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Mudflats or mud flats , also known as tidal flats or, in Ireland, slob or slobs , are coastal wetlands that form in intertidal areas where sediments have been deposited by tides or rivers . A global analysis published in 2019 suggested that tidal flat ecosystems are as extensive globally as mangroves , covering at least 127,921 km (49,391 sq mi) of the Earth 's surface. They are found in sheltered areas such as bays , bayous , lagoons , and estuaries ; they are also seen in freshwater lakes and salty lakes (or inland seas) alike, wherein many rivers and creeks end. Mudflats may be viewed geologically as exposed layers of bay mud , resulting from deposition of estuarine silts , clays and aquatic animal detritus . Most of the sediment within a mudflat is within the intertidal zone , and thus the flat is submerged and exposed approximately twice daily.

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35-675: (Redirected from Los Angeles Harbor ) Los Angeles harbor may refer to: Port of Los Angeles , and nearby Port of Long Beach in San Pedro Bay Los Angeles Harbor Region , an area of land in Los Angeles City/County sited near the seaports Los Angeles Harbor College Los Angeles Harbor Light Redondo Beach, California , on Santa Monica Bay, an early port and now host to King Harbor Marina del Rey, California , on Santa Monica Bay,

70-487: A 5.5% increase over 2016's record-breaking year of 8.8 million TEU. It's the most cargo moved annually by a Western Hemisphere port. The port is the busiest port in the United States by container volume, the 19th-busiest container port in the world, and the 10th-busiest worldwide when combined with the neighboring Port of Long Beach . The port is also the number-one freight gateway in the United States when ranked by

105-677: A dozen pilots , including two chiefs. Pilots have specialized knowledge of the harbor and San Pedro Bay. They meet the ships waiting to enter the harbor and provide advice as the vessel is steered through the congested waterway to the dock. For public safety protection inside the port and of its businesses, the Port of Los Angeles utilizes the Los Angeles Port Police for police service, the Los Angeles Fire Department (LAFD) to provide fire and EMS services,

140-535: A large population of wildlife, and are a key habitat that allows tens of millions of migratory shorebirds to migrate from breeding sites in the northern hemisphere to non-breeding areas in the southern hemisphere. They are often of vital importance to migratory birds , as well as certain species of crabs , mollusks and fish . In the United Kingdom mudflats have been classified as a Biodiversity Action Plan priority habitat. The maintenance of mudflats

175-916: Is a seaport managed by the Los Angeles Harbor Department , a unit of the City of Los Angeles . It occupies 7,500 acres (3,000 ha) of land and water with 43 miles (69 km) of waterfront and adjoins the separate Port of Long Beach . Promoted as "America's Port", the port is located in San Pedro Bay in the San Pedro and Wilmington neighborhoods of Los Angeles , approximately 20 miles (32 km) south of downtown . The port has 25 cargo terminals, 82 container cranes, 8 container terminals, and 113 miles (182 km) of on-dock rail. The port's top imports were furniture, automobile parts, apparel, footwear, and electronics. In 2019,

210-659: Is a currently non-operational heritage trolley line for public transit along the waterfront in San Pedro . Prior to its closure in 2015, it used vintage and restored Pacific Electric Red Cars to connect the World Cruise Center, Downtown San Pedro, Ports O' Call Village , and the San Pedro Marina. Oceangoing ships visiting ports are a large source of nitrogen oxides in Southern California. Heavy-duty diesel trucks, that are also part of

245-450: Is an independent, self-supporting department of the government of the City of Los Angeles. The port is under the control of a five-member Board of Harbor Commissioners appointed by the mayor and approved by the city council, and is administered by an executive director. The port maintains an AA bond rating, the highest rating attainable for self-funded ports. As of 2016 , the port had about

280-521: Is important in preventing coastal erosion. However, mudflats worldwide are under threat from predicted sea level rises , land claims for development, dredging due to shipping purposes, and chemical pollution . In some parts of the world, such as East and South-East Asia, mudflats have been reclaimed for aquaculture , agriculture , and industrial development. For example, around the Yellow Sea region of East Asia, more than 65% of mudflats present in

315-629: The Alameda Corridor . In 2011, no American port could handle ships of the PS-class Emma Mærsk and the future Maersk Triple E class size, the latter of which needs cranes reaching 23 rows. In 2012, the port and the U.S. Army Corps of Engineers deepened the port's main navigational channel to 53 feet (16 m), which is deep enough to accommodate the draft of the world's biggest container ships. However, Maersk had no plans in 2014 to bring those ships to America. In 2024

350-511: The U.S. Coast Guard for waterway security, Homeland Security to protect federal land at the port, the Los Angeles County Lifeguards to provide lifeguard services for open waters outside of the harbor, while Los Angeles City Recreation & Parks Department lifeguards patrol the inner Cabrillo Beach . The port's container volume was 9.3 million  twenty-foot equivalent units  (TEU) in calendar year 2019,

