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117-739: Originally built as a more direct route to the San Francisco Bay to compete with the Western Pacific Railroad , the Cal-P segment opened months prior to the First transcontinental railroad . California Pacific was taken over by the Central Pacific, which in late 1879 completed the line from Suisun-Fairfield to Oakland via the train ferry Solano from Benicia to Port Costa. The present double-track lift bridge across

234-487: A center of innovation for the mechanization and industrialization of agricultural and food processing equipment. Though not affected as severely as San Francisco, San Jose also suffered significant damage from the 1906 San Francisco earthquake . Over 100 people died at the Agnews Asylum (later Agnews State Hospital) after its walls and roof collapsed, and San Jose High School's three-story stone-and-brick building

351-1022: A hotspot for polybrominated diphenyl ether ( PBDE ) flame retardants used to make upholstered furniture and infant care items less flammable. PBDEs have been largely phased out and replaced with alternative phosphate flame retardants. A 2019 San Francisco Estuary Institute (SFEI) study assayed a wide range of these newer flame retardant chemicals in Bay waters, bivalve California mussels ( Mytilus californianus ), and harbor seals ( Phoca vitulina ) which haul out in Corkscrew Slough on Bair Island in San Mateo County , with phosphate flame retardant contaminants such as tris(1,3-dichloro-2-propyl)phosphate (TDCPP) and triphenyl phosphate (TPhP) found at levels comparable to thresholds for aquatic toxicity. Thousands of man-made chemicals are found in Bay water, sediment, and organisms. For many of these, there

468-603: A large administrative division created by José de Gálvez , Spanish Minister of the Indies , in order to provide greater autonomy for the Spanish Empire 's borderlands. That year, King Carlos III of Spain approved an expedition by Juan Bautista de Anza to survey the San Francisco Bay Area , in order to choose the sites for two future settlements and their accompanying mission . De Anza initially chose

585-667: A major seaport . The Port of Oakland is one of the largest cargo ports in the United States, while the Port of Richmond and the Port of San Francisco provide smaller services. An additional crossing south of the Bay Bridge has long been proposed. San Francisco Bay is popular for sailors (boats, as well as windsurfing and kitesurfing ), due to consistent strong westerly/northwesterly thermally-generated winds – Beaufort force 6 (15–25 knots; 17–29 mph; 8–13 m/s)

702-418: A national land conservation organization, reported that San Jose was tied with Albuquerque and Omaha for having the 11th best park system among the 50 most populous U.S. cities. A 2011 study by Walk Score ranked San Jose the nineteenth most walkable of 50 largest cities in the United States. San Jose's trail network of 60 mi (100 km) of recreational and active transportation trails throughout

819-632: A plan to expand passenger rail operations in the area. The line hosts several Amtrak passenger routes: the Capitol Corridor , San Joaquins , Coast Starlight , and California Zephyr operate 36 trains daily over the Benicia–Martinez Bridge . Union Pacific operates numerous freight trains over the route, and BNSF has trackage rights in some segments. As of 2003 the line between Martinez and Sacramento saw 44 freight trains daily. This United States rail–related article

936-612: A political propensity toward Smart Growth planning principles. San Jose is located at 37°20′10″N 121°53′26″W  /  37.33611°N 121.89056°W  / 37.33611; -121.89056 . San Jose is located within the Santa Clara Valley , in the southern part of the Bay Area in Northern California. The northernmost portion of San Jose touches San Francisco Bay at Alviso , though most of

1053-474: A population of 7.5 million and 9.0 million respectively —the third-most populous city in California after Los Angeles and San Diego , and the 13th-most populous in the United States . Located in the center of the Santa Clara Valley on the southern shore of San Francisco Bay , San Jose covers an area of 179.97 sq mi (466.1 km ). San Jose is the county seat of Santa Clara County and

1170-440: A rapid population growth and aggressive annexation of nearby cities and communities carried out in the 1950s and 1960s. The rapid growth of the high-technology and electronics industries further accelerated the transition from an agricultural center to an urbanized metropolitan area. Results of the 1990 U.S. census indicated that San Jose had officially surpassed San Francisco as the most populous city in Northern California. By

1287-563: A safe eating advisory for fish caught in the San Francisco Bay based on levels of mercury or PCBs found in local species. The San Francisco Bay Area Water Trail is a planned system of designated trailheads designed to improve non-motorized small boat access to the bay. The California Coastal Conservancy approved funding in March 2011 to begin implementation of the water trail. San Jose, California San Jose , officially

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1404-560: A widespread distribution in the bay, with uptake in the bay's phytoplankton and contamination of its sportfish. In January 1971, two Standard Oil tankers collided in the bay, creating an 800,000-U.S.-gallon (3,000,000-liter) oil spill disaster , which spurred environmental protection of the bay. In November 2007, a ship named COSCO Busan collided with the San Francisco–Oakland Bay Bridge and spilled over 58,000 U.S. gallons (220,000 liters) of bunker fuel , creating

1521-554: Is a stub . You can help Misplaced Pages by expanding it . This article about transportation in California is a stub . You can help Misplaced Pages by expanding it . San Francisco Bay San Francisco Bay is a large tidal estuary in the U.S. state of California , and gives its name to the San Francisco Bay Area . It is dominated by the cities of San Francisco , San Jose , and Oakland . San Francisco Bay drains water from approximately 40 percent of California. Water from

1638-489: Is common on summer afternoons – and protection from large open ocean swells. Yachting and yacht racing are popular pastimes and the San Francisco Bay Area is home to many of the world's top sailors. A shoreline bicycle and pedestrian trail known as the San Francisco Bay Trail encircles the edge of the bay. The San Francisco Bay Area Water Trail , a growing network of launching and landing sites around

