ref name=":1" /> About 5% survive the initial impact but generally ] or die of ] in the cold water.<ref name="lethal4">{{cite news |title=Lethal Beauty. No easy death: Suicide by bridge is gruesome, and death is almost certain. The fourth in a seven-part series on the Golden Gate Bridge barrier debate. |first1=John |last1=Koopman |date=November 2, 2005 |url=http://www.sfgate.com/news/article/LETHAL-BEAUTY-No-easy-death-Suicide-by-bridge-2562269.php#page-1 |newspaper=] |access-date=June 3, 2014}}</ref><ref name="LAtimess">{{cite web |last=Bateson |first=John |url=https://www.latimes.com/archives/la-xpm-2013-sep-29-la-oe-bateson-golden-gate-bridge-suicides-20130929-story.html |archive-url=https://web.archive.org/web/20131009064346/http://articles.latimes.com/2013/sep/29/opinion/la-oe-bateson-golden-gate-bridge-suicides-20130929 |url-status=live |archive-date=October 9, 2013 |title=The suicide magnet that is the Golden Gate Bridge |newspaper=Los Angeles Times |date=September 29, 2013 |access-date=October 14, 2013 |type=opinion}}</ref> | |||
] | |||
After years of debate and an estimated more than 1,500 deaths, suicide barriers, consisting of a stainless steel net extending {{convert|20|ft}} from the bridge and supported by structural steel 20 feet under the walkway, began to be installed in April 2017.<ref>{{cite news |first=Will |last=Houston |url=https://www.ukiahdailyjournal.com/2019/02/18/golden-gate-bridge-suicide-barrier-starting-to-take-shape/ |title=Golden Gate Bridge suicide barrier starting to take shape |newspaper=] |date=February 18, 2019}}</ref> Construction was first estimated to take approximately four years at a cost of over $200 million.<ref>{{cite web |title=Suicide Barriers Going Up At Golden Gate Bridge After Over 1.5K Deaths |url=http://sanfrancisco.cbslocal.com/2017/04/13/suicide-barriers-to-go-up-at-golden-gate-bridge-after-1-5k-deaths/ |website=CBS San Francisco |publisher=CBS Broadcasting Inc. |access-date=November 27, 2017 |language=en |date=April 13, 2017}}</ref> Installation of the nets was completed in January 2024.<ref name="abc7-3jan2024">{{cite news |last=Stone |first=J.R. |title=San Francisco installs $224M net to stop suicides off Golden Gate Bridge |url=https://abc7news.com/golden-gate-bridge-suicide-nets-kevin-hines-suicides-survivors/14268993/ |access-date=January 5, 2024 |work=] |date=January 3, 2024}}</ref> The metal nets are visible from the pedestrian walkways and are expected to be painful to land on.<ref name=":1" /> | |||
{{Clear}} | |||
===Wind=== | ===Wind=== | ||
The Golden Gate Bridge was designed to safely withstand winds of up to {{convert|68|mph|km/h|0|abbr=on}}.<ref name=Chron-sing>{{cite news |first=Rachel |last=Swan |url=https://www.sfchronicle.com/bayarea/article/Hear-that-ghostly-hum-on-the-Golden-Gate-Bridge-15321948.php |title=Hear that ghostly hum on the Golden Gate Bridge? It's here to stay |newspaper=San Francisco Chronicle |date=June 8, 2020 }}</ref> Until 2008, the bridge was closed because of weather conditions only three times: on December 1, 1951, because of gusts of {{convert|69|mph|km/h|0|abbr=on}}; on December 23, 1982, because of winds of {{convert|70|mph|km/h|0|abbr=on}}; and on December 3, 1983, because of wind gusts of {{convert|75|mph|km/h|0|abbr=on}}.<ref name="goldengatebridge facts">{{cite web |url=http://goldengatebridge.org/research/facts.php |title=Frequently Asked Questions about the Golden Gate Bridge |publisher=Golden Gate Bridge, Highway and Transportation District |access-date=March 12, 2008 |archive-date=August 10, 2015 |archive-url=https://web.archive.org/web/20150810050111/http://goldengatebridge.org/research/facts.php |url-status=dead }}</ref> An ] placed midway between the two towers on the west side of the bridge has been used to measure wind speeds. Another anemometer was placed on one of the towers. | |||
As part of the retrofitting of the bridge and installation of the suicide barrier, starting in 2019 the railings on the west side of the pedestrian walkway were replaced with thinner, more flexible ] in order to improve the bridge's aerodynamic tolerance of high wind to {{convert|100|mph|km/h|0|abbr=on}}. Starting in June 2020, reports were received of a loud hum, heard across San Francisco and Marin County, produced by the new railing slats when a strong west wind was blowing.<ref name="bridge harmonic resonance issues">{{cite news |first=Eric |last=Ting |url=https://www.sfgate.com/bayarea/article/Golden-Gate-Bridge-noise-humming-why-wind-sound-15321767.php |title=Why the Golden Gate Bridge made strange noises with the wind Friday |newspaper=San Francisco Chronicle |date=June 6, 2020 |access-date=June 6, 2020 |archive-date=July 5, 2020 |archive-url=https://web.archive.org/web/20200705073455/https://www.sfgate.com/bayarea/article/Golden-Gate-Bridge-noise-humming-why-wind-sound-15321767.php }}</ref> The sound had been predicted from ] tests,<ref name=Chron-sing/> but not included in the environmental impact report; ways of ameliorating it are being considered.<ref>{{cite news |first=Andrew |last=Chamings |url=https://www.sfgate.com/living-in-sf/article/San-Francisco-Golden-Gate-Bridge-singing-fix-15379759.php |title=Golden Gate Bridge officials look to fix 'screeching that sounds like torture' |newspaper=San Francisco Chronicle |date=July 1, 2020 }}</ref> An independent engineering analysis of a 2020 sound recording of the tones concludes that the singing noise comprises a variety of ]s (the sound produced by air flowing past a sharp edge), arising in this case from the ambient wind blowing across metal slats of the newly installed sidewalk railings.<ref>{{cite web|url=https://vibrationdata.wordpress.com/2020/07/13/golden-gate-bridge-singing/|title=Golden Gate Bridge Singing|website=Vibrationdata: Shock & Vibration Software & Tutorials|author=Tom Irvine|date=July 13, 2020|access-date=December 1, 2021}}</ref> The tones observed were frequencies of 354, 398, 439 and 481 Hz, corresponding to the ]s F<sub>4</sub>, G<sub>4</sub>, A<sub>4</sub>, and B<sub>4</sub>; these notes form an F Lydian Tetrachord. | |||
===Seismic retrofit=== | |||
Modern knowledge of the effect of earthquakes on structures led to a program to ] the Golden Gate to better resist seismic events. The proximity of the bridge to the ] 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 {{convert|320|ft|m|sing=on}} arch over ].<ref>{{cite news|title=70 YEARS: Spanning the Golden Gate:New will blend in with the old as part of bridge earthquake retrofit project|author=Carl Nolte|publisher=San Francisco Chronicle|date=2007-05-28|url=http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2007/05/28/MNGV7Q2QGI1.DTL}}</ref> A $392 million program was initiated to improve the structure's ability to withstand such an event with only minimal (repairable) damage. The retrofit's planned completion date is 2012.<ref>{{cite web | url = http://goldengatebridge.org/projects/retrofit.php | title = Overview of Golden Gate Bridge Seismic Retrofit | accessdate = 2008-06-21 | author = Golden Gate Bridge Authority | last = | first = | authorlink = | coauthors = | date = | year = 2008 | month = May| work = | publisher = | pages = | format = | language = | quote = | archiveurl = | archivedate = }}</ref><ref>{{cite web |url=http://enr.construction.com/features/transportation/archives/050103-1.asp |title= Famed Golden Gate Span Undergoes Complex Seismic Revamp |accessdate=2008-06-21 |last= Gonchar |first= Joann |authorlink= |coauthors= |date= 2005-01-03 |year= |month= |format= |work= |publisher= McGraw-Hill Construction |pages= |language= |archiveurl= |archivedate= |quote= }}</ref> | |||
{{Anchor|Seismic retrofit}} | |||
==In popular culture== | |||
As such a prominent American landmark, the Golden Gate Bridge has been used in countless pieces of media. ''See ].'' | |||
===Seismic vulnerability and improvements=== | |||
==Notes== | |||
] (short black cylinders) added as part of the Seismic Retrofit Construction Project]] | |||
{{Reflist|2}} | |||
Modern knowledge of the effect of earthquakes on structures led to a program to ] the Golden Gate to better resist seismic events. The proximity of the bridge to the ] 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 {{convert|320|ft|m|adj=on}} arch over Fort Point.<ref>{{cite news |title=70 Years: Spanning the Golden Gate: New will blend in with the old as part of bridge earthquake retrofit project |first=Carl |last=Nolte |author-link=Carl Nolte |newspaper=San Francisco Chronicle |date=May 28, 2007 |url=https://www.sfgate.com/bayarea/article/70-YEARS-Spanning-the-Golden-Gate-New-will-2558505.php }}</ref> A $392 million program was initiated to improve the structure's ability to withstand such an event with only minimal (repairable) damage. A custom-built electro-hydraulic synchronous lift system for construction of temporary support towers and a series of intricate lifts, transferring the loads from the existing bridge onto the temporary supports, were completed with engineers from ] and ], without disrupting day-to-day commuter traffic.<ref> {{Webarchive|url=https://web.archive.org/web/20210123132652/http://www.roadsbridges.com/showing-fancy-foot-work |date=January 23, 2021 }}. ''Roads&Bridges'' (December 28, 2000).</ref><ref name = "retrofit">{{cite web |url=http://goldengatebridge.org/projects/retrofit.php |title=Overview of Golden Gate Bridge Seismic Retrofit |access-date=June 21, 2008 |author=Golden Gate Bridge Authority |date=May 2008 |archive-date=June 16, 2008 |archive-url=https://web.archive.org/web/20080616091141/http://goldengatebridge.org/projects/retrofit.php |url-status=dead }}</ref> Although the retrofit was initially planned to be completed in 2012, {{As of|2017|05|lc=y}} it was expected to take several more years.<ref name = "retrofit"/><ref>{{cite web |url=http://enr.construction.com/features/transportation/archives/050103-1.asp |title=Famed Golden Gate Span Undergoes Complex Seismic Revamp |access-date=June 21, 2008 |last=Gonchar |first=Joann |date=January 3, 2005 |publisher=McGraw-Hill Construction}}</ref><ref>{{Cite web|url=https://sanfrancisco.cbslocal.com/2017/05/24/costly-golden-gate-bridge-retrofit-still-years-away-from-completion/|title=Costly Golden Gate Bridge Retrofit Still Years Away From Completion|date=May 24, 2017|access-date=July 29, 2019}}</ref> | |||
{{Anchor|Doyle Drive replacement project}} | |||
