View source for Treasure Island, San Francisco

{{Short description|Landform and neighborhood in US}}
{{Use American English|date=January 2025}}
{{Use mdy dates|date=January 2025}}
{{Infobox settlement
<!-- See the table at Template:Infobox settlement for all fields and descriptions of their usage. -->| name               = Treasure Island
| other_name         = Magic Isle{{r|McGloin}}
| settlement_type    = [[List of islands of California|Landform]] and [[Neighborhoods in San Francisco|neighborhood]]
| image_skyline      = Treasure Island Shoreline Sunset - 2025 (2).jpg
| image_caption      = The western side of Treasure Island as seen from [[Yerba Buena Island]]. Faintly visible in the distance are the [[Richmond–San Rafael Bridge]] and [[Brickyard Cove]].
| image_map          = File:San Francisco District 6 (2012).svg
| mapsize            = 250px
| map_caption        = Treasure Island is the northernmost area of San Francisco's District 6
| pushpin_map        = United States San Francisco
| pushpin_label_position = left
| pushpin_map_caption = Location within San Francisco
| pushpin_mapsize    = 220
| coordinates        = {{coord|37.825|-122.371|type:isle_region:US-CA|display=inline,title}}
| subdivision_type   = [[List of sovereign states|Country]]
| subdivision_name   = {{USA}}
| subdivision_type1  = [[U.S. state|State]]
| subdivision_name1  = {{flag|California}}
| subdivision_type2  = [[Consolidated city-county|City-county]]
| subdivision_name2  = [[San Francisco]]
| named_for          = ''[[Treasure Island]]'' (novel)
| established_title  = Constructed
| established_date   = 1936–37
| leader_title       = [[San Francisco Board of Supervisors|Supervisor]]
| leader_name        = [[Matt Dorsey]] ([[San Francisco Board of Supervisors#District 6|Dist. 6]])
| leader_title1      = [[California's 17th State Assembly district|Assemblymember]]
| leader_name1       = {{Representative|caad|17|fmt=sleader}}<ref name=swd>{{Cite web |url=http://statewidedatabase.org/gis/gis2011/index_2011.html |title=Statewide Database |publisher=UC Regents |access-date=November 5, 2014}}</ref>
| leader_title2      = [[California's 11th State Senate district|State senator]]
| leader_name2       = {{Representative|casd|11|fmt=sleader}}<ref name=swd />
| leader_title3      = [[California's 11th congressional district|U. S. rep.]]
| leader_name3       = {{Representative|cacd|11|fmt=usleader}}<ref>{{Cite GovTrack|CA|11}}</ref>
<!-- Area --------------------->| unit_pref          = US
| area_footnotes     = <ref name=data />
| area_total_sq_mi   = 0.9
| area_land_sq_mi    = 0.9
| area_water_sq_mi   = 0
| area_water_percent = 0
<!-- Elevation -------------------------->| elevation_footnotes = <!--for references: use tags-->
| elevation_min_ft   = <!-- Population ----------------------->
| population_as_of   = 2024 estimate
| population_footnotes = <ref name=data />
| population_total   = 2800
| population_density_sq_mi = auto
<!-- General information --------------->| timezone           = [[Pacific Time Zone|Pacific]]
| utc_offset         = -8
| timezone_DST       = [[Pacific Daylight Time|PDT]]
| utc_offset_DST     = -7
<!-- Area/postal codes & others -------->| postal_code_type   = [[ZIP Code]]
| postal_code        = 94130
| area_code_type     = [[North American Numbering Plan|Area codes]]
| area_code          = [[Area codes 415 and 628|415/628]]
| blank1_name        = [[Geographic Names Information System|GNIS]] feature IDs{{r|gnis}}
| blank1_info        = {{GNIS 4|236528}} (island) <br /> {{GNIS 4|2624152}} (Building 157) <br /> {{GNIS 4|2506912}} (Job Corps Ctr)
| blank_name_sec2    = Wikimedia Commons
| blank_info_sec2    = [[:Commons:Category:Treasure Island, California|Treasure Island, California]]
| website            = {{URL|http://sftreasureisland.org/ |Treasure Island Development Authority}}
| footnotes          = {{designation list|embed=yes|designation1=California|designation1_number=987<ref name=CHL />}}
}}