1755-569: Is home to one of the world's largest overseas Vietnamese populations, a Hispanic community that makes up over 40% of the city's residents, and historic ethnic enclaves such as Japantown and Little Portugal . Before the arrival of the Spanish , the area around San Jose was long inhabited by the Tamien nation of the Ohlone peoples of California . San Jose was founded on November 29, 1777, as

1872-433: Is little or no data on their impacts on the environment or human health, and they are not regulated by state or federal law. These are often referred to as "contaminants of emerging concern." The San Francisco Estuary Institute has studied these chemicals in the Bay since 2001. Scientists have identified the following most likely to have a negative impact on Bay wildlife: San Francisco Bay's profile changed dramatically in

1989-488: Is now called Drakes Bay . At the time, Drakes Bay went by the name Bahia de San Francisco and thus both bodies of water became associated with the name. Eventually, the larger, more important body of water fully appropriated the name San Francisco Bay . The first European to enter the bay is believed to have been the Spanish explorer Juan de Ayala , who passed through the Golden Gate on August 5, 1775, in his ship

2106-626: Is seen in the Central Valley . "Rain year" precipitation has ranged from 4.83 in (122.7 mm) between July 1876 and June 1877 to 30.30 in (769.6 mm) between July 1889 and June 1890, although at the current site since 1893 the range is from 5.33 in (135.4 mm) in "rain year" 2020–21 to 30.25 in (768.3 mm) in "rain year" 1982–83. 2020-2021 was the lowest precipitation year ever, in 127 years of precipitation records in San Jose. The most precipitation in one month

2223-561: Is shaken by moderate earthquakes on average one or two times a year. These quakes originate just east of the city on the creeping section of the Calaveras Fault, which is a major source of earthquake activity in Northern California. On April 14, 1984, at 1:15 pm local time, a 6.2 magnitude earthquake struck the Calaveras Fault near San Jose's Mount Hamilton. The most serious earthquake, in 1906, damaged many buildings in San Jose as described earlier. Earlier significant quakes rocked

2340-554: Is shipped throughout the Western United States to bakeries, canneries, fisheries, cheese makers and other food industries and used to de-ice winter highways, clean kidney dialysis machines, for animal nutrition, and in many industries. Many companies have produced salt in the bay, with the Leslie Salt Company the largest private land owner in the Bay Area in the 1940s. Low-salinity salt ponds mirror

2457-608: Is the Washington-Guadalupe neighborhood, immediately south of the SoFA District ; this neighborhood is home to a community of Hispanics , centered on Willow Street. San Jose possesses about 15,950 acres (6,455 ha) of parkland in its city limits, including a part of the expansive Don Edwards San Francisco Bay National Wildlife Refuge . The city's oldest park is Alum Rock Park , established in 1872. In its 2013 ParkScore ranking, The Trust for Public Land ,

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2574-659: The City of San José ( Spanish for ' Saint Joseph ' / ˌ s æ n h oʊ ˈ z eɪ , - ˈ s eɪ / SAN hoh- ZAY , -⁠ SAY ; Spanish: [saŋ xoˈse] ), is the largest city in Northern California by both population and area. With a 2022 population of 971,233, it is the most populous city in both the Bay Area and the San Jose–San Francisco–Oakland Combined Statistical Area —which in 2022 had

2691-785: The Pueblo de San José de Guadalupe , the first city founded in the Californias . It became a part of Mexico in 1821 after the Mexican War of Independence . Following the American Conquest of California during the Mexican–American War , the territory was ceded to the United States in 1848. After California achieved statehood two years later, San Jose was designated as the state's first capital. Following World War II , San Jose experienced an economic boom, with

2808-552: The Pueblo de San José de Guadalupe by José Joaquín Moraga , under orders of Antonio María de Bucareli y Ursúa , Viceroy of New Spain . San Jose served as a strategic settlement along El Camino Real , connecting the military fortifications at the Monterey Presidio and the San Francisco Presidio , as well as the California mission network . In 1791, due to the severe flooding which characterized

2925-685: The California Trail as part of the Bartleson Party and later acquired a fortune, was the city's first mayor. San Jose was briefly California's first state capital, and legislators met in the city from 1849 to 1851. ( Monterey was the capital during the period of Spanish California and Mexican California ). The first capitol no longer exists; the Plaza de César Chávez now lies on the site, which has two historical markers indicating where California's state legislature first met. In

3042-771: The Californian coast . During this time Alta California and the Baja California peninsula were administered together as Province of the Californias (Spanish: Provincia de las Californias ). For nearly 200 years, the Californias remained a distant frontier region largely controlled by the numerous Native Nations and largely ignored by the government of the Viceroyalty of New Spain in Mexico City . Shifting power dynamics in North America—including

3159-629: The Carquinez Strait replaced the train ferry in 1930. The California Pacific became part of the Southern Pacific Railroad (SP) which in the 1990s merged into the Union Pacific Railroad, the line's current owner. The subdivision forms part of the modern Overland Route . The Capitol Corridor Joint Powers Authority is planning to construct a third track between Sacramento and Roseville as part of

3276-928: The Dumbarton Rail Bridge , the first bridge crossing San Francisco Bay. The first automobile crossing was the Dumbarton Bridge , completed in January 1927. More crossings were later constructed – the Carquinez Bridge in May 1927, the San Francisco–Oakland Bay Bridge in 1936, the Golden Gate Bridge in 1937, the Richmond–San Rafael Bridge in 1956, and the San Mateo–Hayward Bridge in 1967. During

3393-806: The First Mexican Empire in 1821, after Mexico's War of Independence was won against the Spanish Crown , and in 1824, part of the First Mexican Republic . With its newfound independence, and the triumph of the republican movement, Mexico set out to diminish the Catholic Church 's power within Alta California by secularizing the California missions in 1833. In 1824, in order to promote settlement and economic activity within sparsely populated California,

