San Francisco Bay

Shallow estuary on the coast of California, United States

For the geographical region, see San Francisco Bay Area. For the California wine region, see San Francisco Bay AVA.

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Body of water

San Francisco Bay

File:Bay Area by Sentinel-2, 2019-03-11 (small version).jpg

San Francisco Bay is located in California

San Francisco Bay

San Francisco Bay

Coordinates| 37°40′N 122°16′W﻿ / ﻿37.67°N 122.27°W﻿ / 37.67; -122.27[1]Coordinates: 37°40′N 122°16′W﻿ / ﻿37.67°N 122.27°W﻿ / 37.67; -122.27[1]
Type| Bay
River sources| Sacramento River
San Joaquin River
Petaluma River
Napa River
Guadalupe River
Ocean/sea sources| Pacific Ocean
Basin countries| United States
Max. length| 97 km (60 mi)
Max. width| 19 km (12 mi)
Surface area| 400–1,600 sq mi (1,000–4,100 km2)
Settlements| San Francisco
San Jose
Oakland

Ramsar Wetland

Official name| San Francisco Bay/Estuary (SFBE)
Designated| February 2, 2013
Reference no.| 2097[2]

File:SF-Marin-Pt Reyes aerial panorama.jpg

Aerial panorama of the northern Bay, the Bay Bridge, Golden Gate, and Marin Headlands on a clear morning. November 2014 photo by Doc Searls.

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 large cities of San Francisco, San Jose, and Oakland.

San Francisco Bay drains water from approximately 40 percent of California. Water from 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 the San Francisco Bay. The bay was designated a Ramsar Wetland of International Importance on February 2, 2017.

## Contents

* 1 Size
* 2 Geology
* 3 History
* 4 Ecology
* 5 Pollution
* 6 Bay fill and depth profile
* 7 Transportation
* 8 Recreation
* 9 Gallery
* 10 See also
* 11 References
* 12 Literature
* 13 External links

## Size[edit | edit source]

The bay covers somewhere between 400 and 1,600 square miles (1,000–4,000 km2), depending on which sub-bays (such as San Pablo Bay), estuaries, wetlands, and so on are included in the measurement.[3][4][5] The main part of the bay measures three to twelve miles (5–19 km) wide east-to-west and somewhere between 48 miles (77 km)1 and 60 miles (97 km)2 north-to-south. It is the largest Pacific estuary in the Americas.

The bay was navigable as far south as San Jose until the 1850s, when hydraulic mining released massive amounts of sediment from 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 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 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 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 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 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.

Panorama of San Francisco Bay, and the city skyline seen from Marin County in the Golden Gate National Recreation Area.

Panorama of San Francisco Bay, and the city skyline seen from Marin County in the Golden Gate National Recreation Area.

## Geology[edit | edit source]

File:Urban-Rural Population and Land Area Estimates, v2, 2010 San Francisco Bay, U.S. (13874137664).jpg

Population density and low elevation coastal zones in San Francisco Bay (2010). The San Francisco Bay is especially vulnerable to sea level rise.

San Francisco Bay is thought to represent a down-warping of the Earth's crust between the San Andreas Fault to 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.[6]

Until the last ice age, the basin which is now filled by the San Francisco Bay was a large linear valley with small hills, similar to most of the valleys of the Coast Ranges. As the great ice sheets began to melt, around 11,000 years ago, the sea level started to rise. By 5000 BC the sea level rose 300 feet (90 m), filling the valley with water from the Pacific.[7] The valley became a bay, and the small hills became islands.

## History[edit | edit source]

File:1781 Cañizares Map of San Francisco Bay.pdf

Cañizares Map of San Francisco Bay

See also: San Francisco Bay Discovery Site

See also: Timeline of the San Francisco Bay Area

The indigenous inhabitants of the San Francisco Bay are Ohlone.[8] 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.[9][10]

The first recorded European discovery of San Francisco Bay 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 is now called Drakes Bay.[11] 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 the San Carlos and moored in a bay of Angel Island now known as Ayala Cove. Ayala continued to explore the Bay area and the expedition's cartographer, José de Cañizares, gathered the information necessary to produce the first map of the San Francisco Bay Area. A number of place names survive (anglicized) from that first map, including Point Reyes, Angel Island, Farallon Islands and Alcatraz Island.

The United States seized the region from Mexico during the Mexican–American War (1846–1848). On February 2, 1848, 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.