385-589: The "Bay of Smokes." The south-facing San Pedro Bay was originally a shallow mudflat , too soft to support a wharf . Visiting ships had two choices: stay far out at anchor and have their goods and passengers ferried to shore, or beach themselves. That sticky process is described in Two Years Before the Mast by Richard Henry Dana Jr. , who was a crew member on an 1834 voyage that visited San Pedro Bay. Phineas Banning greatly improved shipping when he dredged

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420-559: The LA Waterfront attracts thousands of visitors annually. Remodel and reconstruction was approved by the Los Angeles City Council. Development is set to be completed in 2020. Construction is expected to begin in 2017 at a partial project cost of $ 90 million, paid by the developer. The San Pedro Public Market is expected to open in 2020, with demolition beginning as early as November 2016. The Waterfront Red Car

455-415: The Port of Los Angeles has already surpassed its initial 2023 emission goals 8 years ahead of predicted time frame. The dramatic success to reduce emissions has seen a decrease in diesel particulate matter reduce 72%, sulfur oxides by 93%, and nitrogen oxide by 22% so far. The CAAP program was updated to 3.0 after this environmental successes of the initiatives. With the recent ramification of environment goals

490-412: The channel to Wilmington in 1871 to a depth of 10 feet (3.0 m). The port handled 50,000 tons of shipping that year. Banning owned a stagecoach line with routes connecting San Pedro to Salt Lake City, Utah , and Yuma, Arizona , and in 1868 he built a railroad to connect San Pedro Bay to Los Angeles , the first in the area. After Banning's death in 1885, his sons pursued their interests in promoting

525-696: The city of Los Angeles, funded and maintained by the Port of Los Angeles. In 2009, the Los Angeles Harbor Commission approved the San Pedro Waterfront and Wilmington Waterfront development programs, under the LA Waterfront umbrella. The LA Waterfront consists of a series of waterfront development and community enhancement projects covering more than 400 acres (160 ha) of existing Port of Los Angeles property in both San Pedro and Wilmington. With miles of public promenade and walking paths, acres of open space and scenic views,

560-448: The county's small-craft harbor (opened 1965) Port Ballona, California , failed harbor scheme circa 1887 Long Wharf (Santa Monica) , aka Port Los Angeles (1892–1920) See also [ edit ] Harbor Gateway, Los Angeles Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Los Angeles harbor . If an internal link led you here, you may wish to change

595-573: The early 1950s had been destroyed by the late 2000s. It is estimated that up to 16% of the world tidal flats have disappeared since the mid-1980s. Mudflat sediment deposits are focused into the intertidal zone which is composed of a barren zone and marshes. Within these areas are various ratios of sand and mud that make up the sedimentary layers. The associated growth of coastal sediment deposits can be attributed to rates of subsidence along with rates of deposition (example: silt transported via river) and changes in sea level. Barren zones extend from

630-592: The first Alternative Maritime Power (AMP) berth in 2004 and can provide up to 40 MW of grid power to two cruise ships simultaneously at both 6.6 kV and 11 kV, as well as three container terminals, reducing pollution from ship engines. In an effort to buffer the nearby community of Wilmington from the port, in June 2011 the Wilmington Waterfront Park was opened. The $ 2.8 million San Pedro Bay Ports Clean Air Action Program (CAAP) initiative

665-569: The freight-moving port complexes, emit exhaust with nitrogen oxides and particulate matter. The California Air Resources Board is working on reducing these sources of pollution that produce the nation's most polluted air smog and kill more than 3,500 Southern Californians each year. In 2021, the South Coast Air Quality Management District required warehouses in the port which do not cut emissions of carbon and pollutants to pay fees. The port installed

700-571: The global extent of tidal flats occurs within eight countries ( Indonesia , China , Australia , United States , Canada , India , Brazil , and Myanmar ) and that 44% of the world's tidal flats occur within Asia (56,051 km or 21,641 sq mi). A 2022 analysis of tidal wetland losses and gains estimates that global tidal flats experienced losses of 7,000 km (2,700 sq mi) between 1999 and 2019, which were largely offset by global gains of 6,700 km (2,600 sq mi) over

735-404: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Los_Angeles_harbor&oldid=1147371152 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Port of Los Angeles The Port of Los Angeles

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770-401: The lowest portion of the intertidal zone to the marsh areas. Beginning in close proximity to the tidal bars, sand dominated layers are prominent and become increasingly muddy throughout the tidal channels. Common bedding types include laminated sand, ripple bedding, and bay mud. Bioturbation also has a strong presence in barren zones. Marshes contain an abundance of herbaceous plants while