3510-633: The Kamchatka Peninsula and Japan. Recent genetic studies show that there is a local stock from San Francisco to the Russian River and that eastern Pacific coastal populations rarely migrate far, unlike western Atlantic Harbor porpoise. The common bottlenose dolphin ( Tursiops truncatus ) has been extending its current range northwards from the Southern California Bight . The first coastal bottlenose dolphin in

3627-677: The M113 Armored Personnel Carrier , the Bradley Fighting Vehicle , and various subsystems of the M1 Abrams battle tank. IBM established its first West Coast operations in San Jose in 1943 with a downtown punch card plant, and opened an IBM Research lab in 1952. Reynold B. Johnson and his team developed direct access storage for computers, inventing the RAMAC 305 and the hard disk drive ;

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3744-566: The Ohlone people since around 4,000 BC . The Tamien spoke Tamyen language of the Ohlone language family . During the era of Spanish colonization and the subsequent building of Spanish missions in California , the Tamien people's lives changed dramatically. From 1777 onward, most of the Tamien people were forcibly enslaved at Mission Santa Clara de Asís or Mission San José where they were baptized and educated to be Catholic neophytes , also known as Mission Indians . This continued until

3861-597: The Russian–American Company entered San Francisco Bay in 1807 and again over 1810–1811. Led by the Russian Timofei Nikitich Tarakanov , these hunting raids probably wiped out sea otters in the bay. Thousands of sea otter skins were taken to Sitka, then Guangzhou (Canton), China, where they commanded a high price. The United States seized the region from Mexico during the Mexican–American War (1846–1848). On February 2, 1848,

3978-652: The Sacramento and San Joaquin rivers, and from the Sierra Nevada mountains, flow into Suisun Bay , which then travels through the Carquinez Strait to meet with the Napa River at the entrance to San Pablo Bay , which connects at its south end to San Francisco Bay. It then connects to the Pacific Ocean via the Golden Gate strait. However, this entire group of interconnected bays is often called

4095-521: The Sacramento–San Joaquin River Delta remain perhaps California's most important ecological habitats . California's Dungeness crab , California halibut , and Pacific salmon fisheries rely on the bay as a nursery. The few remaining salt marshes now represent most of California's remaining salt marsh, supporting a number of endangered species and providing key ecosystem services such as filtering pollutants and sediments from

4212-548: The San Carlos and moored in a bay of Angel Island now known as Ayala Cove. Ayala continued to explore the San Francisco Bay Area and the expedition's cartographer, José de Cañizares, gathered the information necessary to produce the first map of the area. A number of place names survive (anglicized) from that first map, including Point Reyes , Angel Island , Farallon Islands , and Alcatraz Island . Alaskan Native sea otter hunters using Aleutian kayaks and working for

4329-430: The San Francisco Bay . The bay was designated a Ramsar Wetland of International Importance on February 2, 2013, and the Port of Oakland on the bay is one of the busiest cargo ports on the west coast. The bay covers somewhere between 400 and 1,600 square miles (1,000–4,000 km ), depending on which sub-bays (such as San Pablo Bay), estuaries, wetlands , and so on are included in the measurement. The main part of

4446-570: The Santa Cruz Mountains flowing north through San Jose, ending in the San Francisco Bay at Alviso . Along the southern part of the river is the neighborhood of Almaden Valley , originally named for the mercury mines which produced mercury needed for gold extraction from quartz during the California Gold Rush as well as mercury fulminate blasting caps and detonators for the U.S. military from 1870 to 1945. East of

4563-776: The Treaty of Guadalupe Hidalgo formally ceded California to the United States, as part of the Mexican Cession . On December 15, 1849, San Jose became the capital of the unorganized territory of California . With California's Admission to the Union on September 9, 1850, San Jose became the state's first capital. On March 27, 1850, San Jose was incorporated . It was incorporated on the same day as San Diego and Benicia ; together, these three cities followed Sacramento as California's earliest incorporated cities. Josiah Belden , who had settled in California in 1842 after traversing

4680-593: The 1846 Bear Flag Revolt , Captain Thomas Fallon led nineteen volunteers from Santa Cruz to the pueblo of San Jose, which his forces easily captured. The raising of the flag of the California Republic ended Mexican rule in Alta California on July 14, 1846. By the end of 1847, the Conquest of California by the United States was complete, as the Mexican–American War came to an end. In 1848,

4797-448: The 1960s and 1970s, some residents and officials advocated for returning to the original spelling of "San José", with the acute accent on the "e", to acknowledge the city's Mexican origin and Mexican-American population. On June 2, 1969, the city adopted a flag designed by historian Clyde Arbuckle that prominently featured the inscription "SAN JOSÉ, CALIFORNIA". On June 16, 1970, San Jose State College officially adopted "San José" as

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4914-504: The 1990s, San Jose had become the global center for the high tech and internet industries and was California's fastest-growing economy for 2015–2016. Between April 2020 and July 2022, San Jose lost 42,000 people, 4.1% of its population, dropping to 12th, and then 13th largest city position in largest city ranking. San Jose is named after el Pueblo de San José de Guadalupe ( Spanish for 'the Town of Saint Joseph of Guadalupe '),

5031-552: The 20th century, the bay was subject to the 1940s Reber Plan , which would have filled in parts of the bay in order to increase industrial activity along the waterfront. In 1959, the United States Army Corps of Engineers released a report stating that if current infill trends continued, the bay would be as big as a shipping channel by 2020. This news created the Save the Bay movement in 1960, which mobilized to stop

5148-547: The Bay Area in recent times was spotted in 1983 off the San Mateo County coast in 1983. In 2001, bottlenose dolphins were first spotted east of the Golden Gate Bridge and confirmed by photographic evidence in 2007. Zooarcheological remains of bottlenose dolphins indicated that bottlenose dolphins inhabited San Francisco Bay in prehistoric times until at least 700 years before present, and dolphin skulls dredged from

