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Distributary

Distributary

A distributary is a river that branches off from a major river before it reaches the sea, particularly in a river delta. In Louisiana, for example, the Atchafalaya River splits from the Mississippi River. In some cases, a distributary can "steal" so much water from its parent that it can become the main route. This is actually a serious problem for New Orleans, because the Atchafalaya takes a steeper route to the Gulf of Mexico, and therefore takes more and more water from the Mississippi. This was recently stopped by the construction of the Old River Control Structure, a dam to control the outflow from the Mississippi into the Atchafalaya. Other notable distributaries are the Kollidam, a distributary of the Kaveri River, and the Hoogli River, a distributary of the Ganges River, both in India. The opposite of a distributary is a tributary. Category:Rivers

River

:For the Second World War frigate class, see River class frigate. For the state of Nigeria, see Rivers State. MyScene.]] A river is a large natural waterway. It is a specific term in the vernacular for large streams, stream being the umbrella term used in the scientific community for all flowing natural waterways. In the vernacular, stream may be used to refer to smaller streams, as may creek, run, fork, etc. Passage via a river or stream is the usual way rainfall on land finds its way to the ocean or other large body of water such as a lake. A river consists of several basic parts, originating from headwaters or a spring at the source, that flow into the main stream. Smaller side streams that join the river are tributaries. Water flow is normally confined to a channel, with a bottom or bed between banks. The lower end of a river is its base level, commonly called its mouth, a river typically widens at its end and forms what is known as a river delta or estuary.

Topography

estuary.]]A river conducts water by constantly flowing perpendicular to the elevation curve of its bed, thereby converting the positional energy of the water into kinetic energy. Where a river flows over relatively flat areas, the river will meander: start to form loops and snake through the plain by eroding the river banks. Loops that are formed are sometimes cut off, forming a shorter river channel and leaving a remnant, oxbow lake. Rivers that carry large amounts of sediment develop conspicuous deltas at their mouths. Rivers whose mouths are in saline tidal waters may form estuaries. There are 4 main types of rivers. These types are:
- Youthful river - a river with a steep gradient that has very few tributaries and flows quickly. Its channels erode deeper rather than wider.
- Mature river - a river with a gradient that is less steep than those of youthful rivers and flows more slowly than youthful rivers. A mature river is fed by many tributaries and has more discharge than a youthful river. Its channels erode wider rather than deeper.
- Old river - a river with a low gradient and low erosive energy. Old rivers are characterized by flood plains.
- Rejuvenated river - a river with a gradient that is raised by the earth's movement. Where a river descends quickly over sloped topography, rapids with whitewater or even waterfalls occur. Rapids are often used for recreational purposes (see Whitewater kayaking). Waterfalls are sometimes used as sources of energy, via watermills and hydroelectric plants. Rivers begin at their source in higher ground, either rising from a spring, forming from glacial meltwater, flowing from a body of water such as a lake, or simply from damp, boggy places where the soil is waterlogged. They end at their base level where they flow into a larger body of water, the sea, a lake, or as a tributary to another (usually larger) river. In arid areas rivers sometimes end by losing water to evaporation and percolation into dry, porous material such as sand, soil, or pervious rock. The area drained by a river and its tributaries is called its watershed or catchment basin. (Watershed is also used however to mean a boundary between catchment basins.) Starting at the mouth of the river and following it upstream as it branches again and again the resulting river network forms a dendritic (tree-like) structure that is an example of a natural random fractal.

Biology

The flora and fauna of rivers are much different from those of the ocean because the water is fresh (non-salty). Living things in a river must be adapted to the current of the moving water.

Pollution

Human pollution of rivers is common, and very few rivers in the world today are clean of man-made substances. The most common pollutant is sewage piped into rivers, but chemical pollution is also common, and industrial accidents (and/or negligence) account for much of the destruction of riparian biomes. Heated water dumped into rivers by power plants and factories also affects river life.