File:Shoreline markers 2012-09-15 16-52-23.jpg

San Francisco Bay Shoreline Tablet.

In 1921, a tablet was dedicated by a group of men including Lewis Francis Byington, in downtown San Francisco, marking the site of the original shoreline. The tablet reads: "This tablet marks 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."[12]

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 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.[13] The terminus was switched to the Oakland Long Wharf two months later on November 8, 1869.[14]

File:Dumbarton Rail Bridge 2021 redux.JPG

The Dumbarton Rail Bridge

In 1910, the Southern Pacific railroad company built the Dumbarton Rail Bridge,[15] the first bridge crossing San Francisco Bay.[16] The first automobile crossing was the Dumbarton Bridge, completed in January 1927.[17] More crossings were later constructed – the Carquinez Bridge in May 1927,[18] the San Francisco–Oakland Bay Bridge in 1936,[19] the Golden Gate Bridge in 1937,[20] the Richmond–San Rafael Bridge in 1956,[21] and the San Mateo–Hayward Bridge in 1967.[22]

File:Duck Hunt Marshy Shoreline San Francisco Bay Alameda County california.jpg

Duck hunting on the Bay, 1915

File:Dredger near the Dumbarton Bridge in California.JPG

Mallard II, a clamshell dredge built in 1936 and used into the 21st century to dredge levees for Cargill's salt ponds in the bay

During the 20th century, the bay was subject to the 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 the infill of wetlands and the bay in general, which had shrunk to two-thirds of its size in the century before 1961.[23]

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.[24]

## Ecology[edit | edit source]

Main article: Ecology of the San Francisco Estuary

File:Sf Estuary Historical.gif

San Francisco Bay c. 1770–1820

File:South San Francisco Bay salt ponds and wildlife refuges.jpg

South Bay salt ponds and wildlife refuges, aerial view from the southeast

Despite its urban and industrial character, San Francisco Bay and 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 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.[25]

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 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 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.[26][27]

Low-salinity salt ponds mirror 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 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.[28]

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.[29]

For the first time in 65 years, Pacific Harbor Porpoise (Phocoena phocoena) returned to the Bay in 2009.[30] 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.[31] Pacific harbor porpoise range from Point Conception, California, to Alaska and across to 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.[32]

## Pollution[edit | edit source]

Industrial, mining, and other uses of mercury have resulted in a widespread distribution in the bay, with uptake in the bay's phytoplankton and contamination of its sportfish.[33] 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 the largest oil spill in the region since 1996.[34]

The Bay was once considered 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[35] 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.[36]

City skyline through the fog, from the Golden Gate National Recreation Area.

City skyline through the fog, from the Golden Gate National Recreation Area.

## Bay fill and depth profile[edit | edit source]

File:San Francisco Bay aerial view.jpg

San Francisco Bay and the Golden Gate Bridge, looking southeast towards the City and East Bay. Alcatraz is the small islet in the upper-middle left.

San Francisco Bay's profile changed dramatically in 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 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 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.

File:Boats in San Francisco bay.jpg

Cargo ships in San Francisco bay in 2012

In 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—an enormous federal subsidy of San Francisco Bay shipping.[citation needed] Some of the dredge spoils were initially dumped in the bay shallows (including helping to create Treasure Island on 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 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).[37]

In the late 1990s, a 12-year harbor-deepening project for the Port of Oakland began; it 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 the Port of Oakland. Some six million cubic yards (160 million cubic feet; 4.6 million cubic metres) 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 km2) shallow-water wetlands habitat for marine and shore life.[38][39] Further dredging followed in 2011, to maintain the navigation channel.[40][41] This dredging enabled 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.[42]

## Transportation[edit | edit source]

File:San Francisco Bay bridges.svg

1\.  | Richmond-San Rafael Bridge

|

2\.  | Golden Gate Bridge
3\.  | San Francisco-Oakland Bay Bridge
4\.  | San Mateo-Hayward Bridge
5\.  | Dumbarton Bridge
6\.  | Carquinez Bridge
7\.  | Benicia-Martinez Bridge
8\.  | Antioch Bridge