5265-423: The British/American victory and acquisition of North America, east of the Mississippi following the 1763 Treaty of Paris , as well as the start of Russian colonization of northwestern North America — prompted Spanish/Mexican authorities to sponsor the Portolá Expedition to survey Northern California in 1769. In 1776, the Californias were included as part of the Captaincy General of the Provincias Internas ,

5382-422: The Guadalupe River each fall in the 1990s, but have all but vanished in the current decade apparently blocked from access to breeding grounds by impassable culverts, weirs and wide, exposed and flat concrete paved channels installed by the Santa Clara Valley Water District . In 2011 a small number of Chinook salmon were filmed spawning under the Julian Street bridge. Conservationist Roger Castillo, who discovered

5499-640: The Guadalupe River, Coyote Creek also flows to south San Francisco Bay and originates on Mount Sizer near Henry W. Coe State Park and the surrounding hills in the Diablo Range , northeast of Morgan Hill, California . The lowest point in San Jose is 13 ft (4.0 m) below sea level at the San Francisco Bay in Alviso; the highest is 2,125 ft (648 m). Because of the proximity to Lick Observatory atop Mount Hamilton, San Jose has taken several steps to reduce light pollution , including replacing all street lamps and outdoor lighting in private developments with low pressure sodium lamps . To recognize

5616-771: The Mexican government began an initiative, for Mexican and foreign citizens alike, to settle unoccupied lands in California. Between 1833 and 1845, thirty-eight rancho land grants were issued in the Santa Clara Valley , 15 of which were located within modern-day San Jose's borders. Numerous prominent historical figures were among those granted rancho lands in the Santa Valley, including James A. Forbes , founder of Los Gatos, California (granted Rancho Potrero de Santa Clara ), Antonio Suñol , Alcalde of San Jose (granted Rancho Los Coches ), and José María Alviso , Alcalde of San Jose (granted Rancho Milpitas ). In 1835, San Jose's population of approximately 700 people included 40 foreigners, primarily Americans and Englishmen . By 1845,

5733-453: The Mexican province of Alta California was annexed to the United States with the signing of the Treaty of Guadalupe Hidalgo . A year and a half later, California requested to join the United States on December 3, 1849, and was accepted as the 31st State of the Union on September 9, 1850. In 1921, a tablet was dedicated by a group of men in downtown San Francisco, marking the site of the original shoreline. The tablet reads: "This tablet marks

5850-706: The Pacific Ocean like San Francisco. As a result, the city is somewhat more sheltered from rain, barely avoiding a cold semi-arid ( BSk ) climate. Like most of the Bay Area, San Jose is made up of dozens of microclimates . Because of a more prominent rain shadow from the Santa Cruz Mountains, Downtown San Jose experiences the lightest rainfall in the city, while South San Jose, only 10 mi (16 km) distant, experiences more rainfall, and somewhat more extreme temperatures. The monthly daily average temperature ranges from around 50 °F (10 °C) in December and January to around 70 °F (21 °C) in July and August. The highest temperature ever recorded in San Jose

5967-420: The Pleistocene in accordance with sea level changes caused by glacial advances and retreats. During the Wisconsin Glaciation , between 15,000 and about 10,000 years ago, the basin which is now filled by the San Francisco Bay was a large river valley with small hills, channeling the Sacramento River through the Golden Gate Strait into the ocean. When the great ice sheets began to melt, around 11,000 years ago,

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6084-425: The Port of Oakland. Some six million cubic yards (160 million cubic feet; 4.6 million cubic meters) of mud from the dredging was deposited at the western edge of Middle Harbor Shoreline Park to become a 188-acre (0.294 sq mi; 0.76 km ) shallow-water wetlands habitat for marine and shore life. Further dredging followed in 2011, to maintain the navigation channel. This dredging enabled

6201-525: The Santa Clara Valley and, in turn, walling off the expansion of adjacent communities. During his reign, it was said the City Council would vote according to Hamann's nod. In 1963, the State of California imposed Local Agency Formation Commissions statewide, but largely to try to maintain order with San Jose's aggressive growth. Eventually the political forces against growth grew as local neighborhoods bonded together to elect their own candidates, ending Hamann's influence and leading to his resignation. While

6318-431: The arrival of Europeans. Indigenous peoples used canoes to fish and clam along the shoreline. Sailing ships enabled transportation between the bay and other parts of the world—and served as ferries and freighters within the bay and between the bay and inland ports, such as Sacramento and Stockton. These were gradually replaced by steam-powered vessels starting in the late 19th century. Several shipyards were established around

6435-431: The arrival of the largest container ship ever to enter the San Francisco Bay, the MSC Fabiola . Bay pilots trained for the visit on a simulator at the California Maritime Academy for over a year. The ship arrived drawing less than its full draft of 50 feet 10 inches (15.5 m) because it held only three-quarters of a load after its stop in Long Beach. San Francisco Bay was traversed by watercraft before

6552-401: The average depth of the bay is only as deep as a swimming pool—approximately 12 to 15 ft (4–5 m). Between Hayward and San Mateo to San Jose it is 12 to 36 in (30–90 cm). The deepest part of the bay is under and out of the Golden Gate Bridge, at 372 ft (113 m). In the late 1990s, a 12-year harbor-deepening project for the Port of Oakland began; it

6669-427: The bay and converting them back to wetlands. The idea was, and remains, controversial. ( For further details, see the " Bay fill and depth profile " section. ) There are five large islands in San Francisco Bay. Alameda , the largest island, was created when a shipping lane was cut to form the Port of Oakland in 1901. It is now a suburban community. Angel Island was known as " Ellis Island West" because it served as