The former elevated approach to the Golden Gate Bridge through the ], known as Doyle Drive, dated to 1933 and was named after Frank P. Doyle. Doyle, the president of the Exchange Bank in Santa Rosa and son of the bank's founder, was the man who, more than any other person, made it possible to build the Golden Gate Bridge.<ref>{{cite book |url=http://www.presidioparkway.org/about/history.aspx |title=Presidio Parkway re-envisioning Doyle Drive |publisher=Presidio Parkway Project |access-date=May 6, 2010 |archive-date=December 26, 2009 |archive-url=https://web.archive.org/web/20091226180130/http://www.presidioparkway.org/about/history.aspx }}</ref> The highway carried about 91,000 vehicles each weekday between downtown San Francisco and the ] and points north.<ref>{{cite web |url=http://www.sfcta.org/content/view/275/94/ |title=Doyle Drive Replacement Project |publisher=San Francisco County Transportation Authority |access-date=May 6, 2010 |archive-url=https://web.archive.org/web/20100426064515/http://www.sfcta.org/content/view/275/94/ |archive-date=April 26, 2010 }}</ref> The road was deemed "vulnerable to earthquake damage", had a problematic 4-lane design, and lacked shoulders; a San Francisco County Transportation Authority study recommended that it be replaced. Construction on the $1 billion replacement,<ref>{{cite web |url=https://www.sfgate.com/bayarea/article/Doyle-Drive-makeover-will-affect-drivers-soon-3276621.php |archive-url=https://web.archive.org/web/20100316012125/http://articles.sfgate.com/2010-01-05/bay-area/17466642_1_doyle-drive-caltrans-closures |url-status=live |archive-date=March 16, 2010 |title=Doyle Drive makeover will affect drivers soon |last=Cabanatuan |first=Michael |date=January 5, 2010 |newspaper=San Francisco Chronicle |access-date=May 6, 2010}}</ref> temporarily known as the Presidio Parkway, began in December 2009.<ref>{{cite book |url=http://www.presidioparkway.org/construction_info/ |title=Current Construction Activity |work=Presidio Parkway re-envisioning Doyle Drive |publisher=Presidio Parkway |access-date=May 6, 2010 |archive-date=April 26, 2010 |archive-url=https://web.archive.org/web/20100426112839/http://www.presidioparkway.org/construction%5Finfo/ }}</ref> | |||
The elevated Doyle Drive was demolished on the weekend of April 27–30, 2012, and traffic used a part of the partially completed Presidio Parkway, until it was switched onto the finished Presidio Parkway on the weekend of July 9–12, 2015. {{as of|2012|May|}}, an official at Caltrans said there is no plan to permanently rename the portion known as Doyle Drive.<ref>{{cite news |url=http://www.pressdemocrat.com/article/20120501/news/205011005?tc=ar |title=Smith: It's wrecked, but it's still 'Doyle Drive' |newspaper=Press Democrat |date=May 1, 2012 |access-date=May 2, 2012 |archive-date=March 13, 2014 |archive-url=https://web.archive.org/web/20140313152842/http://www.pressdemocrat.com/article/20120501/news/205011005?tc=ar }}</ref> | |||
{{Clear}} | |||
==Gallery== | |||
{{comparison_of_notable_bridges.svg}} | |||
{{Wide image|San_Francisco_with_two_bridges_and_the_low_fog.jpg|800px|Panorama of San Francisco with two bridges (Western section of Bay Bridge in the left background), ] (in background to the left of north tower), and ] (on the San Francisco waterfront in the background behind the north tower) from Marin|center}} | |||
{{Wide image|Golden Gate Bridge at night.jpg|800px|Panorama of the Golden Gate Bridge at night, with San Francisco in the background|center}} | |||
==See also== | |||
{{Portal|Transport|Engineering|San Francisco Bay Area}} | |||
* '']'', a 2006 documentary on suicides from the Bridge | |||
* ] | |||
* ] | |||
* ] | |||
* ] | |||
* ] | |||
* ] | |||
* ] | |||
* ] | |||
==References== | ==References== | ||
{{reflist|30em}} | |||
* Tad Friend: , ], October 13, 2003 v79 i30 page 48 | |||
* "", ''Vibrationdata.com'', April 5, 2006 | |||
* Eric Steel: ''],'' a 2006 documentary film regarding suicides occurring at the Golden Gate Bridge. | |||
* Louise Nelson Dyble,] University of Pennsylvania Press, 2009. | |||
</div> | |||
== |
==Further reading== | ||
* {{cite book|author=Cassady, Stephen|title=Spanning the Gate|publisher=Squarebooks|isbn=978-0-916290-36-8|date=1979|edition=Commemorative edition, 1987}} | |||
{{Portal|San Francisco Bay Area|SF From Marin Highlands3.jpg}} | |||
* {{cite book|author1=Dyble, Louise Nelson|title=Paying the Toll: Local Power, Regional Politics|author2=the Golden Gate Bridge|publisher=University of Pennsylvania Press|isbn=978-0-8122-2278-4|date=2009}} | |||
<!--===========================({{NoMoreLinks}})=============================== | |||
* {{cite magazine |author=Friend, Tad |url=http://www.newyorker.com/fact/content/articles/031013fa_fact? |title=Jumpers: The fatal grandeur of the Golden Gate Bridge |magazine=] |date=October 13, 2003 |volume=79 |issue=30 |page=48 |archive-url=https://web.archive.org/web/20061108171731/http://www.newyorker.com/fact/content/articles/031013fa_fact |archive-date=November 8, 2006 }} | |||
| PLEASE BE CAUTIOUS IN ADDING MORE LINKS TO THIS ARTICLE. WIKIPEDIA IS | | |||
* {{cite news |author1 =Guthman, Edward |url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2005/10/30/MNG2NFF7KI1.DTL |title=Lethal Beauty / The Allure: Beauty |author2 =an easy route to death have long made the Golden Gate Bridge a magnet for suicides |work=] |date=October 30, 2005}} | |||
| NOT A COLLECTION OF LINKS NOR SHOULD IT BE USED FOR ADVERTISING. | | |||
* {{cite book |author=Schwartz, Harvey |title=Building the Golden Gate Bridge: A Workers' Oral History |publisher=University of Washington Press |date=2015 |isbn=978-0-295-99506-9}} | |||
| | | |||
* {{cite book|url=https://archive.org/details/goldengatelifeti00star|title=Golden Gate: The Life and Times of America's Greatest Bridge|author1=Starr, Kevin|author-link=Kevin Starr|date=2010|publisher=Bloomsbury Press|isbn=978-1-59691-534-3}} | |||
| Excessive or inappropriate links WILL BE DELETED. | | |||
* {{cite web |url=http://www.vibrationdata.com/golden.htm |title=Golden Gate Bridge Natural Frequencies |website=Vibrationdata.com |date=April 5, 2006}} | |||
| See ] and ] for details. | | |||
| | | |||
| If there are already plentiful links, please propose additions or | | |||
| replacements on this article's discussion page. Or submit your link | | |||
| to the appropriate category at the Open Directory Project (www.dmoz.org)| | |||
| and link back to that category using the {{dmoz}} template. | | |||
===========================({{NoMoreLinks}})===============================--> | |||
{{Commons|Golden Gate Bridge}} | |||
* official site | |||
*{{dmoz|/Regional/North_America/United_States/California/Metro_Areas/San_Francisco_Bay_Area/Travel_and_Tourism/Attractions/Golden_Gate_Bridge/|Golden Gate Bridge}} | |||
* from San Francisco Public Library's Historical Photograph database | |||
==External links== | |||
{{SFBridges}} | |||
{{Commons and category|Golden Gate Bridge|Golden Gate Bridge}} | |||
* {{official website}} | |||
* – includes toll information on this and the other Bay Area toll facilities | |||
* {{HAER |survey=CA-31 |id=ca1355 |title=Golden Gate Bridge |photos=41 |color=6 |data=1 |cap=4}} | |||
* {{cite web |url=http://sflib1.sfpl.org:82/search~S0/?searchtype=X&searcharg=%22Bridges+--+Golden+Gate%22+&sortdropdown=-&SORT=D&extended=0&SUBMIT=Search&searchlimits=&searchorigarg=X%22s%3ABridges%22+--+Golden+Gate+%26SORT%3DD |title=Images of the Golden Gate Bridge |website=San Francisco Public Library's Historical Photograph database}} | |||
* {{cite news |url=https://diva.sfsu.edu/collections/sfbatv/bundles/191374 |date=1962 |work=KPIX-TV |author=Marshal 'J' (Narrator) |title=The Bridge Builders}} (A documentary film about the construction of the Golden Gate Bridge.) | |||
* {{cite news |url=https://books.google.com/books?id=9ycDAAAAMBAJ&pg=PA25 |title=San Francisco To Have World's Greatest Bridge |date=March 1931 |work=Popular Science}} | |||
* {{cite web |url=http://sftodo.com/golden-gate-bridge-facts.html |title=Golden Gate Bridge facts |website=sftodo.com |access-date=February 3, 2015 |archive-date=February 3, 2015 |archive-url=https://web.archive.org/web/20150203203905/http://www.sftodo.com/golden-gate-bridge-facts.html }} (Educational poster.) | |||
* {{cite web |url=http://goldengatebridgemovie.blogspot.com/ |website=Golden Gate Bridge Movie |title=End of Land Sadness – The history of Suicide and the Golden Gate Bridge}} | |||
{{Crossings navbox | {{Crossings navbox | ||
|structure |
|structure = Crossings | ||
|place |
|place = ] | ||
|bridge |
|bridge = Golden Gate Bridge | ||
|upstream text = West | |||
|bridge signs = ] ] | |||
|upstream |
|upstream = Pacific Ocean | ||
|upstream |
|upstream signs = | ||
|upstream signs = | |||
|downstream text = East | |downstream text = East | ||
|downstream |
|downstream = North Bay:<br />]<br />] | ||
---- | ---- | ||
South Bay:<br>]<br>''BART'' | South Bay:<br />]<br />''BART'' | ||
|downstream signs = |
|downstream signs = | ||
}} | }} | ||
{{LongestBridge | {{LongestBridge | ||
Line 231: | Line 512: | ||
| previous = George Washington Bridge | | previous = George Washington Bridge | ||
| current = Golden Gate Bridge | | current = Golden Gate Bridge | ||
| next = |
| next = Verrazzano-Narrows Bridge | ||
}} | }} | ||
{{San Francisco Attractions}} | {{San Francisco Attractions}} | ||
{{San Francisco Bay watershed}} | |||
{{Authority control}} | |||
<!--Per ]--> | |||
] | |||
<!-- required --> | |||
] | |||
] | ] | ||
] | |||
] | |||
] | ] | ||
] | |||
] | |||
] | ] | ||
] | ] | ||
] | ] | ||
] | |||
] | |||
] | ] | ||
] | |||
] | ] | ||
] | ] | ||
] | ] | ||
] | ] | ||
] | |||
] | |||
] | |||
] | |||
] | ] | ||
] | ] | ||
] | |||
] | |||
] | |||
] | |||
] | ] | ||
] | |||
] | |||
{{Link FA|fr}} | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] | |||
] |
Latest revision as of 20:21, 28 December 2024
Bridge in the San Francisco Bay Area
Golden Gate Bridge | |
---|---|
View from the Presidio of San Francisco, 2017 | |
Coordinates | 37°49′11″N 122°28′43″W / 37.81972°N 122.47861°W / 37.81972; -122.47861 |
Carries |
|
Crosses | Golden Gate |
Locale | San Francisco, California and Marin County, California, U.S. |
Official name | Golden Gate Bridge |
Maintained by | Golden Gate Bridge, Highway and Transportation District |
Website | goldengate |
Characteristics | |
Design | Suspension, Art Deco, truss arch & truss causeways |
Material | Steel |
Total length | 8980 ft, about 1.70 mi (2.74 km) |
Width | 90 ft (27.4 m) |
Height | 746 ft (227.4 m) |
Longest span | 4200 ft, about 0.79 mi (1.27 km) |
Clearance above | 14 ft (4.3 m) at toll gates |
Clearance below | 220 ft (67.1 m) at high tide |
History | |
Architect | Irving Morrow |
Engineering design by | Joseph Strauss, Charles Ellis, Leon Solomon Moisseiff |
Constructed by | Barrett and Hilp |
Construction start | January 5, 1933 (1933-01-05) |
Construction end | April 19, 1937 (1937-04-20) |
Opened | May 27, 1937; 87 years ago (1937-05-27) |
Statistics | |
Daily traffic | 88,716 (FY2020) |
Toll |
|
California Historical Landmark | |
Designated | June 18, 1987 |
Reference no. | 974 |
San Francisco Designated Landmark | |
Designated | May 21, 1999 |
Reference no. | 222 |
Location | |
The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the one-mile-wide (1.6 km) strait connecting San Francisco Bay and the Pacific Ocean in California, United States. The structure links San Francisco—the northern tip of the San Francisco Peninsula—to Marin County, carrying both U.S. Route 101 and California State Route 1 across the strait. It also carries pedestrian and bicycle traffic, and is designated as part of U.S. Bicycle Route 95. Recognized by the American Society of Civil Engineers as one of the Wonders of the Modern World, the bridge is one of the most internationally recognized symbols of San Francisco and California.