'''Treasure Island''' is a [[man-made island]] in [[San Francisco Bay]], and a neighborhood in the [[City and County of San Francisco]]. Built in 1936–37 for the 1939 [[Golden Gate International Exposition]], the island was named by Clyde Milner Vandeburg, part of the Fair's public relations team.<ref name="Cotter 2021">{{cite book |last1=Cotter |first1=Bill |title=San Francisco's 1939-1940 World's Fair: The Golden Gate International Exposition |date=2021 |publisher=Images of America, Arcadia Publishing |location=Charleston, South Carolina |isbn=9781467106160 |url=https://books.google.com/books?id=NLImEAAAQBAJ&q=cotter+san+francisco}}</ref>{{rp|8}} Its [[World's Fair]] site is a [[California Historical Landmark]].<ref name=CHL>{{cite web | url=http://ohp.parks.ca.gov/?page_id=21482 | title=San Francisco |work=California Historical Landmarks | author=Office of Historic Preservation |publisher= California Department of Parks and Recreation |access-date=October 26, 2013}}</ref> Buildings there have been listed on the [[National Register of Historic Places]], and the historical [[Naval Station Treasure Island]], an auxiliary air facility (for airships, blimps, dirigibles, planes and seaplanes), are designated in the [[Geographic Names Information System]].{{r|gnis}} Treasure Island is connected to [[Yerba Buena Island]], another (natural) auxiliary island of San Francisco, by a [[causeway]], creating access to [[Interstate 80 in California|Interstate 80]].

== Geography ==
[[File:Wfm yerba buena treasure islands usgs.jpg|left|thumb|268x268px|Aerial view of Treasure Island (top) and Yerba Buena Island (bottom)]]
The San Francisco census tract that includes Treasure Island extends up and down [[San Francisco Bay]] and includes a small uninhabited tip of western [[Alameda (island)|Alameda Island]].<ref>{{Cite map |map-url= http://www2.census.gov/plmap/pl_trt/st06_California/c06075_SanFrancisco/CT06075_002.pdf |map=San Francisco Census Tract Outline Map |title= Census 2000 |publisher=United States Census Bureau |access-date=December 16, 2013}}</ref> Yerba Buena and Treasure Island together have a land area{{Verify source|reason=Does "land area" include the lagoon?|date=October 2013}} of {{Convert|576.7|acre}} with – in 2010 – a total population of 2,500.<ref>[[2010 United States census]]{{Full citation needed|date=February 2014}}</ref> Treasure Island alone is 393 acres. It is connected by a {{Convert|900|ft|abbr=on}} causeway to [[Yerba Buena Island]], which in turn has on- and off-ramps to [[Interstate 80 in California|Interstate 80]] on the [[San Francisco–Oakland Bay Bridge]].

The island has a marina and a bikeway connecting to the newly completed [[Eastern span replacement of the San Francisco–Oakland Bay Bridge]]. Raised walkways circumscribe nearly the entire island along five streets (Avenue of the Palms, Perimeter Road, Avenue N, [[Pan American World Airways]] Esplanade and Clipper Cove Way, formerly known as 1st Street).{{citation needed|date=April 2024}}

== History ==
Prior to the island's construction by the [[United States government]], "Yerba Buena [[Shoals]]" of rock<ref name=McGloin>{{cite web |last=McGloin |first=John Bernard |title=Symphonies in Steel: Bay Bridge and the Golden Gate |url=http://www.sfmuseum.net/hist9/mcgloin.html |access-date=October 22, 2013 |publisher=The Virtual Museum of the City of San Francisco (SFmuseum.net)|quote=The Secretary of War approved the request that its execution be undertaken by the Army Corps of Engineers. While a group of such specialists applied their talents to the reclamation of the 'Yerba Buena Shoals', the day-by-day details were efficiently cared for by Colonel Fred Butler, U.S.A., who had years of army engineering experience behind him at this time. The fill to form Treasure Island was obtained by dredging operations; the island covered an area of {{convert|400|acre|ha|disp=x| [|]}}, {{convert|5,520|ft|m|disp=x| [|]}} long by {{convert|3,410|ft|m|disp=x| [|]}} wide.}}</ref> north of the transbay island had less than {{Convert|27|ft|abbr=on}} clearance and were a shipping hazard.{{r|treasis}} The {{Convert|400|acre|km2|adj=on}} island was constructed by emplacing {{Convert|287,000|ST}} of quarried rock in the shoals for the island/causeway perimeter rock walls (a freshwater reservoir was quarried in the rock of Yerba Buena Island).{{r|treasis}} Approximately {{Convert|23|ft}}<!--GOOGLE CALCULATOR" "20,000,000 cubic yards/535 acres in feet"--> of dredged bay sand filled the interior, was mitigated from salt, and then {{Convert|50,000|cuyd|}} topsoil{{r|treasis}} was used for planting 4,000 trees, 70,000 shrubs, and 700,000 flowering plants.{{r|McGloin}} Facility construction had begun by [[:File:D-3135 3-4-37 Yerba Buena Shoals. View easterly from top of aggregate bunkers. - NARA - 296382.jpg|March 4, 1937, when two hangars were being built.]]