6786-533: The bay for non-motorized small boat users (such as kayakers) is being developed. Parks and protected areas around the bay include Eden Landing Ecological Reserve , Hayward Regional Shoreline , Don Edwards San Francisco Bay National Wildlife Refuge , Hayward Shoreline Interpretive Center , Crown Memorial State Beach , Eastshore State Park , Point Isabel Regional Shoreline , Brooks Island Regional Preserve , and César Chávez Park . The California Office of Environmental Health Hazard Assessment (OEHHA) has developed

6903-464: The bay measures three to twelve miles (5–19 km) wide east-to-west and somewhere between 48 miles (77 km) and 60 miles (97 km) north-to-south. San Francisco Bay is the second-largest estuary on the Pacific coast of the Americas, following the Salish Sea in Washington State and British Columbia, Canada. The bay was navigable as far south as San Jose until the 1850s, when hydraulic mining released massive amounts of sediment from

7020-406: The bay perimeter. San Francisco Bay provided the nation's first wildlife refuge, Oakland's artificial Lake Merritt , constructed in the 1860s, and America's first urban National Wildlife Refuge, the Don Edwards San Francisco Bay National Wildlife Refuge (SFBNWR) in 1972. The bay is also plagued by non-native species. Salt produced from San Francisco Bay is produced in salt evaporation ponds and

7137-417: The bay suggest occasional visitors in historic times. San Francisco Bay faces many of the same water quality issues as other urban waterways in industrialized countries, or downstream of intensive agriculture. According to state water quality regulators, San Francisco Bay waters do not meet water quality standards for the following pollutants: Industrial, mining, and other uses of mercury have resulted in

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7254-415: The bay, augmented during wartime (e.g., the Kaiser Shipyards , Richmond Shipyards ) near Richmond in 1940 for World War II for construction of mass-produced, assembly line Liberty and Victory cargo ships . San Francisco Bay is spanned by nine bridges, eight of which carry cars . The Transbay Tube , an underwater rail tunnel, carries BART services between Oakland and San Francisco. Prior to

7371-421: The bridges and, later, the Transbay Tube, transbay transportation was dominated by fleets of ferryboats operated by the Southern Pacific Railroad and the Key System transit company. However, in recent decades, ferries have returned, primarily serving commuters from Marin County, relieving the traffic bottleneck of the Golden Gate Bridge (see Ferries of San Francisco Bay ). The bay also continues to serve as

7488-403: The center of the bay is Alcatraz , the site of the famous federal penitentiary. The federal prison on Alcatraz Island no longer functions, but the complex is a popular tourist site. Despite its name, Mare Island in the northern part of the bay is a peninsula rather than an island. San Francisco Bay is thought to represent a down-warping of the Earth's crust between the San Andreas Fault to

7605-427: The center of the bay, following the ancient drowned river valley. In the 1860s and continuing into the early 20th century, miners dumped staggering quantities of mud and gravel from hydraulic mining operations into the upper Sacramento and San Joaquin Rivers. GK Gilbert's estimates of debris total more than eight times the amount of rock and dirt moved during construction of the Panama Canal. This material flowed down

7722-513: The city from 17 to 149 sq mi (44 to 386 km ), absorbing the communities named above, changing their status to "neighborhoods." They say San José is going to become another Los Angeles. Believe me, I'm going to do everything in my power to make that come true. Sales taxes were a chief source of revenue. Hamann would determine where major shopping areas would be, and then annex narrow bands of land along major roadways leading to those locations, pushing "tentacles" or "finger areas" across

7839-431: The city in 1839, 1851, 1858, 1864, 1865, 1868 , and 1891. The Daly City Earthquake of 1957 caused some damage. The Loma Prieta earthquake of 1989 also did some damage to parts of the city. San Jose's expansion was made by the design of "Dutch" Hamann , the City Manager from 1950 to 1969. During his administration, with his staff referred to as "Dutch's Panzer Division ", the city annexed property 1,389 times, growing

7956-399: The city lies away from the bayshore. According to the United States Census Bureau , the city has a total area of 180.0 sq mi (466 km ), making the fourth-largest city in California by land area (after Los Angeles, San Diego and California City ). San Jose lies between the San Andreas Fault , the source of the 1989 Loma Prieta earthquake , and the Calaveras Fault . San Jose

8073-411: The city logo. The accent reflects the Spanish version of the name, and the dropping of accents in all-capital writing was once typical in Spanish. While San José is commonly spelled both with and without the acute accent over the "e", the city's official guidelines indicate that it should be spelled with the accent most of the time and sets forth narrow exceptions, such as when the spelling is in URLs, when

8190-399: The city motto of "Capital of Silicon Valley" in 1988 to promote the city. Major global tech companies including Cisco Systems , eBay , Adobe Inc. , PayPal , Broadcom , and Zoom maintain their headquarters in San Jose. One of the wealthiest major cities in the world, San Jose has the third-highest GDP per capita (after Zurich and Oslo ) and the fifth-most expensive housing market. It

8307-440: The city seal, official stationery, office titles and department names. As late as 2010, the 1965 city charter stated the name of the municipal corporation as City of San Jose , without the accent mark, but later editions have added the accent mark. By convention, the spelling San José is only used when the name is spelled in mixed upper- and lowercase letters, but not when the name is spelled only in uppercase letters, as on

8424-542: The city's efforts, the asteroid 6216 San Jose was named after the city. There are four distinct valleys in the city of San Jose: Almaden Valley, situated on the southwest fringe of the city; Evergreen Valley to the southeast, which is hilly all throughout its interior; Santa Clara Valley, which includes the flat, main urban expanse of the South Bay; and the rural Coyote Valley , to the city's extreme southern fringe. The extensive droughts in California , coupled with

8541-484: The city's name, including in the college's own name. On August 20, 1974, the San Jose City Council approved a proposal by Catherine Linquist to rename the city "San José" but reversed itself a week later under pressure from residents concerned with the cost of changing typewriters, documents, and signs. On April 3, 1979, the city council once again adopted "San José" as the spelling of the city name on