The idea of a fixed link between San Francisco and Marin had gained increasing popularity during the late 19th century, but it was not until the early 20th century that such a link became feasible. Joseph Strauss served as chief engineer for the project, with Leon Moisseiff, Irving Morrow and Charles Ellis making significant contributions to its design. The bridge opened to the public on May 27, 1937, and has undergone various retrofits and other improvement projects in the decades since.
The Golden Gate Bridge is described in Frommer's travel guide as "possibly the most beautiful, certainly the most photographed, bridge in the world." At the time of its opening in 1937, it was both the longest and the tallest suspension bridge in the world, titles it held until 1964 and 1998 respectively. Its main span is 4,200 feet (1,280 m) and its total height is 746 feet (227 m).
History
Ferry service
Further information: Ferries of San Francisco BayBefore 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.
In 1867, the Sausalito Land and Ferry Company opened. In 1920, the service was taken over by the Golden Gate Ferry Company, which merged in 1929 with the ferry system of the Southern Pacific Railroad, becoming the Southern Pacific-Golden Gate Ferries, Ltd., the largest ferry operation in the world. Once for railroad passengers and customers only, Southern Pacific's automobile ferries became very profitable and important to the regional economy. The ferry crossing between the Hyde Street Pier in San Francisco and Sausalito Ferry Terminal in Marin County took approximately 20 minutes and cost $1.00 per vehicle prior to 1937, when the price was reduced to compete with the new bridge. The trip from the San Francisco Ferry Building took 27 minutes.
Many wanted to build a bridge to connect San Francisco to Marin County. San Francisco was the largest American city still served primarily by ferry boats. Because it did not have a permanent link with communities around the bay, the city's growth rate was below the national average. Many experts said that a bridge could not be built across the 6,700-foot (2,000-metre) strait, which had strong, swirling tides and currents, with water 372 ft (113 m) deep at the center of the channel, and frequent strong winds. Experts said that ferocious winds and blinding fogs would prevent construction and 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 $2.8 billion in 2023), 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, designed a 55-mile-long (89 km) railroad bridge across the Bering Strait. At the time, Strauss had completed some 400 drawbridges—most of which were inland—and nothing on the scale of the new project. Strauss's initial drawings were for a massive cantilever on each side of the strait, connected by a central suspension segment, which Strauss promised could be built for $17 million (equivalent to $476 million in 2023).
A suspension-bridge design was chosen, using recent advances in bridge design and metallurgy.
Strauss spent more than a decade drumming up support in Northern California. The bridge faced opposition, including litigation, from many sources. The Department of War was concerned that the bridge would interfere with ship traffic. The US Navy feared that a ship collision or sabotage to the bridge could block the entrance to one of its main harbors. Unions demanded guarantees that local workers would be favored for construction jobs. Southern Pacific Railroad, one of the most powerful business interests in California, opposed the bridge as competition to its ferry fleet and filed a lawsuit against the project, leading to a mass boycott of the ferry service.
In May 1924, Colonel Herbert Deakyne held the second hearing on the Bridge on behalf of the Secretary of War in a request to use federal land for construction. Deakyne, on behalf of the Secretary of War, approved the transfer of land needed for the bridge structure and leading roads to the "Bridging the Golden Gate Association" and both San Francisco County and Marin County, pending further bridge plans by Strauss. Another ally was the fledgling automobile industry, which supported the development of roads and bridges to increase demand for automobiles.
The bridge's name was first used when the project was initially discussed in 1917 by M.M. O'Shaughnessy, city engineer of San Francisco, and Strauss. The name became official with the passage of the Golden Gate Bridge and Highway District Act by the state legislature in 1923, creating a special district to design, build and finance the bridge. San Francisco and most of the counties along the North Coast of California joined the Golden Gate Bridge District, with the exception being Humboldt County, whose residents opposed the bridge's construction and the traffic it would generate.
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 suspension design was conceived and championed by Leon Moisseiff, the engineer of the Manhattan Bridge in New York City.
Irving Morrow, a relatively unknown residential architect, designed the overall shape of the bridge towers, the lighting scheme, and Art Deco elements, such as the tower decorations, streetlights, railing, and walkways. The famous International Orange color was Morrow's personal selection, winning out over other possibilities, including the US Navy's suggestion that it be painted with black and yellow stripes to ensure visibility by passing ships.
Senior engineer Charles Alton Ellis, collaborating remotely with Moisseiff, was the principal engineer of the project. Moisseiff produced the basic structural design, introducing his "deflection theory" by which a thin, flexible roadway would flex in the wind, greatly reducing stress by transmitting forces via suspension cables to the bridge towers. Although the Golden Gate Bridge design has proved sound, a later Moisseiff design, the original Tacoma Narrows Bridge, collapsed in a strong windstorm soon after it was completed, because of an unexpected aeroelastic flutter. Ellis was also tasked with designing a "bridge within a bridge" in the southern abutment, to avoid the need to demolish Fort Point, a pre–Civil War masonry fortification viewed, even then, as worthy of historic preservation. He penned a graceful steel arch spanning the fort and carrying the roadway to the bridge's southern anchorage.
Ellis was a Greek scholar and mathematician who at one time was a University of Illinois professor of engineering despite having no engineering degree. He eventually earned a degree in civil engineering from the University of Illinois prior to designing the Golden Gate Bridge and spent the last twelve years of his career as a professor at Purdue University. He became an expert in structural design, writing the standard textbook of the time. Ellis did much of the technical and theoretical work that built the bridge, but he received none of the credit in his lifetime. In November 1931, Strauss fired Ellis and replaced him with a former subordinate, Clifford Paine, ostensibly for wasting too much money sending telegrams back and forth to Moisseiff. Ellis, obsessed with the project and unable to find work elsewhere during the Depression, continued working 70 hours per week on an unpaid basis, eventually turning in ten volumes of hand calculations.
With an eye toward self-promotion and posterity, Strauss downplayed the contributions of his collaborators who, despite receiving little recognition or compensation, are largely responsible for the final form of the bridge. He succeeded in having himself credited as the person most responsible for the design and vision of the bridge. Only much later were the contributions of the others on the design team properly appreciated. In May 2007, the Golden Gate Bridge District issued a formal report on 70 years of stewardship of the famous bridge and decided to give Ellis major credit for the design of the bridge.
Panorama showing the height, depth, and length of the span from end to end, looking west Panorama of the Golden Gate Bridge at sunset, as seen from just north of Alcatraz IslandFinance
The Golden Gate Bridge and Highway District, authorized by an act of the California Legislature, was incorporated in 1928 as the official entity to design, construct, and finance the Golden Gate Bridge. However, after the Wall Street Crash of 1929, the District was unable to raise the construction funds, so it lobbied for a $30 million bond measure (equivalent to $532 million today). The bonds were approved in November 1930, by votes in the counties affected by the bridge. The construction budget at the time of approval was $27 million ($492 million today). However, the District was unable to sell the bonds until 1932, when Amadeo Giannini, the founder of San Francisco–based Bank of America, agreed on behalf of his bank to buy the entire issue in order to help the local economy.
Construction
Construction began on January 5, 1933. The project cost more than $35 million ($610 million in 2023 dollars), and was completed ahead of schedule and $1.3 million under budget (equivalent to $28.9 million today). The Golden Gate Bridge construction project was carried out by the McClintic-Marshall Construction Co., a subsidiary of Bethlehem Steel Corporation founded by Howard H. McClintic and Charles D. Marshall, both of Lehigh University.
Strauss remained head of the project, overseeing day-to-day construction and making some groundbreaking contributions. A graduate of the University of Cincinnati, he placed a brick from his alma mater's demolished McMicken Hall in the south anchorage before the concrete was poured.