Main article: Transportation in the San Francisco Bay Area

San Francisco Bay was traversed by watercraft before 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 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 Richmond–San Rafael Bridge on Interstate 580 (I-580) connects Marin and Contra Costa counties.
* The Golden Gate Bridge on U.S. Route 101/State Route 1 (US 101/SR 1) was the largest single span suspension bridge ever built at the time of its 1937 construction. It spans the Golden Gate, the strait between San Francisco and Marin County, and is the only bridge in the area not owned by the State of California.
* The San Francisco–Oakland Bay Bridge on I-80 connects Alameda and San Francisco counties.
* The San Mateo–Hayward Bridge on SR 92 connects Alameda and San Mateo counties.
* The Dumbarton Bridge on SR 84 connects Alameda and San Mateo counties.
* The Carquinez Bridge (including the Alfred Zampa Memorial Bridge) on I-80 connects Contra Costa and Solano counties.
* The Benicia Bridge on I-680 also connects Contra Costa and Solano counties.
* The Antioch Bridge on SR 160 connects Contra Costa and Sacramento counties.
* The Dumbarton Rail Bridge is an abandoned bridge that used to carry rail traffic.

The Transbay Tube, an underwater rail tunnel, carries BART services between Oakland and San Francisco.

Prior to 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 article Ferries of San Francisco Bay).

File:Port Of Oakland California.png

Port of Oakland California

The bay also continues to serve as 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.

## Recreation[edit | edit source]

San Francisco Bay is a mecca 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) 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 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 Shoreline, and César Chávez Park.

The California Office of Environmental Health Hazard Assessment (OEHHA) has developed a safe eating advisory for fish caught in the San Francisco Bay based on levels of mercury or PCBs found in local species.[43]

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 Francisco Bay panorama with a view of sailboats, kite boarders, and the Crissy Field Beach.

San Francisco Bay panorama with a view of sailboats, kite boarders, and the Crissy Field Beach.

## Gallery[edit | edit source]

* San Francisco from Forbes Island pier 39, 544.jpg

San Francisco from Forbes Island, pier 39

* AlbertBierstadt-San Francisco Bay.jpg

"San Francisco Bay", painting by Albert Bierstadt, 1871–73

* Berkeleyfromclaremont800x600.jpg

The City of Berkeley, the Bay and Marin County in the background as seen from the Claremont Canyon reserve

* TamFromPinole.jpg

Mount Tamalpais view across San Pablo Bay at Point Pinole Regional Shoreline in Richmond

* San Francisco Bay from the air in May 2010 01.jpg

Looking north into San Pablo Bay at the Richmond-San Rafael Bridge, 2010

* Alcatraz dawn 2005-01-07.jpg

Alcatraz at dawn on San Francisco Bay

* Airbayarea.JPG

Aerial view of Golden Gate and the northern Bay, looking east from the Pacific

* Kellerbeach1.jpg

People also swim recreationally, at Kellar Beach in Richmond's Miller/Knox Regional Shoreline.

* Oil spill in san francisc bay 1.jpg

Oil Spill in the Bay

* RMS Queen Mary 2 in san francisco bay.jpg

RMS Queen Mary 2 in San Francisco Bay

* Fort Baker on San Francisco Bay.jpg

Fort Baker on San Francisco Bay, just east of the Golden Gate

* San Francisco Bay NASA World Wind Globe.jpg

NASA satellite image, showing water flow

* View from Mission Peak 2.JPG

Salt ponds at the southern tip of the bay

* Golden Gate Bridge and San Francisco Bay.jpg

The bay seen in July 2010

* Ships in San Francisco Bay aerial.jpg

Ships at anchor in the bay

## See also[edit | edit source]

* Golden Gate
* Golden Gate Bridge
* Hydrography of the San Francisco Bay Area
* Islands of San Francisco Bay
* J.C. Barthel, who prepared "plans for the docks and other water-front improvements in the San Francisco Bay district"
* McLaughlin Eastshore State Park
* Mount Diablo
* Mount Tamalpais State Park
* Napa Sonoma Marsh
* Point Pinole Regional Shoreline, Richmond