8658-482: The city's predecessor, which was eventually located in the area of what is now the Plaza de César Chávez . In the 19th century, print publications used the spelling "San José" for both the city and its eponymous township . On December 11, 1943, the United States Board on Geographic Names ruled that the city's name should be spelled "San Jose" based on local usage and the formal incorporated name. In

8775-514: The city. Besides those mentioned above, some well-known communities within San Jose include Japantown , Rose Garden , Midtown San Jose , Willow Glen , Naglee Park , Burbank , Winchester , Alviso , East Foothills , Alum Rock , Communications Hill , Little Portugal , Blossom Valley , Cambrian , Almaden Valley , Little Saigon , Silver Creek Valley , Evergreen Valley , Mayfair , Edenvale , Santa Teresa , Seven Trees , Coyote Valley , and Berryessa . A distinct ethnic enclave in San Jose

8892-631: The city. The major trails in the network include: This large urban trail network, recognized by Prevention Magazine as the nation's largest, is linked to trails in surrounding jurisdictions and many rural trails in surrounding open space and foothills. Several trail systems within the network are designated as part of the National Recreation Trail, as well as regional trails such as the San Francisco Bay Trail and Bay Area Ridge Trail. Early written documents record

9009-512: The decades surrounding 1900, at the behest of local political officials and following Congressional orders, the U.S. Army Corps began dredging the Sacramento and San Joaquin Rivers and the deep channels of San Francisco Bay. This work has continued without interruption ever since. Some of the dredge spoils were initially dumped in the bay shallows (including helping to create Treasure Island on

9126-606: The drainage of the reservoir at Anderson Lake for seismic repairs, have strained the city's water security . San Jose has suffered from lack of precipitation and water scarcity to the extent that some residents may run out of household water by the summer of 2022. San Jose, like most of the Bay Area, has a Mediterranean climate ( Köppen : Csb ), with warm to hot, dry summers and cool, wet winters. San Jose has an average of 298 days of sunshine and an annual mean temperature of 61.4 °F (16.3 °C). It lies inland, surrounded on three sides by mountains, and does not front

9243-419: The ecosystem of the bay, with fish and fish-eating birds in abundance. Mid-salinity ponds support dense populations of brine shrimp , which provide a rich food source for millions of shorebirds. Only salt-tolerant micro-algae survive in the high salinity ponds, and impart a deep red color to these ponds from the pigment within the algae protoplasm. The salt marsh harvest mouse is an endangered species endemic to

9360-449: The edges of the bay were, for many years, considered wasted space. As a result, soil excavated for building projects or dredged from channels was often dumped onto the wetlands and other parts of the bay as landfill. From the mid-19th century through the late 20th century, more than a third of the original bay was filled and often built on. The deep, damp soil in these areas is subject to soil liquefaction during earthquakes, and most of

9477-539: The entry point for immigrants from East Asia. It is now a state park accessible by ferry. Mountainous Yerba Buena Island is pierced by a tunnel linking the east and west spans of the San Francisco–Oakland Bay Bridge . Attached to the north is the artificial and flat Treasure Island , site of the 1939 Golden Gate International Exposition . From the Second World War until the 1990s, both islands served as military bases and are now being redeveloped. Isolated in

9594-479: The first time in 65 years, Pacific Harbor Porpoise ( Phocoena phocoena ) returned to the bay in 2009. Golden Gate Cetacean Research, a non-profit organization focused on research on cetaceans , has developed a photo-identification database enabling the scientists to identify specific porpoise individuals and is trying to ascertain whether a healthier bay has brought their return. Pacific harbor porpoise range from Point Conception , California, to Alaska and across to

9711-561: The former shoals to the north of Yerba Buena Island ) and used to raise islands in the Sacramento-San Joaquin Delta. The net effect of dredging has been to maintain a narrow deep channel—deeper perhaps than the original bay channel—through a much shallower bay. At the same time, most of the marsh areas have been filled or blocked off from the bay by dikes . Large ships transiting the bay must follow deep underwater channels that are maintained by frequent dredging as

9828-489: The incorporations of Campbell and Cupertino , development was not slowed, but rather directed into already-incorporated areas. San Jose's position in Silicon Valley triggered further economic and population growth. Results from the 1990 U.S. Census indicated that San Jose surpassed San Francisco as the most populous city in the Bay Area for the first time. This growth led to the highest housing-cost increase in

9945-503: The infill of wetlands and the bay in general, which had shrunk to two-thirds of its size in the century before 1961. The San Francisco Bay continues to support some of the densest industrial production and urban settlement in the United States. The San Francisco Bay Area is the American West's second-largest urban area, with approximately seven million residents. Despite its urban and industrial character, San Francisco Bay and

10062-599: The job was not complete, the trend was set. The city had defined its sphere of influence in all directions, sometimes chaotically leaving unincorporated pockets to be swallowed up by the behemoth, sometimes even at the objection of the residents. Major thoroughfares in the city include Monterey Road , the Stevens Creek Boulevard / San Carlos Street corridor, Santa Clara Street / Alum Rock Avenue corridor, Almaden Expressway , Capitol Expressway , and 1st Street (San Jose) . The Guadalupe River runs from

10179-482: The largest oil spill in the region since 1996. The bay also has some of the highest levels of dissolved inorganic nitrogen known from any coastal water body, mostly originating from treated wastewater from Publicly owned treatment works . In other bays, such nutrient levels would likely lead to eutrophication , but historically, the bay has had less harmful algal blooms than other water bodies with similar nutrient concentrations. Potential explanations have included