Strauss also innovated the use of movable safety netting beneath the men working, which saved many lives. Nineteen men saved by the nets over the course of the project formed the Half Way to Hell Club. Nonetheless, eleven men were killed in falls, ten on February 17, 1937, when a scaffold (secured by undersized bolts) with twelve men on it fell into and broke through the safety net; two of the twelve survived the 200-foot (61 m) fall into the water.
The Round House Café diner was then included in the southeastern end of the Golden Gate Bridge, adjacent to the tourist plaza which was renovated in 2012. The Round House Café, an Art Deco design by Alfred Finnila completed in 1938, has been popular throughout the years as a starting point for various commercial tours of the bridge and an unofficial gift shop. The diner was renovated in 2012 and the gift shop was then removed as a new, official gift shop has been included in the adjacent plaza.
During the bridge work, the Assistant Civil Engineer of California Alfred Finnila had overseen the entire iron work of the bridge as well as half of the bridge's road work.
Contributors
Plaque of the major contributors to the Golden Gate Bridge lists contractors, engineering-staff, directors and officers:
Contractors
- Foundations - Pacific Bridge Company
- Anchorages - Barrett & Hilp
- Structural steel - Main span - Bethlehem Steel Company Incorporated
- Approach steel - J.H. Pomeroy & Company Incorporated - Raymond Concrete Pile Company
- Cables - John A. Roebling's Sons Company
- Electrical work - Alta Electric and Mechanical Company Incorporated
- Bridge deck - Pacific Bridge Company
- Presidio Approach Roads and Viaducts - Easton & Smith
- Toll Plaza - Barrett & Hilp
Engineering staff
- Chief engineer - Joseph B. Strauss
- Principal assistant engineer - Clifford E. Paine
- Resident engineer - Russell Cone
- Assistant engineer - Charles Clarahan Jr., Dwight N. Wetherell
- Consulting engineer - O.H. Ammann, Charles Derleth Jr., Leon S. Moisseiff
- Consulting traffic engineer - Sydney W. Taylor Jr.
- Consulting architect - Irving F. Morrow
- Consulting geologist - Andrew C. Lawson, Allan E. Sedgwick
Directors
- San Francisco - William P. Filmer, Richard J. Welch, Warren Shannon, Hugo D. Newhouse, Arthur M. Brown Jr., John P. McLaughlin, William D. Hadeler, C.A. Henry, Francis V. Keesling, William P. Stanton, George T. Cameron
- Marin County - Robert H. Trumbull, Harry Lutgens
- Napa County - Thomas Maxwell
- Sonoma County - Frank P. Doyle, Joseph A. McMinn
- Mendocino County - A. R. O'Brien
- Del Norte County - Henry Westbrook Jr., Milton M. McVay
Officers
- President - William P. Filmer
- Vice President - Robert H. Trumbull
- General manager - James Reed, Alan McDonald
- Chief engineer - Joseph B. Strauss
- Secretary - W. W. Felt Jr.
- Auditor - Roy S. West, John R. Ruckstell
- Attorney - George H. Harlan
Torsional bracing retrofit
On December 1, 1951, a windstorm revealed swaying and rolling instabilities of the bridge, resulting in its closure. In 1953 and 1954, the bridge was retrofitted with lateral and diagonal bracing that connected the lower chords of the two side trusses. This bracing stiffened the bridge deck in torsion so that it would better resist the types of twisting that had destroyed the Tacoma Narrows Bridge in 1940.
Bridge deck replacement (1982–1986)
The original bridge used a concrete deck. Salt carried by fog or mist reached the rebar, causing corrosion and concrete spalling. From 1982 to 1986, the original bridge deck, in 747 sections, was systematically replaced with a 40% lighter, and stronger, steel orthotropic deck panels, over 401 nights without closing the roadway completely to traffic. The roadway was also widened by two feet, resulting in outside curb lane width of 11 feet, instead of 10 feet for the inside lanes. This deck replacement was the bridge's greatest engineering project since it was built and cost over $68 million.
Opening festivities, and 50th and 75th anniversaries
The bridge-opening celebration in 1937 began on May 27 and lasted for one week. The day before vehicle traffic was allowed, 200,000 people crossed either on foot or on roller skates. On opening day, Mayor Angelo Rossi and other officials rode the ferry to Marin, then crossed the bridge in a motorcade past three ceremonial "barriers," the last a blockade of beauty queens who required Joseph Strauss to present the bridge to the Highway District before allowing him to pass. An official song, "There's a Silver Moon on the Golden Gate," was chosen to commemorate the event. Strauss wrote a poem that is now on the Golden Gate Bridge entitled "The Mighty Task is Done." The next day, President Franklin D. Roosevelt pushed a button in Washington, D.C. signaling the official start of vehicle traffic over the Bridge at noon. Weeks of civil and cultural activities called "the Fiesta" followed. A statue of Strauss was moved in 1955 to a site near the bridge.
As part of the fiftieth anniversary celebration in 1987, the Golden Gate Bridge district again closed the bridge to automobile traffic and allowed pedestrians to cross it on May 24. This Sunday morning celebration attracted 750,000 to 1,000,000 people, and ineffective crowd control meant the bridge became congested with roughly 300,000 people, causing the center span of the bridge to flatten out under the weight. Although the bridge is designed to flex in that way under heavy loads, and was estimated not to have exceeded 40% of the yielding stress of the suspension cables, bridge officials stated that uncontrolled pedestrian access was not being considered as part of the 75th anniversary on Sunday, May 27, 2012, because of the additional law enforcement costs required "since 9/11."
- A pedestrian poses at the old railing on opening day, 1937.
- Opening of the Golden Gate Bridge
- Official invitation to the opening of the bridge. This copy was sent to the City of Seattle.
Structural specifications
Until 1964, the Golden Gate Bridge had the longest suspension bridge main span in the world, at 4,200 feet (1,280 m). Since 1964 its main span length has been surpassed by eighteen 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 abutment to 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 miles (130,000 km). Each of the bridge's two towers has approximately 600,000 rivets.
In the 1960s, when the Bay Area Rapid Transit system (BART) was being planned, the engineering community had conflicting opinions about the feasibility of running train tracks north to Marin County over the bridge. In June 1961, consultants hired by BART completed a study that determined the bridge's suspension section was capable of supporting service on a new lower deck. In July 1961, one of the bridge's consulting engineers, Clifford Paine, disagreed with their conclusion. In January 1962, due to more conflicting reports on feasibility, the bridge's board of directors appointed an engineering review board to analyze all the reports. The review board's report, released in April 1962, concluded that running BART on the bridge was not advisable.
Aesthetics
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 Morrow because 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 maintained by 38 painters who touch up the paintwork where it becomes seriously corroded. The ongoing maintenance task of painting the bridge is continuous.
- A view of the Golden Gate Bridge from the Marin Headlands on a foggy morning at sunrise
- View of Marin from the south tower
- Top of the south tower
Traffic
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 moved several 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 to 2015, opposing traffic was separated by small, plastic pylons; during that time, there were 16 fatalities resulting from 128 head-on collisions. To improve safety, the speed limit on the Golden Gate Bridge was reduced from 50 to 45 mph (80 to 72 km/h) on October 1, 1983. Although there had been discussion concerning the installation of a movable barrier since the 1980s, only in March 2005 did the Bridge Board of Directors commit to finding funding to complete the $2 million study required prior to the installation of a movable median barrier. Installation of the resulting barrier was completed on January 11, 2015, following a closure of 45.5 hours to private vehicle traffic, the longest in the bridge's history. The new barrier system, including the zipper trucks, cost approximately $30.3 million to purchase and install.
The bridge carries about 112,000 vehicles per day according to the Golden Gate Bridge Highway and Transportation District.
Usage and tourism
See also: Golden Gate National Recreation AreaThe bridge is popular with pedestrians and bicyclists, and was built with walkways on either side of the six vehicle traffic lanes. Initially, they were separated from the traffic lanes by only a metal curb, but railings between the walkways and the traffic lanes were added in 2003, primarily as a measure to prevent bicyclists from falling into the roadway. The bridge was designated as part of U.S. Bicycle Route 95 in 2021.
The main walkway is on the eastern side, and is open for use by both pedestrians and bicycles in the morning to mid-afternoon during weekdays (5:00 a.m. to 3:30 p.m.), and to pedestrians only for the remaining daylight hours (until 6:00 p.m., or 9:00 p.m. during DST). The eastern walkway is reserved for pedestrians on weekends (5:00 a.m. to 6:00 p.m., or 9:00 p.m. during DST), and is open exclusively to bicyclists in the evening and overnight, when it is closed to pedestrians. The western walkway is open only for bicyclists and only during the hours when they are not allowed on the eastern walkway.
Bus service across the bridge is provided by one public transportation agency, Golden Gate Transit, which runs numerous bus lines throughout the week. The southern end of the bridge, near the toll plaza and parking lot, is also accessible daily from 5:30 a.m. to midnight by San Francisco Muni line 28. Muni formerly offered Saturday and Sunday service across the bridge on the Marin Headlands Express bus line, but this was indefinitely suspended due to the COVID-19 pandemic. The Marin Airporter, a private company, also offers service across the bridge between Marin County and San Francisco International Airport.
A visitor center and gift shop, originally called the "Bridge Pavilion" (since renamed the "Golden Gate Bridge Welcome Center"), is located on the San Francisco side of the bridge, adjacent to the southeast parking lot. It opened in 2012, in time for the bridge's 75th-anniversary celebration. A cafe, outdoor exhibits, and restroom facilities are located nearby. On the Marin side of the bridge, only accessible from the northbound lanes, is the H. Dana Bower Rest Area and Vista Point, named after the first landscape architect for the California Division of Highways.
Lands and waters under and around the bridge are homes to varieties of wildlife such as bobcats, harbor seals, and sea lions. Three species of cetaceans (whales) that had been absent in the area for many years have shown recent recoveries/(re)colonizations in the vicinity of the bridge; researchers studying them have encouraged stronger protections and recommended that the public watch them from the bridge or from land, or use a local whale watching operator.
Tolls
Current toll rates
Tolls are only collected from southbound traffic at the toll plaza on the San Francisco side of the bridge. All-electronic tolling has been in effect since 2013, and drivers may either pay using the FasTrak electronic toll collection device, using the license plate tolling program, or via a one time payment online. Effective July 1, 2025 (2025-07-01), the regular toll rate for passenger cars is $9.50, with FasTrak users paying a discounted toll of $9.25. During peak traffic hours, carpool vehicles carrying three or more people, or motorcycles may pay a discounted toll of $7.25 if they have FasTrak and use the designated carpool lane. Drivers must pay within 48 hours after crossing the bridge or they will be sent a toll violation invoice. The toll violation penalty is $10.25.