{{External media
|image1=[http://www.treasureislandmuseum.org/images/ggie.jpg World's Fair montage with tower]
|video1=[https://www.google.com/#psj=1&q=youtube+1939+world%27s+fair+francisco World's Fair films (YouTube)]
}}
On February 18, 1939, the 'Magic City'<ref>{{cite book |last1=James |first1=Jack |last2=Weller |first2=Earle Vonard |title=Treasure island, "The Magic City," 1939-1940; The Story of the Golden Gate International Exposition |date=1941 |publisher=Pisani printing and publishing company |url=https://archive.org/details/treasureislandma00jamerich |access-date=August 22, 2021}}</ref> opened with a "walled city" of several fair ground courts: a central Court of Honor, a Court of the East, a Port of Trade Winds on the south and on the north: a Court of Pacifica, a 12,000-car parking lot, and the adjacent National Building, the $1.5M Federal Building, the Hall of Western States, the $800K [[Administration Building, Treasure Island|administration building]], various exhibit halls for industries (e.g., "Machinery, Science, and Vacationland"), and two {{Convert|335|x|78|ft|adj=on}} hangars planned for post-exposition use by [[Pan Am Airways]] [[flying boat]]s (notably the [[China Clipper]]) that would use the ''Port of Trade Winds Harbor'' (later referred to as ''Clipper Cove'') between the two islands.{{r|CHL}} In addition to Building 2 (Hangar 2) and Building 3 (Hangar 3), remaining exposition buildings include Building 1 ([[Streamline Moderne]] architecture) intended after the expo as the Pan Am terminal. The expo's ''Magic Carpet Great Lawn'' also remains.<ref>{{cite web |title=San Francisco Attractions |url=http://www.sf-attractions.com |work=SF-Attractions }}</ref>

A couplet from the song "[[Lydia the Tattooed Lady#Lyrics|Lydia the Tattooed Lady]]", in the [[Marx Brothers]]' 1939 film, ''[[At The Circus]]'', reads "Here is Grover Whalen unveilin' the Trylon/Over on the West Coast we have Treasure Island", citing, in the [[Trylon and Perisphere|Trylon]] and Treasure Island, two prominent features of international civic events happening that year (as the [[1939 New York World's Fair]] vied for tourist patrons with the Golden Gate International Expo).

Treasure Island and the exposition are featured in one of [[James A. FitzPatrick|James A. Fitzpatrick]]'s [[Technicolor]] travel features, "Night Descends on Treasure Island", released in 1940.<ref>{{Cite web |title=Night Descends on Treasure Island |url=https://www.tcm.com/tcmdb/title/400083/night-descends-on-treasure-island#overview |access-date=August 30, 2024 |website=Turner Classic Movies |language=en}}</ref>

=== Military base ===
{{Main|Naval Station Treasure Island}}
{{For|the nearby former Hill Park military cemetery and the [[National Register of Historic Places listings in San Francisco, California|NRHP]] "Quarters 1 Nimitz House"|Yerba Buena Island}}

[[File:Treasure Island Admin Bldg.jpg|thumb|right|Headquarters Building at US Naval Station Treasure Island]]
Treasure Island was originally intended to become a second airport for San Francisco, augmenting the existing San Francisco Municipal Airport, now [[San Francisco International Airport|SFO]]. But with war looming, the Navy moved in.

[[Naval Station Treasure Island|Naval Station (NAVSTA) Treasure Island]] began under a 1941{{r|SFN194204}} war lease as a [[United States Navy]] "reception center".<ref>{{cite web |url=http://www.sfmuseum.net/hist9/tilease.html |title=Treasure Island Accord |website=The Virtual Museum of the City of San Francisco}}</ref> On April 17, 1942, the U.S. Navy cut short an ownership dispute with the city by [[Takings Clause|seizing]] the island.{{r|SFN194204}} The Navy eventually compensated the city with $10 million in improvements to the existing airport, including reclaiming 93 acres of land, and postwar ownership of all military improvements.<ref>{{cite book|last1=Flynn|first1=William|title=Men, Money and Mud – The Story of San Francisco International Airport|date=1954|publisher=W. Flynn Publications|page=37}}</ref> (A widely cited Navy report<ref>{{cite book|last1=Hice|first1=Eric|last2=Schierling|first2=Daniel|title=Historical Study of Yerba Buena Island, Treasure Island, and their Buildings|date=1996|pages=2–17}}</ref> gave rise to the urban legend that the Navy swapped the island for land on which the city then built [[San Francisco International Airport|SFO]]. In fact, the airport had been operating in its current location since 1927.)