10296-561: The late 19th century and again with the initiation of dredging by the US Army Corps of Engineers in the 20th century. Before about 1860, most bay shores (with the exception of rocky shores, such as those in Carquinez Strait; along Marin shoreline; Point Richmond; Golden Gate area) contained extensive wetlands that graded nearly invisibly from freshwater wetlands to salt marsh and then tidal mudflat. A deep channel ran through

10413-565: The local presence of migrating salmon in the Rio Guadalupe dating as far back as the 18th century. Both steelhead ( Oncorhynchus mykiss ) and King salmon are extant in the Guadalupe River , making San Jose the southernmost major U. S. city with known salmon spawning runs, the other cities being Anchorage ; Seattle ; Portland and Sacramento . Runs of up to 1,000 Chinook or King Salmon ( Oncorhynchus tshawytscha ) swam up

10530-512: The main component of the San Jose–Sunnyvale–Santa Clara Metropolitan Statistical Area, with an estimated population of around two million residents in 2018. San Jose is notable for its innovation , cultural diversity, affluence , and sunny and mild Mediterranean climate . Its connection to the booming high tech industry phenomenon known as Silicon Valley prompted Mayor Tom McEnery to adopt

10647-677: The major damage close to the bay in the Loma Prieta earthquake of 1989 occurred to structures on these areas. The Marina District of San Francisco, hard hit by the 1989 earthquake, was built on fill that had been placed there for the Panama-Pacific International Exposition , although liquefaction did not occur on a large scale. In the 1990s, San Francisco International Airport proposed filling in hundreds more acres to extend its overcrowded international runways in exchange for purchasing other parts of

10764-510: The mission was secularized by the Mexican Government in 1833. A large majority of the Tamien died either from disease in the missions, or as a result of the state sponsored genocide . Some surviving families remained intact, migrating to Santa Cruz after their ancestral lands were granted to Spanish and Mexican Immigrants. California was claimed as part of the Spanish Empire in 1542, when explorer Juan Rodríguez Cabrillo charted

10881-581: The most recent snow to remain on the ground was on February 5, 1976, when many residents around the city saw as much as 3 in (0.076 m) on car and roof tops. The official observation station measured only 0.5 in (0.013 m) of snow. The city is generally divided into the following areas: Central San Jose (centered on Downtown San Jose ), West San Jose , North San Jose , East San Jose , and South San Jose . Many of San Jose's districts and neighborhoods were previously unincorporated communities or separate municipalities that were later annexed by

10998-444: The name appears in all-capital letters, when the name is used on social media sites where the diacritical mark does not render properly, and where San Jose is part of the proper name of another organization or business, such as San Jose Chamber of Commerce , that has chosen not to use the accent-marked name. San Jose, along with most of the Santa Clara Valley , has been home to the Tamien group (also spelled as Tamyen, Thamien) of

11115-430: The nation, 936% between 1976 and 2001. Efforts to increase density continued into the 1990s when an update of the 1974 urban plan kept the urban growth boundaries intact and voters rejected a ballot measure to ease development restrictions in the foothills. As of 2006, sixty percent of the housing built in San Jose since 1980 and over three-quarters of the housing built since 2000 have been multifamily structures, reflecting

11232-489: The old coastline, and Potato Patch Shoal is an area of sand dunes now covered by the ocean. The indigenous inhabitants of the San Francisco Bay are Ohlone . The first European to see San Francisco Bay is likely N. de Morena who was left at New Albion at Drakes Bay in Marin County, California , by Sir Francis Drake in 1579 and then walked to Mexico. The first recorded European discovery of San Francisco Bay

11349-432: The period 1900 through 1910, San Jose served as a center for pioneering invention, innovation, and impact in both lighter-than-air and heavier-than-air flight. These activities were led principally by John Montgomery and his peers. The City of San Jose has established Montgomery Park, a Monument at San Felipe and Yerba Buena Roads, and John J. Montgomery Elementary School in his honor. During this period, San Jose also became

11466-409: The population of the pueblo had increased to 900, primarily due to American immigration. Foreign settlement in San Jose and California was rapidly changing Californian society, bringing expanding economic opportunities and foreign culture. By 1846, native Californios had long expressed their concern for the overrunning of California society by its growing and wealthy Anglo-American community. During

11583-416: The presence of intensive "top-down control" from grazing clams like Potamocorbula , high sediment supply limiting light availability for the algae, and intensive tidal mixing. The occurrence of an unprecedented harmful algal bloom of Heterosigma akashiwo in 2022, resulting in mass fish deaths and anoxia, suggests that the mechanisms of control on algal growth may be eroding. The bay was once considered

11700-601: The pueblo, San Jose's settlement was moved approximately a mile south, centered on the Pueblo Plaza (modern-day Plaza de César Chávez ). In 1800, due to the growing population in the northern part of the Californias, Diego de Borica , Governor of the Californias, officially split the province into two parts: Alta California ( Upper California ), which would eventually become several western U.S. states , and Baja California ( Lower California ), which would eventually become two Mexican states . San Jose became part of

11817-405: The rivers that settled in those parts of the bay that had little or no current. Later, wetlands and inlets were deliberately filled in, reducing the bay's size since the mid-19th century by as much as one third. Recently, large areas of wetlands have been restored, further confusing the issue of the bay's size. Despite its value as a waterway and harbor , many thousands of acres of marshy wetlands at

11934-463: The rivers, progressively eroding into finer and finer sediment, until it reached the bay system. Here some of it settled, eventually filling in Suisun Bay, San Pablo Bay, and San Francisco Bay, in decreasing order of severity. By the end of the 19th century, these " slickens " had filled in much of the shallow bay flats, raising the entire bay profile. New marshes were created in some areas. In