Historical toll rates
When the Golden Gate Bridge opened in 1937, the toll was 50 cents per car (equivalent to $10.6 in 2023), collected in each direction. In 1950 it was reduced to 40 cents each way ($5.07 in 2023), then lowered to 25 cents in 1955 ($2.84 in 2023). In 1968, the bridge was converted to only collect tolls from southbound traffic, with the toll amount reset back to 50 cents ($4.38 in 2023).
From May 1937 until December 1970, pedestrians were charged a toll of 10 cents for bridge access via turnstiles on the sidewalks.
The last of the construction bonds were retired in 1971, with $35 million (equivalent to $263M in 2023) in principal and nearly $39 million ($293M in 2023) in interest raised entirely from bridge tolls. Tolls continued to be collected and subsequently incrementally raised; in 1991, the toll was raised a dollar to $3.00 (equivalent to $6.71 in 2023).
The bridge began accepting tolls via the FasTrak electronic toll collection system in 2002, with $4 tolls for FasTrak users and $5 for those paying cash (equivalent to $6.78 and $8.47 respectively in 2023). In November 2006, the Golden Gate Bridge, Highway and Transportation District recommended a corporate sponsorship program for the bridge to address its operating deficit, projected at $80 million over five years. The District promised that the proposal, which it called a "partnership program", would not include changing the name of the bridge or placing advertising on the bridge itself. In October 2007, the Board unanimously voted to discontinue the proposal and seek additional revenue through other means, most likely a toll increase. The District later increased the toll amounts in 2008 to $5 for FasTrak users and $6 to those paying cash (equivalent to $7.08 and $8.49 respectively in 2023).
In an effort to save $19.2 million over the following 10 years, the Golden Gate District voted in January 2011 to eliminate all toll takers by 2012 and use only open road tolling. Subsequently, this was delayed and toll taker elimination occurred in March 2013. The cost savings have been revised to $19 million over an eight-year period. In addition to FasTrak, the Golden Gate Transportation District implemented the use of license plate tolling (branded as "Pay-by-Plate"), and also a one-time payment system for drivers to pay before or after their trip on the bridge. Twenty-eight positions were eliminated as part of this plan.
On April 7, 2014, the toll for users of FasTrak was increased from $5 to $6 (equivalent to $7.72 in 2023), while the toll for drivers using either the license plate tolling or the one time payment system was raised from $6 to $7 (equivalent to $9.01 in 2023). Bicycle, pedestrian, and northbound motor vehicle traffic remain toll free. For vehicles with more than two axles, the toll rate was $7 per axle for those using license plate tolling or the one time payment system, and $6 per axle for FasTrak users. During peak traffic hours, carpool vehicles carrying two or more people and motorcycles paid a discounted toll of $4 (equivalent to $5.15 in 2023); drivers must have had Fastrak to take advantage of this carpool rate. The Golden Gate Transportation District then increased the tolls by 25 cents in July 2015, and then by another 25 cents each of the next three years.
In March 2019, the Golden Gate Transportation District approved a plan to implement 35-cent annual toll increases through 2023, except for the toll-by-plate program which will increase by 20 cents per year. The district then approved another plan in March 2024 to implement 50-cent annual toll increases through 2028.
Effective date | FasTrak | Toll-by-plate | Toll invoice | Carpool | Multi-axle vehicle |
---|---|---|---|---|---|
April 7, 2014 | $6.00 | $7.00 | $4.00 | $7.00 per axle | |
July 1, 2015 | $6.25 | $7.25 | $4.25 | $7.25 per axle | |
July 1, 2016 | $6.50 | $7.50 | $4.50 | $7.50 per axle | |
July 1, 2017 | $6.75 | $7.75 | $4.75 | $7.75 per axle | |
July 1, 2018 | $7.00 | $8.00 | $5.00 | $8.00 per axle | |
July 1, 2019 | $7.35 | $8.20 | $8.35 | $5.35 | $8.35 per axle |
July 1, 2020 | $7.70 | $8.40 | $8.70 | $5.70 | $8.70 per axle |
July 1, 2021 | $8.05 | $8.60 | $9.05 | $6.05 | $9.05 per axle |
July 1, 2022 | $8.40 | $8.80 | $9.40 | $6.40 | $9.40 per axle |
July 1, 2023 | $8.75 | $9.00 | $9.75 | $6.75 | $9.75 per axle |
July 1, 2024 | $9.25 | $9.50 | $10.25 | $7.25 | $10.25 per axle |
July 1, 2025 | $9.75 | $10.00 | $10.75 | $7.75 | $10.75 per axle |
July 1, 2026 | $10.25 | $10.50 | $11.25 | $8.25 | $11.25 per axle |
July 1, 2027 | $10.75 | $11.00 | $11.75 | $8.75 | $11.75 per axle |
July 1, 2028 | $11.25 | $11.50 | $12.25 | $9.25 | $12.25 per axle |
Congestion pricing
Further information: San Francisco congestion pricingIn March 2008, the Golden Gate Bridge District board approved a resolution to start congestion pricing at the Golden Gate Bridge, charging higher tolls during the peak hours, but rising and falling depending on traffic levels. This decision allowed the Bay Area to meet the federal requirement to receive $158 million in federal transportation funds from USDOT Urban Partnership grant. As a condition of the grant, the congestion toll was to be in place by September 2009.
In August 2008, transportation officials ended the congestion pricing program in favor of varying rates for metered parking along the route to the bridge including on Lombard Street and Van Ness Avenue.
Issues
Protests and stunts
This section may contain an excessive amount of intricate detail that may interest only a particular audience. Please help by spinning off or relocating any relevant information, and removing excessive detail that may be against Misplaced Pages's inclusion policy. (May 2024) (Learn how and when to remove this message) |
In August 1977, three California Polytechnic State University students climbed the cables of the Golden Gate Bridge.
In May 1981, Dave Aguilar climbed the South Tower of the Golden Gate Bridge to protest offshore oil drilling.
On November 24, 1996, environmentalists, including Woody Harrelson, were arrested after scaling the Golden Gate Bridge.
In 1997, Quentin Kopp authored a bill, that was signed into law by Pete Wilson that increased the maximum fine for trespassing on the bridge from $1,000 to $10,000 and doubled maximum jail time from six months to a year.
In July 2001, approximately 100 protesters gathered to demand an end to the U.S. Navy's bombing activities on the Puerto Rican island of Vieques.
During the 2008 Tibetan unrest, three pro-Tibet activists scaled the bridge's vertical cables in April 2008 to protest the arrival of the Olympic torch in the city. The activists hung banners to denounce China's crackdown on Tibet. The incident resulted in the closure of a northbound lane of the bridge and was part of a wave of protests across multiple cities against China's policies in Tibet.
On January 20, 2017, thousands of people held hands as a human chain on the sidewalk across the Golden Gate Bridge as Donald Trump took the oath of office.
On June 6, 2020, protesters shut down traffic on the Golden Gate Bridge in a demonstration against police brutality following the murder of George Floyd. The protest, originally confined to the pedestrian path, spilled into traffic lanes as activists knelt for eight minutes and 46 seconds, symbolizing the time a police officer knelt on Floyd's neck. Law enforcement was unable to redirect protesters, causing a complete closure of the bridge to traffic during the demonstration. This event was part of nationwide protests, with San Francisco lifting its curfew to allow continued gatherings in support of the movement.
Approximately 5,000 Armenian-Americans marched across the Golden Gate Bridge in October 2020 to raise awareness about an illegal blockade during the Nagorno-Karabakh conflict and to urge the US government to halt arms shipments to Turkey and Azerbaijan. Organized by the Armenian Youth Federation (AYF) San Francisco “Rosdom” Chapter, the demonstration aimed at informing Bay Area citizens about the violence against Armenians.
In June 2021, activists from the Sunrise Movement marched over 250 miles to advocate for climate action, culminating in a demonstration on the Golden Gate Bridge. Activists called for urgent measures to combat climate change, including the passage of President Joe Biden's American Jobs Plan, which includes funding for green energy jobs.
On September 30, 2021, protesters blocked traffic, urging Senate Democrats to address immigration reform and advocate for citizenship for undocumented immigrants and Haitian refugees. Five organizers, including an undocumented individual, were arrested during the demonstration.
In November 2021, a protest against government-mandated COVID-19 vaccinations led to a chain-reaction crash at the bridge. During the demonstration, a vehicle collision occurred involving two California Highway Patrol officers and three Golden Gate Bridge employees. The individuals were hospitalized with not life-threatening injuries.
Protests over the death of Mahsa Amini occurred on September 26, 2022. Over 1,000 protesters gathered at the Golden Gate Bridge Welcome Center to demonstrate against the Islamic Republic of Iran and its morality police following the death of Amini, who had been detained after an encounter with Tehran police, leading to her subsequent coma and death. The protest attendees voiced demands for women's rights and freedom, displayed signs and carrying former imperial state Iranian flags. The event drew attention globally, sparking solidarity protests in Iran, Greece, England, and France.
On February 14, 2024, a pro-Palestinian protest temporarily halted traffic on the Golden Gate Bridge. Around 20 protesters gathered on the bridge, displaying banners condemning the Israeli invasion of the Gaza Strip, and calling for an end to U.S. military support to Israel. The demonstration caused a standstill in both northbound and southbound traffic.
Pro-Palestinian protesters staged demonstrations across the bridge in April 2024 in response to the ongoing Israel-Hamas War. The protests aimed to raise awareness and show solidarity with Gaza during a period of conflict, with some protestors chaining themselves to vehicles to impede traffic flow. Major highways and bridges were temporarily blocked, resulting in arrests by law enforcement.
Suicides
Main article: Suicides at the Golden Gate Bridge As a suicide prevention initiative, signs on the Golden Gate Bridge promote special telephones that connect to crisis hotlines, as well as 24/7 crisis text lines.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 hypothermia in 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 (6.1 m) from the bridge and supported by structural steel 20 feet under the walkway, began to be installed in April 2017. Construction was first estimated to take approximately four years at a cost of over $200 million. Installation of the nets was completed in January 2024. The metal nets are visible from the pedestrian walkways and are expected to be painful to land on.
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 anemometer placed midway between the two towers on the west side of the bridge has been used to measure wind speeds. Another anemometer was placed on one of the towers.