## References[edit | edit source]

1. ^ "San Francisco Bay". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. January 19, 1981. Retrieved January 2, 2017.
2. ^ "San Francisco Bay/Estuary (SFBE)". Ramsar Sites Information Service. Retrieved April 25, 2018.
3. ^ "Symphonies in Steel: San Francisco – Oakland Bay Bridge and the Golden Gate".
4. ^ San Francisco Bay Watershed Database and Mapping Project Archived October 30, 2004, at the Wayback Machine
5. ^ "BCDC - The San Francisco Bay Estuary". bcdc.ca.gov. Retrieved February 14, 2022.
6. ^ "The Formation of San Francisco Bay" (PDF). KQED education. Retrieved June 4, 2018.
7. ^ Yabrove, Daniel (December 9, 2013). "How the Bay was Born". Save The Bay Blog. Save The Bay. Retrieved June 4, 2018.
8. ^ Olmsted, Nancy J. "Water on the Land—The Coast People". FoundSF. Retrieved June 4, 2018.
9. ^ Aker, Raymond (1970). REPORT OF FINDINGS RELATING TO THE IDENTIFICATION OF SIR FRANCIS DRAKE'S ENCAMPMENT AT POINT REYES NATIONAL SEASHORE (PDF). pp. 338–340.
10. ^ Charles F. Lumis, ed. (1900). "Narrative of the Pilot Morera, who passed through the North Sea to the South Sea through the Strait". The Land of Sunshine, the Magazine of California and the West. No. February. pp. 184–186.
11. ^ Albert, Salvador Bernabeu; Redondo, Jose Maria Garcia (2011). "The representations of San Francisco (California): a portable harbor in the fragile geography of the North Pacific". Antíteses. 4 (8): 461–492. doi:10.5433/1984-3356.2011v4n8p461. S2CID 128670900.
12. ^ "Group of men standing around original shoreline tablet". delivery.library.ca.gov. San Francisco, California. 1921. Retrieved October 6, 2021.
13. ^ Alta California, September 7, 1869
14. ^ "Cprr.org".
15. ^ Schneider, E. J. (January 1913). "Construction Problems, Dumbarton Bridge, Central California Railway". Proceedings of the American Society of Civil Engineers. 39 (1): 117–128. Retrieved March 14, 2016.
16. ^ Emory, Jerry (1995). "Dumbarton Bridge & Piers to Moffett Field". In Gustaitis, Rasa (ed.). San Francisco Bay Shoreline Guide. Berkeley, California: University of California Press. p. 48\. ISBN 0-520-08878-6. Retrieved March 15, 2016.
17. ^ "The old Dumbarton Bridge: Did you see it fall into the bay?". January 17, 2017.
18. ^ The Barrier Broken – Vallejo Evening Chronicle, May 21, 1927
19. ^ "Two Bay Area Bridges". U.S. Department of Transportation. January 18, 2005. Archived from the original on October 11, 2009. Retrieved June 13, 2008.
20. ^ "Key Dates - Moments & Events | Golden Gate". www.goldengate.org.
21. ^ "Frisco Adds Another Bridge To Skyline". Sarasota Herald-Tribune. August 16, 1956. Retrieved March 1, 2016.
22. ^ "San Mateo–Hayward Bridge Facts". California Department of Transportation. 1995. Retrieved January 14, 2015.
23. ^ "History". Save the Bay. Retrieved July 14, 2015.
24. ^ "Bay Area Census". www.bayareacensus.ca.gov. Retrieved October 31, 2018.
25. ^ State Water Resources Control Board Water Quality Control Policy for the Enclosed Bays and Estuaries of California (1974) State of California
26. ^ "Spatial History Project".
27. ^ "Hidden Ecologies » Blog Archive » Arden Salt Works". November 17, 2005.
28. ^ "Salt Marsh Harvest Mouse" (PDF). South Bay Salt Pond Restoration Project. Archived (PDF) from the original on March 20, 2017. Retrieved September 25, 2019.
29. ^ Osborn, Liz. "Average Ocean Water Temperatures at San Francisco". Current Results Nexus. Retrieved October 19, 2013.
30. ^ David Perlman (November 8, 2010). "Porpoises return to SF Bay – scientists study why". San Francisco Chronicle. Retrieved July 25, 2011.
31. ^ "Harbor Porpoise Project". Golden Gate Cetacean Research. Retrieved July 25, 2011.
32. ^ Harbor Porpoise (Phocoena phocoena): San Francisco-Russian River Stock (PDF) (Report). National Marine Fisheries Service. October 15, 2009. Retrieved July 25, 2011.
33. ^ Conaway, CH; Black, FJ; Grieb, TM; Roy, S; Flegal, AR (2008). Mercury in the San Francisco Estuary. Rev Environ Contam Toxicol. Reviews of Environmental Contamination and Toxicology. Vol. 194\. pp. 29–54. doi:10.1007/978-0-387-74816-0_2. ISBN 9780387748153. PMID 18069645.
34. ^ Bailey, Eric (November 9, 2007). "Oil oozes in S.F. Bay after ship hits bridge". Los Angeles Times. Archived from the original on March 22, 2019.
35. ^ "Corkscrew Slough". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
36. ^ Rebecca Sutton, Da Chen, Jennifer Sun, Denise J. Greig, and Yan Wu (2019). "Characterization of brominated, chlorinated, and phosphate flame retardants in San Francisco Bay, an urban estuary". Science of the Total Environment. 652: 212–223. Bibcode:2019ScTEn.652..212S. doi:10.1016/j.scitotenv.2018.10.096. PMID 30366322. Retrieved March 16, 2019.`{{cite journal}}`: CS1 maint: uses authors parameter (link)
37. ^ Barnard, P. L.; Hanes, D. M.; Rubin, D. M.; Kvitek, R. G. (July 18, 2006). "Giant Sand Waves at the Mouth of San Francisco Bay" (PDF). Eos. 87 (29): 285, 289. Bibcode:2006EOSTr..87..285B. doi:10.1029/2006EO290003. Retrieved January 2, 2017.
38. ^ Sandifur, Marilyn (September 18, 2009). "50 Feet Delivered!". Port of Oakland. Retrieved January 3, 2017.
39. ^ United States. Army. Corps of Engineers. San Francisco District, Port of Oakland (1998). Oakland harbor navigation improvement (−50-foot) project: draft environmental impact statement/environmental impact report: executive summary. U.S. Army Corps of Engineers, San Francisco District.
40. ^ "USA: Port of Oakland Secures USD 18 Million in Federal Funding for Dredging Project". Dredging Today. June 1, 2011. Retrieved March 22, 2012.
41. ^ "USA: Congresswoman Helps Oakland Port Reach Major Funding Milestone for Deepening Project". Dredging Today. March 21, 2012. Retrieved March 22, 2012.
42. ^ Matthews, Mark (March 22, 2012). "Huge container ship cruises into Port of Oakland". ABC7. San Francisco: KGO-TV/DT. Retrieved March 23, 2012.
43. ^ Admin, OEHHA (December 30, 2014). "San Francisco Bay". OEHHA. Retrieved June 13, 2018.