12051-838: The rivers. San Francisco Bay is recognized for protection by the California Bays and Estuaries Policy , with oversight provided by the San Francisco Estuary Partnership . Most famously, the bay is a key link in the Pacific Flyway . Millions of waterfowl annually use the bay shallows as a refuge. Two endangered species of birds are found here: the California least tern and the Ridgway's Rail . Exposed bay muds provide important feeding areas for shorebirds , but underlying layers of bay mud pose geological hazards for structures near many parts of

12168-568: The sea level started to rise rapidly, by about 1 inch per year. Melting glaciers in the Sierra Nevada washed huge amounts of sediment down the Sacramento and San Joaquin rivers, which accumulated on the shores of the bay, forming huge mudflats and marshes that supported local wildlife. By 5000 BC the sea level rose 300 feet (90 m), filling the valley with water from the Pacific. The Farallon Islands are what used to be hills along

12285-643: The shore line of San Francisco Bay at the time of the discovery of gold in California, January 24, 1848. Map reproduced above delineates old shore line. Placed by the Historic Landmarks committee, Native Sons of the Golden West , 1921." The bay became the center of American settlement and commerce in the Far West through most of the remainder of the 19th century. During the California Gold Rush (1848–1855), San Francisco Bay suddenly became one of

12402-603: The site for a military settlement in San Francisco, for the Royal Presidio of San Francisco , and Mission San Francisco de Asís . On his way back to Mexico from San Francisco, de Anza chose the sites in Santa Clara Valley for a civilian settlement, San Jose, on the eastern bank of the Guadalupe River , and a mission on its western bank, Mission Santa Clara de Asís . San Jose was officially founded as California's first civilian settlement on November 29, 1777, as

12519-506: The surrounding hills. The CZU lightning complex fires took almost 5 months to fully be controlled. Over 86,000 acres were burned and nearly 1500 buildings were destroyed. The snow level drops as low as 4,000 ft (1,220 m) above sea level, or lower, occasionally coating nearby Mount Hamilton and, less frequently, the Santa Cruz Mountains , with snow that normally lasts a few days. Snow will snarl traffic traveling on State Route 17 towards Santa Cruz . Snow rarely falls in San Jose;

12636-478: The technological side of San Jose's economy grew. During the 1950s and 1960s, City Manager A. P. "Dutch" Hamann led the city in a major growth campaign. The city annexed adjacent areas, such as Alviso and Cambrian Park , providing large areas for suburbs. An anti-growth reaction to the effects of rapid development emerged in the 1970s, championed by mayors Norman Mineta and Janet Gray Hayes . Despite establishing an urban growth boundary , development fees, and

12753-521: The west and the Hayward Fault to the east, though the precise nature of this remains under study. About 560,000 years ago, a tectonic shift caused the large inland Lake Corcoran to spill out the central valley and through the Carquinez Strait , carving out sediment and forming canyons in what is now the northern part of the San Francisco Bay and Golden Gate strait . San Francisco Bay has been filled and emptied of sea water many times during

12870-434: The wetlands of the San Francisco Bay with a high salt tolerance. It needs native pickleweed , which is often displaced by invasive cordgrass, for its habitat. The seasonal range of water temperature in the bay is from January's 53 °F (12 °C) to September's 60 °F (16 °C) when measured at Fort Point , which is near the southern end of the Golden Gate Bridge and at the entrance to San Francisco Bay. For

12987-559: The world's great seaports, dominating shipping in the American West until the last years of the 19th century. The bay's regional importance increased further when the first transcontinental railroad was connected to its western terminus at Alameda on September 6, 1869. The terminus was switched to the Oakland Long Wharf two months later on November 8, 1869. In 1910, the Southern Pacific railroad company built

13104-414: Was 109 °F (43 °C) on September 6, 2022; the lowest was 18 °F (−7.8 °C) on January 6, 1894. On average, there are 2.7 mornings annually where the temperature drops to, or below, the freezing mark; and sixteen afternoons where the high reaches or exceeds 90 °F or 32.2 °C. Diurnal temperature variation is far wider than along the coast or in San Francisco but still a shadow of what

13221-409: Was 12.38 in (314.5 mm) in January 1911. The maximum 24-hour rainfall was 3.60 in (91.4 mm) on January 30, 1968. On August 16, 2020, one of the most widespread and strong thunderstorm events in recent Bay Area history occurred as an unstable humid air mass moved up from the south and triggered multiple dry thunderstorms which caused many fires to be ignited by 300+ lightning strikes in

13338-646: Was also destroyed. The period during World War II was tumultuous; Japanese Americans primarily from Japantown were sent to internment camps , including the future mayor Norman Mineta . Following the Los Angeles zoot suit riots , anti-Mexican violence took place during the summer of 1943. In 1940, the Census Bureau reported San Jose's population as 98% white. As World War II started, the city's economy shifted from agriculture (the Del Monte cannery

13455-697: Was largely completed by September 2009. Previously, the bay waters and harbor facilities only allowed for ships with a draft of 46 ft (14 m), but dredging activities undertaken by the United States Army Corps of Engineers in partnership with the Port of Oakland succeeded in providing access for vessels with a 50-foot (15 m) draft. Four dredging companies were employed in the US$ 432 ;million project, with $ 244 million paid for with federal funds and $ 188 million supplied by

13572-409: Was on November 4, 1769, when Spanish explorer Gaspar de Portolá , unable to find the Port of Monterey , continued north close to what is now Pacifica and reached the summit of the 1,200-foot-high (370 m) Sweeney Ridge , now marked as the place where he first sighted San Francisco Bay. Portolá and his party did not realize what they had discovered, thinking they had arrived at a large arm of what

13689-606: Was the largest employer and closed in 1999 ) to industrial manufacturing with the contracting of the Food Machinery Corporation (later known as FMC Corporation ) by the United States War Department to build 1,000 Landing Vehicle Tracked . After World War II, FMC (later United Defense , and currently BAE Systems ) continued as a defense contractor , with the San Jose facilities designing and manufacturing military platforms such as

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