Navigation

The Rhine is the busiest river in the world for transport ships. Inland vessels use the river to reach the major cities in Germany, Eastern France and Switzerland to transport bulk goods, liquids, containers AND passengers into the hinterland of the Port of Rotterdam and the ports of Amsterdam and Antwerp. Many millions of tons of goods are transported upstream yearly from these three sea ports to the industries near Nijmegen, Duisburg, Düsseldorf, Neuss, Köln, Koblenz, Mainz, Mannheim, Karlsruhe, Strasbourg, Colmar, Mulhouse and Basel. The lower part of the river is navigable for the largest inland vessels (up to 135 meters long and 17 meters wide) with an available depth of more than 2,50 even at the lower water levels. The further upstream, the more depth restrictions: at low water periods draught of ships is often limited to 1,90 m. for the stretch around Bingen (between the mouths of the Mosel and the Main). Upstream from Karlsruhe the Rhine is the border between France and Germany. The French have canalized the river by means of a series of hydropower dams and double ship locks, thus ensuring a year round navigable depth of 3.50 meters. (Source: NoorderSoft Waterways Database)

Dams

In places where the elevation changes of a river are great, dams for hydroelectric plants and other purposes are often built. This disrupts the natural flow of the river, and creates a lake behind the dam. Often the building of dams affects the whole of the river, even the part above the dam, as migrating fish are hindered (see fish ladder), waterflow is no longer bounded by seasonal changes and sediment flow is blocked. Dams are useful in many ways, such as providing HEP, acting as regulator of river flow so as to regulate the occurrence of flooding, which is especially important to wet-rice agriculture, and also to improve navigation and transport on the river. Often, dams such as Hoover Dam along Colorado River become famous tourist attractions. However, critics of dams, especially 'Green' advocates, argue that dams remove upper-river biodiversity such as through deforestation and forced migration of rural villages and indigenous tribes. Furthermore, trapping of river sediments behind the dams lead to salination and loss of nutrients for down-water fish. It also raises concern of eathquakes due to instablity of incompetent dams which have to support thousands of tonnes of sediments behind them. One very famous, and problematic, dam is the Aswan High Dam in the Nile.

Flooding

Flooding is a natural part of a river's cycles. Human activity, however, has upset the natural way flooding occurs by walling off rivers and straightening their courses. Removal of bogs, swamps and other wetlands in order to produce farmland has reduced the absorption zones for excess water and made floods into sudden disasters rather than gradual increases in water flow. In ancient Egypt, life was made possible through the floods of the Nile and the accompanying silt and sediment which enriched the fields with fresh nutrients. Nowadays, since people have built on these floodplains, floods are disasters, causing untold property loss each year. Human interference in the form of deforestation can also worsen conditions. The removal of vegetation leads to a reduction in Interception (vegetation stopping precipitation) and the 'weakening' of soil since plant roots no longer hold it together. As a result there is a reduced Infiltration capacity (how much water the soil can hold) and greater infiltration (precipitation going into the ground). This leads to faster soil saturation and therefore greater overland flow (also known as surface run off) and therefore, there are flash floods as the lag time decrease.

Logjams

Logjams are barriers within rivers, created by dead and uprooted trees. Over time, the obstruction prevents further logs to bypass, resulting in the creation of new network channels. According to author David R. Montgomery in his book, King of Fish, a logjam also causes water to buildup within a small space, forming peaceful pools within the main channel for young salmon to live within. The existence of these deep pools along with the complex web of channels creates an ideal salmon habitat. Today, many believe that the rebuilding of salmon runs is contingent upon reproducing the same environment shaped by logjams. As a result, many scientists have attempted to recreate artificial logjams. Marc Duboiski and Mike Ramsey of the Salmon Recovery Funding board staff, George Pess of the National Marine Fisheries Service, and Kevin Bauersfeld of Washington Department of Fish and Wildlife have prepared the Report to the Salmon Recovery Funding Board On the Engineered Log Jam (ELJ) Workshop ([http://iac.wa.gov/Documents/SRFB/Log_Jam_Report.pdf#search='log%20jams%20and%20salmon']), with the hope of mimicking natural logjams. Report to the Salmon Recovery Funding Board On the Engineered Log Jam (ELJ) Workshop."]]