NAVSTA Treasure Island had a Naval Auxiliary Air Facility{{r|gnis}} in order to support helicopters, fixed wing planes, seaplanes, blimps, dirigibles and airships and a U.S.Navy/USMC electronics school. During World War II over 12,000 men a day were processed here for Pacific area assignments, and thousands more were processed for separation in the aftermath of the war.<ref>Lemon, Sue. "Treasure Island, Naval Station, 1937 – ." ''United States Navy and Marine Corps Bases, Domestic.'' Paolo E. Coletta, Editor. Westport, CT: Greenwood, 1985.</ref> The psychiatric ward of the naval base at Treasure Island was used to study and experiment on naval sailors who were being discharged for being homosexual.<ref>{{Cite book|title=Gay By the Bay: A history of Queer Culture in the San Francisco Bay Area|last=Stryker|first=Susan|publisher=Chronicle Books|year=1996|isbn=0-8118-1187-5|location=San Francisco, CA|pages=30}}</ref>

Since before the 1950s, and through the 1990s (throughout both Korean & Vietnam wars) the U.S. Navy's Naval Technical Training Center (NTTC) – Treasure Island, was operational. Multiple Maintenance Skills were part of the curriculum there, including training of Electronic Technicians (ET) in Radiation and Detection equipment (RADIAC), Communications & Radar systems, as well as training of Shipfitter and Damage Control Technicians, which also covered Nuclear Biological & Chemical (NBC) Warfare Decontamination (DECON) techniques. In 1972 a new U.S. Navy Rate consisting of the old Shipfitter and Damage Control Technician ratings was created. This new U.S. Navy rate was Hull Maintenance Technician (HT). The Navy later realized that Damage Control is such a large responsibility, it needed a rating specifically tasked with those duties, hence the reemergence of the Damage Controlman Rating in 1988.<ref>{{cite web |url=http://www.koreanwar.org/html/units/usmc/devc.htm |website=The Korean War Project |title=DEV Charlie Marine Air Support Radar Team }}</ref>

In recognition of his naval base leadership and development efforts since the inception of US [[Naval Station Treasure Island]], [[Rear Admiral]] Hugo Wilson Osterhaus Square was established in front of Building 1 [[Administration Building, Treasure Island]]. [[Medal of Honor]] and [[Navy Cross]] recipient USMC Gunnery Sgt [[John Basilone]] movie theatre Building 401 @ 680 Avenue I was established in recognition as being one of the earliest [[World War II]] heroes.

The station was identified by the [[1991 Base Realignment and Closure Commission]], and NAVSTA Treasure Island closed in 1997. Remaining military structures included Bldg. 600 @ 750 Avenue M (former Naval Firefighting School, now [[San Francisco Fire Department|SFFD]]'s Treasure Island Training Facility & Temporary SFFD Fire Station 48), Bldg. 157 (Navy [[Fire station]] 2 built circa 1942 wood-frame building which lacks modern earthquake [[Seismic retrofit]]) @ 849 Avenue D (SFFD Station 48 closed March 7, 2014, due to health hazards & excessive deferred maintenance), and the {{convert|20000|sqft|abbr=on}} Bldg. 180 by US Naval Station Way & California Ave (now a winery).<ref>{{cite web |url=http://www.winery-sf.com|title=The Winery SF |access-date=December 2, 2010}}</ref>