As part of the retrofitting of the bridge and installation of the suicide barrier, starting in 2019 the railings on the west side of the pedestrian walkway were replaced with thinner, more flexible slats in order to improve the bridge's aerodynamic tolerance of high wind to 100 mph (161 km/h). Starting in June 2020, reports were received of a loud hum, heard across San Francisco and Marin County, produced by the new railing slats when a strong west wind was blowing. The sound had been predicted from wind tunnel tests, but not included in the environmental impact report; ways of ameliorating it are being considered. An independent engineering analysis of a 2020 sound recording of the tones concludes that the singing noise comprises a variety of Aeolian tones (the sound produced by air flowing past a sharp edge), arising in this case from the ambient wind blowing across metal slats of the newly installed sidewalk railings. The tones observed were frequencies of 354, 398, 439 and 481 Hz, corresponding to the musical notes F4, G4, A4, and B4; these notes form an F Lydian Tetrachord.
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 million program was initiated to improve the structure's ability to withstand such an event with only minimal (repairable) damage. A custom-built electro-hydraulic synchronous lift system for construction of temporary support towers and a series of intricate lifts, transferring the loads from the existing bridge onto the temporary supports, were completed with engineers from Balfour Beatty and Enerpac, without disrupting day-to-day commuter traffic. Although the retrofit was initially planned to be completed in 2012, as of May 2017 it was expected to take several more years.
The former elevated approach to the Golden Gate Bridge through the San Francisco Presidio, known as Doyle Drive, dated to 1933 and was named after Frank P. Doyle. Doyle, the president of the Exchange Bank in Santa Rosa and son of the bank's founder, was the man who, more than any other person, made it possible to build the Golden Gate Bridge. The highway carried about 91,000 vehicles each weekday between downtown San Francisco and the North Bay and points north. The road was deemed "vulnerable to earthquake damage", had a problematic 4-lane design, and lacked shoulders; a San Francisco County Transportation Authority study recommended that it be replaced. Construction on the $1 billion replacement, temporarily known as the Presidio Parkway, began in December 2009. The elevated Doyle Drive was demolished on the weekend of April 27–30, 2012, and traffic used a part of the partially completed Presidio Parkway, until it was switched onto the finished Presidio Parkway on the weekend of July 9–12, 2015. As of May 2012, an official at Caltrans said there is no plan to permanently rename the portion known as Doyle Drive.
Gallery
A comparison of the side elevation of the Golden Gate Bridge to the side elevations of some of the most notable bridges around the world on the same scale (click for interactive version) Panorama of San Francisco with two bridges (Western section of Bay Bridge in the left background), Coit Tower (in background to the left of north tower), and Fort Mason (on the San Francisco waterfront in the background behind the north tower) from Marin Panorama of the Golden Gate Bridge at night, with San Francisco in the background
See also
- The Bridge, a 2006 documentary on suicides from the Bridge
- Golden Gate Bridge in popular culture
- List of bridges documented by the Historic American Engineering Record in California
- List of Historic Civil Engineering Landmarks
- List of longest suspension bridge spans
- List of San Francisco Designated Landmarks
- List of tallest bridges
- San Francisco–Oakland Bay Bridge
- Suicide bridge
References
- "About Us". goldengate.org. Golden Gate Bridge, Highway and Transportation District. Retrieved November 27, 2017.
- Golden Gate Bridge at Structurae
- ^ Denton, Harry et al. (2004) "Lonely Planet San Francisco" Lonely Planet, United States, ISBN 1-74104-154-6
- "Annual Vehicle Crossings and Toll Revenues". Golden Gate Bridge, Highway and Transportation District. Retrieved January 5, 2023.
- "Golden Gate Bridge". Office of Historic Preservation, California State Parks. Retrieved October 8, 2012.
- "City of San Francisco Designated Landmarks". City of San Francisco. Archived from the original on March 25, 2014. Retrieved October 21, 2012.
- "American Society of Civil Engineers Seven Wonders". Asce.org. July 19, 2010. Archived from the original on August 2, 2010. Retrieved August 30, 2010.
- "Key Dates - Moments & Events | Golden Gate". www.goldengate.org.
- Levine, Dan (1993). Frommer's comprehensive travel guide, California '93. New York: Prentice Hall Travel. p. 118. ISBN 0-671-84674-4.
- McGrath, Nancy (1985). Frommer's 1985-86 guide to San Francisco. New York: Frommer/Pasmantier Pub. p. 10. ISBN 0-671-52654-5.
- "Golden Gate Bridge". history.com. 2019. Retrieved June 29, 2020.
- ^ "Two Bay Area Bridges". US Department of Transportation, Federal Highway Administration. Retrieved March 9, 2009.
- Fimrite, Peter (April 28, 2005). "Ferry tale – the dream dies hard: 2 historic boats that plied the bay seek buyer – anybody". San Francisco Chronicle. Retrieved October 31, 2007.
- Harlan, George H. (1967). San Francisco Bay Ferryboats. Howell-North Books.
- ^ Span, Guy (May 4, 2002). "So Where Are They Now? The Story of San Francisco's Steel Electric Empire". Bay Crossings. Archived from the original on October 23, 2007. Retrieved October 31, 2007.
- "Golden Gate Bridge War on Ferries". The Sausalito Historical Society. September 25, 2019. Retrieved August 9, 2023.
- ^ Sigmund, Pete (2006). "The Golden Gate: 'The Bridge That Couldn't Be Built'". Construction Equipment Guide. Archived from the original on December 16, 2019. Retrieved May 31, 2007.
- P. L. Barnard; D. M. Hanes; D. M. Rubin; R. G. Kvitek (July 18, 2006). "Giant Sand Waves at the Mouth of San Francisco Bay" (PDF). Eos. 87 (29): 285. Bibcode:2006EOSTr..87..285B. doi:10.1029/2006EO290003. ISSN 0096-3941. Archived from the original (PDF) on June 18, 2018. Retrieved April 22, 2012.
- ^ Owens, T.O. (2001). The Golden Gate Bridge. The Rosen Publishing Group. ISBN 0-8239-5016-6.
- ^ "The American Experience:People & Events: Joseph Strauss (1870–1938)". Public Broadcasting Service. Archived from the original on November 17, 2007. Retrieved November 7, 2007.
- ^ "Engineering the Design - The History of the Design and Construction | Golden Gate". June 9, 2023. Archived from the original on June 9, 2023. Retrieved September 25, 2023.
{{cite web}}
: CS1 maint: bot: original URL status unknown (link) - "Bridging the Bay: Bridges That Never Were". UC Berkeley Library. 1999. Archived from the original on July 18, 2006. Retrieved April 13, 2006.
- Miller, John B. (2002) "Case Studies in Infrastructure Delivery" Springer, ISBN 0-7923-7652-8.
- Gudde, Erwin G. (1949). California Place Names. Berkeley, California: University of California Press. p. 130. OCLC 37647557.
- "Special District Formed – Golden Gate Bridge and Highway District". Archived from the original on January 27, 2015. Retrieved January 17, 2015.
- ^ "People and Events: Joseph Strauss (1870–1938)". Public Broadcasting Service. Archived from the original on November 17, 2007. Retrieved December 12, 2007.
- "Golden Gate Bridge Design". goldengatebridge.org. Golden Gate Bridge, Highway and Transportation District. Archived from the original on December 10, 2017. Retrieved November 27, 2017.
- "Irving Morrow | American Experience | PBS". www.pbs.org. Retrieved October 5, 2019.
- ^ "American Experience:Leon Moisseiff (1872–1943)". Public Broadcasting Service. Archived from the original on November 17, 2007. Retrieved November 7, 2007.
- Billah, K.; Scanlan, R. (1991). "Resonance, Tacoma Narrows Bridge Failure" (PDF). American Journal of Physics. Undergraduate Physics Textbooks. 59 (2): 118–124. doi:10.1119/1.16590. Archived (PDF) from the original on September 19, 2000.
- "The Point of Fort Point: A Brief History". Golden Gate Bridge Highway and Transportation District. Archived from the original on November 21, 2018. Retrieved November 2, 2018.
- ^ "The American Experience:Charles Alton Ellis (1876–1949)". Public Broadcasting Service. Archived from the original on March 27, 2009. Retrieved November 7, 2007.
- Jackson, Donald C. (1995) "Great American Bridges and Dams" John Wiley and Sons, ISBN 0-471-14385-5
- "Bridging the Bay: Bridges That Never Were". UC Berkeley Library. Retrieved February 19, 2007.
- Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.
- "72 years ago today, iconic Golden Gate Bridge finished construction ahead of schedule & $1.3 million under budget". May 27, 2009. Retrieved April 10, 2013.
- "Life On The American Newsfront: Ten Men Fall To Death From Golden Gate Bridge". Life. March 1, 1937. pp. 20–21.
- "Frequently Asked Questions about the Golden Gate Bridge". Golden Gate Bridge, Highway and Transportation District. Archived from the original on November 5, 2007. Retrieved November 7, 2007.
- ^ King, John (May 25, 2012). "Golden Gate Bridge's Plaza Flawed but Workable". San Francisco Chronicle.
- ^ Kligman, David (May 25, 2012). "From Sea to Shining Sea: PG&E's Earley Joins Tribute to Golden Gate Bridge". Currents. PG&E. Archived from the original on October 22, 2013. Retrieved April 12, 2013.
- San Francisco Examiner. May 27, 1982. No. 147, p. 2. Golden Gate Bridge – 45th anniversary of completion.
- Castaldo, Gaetano (October 24, 2013), Plaque of the major Contributors to the Golden Gate Bridge, San Francisco, California, USA, retrieved June 8, 2022
- Van Niekerken, Bill (June 13, 2016). "When the Golden Gate Bridge was closed by a violent storm". Retrieved August 2, 2020.
- "Resisting the Twisting". Golden Gate Bridge Highway and Transportation District. Retrieved July 29, 2019.
- "Bridge Deck Replacement (1982–1986)". goldengate.org. Retrieved August 2, 2020.
- "Bay Bridge fete opens today". Lodi News-Sentinel. (California). United Press. May 27, 1937. p. 1.
- "Thousands rush to Golden Gate". Spokesman-Review. (Spokane, Washington). Associated Press. May 28, 1937. p. 1.
- Tung, Stephen (May 23, 2012). "The Day the Golden Gate Bridge Flattened". San Jose Mercury News. Retrieved January 17, 2016.
- "1 million celebrate a symbol". Eugene Register-Guard. (Oregon). Associated Press. May 25, 1987. p. 1A.
- "Human gridlock brought Golden Gate Bridge to a standstill". Lodi News-Sentinel. (California). UPI. May 26, 1987. p. 3.