Management

In its natural state a river may be inconvenient to man in a variety of ways. Rivers in inhabited areas have therefore been managed or controlled to make them more useful and less disruptive to human activity.
- The river channel may be dredged to make it deeper for navigation or to prevent flooding.
- Dams (see above) or weirs may be built to control the flow, store water, or extract energy.
- Levees may be built to prevent flooding.
- Sluice gates provide a means of controlling flow and adjusting river levels.
- floodways may be added to draw off excess river water in times of flood.
- Canals connect rivers to one another for water transfer or navigation.
- River courses may be modified to improve navigation, or straightened to increase the flow rate. River management is an ongoing activity as rivers tend to 'undo' the modifications made by man. Dredged channels silt up, sluice mechanisms deteriorate with age, levees and dams may suffer seepage or catastrophic failure.

River lists

(See also :Category:Lists of rivers.)

The world's ten longest rivers

It is difficult to measure the length of a river, mainly because rivers have a fractal property, which means that the more precise the measure, the longer the river will seem. Also, it's hard to state exactly where a river begins or ends, as very often, upstream, rivers are formed by seasonal streams, swamps, or changing lakes. This is an average measurement. # Nile (6,690 km) # Amazon (6,400 km) # Yangtze (Chang Jiang) (6,380 km) # Mississippi-Missouri (6,270 km) # Ob-Irtysh (5,570 km) # Huang He (Yellow) (5,464 km) # Amur (4,410 km) # Congo (4,380 km or 4,670 km). (The source of this river is disputed.) # Lena (4,260 km) # Mackenzie (4,240 km) For a longer list see Longest rivers. This also gives more information on measuring river lengths.

Well-known rivers (in alphabetic order)

- Aa - multiple rivers in Europe
- Amazon - largest river in the world
- American
- Amu Darya
- Amur - principal river of eastern Siberia
- Arkansas - major tributary of Mississippi River
- Arno - river through Florence
- Arvandrud (Shatt al-Arab) the large border river between Iran and Iraq.
- Brahmaputra - principal river in North East India & Tibet
- Chao Phraya - principal river of Thailand
- Colorado (Argentina)
- Colorado (U.S.) - principal river of American West
- Columbia - principal river of Pacific Northwest
- Congo - principal river of central Africa
- Danube - principal river of central and southeastern Europe
- De La Plata - the widest river in the world. South America
- Ebro - river in northwest Spain
- Elbe - major German river, Hamburg is situated on it
- Euphrates - twin principal river of Mesopotamia(Iraq)
- Ganges - principal river of India
- Han-gang - river of Seoul
- Helmand River - Principle river of (Afghanistan)
- Hari Rud (Afghanistan)
- Huang He (Yellow) - principal river of China
- Hudson - principal river of New York
- Indus - principal river of Pakistan
- Jordan - principal river of Israel
- Karun - principal (navigable) river of southern Iran.
- Kaveri - principal river of South India
- Lena - principal river of northeastern Siberia
- Mackenzie - longest river in Canada
- Magdalena - principal river of Colombia
- Main - river in Germany
- Mekong - principal river of Southeast Asia
- Mersey - river on which sits the English city of Liverpool
- Meuse - principal river of the southern provinces of the Netherlands and eastern Belgium.
- Mississippi - principal river of central United States
- Missouri - principal river of the Great Plains
- Murray - principal river of southeastern Australia
- Niger - principal river of west Africa
- Nile - Possibly the longest river in the world (or second after the Amazon)
- Ob - large river of Siberia
- Odra - major river in Eastern Europe
- Ohio - largest river between Mississippi and Appalachians
- Orinoco - principal river of Venezuela
- Parana - major South American river
- Paraguay - principal tributary of Parana river and major South American river in Brazil, Bolivia, Paraguay and Argentina
- Po - principal river of Italy
- Potomac River - principal river of the District of Columbia in the United States
- Rhine - principal river of northwestern Europe
- Rhône - principal river of southern France
- Rio Grande - border between United States and Mexico
- Saint Lawrence - drains Great Lakes
- Seine - river of Paris
- Segura- in southeast Spain
- Severn- longest river in Great Britain
- Shinano-gawa - longest river in Japan
- Snake - largest tributary to the Columbia river in Washington
- Tajo - largest river in the Iberian Peninsula
- Tay - largest river in Scotland
- Thames - river of London
- Tiber - river of Rome
- Tigris - twin principal river of Mesopotamia(Iraq)
- Tonegawa - largest river in Japan
- Vistula - principal river of Poland
- Volga - principal river of Russia
- Yangtze (Chang Jiang) - longest river in China
- Yenisei - large river of Siberia
- Yukon - principal river of Alaska and Yukon Territory
- Zambezi - principal river of southeastern Africa