==== SAC radar station ====
The Treasure Island [[Radar Bomb Scoring]] Site ([[call sign]] ''San Francisco Bomb Plot'')<ref>{{cite web |author=Tim in San Mateo |date=October 2, 2002 |title=San Francisco Bomb Plot |url=https://groups.yahoo.com/neo/groups/combatevaluationgroup/conversations/topics/3945 |archive-url=https://archive.today/20131028002223/http://groups.yahoo.com/neo/groups/combatevaluationgroup/conversations/topics/3945 |url-status=dead |archive-date=October 28, 2013 |work=Yahoo! Groups |publisher= Self-published via Yahoo! |access-date=October 25, 2013}}</ref>{{unreliable source?|failed=y|date=February 2014}} was a [[:Category:Strategic Air Command radar stations|Strategic Air Command (SAC)]] automatic tracking radar facility established on the island.{{Specify|reason=Perhaps in the World's Fair parking lot?|date=October 2013}} Major Posey was the {{circa|lk=no|1948}} commander{{citation needed|date=November 2023}} of Detachment B (Capt Carlson on August 1, 1949)<ref>{{Cite report |type=Special Inquiry |last=Martin |first= Jack S. |date= September 23, 1949 |title=Report of Investigation: Project Grudge |url=http://www.bluebookarchive.org/page.aspx?pagecode=MAXW-PBB7-57&tab=1 |location=Fairfield-Suisun Air Force Base |publisher=USAF Office of Special Investigations |access-date=October 26, 2013 |quote=On 14 September 1949, Captain Howard A. Carlson,12456-A/ Detachment Commander, Detachment B, [[3903 Radar Bomb Scoring Squadron]], Treasure Island, San Francisco, California, was interviewed and stated that on 1 August 1949, two radar testing devices were released; one at approximately 1000 hours, PST, and another at 1400 hours, PST.}}</ref> which evaluated simulated bombing missions on targets in the [[San Francisco metropolitan area]] for maintaining [[Cold War]] bomber crews' proficiency. A nearby "[[Stockton Ordnance Depot#Radar statioin|Stockton Bomb Plot (Det I)]]" moved to Charlotte in 1950, and the Treasure Island unit was redesignated Detachment 13 in 1951, the year 3 other SAC detachments used [[Camp Stoneman|a nearby staging/preparation area]] for deploying [[USS General W. A. Mann (AP-112)|via the bay]] for [[Korean War]] [[ground-directed bombing]] ([[cf.]] the Sacramento Bomb Plot at a [[McClellan AFB Annex]] in 1951.){{citation needed|date=November 2023}} On October 16, 1951, Treasure Island's Det 13 was assigned under [[March AFB]]'s [[3903rd Radar Bomb Scoring Group|3933rd Radar Bomb Scoring Squadron]] before moving from the island by August 10, 1954, when the 11th RBS Squadron was activated.

[[File:Treasure island from yerba buena.jpg|thumb| left|Treasure Island beyond Yerba Buena Island's rooftops and trees, which obscure the causeway and marina. The large curved white building (right of center) is the [[Administration Building, Treasure Island|Administration Building]] (Building 1) which housed the island's museum<ref name=museum>{{cite web |url=http://www.treasureislandmuseum.org |title=Home |publisher=Treasure Island Museum Association |access-date=July 20, 2008}}</ref> 1976–97<ref>{{cite web |url=http://www.treasureislandmuseum.org/museum.html |title =The Museum and Its Collection |publisher=Treasure Island Museum Association |access-date=December 16, 2013}}</ref> (the museum association's offices returned in 2008.)<ref name=museum />]]

=== Film stages and settings ===
From the late 1980s, Treasure Island's old aircraft Hangar 2 (Building 2) and Hangar 3 (Building 3) served as [[sound stage]]s for [[film-making]] and [[television production|TV]], e.g., ''[[The Matrix]]'' ("[[bullet time]]" [[visual effect]]), ''[[Rent (film)|Rent]]'', and ''[[The Pursuit of Happyness]]''.{{Citation needed|date=July 2009}} Treasure Island was a film setting of the 1939 ''[[Charlie Chan at Treasure Island]]'', 1989 ''[[Indiana Jones and the Last Crusade]]'' (Berlin airport scene), 1995 ''[[Copycat (1995 film)|Copycat]]'' (private compound), 1997 ''[[Flubber (film)|Flubber]]'', 1998 ''[[What Dreams May Come (film)|What Dreams May Come]]'', 1998 ''[[Patch Adams (film)|Patch Adams]]'', 1998 ''[[The Parent Trap (1998 film)|The Parent Trap]]'' and 1999 ''[[Bicentennial Man (film)|Bicentennial Man]]''. An establishing shot of the 1954 ''[[The Caine Mutiny (1954 film)|The Caine Mutiny]]'' shows the main gate and Administration Bldg 1 to indicate the location of the fictitious court martial. For two years from seasons 3 to 5, Treasure Island served as the site of the ''[[Battlebots]]'' TV show. The offices and penthouse apartment sets in ''[[Nash Bridges]]'' were located on the island during the show's production (1996–2001).<ref>[http://www.lowtek.com/nash/sfpart1/ SF filming locations for Nash Bridges]</ref> The island was featured as the base of operations for the prototypers in the 2008 [[Discovery Channel]] series ''[[Prototype This!]]''. Building 180 (warehouse) and Building 111 (former firehouse) on Treasure Island served as film settings for an NBC series titled ''[[Trauma (U.S. TV series)|Trauma]]''. In 2018, Treasure Island Museum building served as a mental hospital setting for the Netflix series titled ''[[The OA]]''. ''[[MythBusters]]'' also regularly shot footage of their various experiments on the island.<ref>{{cite news |title='Mythbusters' Tackles Titanic Debate |url=https://sanfrancisco.cbslocal.com/2012/10/09/mythbusters-tackles-titanic-debate/ |access-date=July 22, 2020 |publisher=CBS News |date=October 9, 2012}}</ref><ref>{{cite news |last1=Marek |first1=Grant |title=How Treasure Island found its way into the most iconic Indiana Jones film |url=https://www.sfgate.com/movies/article/George-Lucas-Indiana-Jones-Nazi-flags-Treasure-Isl-14462515.php |access-date=July 22, 2020 |work=San Francisco Chronicle |date=September 28, 2019}}</ref>