- Pollalis, Spiro N.; Otto, Caroline (1990). "The Golden Gate Bridge" (PDF). Harvard Design School. Archived from the original (PDF) on October 11, 2011. Retrieved April 3, 2011.
- McCarthy, Terrence (May 26, 1987). "Golden Gate Crowd Made Bridge Bend". The New York Times. Retrieved April 3, 2011.
- Prado, Mark (July 23, 2010). "Golden Gate Bridge officials nix walk for 75th anniversary". Marin Independent Journal. Archived from the original on December 27, 2010. Retrieved April 3, 2011.
- "Golden Gate Festival :: Golden Gate Bridge 75th Anniversary". Golden Gate National Parks Conservancy. Retrieved March 21, 2012.
- Fowler, Geoffrey A. (May 24, 2012). "A Historian's Long View of Golden Gate Bridge". The Wall Street Journal. pp. A13C. Retrieved August 31, 2013.
- ^ "Bridge Design and Construction Statistics". goldengatebridge.org. Golden Gate Bridge, Highway and Transportation District. Archived from the original on March 4, 2011. Retrieved November 27, 2017.
- "Frequently Asked Questions about the Golden Gate Bridge: How many rivets are in each tower of the Golden Gate Bridge?" Archived August 10, 2015, at the Wayback Machine. goldengatebridge.org. Golden Gate Bridge, Highway and Transportation District. Retrieved November 5, 2018.
- "A History of BART". Retrieved November 5, 2018.
- "Rapid Transit for the San Francisco Bay Area" (PDF). LA Metro Library. Parsons Brinckerhoff / Tudor / Bechtel. Archived (PDF) from the original on September 17, 2016. Retrieved July 21, 2018.
- Prado, Mark (August 7, 2010). "Did Marin lose out on BART?". Marin Independent Journal. Retrieved May 3, 2019.
- Ammann, Othmar H.; Masters, Frank M.; Newmark, Nathan M. (April 1962). Report on Proposed Installation of Rapid Transit Trains on Golden Gate Bridge (Report). Golden Gate Bridge And Highway District. p. 8.
- Rodriguez, Joseph A.; Urban Rivalry in the San Francisco Bay Area in the 1930s (2000). "Planning". Journal of Planning Education and Research. 20: 66–76. doi:10.1177/073945600128992609. S2CID 143841247.
{{cite journal}}
: CS1 maint: numeric names: authors list (link) - ^ "Golden Gate Bridge: Construction Data". Golden Gate Bridge, Highway and Transportation District. Archived from the original on August 22, 2011. Retrieved August 20, 2007.
- Price, Lyle W. (December 15, 1965). "Golden Gate holds allure for painters". Eugene Register-Guard. (Oregon). Associated Press. p. 4B.
- Stamberg, Susan. "The Golden Gate Bridge's Accidental Color". NPR.org. NPR. Retrieved April 27, 2011.
- St. Clair, Kassia (2016). The Secret Lives of Colour. London: John Murray. p. 94. ISBN 978-1-4736-3081-9. OCLC 936144129.
- ^ "Frequently Asked Questions about the Golden Gate Bridge". Golden Gate Bridge, Highway and Transportation District. Archived from the original on August 10, 2015. Retrieved March 12, 2008.
- "Golden Gate Bridge: Construction Data: How Many Ironworkers and Painters Maintain the Golden Gate Bridge?". Golden Gate Bridge, Highway and Transportation District. 2006. Archived from the original on August 10, 2015. Retrieved April 13, 2006.
- Golden Gate Bridge, Highway and Transportation District (2018). "Painting the Bridge". goldengatebridge.org. Archived from the original on August 22, 2011. Retrieved November 24, 2019.
The Bridge is painted continuously. Painting the Bridge is an ongoing task and a primary maintenance job.
- "Toll Rates & Traffic Operations". Golden Gate Bridge, Highway and Transportation District. Archived from the original on December 7, 2013. Retrieved December 3, 2013.
- "Roadway Configuration / Reversible Lanes". Golden Gate Bridge, Highway and Transportation District. Archived from the original on December 9, 2012. Retrieved December 23, 2012.
- ^ "Additional Information – Movable Median Barrier Project". Golden Gate Bridge, Highway and Transportation District. Retrieved September 29, 2014.
- ^ "Key Dates". Research Library. Archived from the original on February 9, 2011. Retrieved December 11, 2007.
- Asimov, Nanette (January 11, 2015). "Golden Gate Bridge work finished early as barrier is installed". San Francisco Chronicle. Hearst Newspapers. Retrieved January 11, 2015.
- "Bridge Operations". Goldengate.org. The Golden Gate Bridge. Retrieved December 29, 2019.
- Lucas, Scott (July 18, 2013). "Kevin Hines Is Still Alive". Modern Luxury. Retrieved July 18, 2013.
- "U.S. Bicycle Route System Adds 2,903 Miles of New Routes in 5 States" (Press release). Adventure Cycling Association. August 9, 2021. Archived from the original on October 20, 2021. Retrieved August 19, 2021.
- The Golden Gate Bridge, Sidewalk Access for Pedestrians and Bicyclists Archived August 26, 2011, at the Wayback Machine. Goldengatebridge.org. Retrieved June 14, 2013.
- "Golden Gate Transit bus service" (PDF). Golden Gate Transit. Archived (PDF) from the original on January 5, 2007. Retrieved August 19, 2012.
- "Muni Route 28 19th Avenue". San Francisco Municipal Transportation Agency. Retrieved August 19, 2012.
- "Muni Route 76X Marin Headlands". San Francisco Municipal Transportation Agency. December 18, 2012. Retrieved April 4, 2024.
- "Service Update During COVID-19". San Francisco Municipal Transportation Agency. March 16, 2020. Retrieved April 4, 2024.
- "Marin Airporter, SFO Airport Transportation, Bus Service, Marin County, CA". Marin Airporter.
- "Site Improvements". Golden Gate Bridge 75th Anniversary. Golden Gate Bridge Highway and Transportation District. Retrieved January 12, 2015.
- "H. Dana Bowers Rest Area". California Department of Transportation. Archived from the original on May 29, 2016. Retrieved June 2, 2016.
- 2015 Named Freeways, Highways, Structures and Other Appurtenances in California (PDF). California Department of Transportation. pp. 183, 205. Archived (PDF) from the original on October 12, 2012. Retrieved June 2, 2016.
- Animals – Golden Gate National Recreation Area (U.S. National Park Service). Retrieved on July 30, 2017
- The SFGate. 2015. Whale, sea lions put on a show near Golden Gate Bridge. Retrieved on July 30, 2017
- GOLDEN GATE CETACEAN RESEARCH. Retrieved on July 30, 2017
- Keener B.. 2017. Ask The Naturalist: Why Are There Humpback Whales In the San Francisco Bay Right Now?. Retrieved on July 30, 2017
- Woodrow M.. 2017. Experts concerned about whale safety in San Francisco Bay. The ABC7. Retrieved on July 30, 2017
- "Golden Gate Bridge". www.bayareafastrak.org. CalTrans. Retrieved July 4, 2024.
- ^ "Traffic/Toll Data". Golden Gate Bridge, Highway and Transportation District. Retrieved August 20, 2021.
- Weise, Elizabeth (November 17, 2014). "Toll to walk Golden Gate Bridge? No way, says petition". USA Today. Retrieved March 23, 2024.
- Dawid, Irvin (October 26, 2014). "Bike, Pedestrian Toll on Golden Gate Bridge Survives First Vote". Planetizen. Retrieved March 23, 2024.
- Elliott, Christopher (May 7, 1991). "Singing those Golden Gate Blues". Los Angeles Times. Retrieved November 4, 2021.
- Curiel, Jonathan (October 27, 2007). "Golden Gate Bridge directors reject sponsorship proposals". San Francisco Chronicle. Retrieved October 27, 2007.
- "Partnership Program Status". Golden Gate Bridge, Highway and Transportation District. Retrieved October 27, 2007.
- Cabanatuan, Michael (January 29, 2011). "Golden Gate Bridge to eliminate toll takers". San Francisco Chronicle. Retrieved January 30, 2011.
- ^ "Golden Gate Bridge Toll-takers Reach End of the Line as New Payment System Begins". KQED. March 27, 2013. Retrieved August 20, 2021.
- ^ Cabanatuan, Michael (April 7, 2014). "Tolls for crossing Golden Gate Bridge rise $1". San Francisco Chronicle. Retrieved April 26, 2014.
- ^ Galloway, Kayla (July 1, 2019). "Golden Gate Bridge toll increase takes effect July 1". KRON-TV. Archived from the original on August 20, 2021. Retrieved August 20, 2021.
- Tolentino Galloway, Aaron (March 23, 2024). "Golden Gate Bridge toll increase approved, goes into effect this summer". KRON-TV. Archived from the original on March 26, 2024. Retrieved March 27, 2024.
- "Summary of Recommendations, February 27, 2014" (PDF). Board of Directors. Golden Gate Bridge, Highway and Transportation District. pp. 5–6. Archived (PDF) from the original on August 20, 2021. Retrieved August 20, 2021.
- "Golden Gate Bridge 5-Year Toll Increase Approved". Board of Directors. Golden Gate Bridge, Highway and Transportation District. pp. 5–6. Retrieved August 20, 2021.
- "Golden Gate Bridge District Approves New Five-Year Toll Program". Golden Gate Bridge, Highway and Transportation District. March 22, 2024. Retrieved March 27, 2024.
- Bolling, David (May 29, 2008). "GG Bridge tolls could top $7, June 11 meeting will set new rates". Sonoma Index-Tribune.
- The San Francisco Chronicle (March 19, 2008). "Congestion Pricing Approved for Golden Gate Bridge". planetizen.com. Retrieved April 3, 2008.
- Cabanatuan, Michael (March 15, 2008). "Bridge raises tolls, denies Doyle Dr. funds". The San Francisco Chronicle. Retrieved April 3, 2008.
- Cabanatuan, Michael (August 12, 2008). "Golden Gate Bridge congestion toll plan dies". San Francisco Chronicle.
- Van Niekerken, Bill (March 20, 2017). "Golden Gate Bridge stunts that have shocked the city over the years". San Francisco Chronicle. Archived from the original on March 24, 2017.
- ^ "Golden Gate Bridge stunts that have shocked the city over the years". March 20, 2017. Archived from the original on March 24, 2017.
- "Protesters Arrested at Golden Gate Bridge". Los Angeles Times. November 24, 1996.
- PEARSON, JENNIFER PELTZ AND JAKE (July 5, 2018). "Protester's climb shuts down Statue of Liberty on July 4". Santa Rosa Press Democrat. Retrieved April 18, 2024.