805-540: The port received 3 cranes capable of servicing ships up to 18,000 TEU. Los Angeles and Long Beach ports were some of the least efficient in the world, according to a 2022 ranking by the World Bank and IHS Markit. The World Cruise Center, located in San Pedro, Los Angeles , beneath the Vincent Thomas Bridge , has three passenger ship berths. The LA Waterfront is a visitor-serving destination in

840-527: The port's top exports were wastepaper , pet and animal feed, scrap metal and soybeans. In 2020 the port's top three trading partners were China (including Hong Kong ), Japan , and Vietnam . In 2022, the port, together with the adjoining Port of Long Beach , were considered amongst the world's least efficient ports by the World Bank and IHS Markit citing union protectionism and a lack of automation . In 1542, Juan Rodriquez Cabrillo discovered

875-535: The port, which handled 500,000 tons of shipping in that year. The Southern Pacific Railroad and Collis P. Huntington wanted to create Port Los Angeles at Santa Monica and built the Long Wharf there in 1893. However, the Los Angeles Times publisher Harrison Gray Otis and U.S. Senator Stephen White pushed for federal support of the Port of Los Angeles at San Pedro Bay. The Free Harbor Fight

910-492: The port. During the 1920s, the port surpassed San Francisco as the West Coast's busiest seaport. In the early 1930s, a massive expansion of the port was undertaken with the construction of a breakwater three miles out and over two miles in length. In addition to the construction of this outer breakwater, an inner breakwater was built off Terminal Island with docks for seagoing ships and smaller docks built at Long Beach. It

945-539: The port. In 1985, the port handled one million containers in a year for the first time. During the 2002 West Coast port labor lockout , the port had a large backlog of ships waiting to be unloaded at any given time. In 2000, the Pier 400 Dredging and Landfill Program, the largest such project in America, was completed. By 2013, more than half a million containers were moving through the Port every month. The port district

980-548: The same time period. In the past tidal flats were considered unhealthy, economically unimportant areas and were often dredged and developed into agricultural land. Some mudflats can be extremely treacherous to walk on. For example, the mudflats surrounding Anchorage, Alaska , are made from fine glacial-silt which does not easily separate out its water, and, although seemingly solid, can quickly gel and become like quicksand when disturbed by stepping on it. Four people are known to have become stuck up to their waists and drowned when

1015-444: The sediment layers consist of thin sand and mud layers. Mudcracks are a common as well as wavy bedding planes. Marshes are also the origins of coal/peat layers because of the abundant decaying plant life. Salt pans can be distinguished in that they contain thinly laminated layers of clayey silt. The main source of the silt comes from rivers. Dried up mud along with wind erosion forms silt dunes. When flooding, rain or tides come in,

1050-614: The tide came in, and many others are rescued from the Anchorage mudflats each year. On the Baltic Sea coast of Germany in places, mudflats are exposed not by tidal action, but by wind-action driving water away from the shallows into the sea. This kind of wind-affected mudflat is called Windwatt in German. Tidal flats, along with intertidal salt marshes and mangrove forests, are important ecosystems . They usually support

1085-456: The updates will look to reduce the emissions through efficient supply chain optimization. There has also been recent developments to increase port technologies advancement to promote the development of efficient and green port technologies. The CAAP also looks to be the lead role caretaker of fostering and improving the wildlife and ecosystem of the port. Mudflat A recent global remote sensing analysis estimated that approximately 50% of

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1120-521: The value of shipments passing through it. The port's top trading partners in 2019 were: The most-imported types of goods in the 2019 calendar year were, in order: furniture (579,405), automobile parts (340,546), apparel (312,655), and electronic products (209,622). The port is served by the Pacific Harbor Line (PHL) railroad. From the PHL, intermodal railroad cars go north to Los Angeles via

1155-572: Was implemented by the Board of Harbor Commissioners in October 2002 for terminal and ship operations programs targeted at reducing polluting emissions from vessels and cargo handling equipment . To accelerate implementation of emission reductions through the use of new and cleaner-burning equipment, the port has allocated more than $ 52 million in additional funding for the CAAP through 2008. As of May 2016,

1190-607: Was settled when San Pedro was endorsed in 1897 by a commission headed by Rear Admiral John C. Walker (who later went on to become the chair of the Isthmian Canal Commission in 1904). With U.S. government support, breakwater construction began in 1899, and the area was annexed to Los Angeles in 1909. The Los Angeles Board of Harbor Commissioners was founded in 1907. In 1912 the Southern Pacific Railroad completed its first major wharf at

1225-492: Was this improved harbor that hosted the sailing events for the 1932 Summer Olympics . During World War II , the port was primarily used for shipbuilding, employing more than 90,000 people. In 1959, Matson Navigation Company 's Hawaiian Merchant delivered 20 containers to the port, beginning the port's shift to containerization . The opening of the Vincent Thomas Bridge in 1963 greatly improved access to Terminal Island and allowed increased traffic and further expansion of

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