=== Remediation and redevelopment ===
Cleanup crews spent several weeks cleaning the island's coast from the 2007 [[Cosco Busan oil spill]] just a few hundred yards from Treasure Island, and in 2009 the Navy agreed to sell the island to the city for $105 million<ref>John Cote, "[https://www.sfgate.com/realestate/article/City-to-get-Treasure-Island-for-105-million-3206898.php City to get Treasure Island for $105 million]." SF Gate, December 17, 2009</ref> as part of a redevelopment project. The [[Federal government of the United States|federal government]]'s [[Job Corps]] maintains an active presence on the {{convert|40|acres|0|abbr=on}} and 13 building facilities it took over just after the [[US Navy]] vacated the island, an area that is not part of the redevelopment. The [[Administration Building, Treasure Island|Administration Building]] (Bldg. 1) and [[Hall of Transportation, Treasure Island|Hall of Transportation]] (Bldg. 2) were listed in the [[National Register of Historic Places listings in San Francisco, California|National Register of Historic Places]] in 2008. On June 8, 2011, the [[San Francisco Board of Supervisors]] approved new neighborhood development for 19,000 people over the next 20–30 years by Wilson Meany Sullivan, Lennar Urban, and Kenwood Investments.<ref>{{cite news| url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2011/06/07/MNN71JQVU3.DTL | work=San Francisco Chronicle| first=Will | last=Kane | title=S.F. approves Treasure Island plan | date=June 8, 2011 | access-date=December 7, 2012}}</ref> The 2012–2014 US$1.5 billion [[Treasure Island Development]] project for up to 8,000 new residences, {{convert|140,000|ft2|abbr=on}} of new commercial and retail space, {{convert|100000|ft2|abbr=on}} of new office space, 3 hotels, new [[Fire station]] and {{convert|300|acres}} of parks.<ref>{{cite web |url=http://www.sftreasureisland.org/index.aspx?page=6 |title=Treasure Island: Development Project |publisher=Treasure Island Development Authority |access-date=October 11, 2012}}</ref> The island's gas station pumps and canopy were also removed (the island has a high risk of [[soil liquefaction]] and [[tsunami]] damage in an earthquake). All island natural gas, electricity, sewer and water utilities are serviced by the [[San Francisco Public Utilities Commission]]. The island experiences several [[power outage]]s per year.<ref>{{cite web |title=Power Outages on Treasure Island in San Francisco |url=https://www.treasureislandsfpoweroutages.com/ |website=Power Outages on Treasure Island in San Francisco}}</ref> Ground broke on the [[Treasure Island Ferry Terminal|island's ferry terminal]] in 2019.<ref>{{cite news |last1=Fagone and Dizikes |title=Treasure Island ferry terminal breaks ground in anticipation of 8,000 new SF homes |url=https://www.sfchronicle.com/bayarea/article/Treasure-Island-ferry-terminal-breaks-ground-in-14429457.php |access-date=September 19, 2019 |work=San Francisco Chronicle |date=September 10, 2019}}</ref>