- "The Militant - July 23, 2001 – San Francisco protesters demand, 'U.S. Navy Out of Vieques Now!'". www.themilitant.com. Retrieved April 18, 2024.
- ABC7. "Olympic torch protesters scale Golden Gate Bridge | ABC7 San Francisco | abc7news.com". ABC7 San Francisco. Retrieved April 18, 2024.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - "Tibet protesters scale Golden Gate bridge - CNN.com". www.cnn.com. Retrieved April 18, 2024.
- "PHOTOS: Thousands gather to hold hands across Golden Gate Bridge". Archived from the original on May 25, 2023.
- "'Lead with Love': Meet the 2 Bay Area teens who organized, led massive Black Lives Matter rally on Golden Gate Bridge". KABC-TV. Retrieved April 2, 2024.
- Bellow, Noelle (2020). "Golden Gate Bridge protest was organized by teens seeking change". KRON-TV. Archived from the original on March 22, 2024. Retrieved April 2, 2024.
- Grindell, Samantha. "Thousands of protesters marched across San Francisco's Golden Gate Bridge, temporarily shutting it down to traffic". Business Insider. Retrieved April 18, 2024.
- Contributor, Guest (October 14, 2020). "Thousands March Across Golden Gate Bridge in Support of Artsakh". The Armenian Weekly. Retrieved April 18, 2024.
{{cite web}}
:|last=
has generic name (help) - staff • •, NBC Bay Area (September 11, 2023). "Bay Area's Armenian community rally in San Francisco". NBC Bay Area. Retrieved April 18, 2024.
- "Young climate activists marched 266 miles from Paradise to SF demanding change". ABC7 San Francisco. June 15, 2021. Retrieved April 18, 2024.
- Morris, By J.D. "Young climate activists head to the Golden Gate Bridge on 266-mile march from Paradise". San Francisco Chronicle. Retrieved April 18, 2024.
- Fernando, Christine. "'This injustice must stop': Protesters block Golden Gate Bridge, demand immigration reform". USA TODAY. Retrieved April 18, 2024.
- Kopan, Deepa Fernandes and Tal. "Golden Gate Bridge shutdown could signal the start of more direct activism on immigration reform". San Francisco Chronicle. Retrieved April 18, 2024.
- "5 hurt, including 2 officers, after crash at anti-vaccine protest in San Francisco". NBC News. November 12, 2021. Retrieved April 18, 2024.
- "5 People Hit, CHP Officer Hospitalized in Crash on Golden Gate Bridge During Anti-Vax Protest - CBS San Francisco". www.cbsnews.com. November 11, 2021. Retrieved April 18, 2024.
- Elassar, Alaa (September 24, 2022). "Iranian Americans are demonstrating across the US in support of protesters in Iran". CNN. Retrieved April 18, 2024.
- "Demonstrators form human chain on Golden Gate Bridge, demand justice for death of Mahsa Amini". ABC7 San Francisco. September 26, 2022. Retrieved April 18, 2024.
- "Pro-Palestinian protesters block traffic on Golden Gate Bridge in San Francisco - CBS San Francisco". CBS News. February 14, 2024.
- Flores, Dominic Fracassa, David Hernandez, Jessica. "Golden Gate Bridge briefly blocked by pro-Palestinian protesters". San Francisco Chronicle. Retrieved April 18, 2024.
{{cite news}}
: CS1 maint: multiple names: authors list (link) - "Gaza protest shuts down Golden Gate Bridge, causing gridlock on both sides of span - CBS San Francisco". CBS News. April 15, 2024.
- "38 Pro-Palestinian protesters arrested after shutdown of Golden Gate Bridge, I-880 in Oakland: CHP". ABC7 San Francisco. April 15, 2024. Retrieved April 17, 2024.
- "Gaza war protesters shut down Golden Gate Bridge, block traffic in other cities". NBC News. April 16, 2024. Retrieved April 17, 2024.
- Bone, James (October 13, 2008). "Golden Gate bridge in San Fransico [sic] gets safety net to deter suicides". The Times. Archived from the original on May 25, 2017 – via Journalisted.
- "Suspension Bridges" (PDF). snu.ac.kr. p. 5. Archived from the original (PDF) on July 12, 2003.
- ^ Branch, John (November 5, 2023). "What the Golden Gate Is (Finally) Doing About Suicides". The New York Times.
- Koopman, John (November 2, 2005). "Lethal Beauty. No easy death: Suicide by bridge is gruesome, and death is almost certain. The fourth in a seven-part series on the Golden Gate Bridge barrier debate". San Francisco Chronicle. Retrieved June 3, 2014.
- Bateson, John (September 29, 2013). "The suicide magnet that is the Golden Gate Bridge". Los Angeles Times (opinion). Archived from the original on October 9, 2013. Retrieved October 14, 2013.
- Houston, Will (February 18, 2019). "Golden Gate Bridge suicide barrier starting to take shape". Ukiah Daily Journal.
- "Suicide Barriers Going Up At Golden Gate Bridge After Over 1.5K Deaths". CBS San Francisco. CBS Broadcasting Inc. April 13, 2017. Retrieved November 27, 2017.
- Stone, J.R. (January 3, 2024). "San Francisco installs $224M net to stop suicides off Golden Gate Bridge". KGO-TV. Retrieved January 5, 2024.
- ^ Swan, Rachel (June 8, 2020). "Hear that ghostly hum on the Golden Gate Bridge? It's here to stay". San Francisco Chronicle.
- Ting, Eric (June 6, 2020). "Why the Golden Gate Bridge made strange noises with the wind Friday". San Francisco Chronicle. Archived from the original on July 5, 2020. Retrieved June 6, 2020.
- Chamings, Andrew (July 1, 2020). "Golden Gate Bridge officials look to fix 'screeching that sounds like torture'". San Francisco Chronicle.
- Tom Irvine (July 13, 2020). "Golden Gate Bridge Singing". Vibrationdata: Shock & Vibration Software & Tutorials. Retrieved December 1, 2021.
- Nolte, Carl (May 28, 2007). "70 Years: Spanning the Golden Gate: New will blend in with the old as part of bridge earthquake retrofit project". San Francisco Chronicle.
- Showing fancy foot work Archived January 23, 2021, at the Wayback Machine. Roads&Bridges (December 28, 2000).
- ^ Golden Gate Bridge Authority (May 2008). "Overview of Golden Gate Bridge Seismic Retrofit". Archived from the original on June 16, 2008. Retrieved June 21, 2008.
- Gonchar, Joann (January 3, 2005). "Famed Golden Gate Span Undergoes Complex Seismic Revamp". McGraw-Hill Construction. Retrieved June 21, 2008.
- "Costly Golden Gate Bridge Retrofit Still Years Away From Completion". May 24, 2017. Retrieved July 29, 2019.
- Presidio Parkway re-envisioning Doyle Drive. Presidio Parkway Project. Archived from the original on December 26, 2009. Retrieved May 6, 2010.
- "Doyle Drive Replacement Project". San Francisco County Transportation Authority. Archived from the original on April 26, 2010. Retrieved May 6, 2010.
- Cabanatuan, Michael (January 5, 2010). "Doyle Drive makeover will affect drivers soon". San Francisco Chronicle. Archived from the original on March 16, 2010. Retrieved May 6, 2010.
- Current Construction Activity. Presidio Parkway. Archived from the original on April 26, 2010. Retrieved May 6, 2010.
{{cite book}}
:|work=
ignored (help) - "Smith: It's wrecked, but it's still 'Doyle Drive'". Press Democrat. May 1, 2012. Archived from the original on March 13, 2014. Retrieved May 2, 2012.
Further reading
- Cassady, Stephen (1979). Spanning the Gate (Commemorative edition, 1987 ed.). Squarebooks. ISBN 978-0-916290-36-8.
- Dyble, Louise Nelson; the Golden Gate Bridge (2009). Paying the Toll: Local Power, Regional Politics. University of Pennsylvania Press. ISBN 978-0-8122-2278-4.
- Friend, Tad (October 13, 2003). "Jumpers: The fatal grandeur of the Golden Gate Bridge". The New Yorker. Vol. 79, no. 30. p. 48. Archived from the original on 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.
- Schwartz, Harvey (2015). Building the Golden Gate Bridge: A Workers' Oral History. University of Washington Press. ISBN 978-0-295-99506-9.
- Starr, Kevin (2010). Golden Gate: The Life and Times of America's Greatest Bridge. Bloomsbury Press. ISBN 978-1-59691-534-3.
- "Golden Gate Bridge Natural Frequencies". Vibrationdata.com. April 5, 2006.
External links
- Official website
- Bay Area FasTrak – includes toll information on this and the other Bay Area toll facilities
- Historic American Engineering Record (HAER) No. CA-31, "Golden Gate Bridge", 41 photos, 6 color transparencies, 1 data page, 4 photo caption pages
- "Images of the Golden Gate Bridge". San Francisco Public Library's Historical Photograph database.
- Marshal 'J' (Narrator) (1962). "The Bridge Builders". KPIX-TV. (A documentary film about the construction of the Golden Gate Bridge.)
- "San Francisco To Have World's Greatest Bridge". Popular Science. March 1931.
- "Golden Gate Bridge facts". sftodo.com. Archived from the original on February 3, 2015. Retrieved February 3, 2015. (Educational poster.)
- "End of Land Sadness – The history of Suicide and the Golden Gate Bridge". Golden Gate Bridge Movie.
Crossings of the San Francisco Bay | ||||
---|---|---|---|---|
|
World's longest suspension bridge span | ||||
---|---|---|---|---|
|
- Golden Gate Bridge
- 1937 establishments in California
- Art Deco architecture in California
- Bridges by Joseph Strauss (engineer)
- Bridges completed in 1937
- Bridges in San Francisco
- Bridges in Marin County, California
- Bridges in the San Francisco Bay Area
- Bridges of the United States Numbered Highway System
- California Historical Landmarks
- California State Route 1
- Culture of San Francisco
- Golden Gate Bridge, Highway and Transportation District
- Historic American Engineering Record in California
- Historic Civil Engineering Landmarks
- Landmarks in the San Francisco Bay Area
- Landmarks in San Francisco
- Pedestrian bridges in California
- Road bridges in California
- Roads with a reversible lane
- San Francisco Designated Landmarks
- Suspension bridges in California
- Symbols of California
- Toll bridges in California
- U.S. Route 101
- Tourist attractions in Marin County, California
- Works Progress Administration in California
- Open-spandrel deck arch bridges in the United States
- Steel bridges in the United States
- Truss arch bridges in the United States