Other lists

- List of waterways
- List of rivers by continent
- List of rivers of Europe
- Rivers of the United Kingdom
- List of rivers of Asia
- List of rivers of Africa
- List of rivers of Australia
- List of rivers of New Zealand
- List of rivers of the Americas
- List of rivers of Oceania
- List of river name etymologies

Rivers in myth and fiction

Real rivers

- The Thames in Edward Rutherfurd's London.
- The Thames in Jerome K. Jerome's Three Men in a Boat.
- The Thames and the Congo in Joseph Conrad's Heart of Darkness.
- The Mississippi in Mark Twain's Huckleberry Finn.
- The River Liffey through Dublin in James Joyce's Finnegans Wake.

Mythological rivers

- In Greek mythology, the Acheron, Cocytus, Phlegethon, Lethe and Styx (the five rivers of Hades); and the Eridanus.
- The Alph, an underground river imagined by various mystics and mentioned in Coleridge's poem Kubla Khan.
- The Sambation river stops flowing every Saturday.

Fictional rivers

- River Ankh traversing the city of Ankh-Morpork in Terry Pratchett's Discworld series.
- Chocolate river in Willy Wonka and the Chocolate Factory.
- River Djel in the country of Djelibeybi in Terry Pratchett's Discworld series.
- The River in the Riverworld novels of Philip José Farmer.
- Rivers of Middle-earth in various works of J. R. R. Tolkien.

External links

- [http://www.srbc.net/about.htm Management: River Basin Commissions]. Category:Bodies of water Category:Geomorphology zh-min-nan:Hô ja:川 ko:강 ms:Sungai simple:River th:แม่น้ำ

Sea

]] A sea is a large expanse of saline water connected with an ocean, or a large, usually saline, lake that lacks a natural outlet such as the Caspian Sea and the Dead Sea. The Sea of Galilee is a small freshwater lake without a natural outlet, but the term was applied to it anyway. The term is used colloquially as synonymous with ocean, as in the tropical sea or down to the sea shore, or even sea water referring to water of the ocean. Large lakes are sometimes referred to as inland seas, such as the Great Lakes. Many of these seas can be very beautiful. Many seas are marginal seas.

List of seas, divided by ocean

Extraterrestrial seas

Lunar maria are vast basaltic plains on the Moon that were thought to be bodies of water by early astronomers, who referred to them as "seas". Liquid water is known to have existed on the surface of Mars in the distant past, and several basins on Mars have been proposed as dry sea beds. The largest is Vastitas Borealis; others include Hellas Planitia and Argyre Planitia. Liquid water is thought to be present under the surface of several moons, most notably Europa. Liquid hydrocarbons are thought to be present on the surface of Titan, though it may be more accurate to describe them as "lakes" rather than "seas". The distribution of these liquid regions will hopefully be better known after the arrival of the Cassini probe.