## Literature[edit | edit source]

* The Bay of San Francisco: the metropolis of the Pacific Coast and its suburban cities: a history. Volume I. by Lewis Publishing Company, Chicago, Ill. Published 1892 Contains index to biographical sketches
* Volume II – Biographies

## External links[edit | edit source]

Wikimedia Commons has media related to San Francisco Bay.

File:Wikisource-logo.svg

Wikisource has the text of the 1879 American Cyclopædia article San Francisco Bay.

* San Francisco Bay: Portrait of an Estuary, David Sanger and John Hart, University of California Press
* Barging In – A Short History of Liveaboards on the Bay Archived August 19, 2018, at the Wayback Machine
* The Islands of San Francisco Bay, James A. Martin | Michael T. Lee, Down Window Press
* Army Corps of Engineers Bay Model: Working scale model of the Bay
* SF Bay Kayak, Canoe, and Boat Launch Ramp guide. A collaboratively edited guide to the SF bay.
* BoatingSF.com: Photos of SF Bay and its boats, plus online cruising guide
* Save San Francisco Bay: Protect and Restore San Francisco Bay
* sfbaywildlife.info Guide to San Francisco Bay wildlife
* Early History of the California Coast, a National Park Service Discover Our Shared Heritage Travel Itinerary
* Cartography & History The representations of San Francisco Bay: a portable harbor in the fragile geography of the North Pacific
* San Francisco Estuary and Watershed Science: a peer-reviewed online science journal

* v
* t
* e

San Francisco Bay Area

Bodies of water|

* Bodega Bay
* Carquinez Strait
* Clifton Forebay
* Golden Gate
* Grizzly Bay
* Guadalupe River
* Half Moon Bay
* Lake Berryessa
* Napa River
* Oakland Estuary
* Petaluma River
* Richardson Bay
* Richmond Inner Harbor
* Russian River
* Sacramento River
* San Francisco Bay
* San Leandro Bay
* San Pablo Bay
* Sonoma Creek
* Suisun Bay
* Tomales Bay