By December 2010, Navy contractors had removed {{convert|16000|yd3|abbr=on }} of contaminated dirt from the site, "some with radiation levels 400 times the Environmental Protection Agency’s human exposure limits for topsoil."<ref>{{cite web|author=Matt Smith|title=Radiation Contamination on Treasure Island More Widespread Than Reported|url=https://ww2.kqed.org/news/2012/08/17/radiation-history-on-treasure-island-more-widespread-than-reported/|work=The Bay Citizen|date=August 17, 2012}}</ref> The contaminated dirt is to be replaced by dirt removed during construction of the fourth [[Caldecott Tunnel]] bore.<ref>{{cite news |last1=Cuff |first1=Denis |title=Caldecott Tunnel forth bore to ease traffic backups during reverse commute |url=https://www.mercurynews.com/2013/11/13/caldecott-tunnel-forth-bore-to-ease-traffic-backups-during-reverse-commute/ |access-date=December 29, 2018 |work=The Mercury News |date=November 13, 2013}}</ref> In April 2013, [[caesium-137]] levels three times higher than previously{{When|date=October 2013}} recorded were found (the island hosted "radioactive ships from Bikini Atoll atomic tests and [was] a major education center training personnel for nuclear war"<ref>{{cite web |last1=Smith |first1=Matt |last2=Mierskowski |first2=Katherine |date=April 12, 2013 |title=Soil tests find cesium, linked to cancer risk, up to 3 times higher than previously acknowledged |url=https://www.baycitizen.org/news/environment/treasure-island-soil-tests-find-nuclear-byproduct/ |work=The Bay Citizen |access-date=October 26, 2013 |quote=Until the early 1990s, the Navy operated atomic warfare training academies on Treasure Island, using instruction materials and devices that included radioactive plutonium, cesium, tritium, cadmium, strontium, krypton and cobalt. These supplies were stored at various locations around the former base, including supply depots, classrooms and vaults, and in and around a mocked-up atomic warfare training ship—the USS ''Pandemonium''.}}</ref>—the USS ''Pandemonium'' (PCDC-1)<ref>[https://www.newspapers.com/newspage/4920537/ The Sandusky Register on]. Newspapers.com (March 21, 1957). Retrieved on May 10, 2014.</ref> mockup had begun nuclear training in 1957.<ref>{{cite web |url=https://archives.sfweekly.com/sanfrancisco/toxic-acres/Content?oid=2159943 |title=Toxic Acres: The fill below Treasure Island is filled with dangerous toxins left by the Navy |author=Ron Russell |date=May 24, 2006 |website=SF Weekly |access-date=July 2, 2017}}</ref><ref>Ashley Bates, "[http://www.eastbayexpress.com/oakland/treasure-island-a-radioactive-isle/Content?oid=3328952 Radioactive Isle]." East Bay Express, September 9, 2012</ref>

== Parks ==
The parks and open space plan for Treasure Island and nearby [[Yerba Buena Island]] will create approximately 290 acres of open space and parks.<ref>{{Cite web |title=Treasure Island Development Project parks and open space component {{!}} SF.gov |url=https://www.sf.gov/information--treasure-island-development-project-parks-and-open-space-component |access-date=2025-03-27 |website=www.sf.gov}}</ref>

== Education ==
[[File:Treasure Island Elementary School Front - 2025 (4).jpg|thumb|Former Treasure Island Elementary School]]
The island is a part of the [[San Francisco Unified School District]] (SFUSD). Zoned elementary schools serving sections of the island include John Yehall Chin ([[North Beach, San Francisco|North Beach]]) and Sherman ([[Marina, San Francisco|Marina]]).<ref>"[http://www.sfusd.edu/en/assets/sfusd-staff/enroll/files/final-elementary-attendance-areas-map.pdf Final Recommendations for Elementary Attendance Areas Prepared for September 28, 2010 Board Meeting]." [[San Francisco Unified School District]]. Retrieved on April 18, 2018.</ref>

SFUSD previously operated Treasure Island [[K-8 School]]. In Spring 2004, the SFUSD board voted to close the middle school portion but keep the elementary school in operation. In its final semester of operation, it had 95 students. In December 2004, the district voted to close altogether effective the beginning of 2005. Initially, the Treasure Island Homeless Development Initiative fought to save the school, but after discipline and staffing issues occurred in 2004, the group stopped its efforts. Heather Knight of the ''[[San Francisco Chronicle]]'' wrote that year "Even people who had fought to save the school earlier this year now admit it's no longer worth saving."<ref>{{cite news|author=Knight, Heather|url=http://www.sfgate.com/bayarea/article/SAN-FRANCISCO-Board-votes-to-close-Treasure-2590724.php|title=SAN FRANCISCO / Board votes to close Treasure Island school|newspaper=[[San Francisco Chronicle]]|date=December 6, 2005|access-date=January 1, 2017}}</ref>