Science

The term "sea" has also been used in quantum physics. Dirac sea is an interpretation of the negative energy states that comprises the vacuum.

River delta

A delta is the mouth of a river where it flows into an ocean, sea, or lake, building outwards (as a deltaic deposit) from sediment carried by the river and deposited as the water current is dissipated. Deltaic deposits of larger, heavily-laden rivers are characterised by the river channel dividing into multiple streams (distributaries), these divide and come together again to form a maze of active and inactive channels. A related notion is estuary, which is another type of the river mouth.

Delta formation

estuary, near Narsarsuaq.]] At the final course of a river, when it enters the sea, it mixes with the surrounding water, and its velocity of flow is checked, causing it to deposit its load of gravel, sand, silt and clay. The first materials deposited are the gravel and sand, as they are by far the heaviest and coarsest. Next to be dropped is the silt. Because it is fine, the clay is transported in suspension quite far out in the sea. When salt water causes the clay to flocculate, it becomes heavier and sinks. As layers upon layers of alluvial materials are deposited, a platform of alluvium is built up and it eventually rises above the water, which can now be called the delta. The water then overflows the banks into different channels called distributaries, which build up their own levees. The vegetation that later grows on the alluvium stabilizes the delta. Where delta formation is river-dominated and less subject to tidal or wave action, a delta may take on a multi-lobed shape which resembles a bird's foot. The Mississippi Delta is an example of this type. The most famous delta is that of the Nile River, and it is this delta from which the term is derived, because the Nile delta has a very characteristic triangular shape, like the (upper-case) Greek letter delta (

\Delta

). Other rivers with notable deltas include the Ganges/Brahmaputra combination (this delta spans most of Bangladesh), the Niger, the Amazon, the Mississippi, the Sacramento-San Joaquin, the Rhine, the Rhône, the Danube, the Ebro, the Volga, the Lena, the Tigris-Euphrates, the Indus, the Krishna-Godavari, the Kaveri, the Irrawaddy, and the Mekong. In rare cases the river delta is located inside of a large valley and is called an inverted river delta. Sometimes a river will divide into multiple branches in an inland area, only to rejoin and continue to the sea; such an area is known as an inland delta, and often occur on former lake beds. The Niger Inland Delta is the most famous example; another is the Danube Inland Delta on the Little Alföld. Little Alföld. These rock formations, which sometimes contain coal, cap the thick series of sedimentary rocks of the Allegheny Plateau in eastern North America, ]]

List of deltas

- Camargue (Rhône River Delta)
- Colorado River Delta
- Danube Delta
- Ganges-Brahmaputra Delta
- Indus River Delta
- Lena Delta
- Mekong Delta
- Mississippi River Delta
- Niger Inland Delta (inland delta)
- Niger River Delta (Oil Rivers)
- Nile Delta
- Okavango Delta (inland delta)
- Pearl River Delta
- Rhine-Meuse-Scheldt Delta
- Sacramento River Delta
- Volga Delta
- Yangtze River Delta
- Yukon Delta

External link

- [http://www.geol.lsu.edu/WDD/DELTA_LISTS/continents.htm Louisiana State University Geology] - World Deltas Category:Landforms Category:Ecology
- ko:삼각주 ja:三角州