San Francisco Bay Area

Counties|

* Alameda
* Contra Costa
* Marin
* Napa
* San Francisco
* San Mateo
* Santa Clara
* Solano
* Sonoma

Major cities|

* San Francisco
* San Jose
* Oakland

Cities and towns
100k–250k|

* Antioch
* Berkeley
* Concord
* Daly City
* Fairfield
* Fremont
* Hayward
* Richmond
* San Mateo
* Santa Clara
* Santa Rosa
* Sunnyvale
* Vacaville
* Vallejo

Cities and towns
50k–99k|

* Alameda
* Brentwood
* Castro Valley
* Cupertino
* Dublin
* Gilroy
* Livermore
* Milpitas
* Mountain View
* Napa
* Novato
* Palo Alto
* Petaluma
* Pittsburg
* Pleasanton
* Redwood City
* San Leandro
* San Rafael
* San Ramon
* South San Francisco
* Union City
* Walnut Creek

Cities and towns
25k–50k|

* Belmont
* Benicia
* Burlingame
* Campbell
* Danville
* East Palo Alto
* Foster City
* Hercules
* Lafayette
* Los Altos
* Los Gatos
* Martinez
* Menlo Park
* Morgan Hill
* Newark
* Oakley
* Pacifica
* Pleasant Hill
* Rohnert Park
* San Bruno
* San Carlos
* San Lorenzo
* San Pablo
* Saratoga
* Suisun City
* Windsor

Cities and towns
10k–25k|

* Alamo
* Albany
* American Canyon
* Ashland
* Bay Point
* Cherryland
* Clayton
* Discovery Bay
* Dixon
* El Cerrito
* El Sobrante
* Emeryville
* Fairview
* Half Moon Bay
* Healdsburg
* Hillsborough
* Larkspur
* Millbrae
* Mill Valley
* Moraga
* North Fair Oaks
* Orinda
* Piedmont
* Pinole
* San Anselmo
* Sonoma
* Stanford
* Tamalpais-Homestead Valley

Sub-regions|

* East Bay
* North Bay
* San Francisco Peninsula
* Santa Clara Valley

* Homelessness
* Politics
* Sports
* Transportation

* v
* t
* e

San Francisco Bay watershed

Outline|

* Hydrography
* Ecology
* List of tributaries
* List of lakes

San Francisco Bay

Subdivisions|

Major
San Francisco Bay
Suisun Bay
San Pablo Bay
Minor
Golden Gate
Grizzly Bay
Richardson Bay
San Rafael Bay
Richmond Inner Harbor
San Leandro Bay
Former
Yerba Buena Cove
Mission Bay

Waterways|

Rivers
San Joaquin
Sacramento
Napa
Guadalupe
Petaluma
Creeks (discharging into the Bay)
Alameda
Baxter
Cerrito
Codornices
Coyote (Santa Clara)
Coyote (Marin)
San Leandro
San Lorenzo
Schoolhouse
Temescal
Sausal
Redwood
San Mateo
Sonoma
Corte Madera
Arroyo Corte Madera del Presidio
San Rafael
Miller
Novato
Tolay
San Francisquito
Pacheco
Alhambra
Adobe
Rodeo
Refugio
Pinole
Garrity
Rheem
Karlson
San Pablo
Castro
Wildcat
Fluvius Innominatus
Marin (Alameda County)
Strawberry
Easton
Mission Creek
Reservoirs
Calaveras Reservoir
Lafayette Reservoir
Straits and estuaries
Clifton Court Forebay
Carquinez Strait
Oakland Estuary
Raccoon Strait
Sacramento–San Joaquin River Delta
Stockton Deepwater Shipping Channel
Watersheds
Laguna Creek Watershed
Guadalupe watershed

Parks and
protected areas|

* Don Edwards National Wildlife Refuge
* San Pablo Bay National Wildlife Refuge
* Eden Landing Ecological Reserve
* Hayward Regional Shoreline
* Hayward Shoreline Interpretive Center
* Crown Memorial State Beach
* McLaughlin Eastshore State Park
* Emeryville Crescent State Marine Reserve
* Point Isabel Regional Shoreline
* César Chávez Park
* Brooks Island Regional Preserve
* Point Pinole Regional Shoreline
* Antioch Dunes National Wildlife Refuge
* Coyote Point Recreation Area
* Middle Harbor Shoreline Park
* National Estuarine Research Reserve
* China Camp State Park
* San Francisco Maritime National Historical Park
* SF Bay Trail
* Oyster Bay Regional Shoreline
* Big Break Regional Shoreline
* Palo Alto Baylands Nature Preserve