There is a [[charter school]], Life Learning Academy.<ref>{{cite news|last=Choi|first=Kenny|url=https://www.cbsnews.com/sanfrancisco/news/treasure-island-charter-school-helping-at-risk-teens-transform-their-lives/|title=Treasure Island charter school helping at-risk teens transform their lives|publisher=[[CBS News]]|date=March 18, 2024|access-date=2025-05-27}}</ref>

== Gallery ==
{{gallery | align=center |File:Treasure island shore north.JPG|Looking north towards the [[Marin Headlands]] from the western shore.
|File:Treasure island shore south.JPG|Looking south towards [[Yerba Buena Island]] and the [[San Francisco–Oakland Bay Bridge|Bay Bridge]] from the western shore.
|File:Treasure Isle Marina 1.JPG|Treasure Island Marina on the island's south shore
|File:SFOBB-NewEastSpanNight20140414WithMoon-IMG2772Clip.jpg|The bridge's [[Eastern span replacement of the San Francisco–Oakland Bay Bridge|new eastern span]] is best viewed from near the marina
|File:Bay Bridge and Treasure Island aerial.jpg|The San Francisco–Oakland Bay Bridge, Yerba Buena Island, Treasure Island, and San Francisco, in an afternoon aerial view looking into the sun
}}
<br />
{{wide image|SFfromTIWithBridges.jpg|1000px|align-cap=center|With good weather, the island offers views of San Francisco}}

== See also ==
* [[Naval Station Treasure Island]]
* [[Treasure Island Development]]
* {{portal-inline|San Francisco Bay Area}}

== References ==
{{Reflist|30em |refs=

<ref name=data>{{cite web|url=http://www.city-data.com/zips/94130.html |title=94130 Zip Code (San Francisco, California) Profile: homes, apartments, schools, population, income, averages, housing, demographics, location, statistics, sex offenders, residents and real estate info |publisher=City-data.com |access-date=November 7, 2012}}</ref>

<ref name=gnis>* {{Cite gnis|236528|Treasure Island (236528) |access-date=October 25, 2013}} "374929N 1222216W...374937N 1222241W"
* {{Cite gnis|2624152|San Francisco Fire Department Station 48 Treasure Island (2624152)|access-date=October 25, 2013}} "Building 157...374931N 1222226W"
* {{Cite gnis|2506912|Treasure Island Job Corps Center (2506912) |access-date=October 25, 2013 |quote=655 Avenue H}}
* {{Cite gnis|1988802|Naval Station Treasure Island (historical)|access-date=October 25, 2013}}
* {{Cite gnis|1988803|Treasure Island Naval Auxiliary Air Facility (historical) (1988803)|access-date=October 25, 2013}}</ref>

<ref name=SFN194204>{{Cite news |date=April 17, 1942 |title=Treasure Isle Goes to Navy: City Upset Over Offer, May Dispute Price |url=http://www.sfmuseum.net/hist9/tiseizure.html |via= SFmuseum.net |newspaper=The San Francisco News |access-date=October 26, 2013 }}</ref>

<ref name=treasis>{{Cite book |chapter-url=http://www.sfmuseum.net/hist5/treasis.html |via= SFmuseum.net |year=1938 |chapter=Trail Ends for '39ers |title=Almanac for Thirty-Niners |author=Workers of the Federal Writers' Project |publisher= San Francisco [[Works Progress Administration]] }}</ref>
}}

== Further reading ==
* {{cite web |title=San Francisco's housing market is so dire that the city's radioactive Treasure Island is finally getting a $6 billion makeover. Meet the residents who have lived on it for years. |language=en |date=December 16, 2019 |website=Business Insider |author=Katie Canales |url=https://www.msn.com/en-us/money/realestate/san-franciscos-housing-market-is-so-dire-that-the-citys-radioactive-treasure-island-is-finally-getting-a-dollar6-billion-makeover-meet-the-residents-who-have-lived-on-it-for-years/ss-AAK901m?ocid=spartandhp}}

== External links ==
* {{Commons category-inline|Treasure Island, San Francisco}}
* [http://treasureislandfestival.com/ Treasure Island Music Festival]
* {{webarchive |url=https://web.archive.org/web/*/http://portal.sfusd.edu/template/default.cfm?page=es.treasure_island |date=* |title=Treasure Island School }}

{{Treasure Island, San Francisco}}
{{San Francisco Attractions}}
{{Islands of the San Francisco Bay Area|state=autocollapse}}
{{San Francisco Bay watershed|state=autocollapse}}
{{Neighborhoods of San Francisco}}

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[[Category:Treasure Island, San Francisco| ]]
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