Atchafalaya River

The Atchafalaya River is a distributary of the Mississippi and Red rivers, approximately 170 mi (270 km) long, in south central Louisiana in the United States. It is navigable and provides a significant industrial shipping channel for the state of Louisiana, as well as the cultural heart of the Cajun Country. The maintenance of the river as a navigable channel of the Mississippi has been a significant project of the U.S. Army Corps of Engineers for over a century. It is formed near Simmesport at the confluence of the Red River with the Mississippi, where the Mississippi connects to the Red by the 7 mi (11 km) canalized Old River. It receives the water of the Red as well as part of the water of the Mississippi, which itself continues in its main channel to the southeast. It meanders south as a channel of the Mississippi, through extensive levees and floodways, past Morgan City, and empties into the Gulf of Mexico in Atchafalaya Bay approximately 15 mi (25 km) south of Morgan City. The Atchafalaya Basin, the surrounding plain of the river, is filled with bayous, baldcypress swamps, and marshes, that give way to more brackish conditions and end in the Spartina grass marshes. The basin is susceptible to heavy flooding and is sparsely inhabited. The few roads that cross it follow the tops of levees. Interstate 10, which crosses the Basin on elevated pillars west of Baton Rouge, is a continuous 18.2 mile bridge. Geologically, the Atchafalaya has served periodically as the main channel of the Mississippi through the process of delta switching, which has built the extensive delta plain of the river. Since the early 20th century, because of manmade alterations in the channel, the Mississippi has sought to change its main channel to Atchafalaya. By law a regulated proportion of the water from the Mississippi is diverted into the Atchafalaya at the Old River Control Structure.

Degradation of the buffer marshes

The control of the river's floods, along with those of the Mississippi, has become a controversial issue in recent decades. It is now widely suspected that the channeling of the river and subsequent lowering of siltation rates has resulted in severe degradation of the surrounding saltmarsh wetlands as well as widespread submerging of populated and agricultural lands of the bayou country. The US Geological Survey (USGS) reports that over 29 square miles (75 square kilometers) of land is lost to the sea each year[http://marine.usgs.gov/fact-sheets/LAwetlands/lawetlands.html]. The coastal salt marshes form a buffer zone protecting the entire coast of Louisiana from the effects of hurricanes in the Gulf of Mexico and dissipating their accompanying storm surges. The marshes depend on replenishment from deposited silt, which is now being deposited over the edge of the continental shelf, due to the artificially canalized flow of the Mississippi. From the 1950s through 1970s, the oil industry dredged deep channels into the marsh so that they could move barges in as work platforms. The edges continued to degrade, until wide shallow channels in the saltmarsh have resulted. The disappearance of the delta country is considered by many environmentalists, as well as by the State of Louisiana, to be one of the most significant ecological threats in the United States. The loss of the delta lands was discussed by author Mike Tidwell in his 2003 book Bayou Farewell: The Rich Life and Tragic Death of Louisiana's Cajun Coast.

External links

- [http://www.atchafalaya.org The Atchafalaya Trace Heritage Area]
- [http://www.srh.noaa.gov/lmrfc/forecast/tributaries/status_atchafalaya.shtml National Weather Service: Atchafalaya Basin]
- [http://www.mvn.usace.army.mil/atchafalaya/navbook.html U.S. Army Corps of Engineers]
- [http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/Atchafalaya_River.html USGS Infobank: Atchafalya River]
- [http://apt.allenpress.com/aptonline/?request=get-abstract&issn=0749-0208&volume=014&issue=03&page=0882 Delta Switching: Early Responses to Atchafalya Diversion]
- [http://www.peacecorpswriters.org/pages/2003/0303/303rvbayou.html Bayou Farewell: The Rich Life and Tragic Death of Louisiana's Cajun Coast]
- [http://marine.usgs.gov/fact-sheets/LAwetlands/lawetlands.html USGS Fact Sheet: Louisiana Coastal Wetlands: A Resource At Risk]
- [http://www.wildfowlmag.com/conservation/marshes_0718/ Loss of wetlands from the perspective of Wildfowl Magazine]
- [http://www.newyorker.com/archive/content/?050912fr_archive01 John McPhee: The Control of Nature - Atchafalaya (The New Yorker)] Category:Rivers of Louisiana

New Orleans

:For information on the events of Hurricane Katrina, see effect of Hurricane Katrina on New Orleans. New Orleans (local pronunciations: , , or ) (French: La Nouvelle-Orléans, pronounced Image:ltspkr.png in standard French accent) is a major U.S. port city and historically the largest city in the U.S. state of Louisiana. It is located in southeastern Louisiana along the Mississippi River, just south of Lake Pontchartrain, and is coextensive with Orleans Parish.