Islands and
peninsulas|

Major islands
Alameda
Alcatraz
Angel
Treasure Island
Yerba Buena
Minor
Brooks
Bair
Bay Farm
Belvedere
Brother
Castro Rocks
Coast Guard
Greco
Hooks Island
Mare
Red Rock
The Sisters
Marin Islands
Roe
Ryer
Seal Islands
Peninsulas/infill
Albany Bulb
Brisbane Baylands
Point Isabel
Foster City
Fleming Point
Hunters Point
Sierra Point
Steamboat Point

Wetlands|

* Baylands
* Belmont
* Chelsea
* Cordelia
* Crissy Field
* Hoffman
* Meeker
* Mowry
* Napa Sonoma
* Point Molate
* Salt ponds
* Seal
* Stege
* Steinberger
* Suisun
* Westpoint

Bridges
and tubes|

Bridges
San Francisco–Oakland

Eastern span replacement
Richmond–San Rafael
San Mateo–Hayward
Dumbarton
Dumbarton Rail Bridge (inactive)
Golden Gate
Benicia–Martinez
Antioch
Carquinez
Leimert
Park Street
Fruitvale
High Street
Bay Farm Island
Tubes
Posey/Webster Street
Transbay

Ferries|

* Angel Island–Tiburon Ferry
* Blue & Gold Fleet
* Golden Gate Ferry
* San Francisco Bay Ferry (WETA)

Ports and
marinas|

* Port of San Francisco
* Port of Oakland
* Port of Richmond
* Hunters Point Naval Shipyard
* Mare Island Naval Shipyard
* Port of Redwood City
* Berkeley Marina
* Oyster Point Marina/Park
* Westpoint Harbor
* Foster City Marina (proposed)

Other|

History
Delta and Dawn
Discovery Site
Humphrey the Whale
San Leandro Oyster Beds
Richmond Shipyards
U.S. Army Corps of Engineers Bay Model
Harold Gilliam
Marincello
Ecology
Golden Gate Biosphere Reserve
Cosco Busan oil spill
Thicktail chub
Delta smelt
Conservation and Development Commission
The Watershed Project
Save The Bay
Citizens for East Shore Parks
Friends of Five Creeks
Urban Creeks Council
1971 oil spill
Greenbelt Alliance
The Bay Institute
Reber Plan
San Francisco Baykeeper
San Francisco Estuary and Watershed Science
Estuary Partnership
Transportation
Ridgway's rail/California clapper rail
Water Trail
Transportation in the San Francisco Bay Area

* Portal
* Category

* v
* t
* e

Ramsar sites in the United States

* Ash Meadows National Wildlife Refuge
* Bad River Slough
* Bitter Lake National Wildlife Refuge
* Bolinas Lagoon
* Cache River National Wildlife Refuge
* Caddo Lake
* Cape May National Wildlife Refuge
* Catahoula Lake
* Chesapeake Bay
* Cheyenne Bottoms
* Congaree National Park
* Connecticut River
* Corkscrew Swamp Sanctuary
* Cypress Creek National Wildlife Refuge
* Delaware Bay
* Dixon Waterfowl Refuge
* Elkhorn Slough
* Emiquon National Wildlife Refuge
* Everglades National Park
* Edwin B. Forsythe National Wildlife Refuge
* Francis Beidler Forest
* Grasslands Wildlife Management Area
* Heron Pond – Little Black Slough Nature Preserve
* Horicon Marsh
* Humbug Marsh
* Izembek National Wildlife Refuge
* Kakagon Sloughs
* Kawainui Marsh
* Laguna de Santa Rosa
* Missisquoi National Wildlife Refuge
* Niagara River Corridor
* Okefenokee National Wildlife Refuge
* Olentangy River Wetland Research Park
* Palmyra Atoll
* Pelican Island National Wildlife Refuge
* Quivira National Wildlife Refuge
* San Francisco Bay
* Sand Lake National Wildlife Refuge
* Tijuana River National Estuarine Research Reserve
* Tomales Bay
* Upper Mississippi River National Wildlife and Fish Refuge
* White River National Wildlife Refuge

*[c.]: circa
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