Overview

The city was devastated by Hurricane Katrina and the subsequent civil engineering failure which resulted in massive flooding in August 2005. As of mid December 2005, efforts continue to aid survivors, clean up debris, and restore infrastructure. While most of the city has reopened to residents and areas which suffered moderate damage have substantially resumed functioning, other parts of town most severely damaged such as some neighborhoods of the 9th Ward are open only during daylight hours for residents to salvage items from their formerly flooded homes. New Orleans is a Southern city known for its multicultural heritage (especially French, Spanish and African American influences) and its music and cuisine. It is a world-famous tourist destination thanks to its many festivals and celebrations; the most notable annual events are Mardi Gras ("Fat Tuesday"), Jazz Fest,Voodoo Fest, Southern Decadence, and college football's Sugar Bowl. The most recent U.S. census put New Orleans's population at 484,674 and the population of Greater New Orleans at 1,337,726. Due to the evacuation of the city before and in the aftermath of Hurricane Katrina, the population as of late 2005 is significantly less; a Time Magazine article with a publication date of 28 November 2005 (written weeks before) estimated the city's population at about 100,000. But now that the city's population is trickling back in to see if they will be able to repair their homes or move someplace else. The population, as of December 12th, is estimated at about 140,000 New Orleans was founded by the French in 1718 and has played an important role in the history of the United States. The city was named in honor of Philip II, Duke of Orléans, who was regent and ruler of France when the city was founded. This is comparable to the naming of New York City in honor of James, Duke of York, heir to the throne of England. It is a major port city due to its location near the Gulf of Mexico and along the Mississippi River, making it a hub for goods which travel to and from Latin America. The petroleum industry is also of great importance to the New Orleans economy; many oil rigs are located in the Gulf. The Port of South Louisiana (which includes the port of N.O.) is based in the New Orleans metropolitan area and is the fourth largest port in the world in terms of raw tonnage, and among the largest U.S. ports for several major commodities, including cement and coffee. The city's several nicknames describe various characteristics of the city, including the "Crescent City" (describing its shape around the Mississippi River), "The Big Easy" (a reference by musicians to the relative ease of finding work in the city), and "The City that Care Forgot" (associated with the easy going, carefree nature of many of the local residents). The city's unofficial motto, "Laissez les bons temps rouler" ("Let the good times roll") describes the party-like attitude of many residents. The city's name is often abbreviated NOLA. Residents of the city are referred to as New Orleanians.

History

Main article: History of New Orleans

Colonial era

History of New Orleans The place was first discovered by Spanish conqueror Alonso Alvarez de Pineda in 1518 along with the Mississippi River, which was named "Espiritu Santo" river. New Orleans was founded in 1718 by the French as La Nouvelle-Orléans, under the direction of Jean-Baptiste Le Moyne de Bienville. The site was selected because it was a rare bit of natural high ground along the flood-prone banks of the lower Mississippi, and was adjacent to a Native American trading route and portage between the Mississippi and Lake Pontchartrain via Bayou St. John (known to natives as Bayou Choupique). A community of French fur trappers and traders had existed along the bayou (in what is now the middle of New Orleans) for at least a decade before the official founding of the city. Nouvelle-Orléans became the capital of French Louisiana in 1722, replacing Biloxi. In 1763, the colony was ceded to the Spanish Empire and remained under Spanish control for 40 years. The Great Fire of 1788 destroyed many of the existing structures in the city (800 houses were destroyed), which were made of wood. As a result of this, and a subsequent fire in 1795 (another 200 houses destroyed), much of 18th century architecture still present in the French Quarter was built under Spanish rule and demonstrates Spanish colonial characteristics, wood was replaced with bricks. The three most impressive buildings of New Orleans come from the Spanish times: St. Louis Cathedral, the Cabildo and the Presbytere. In 1795, Spain granted the United States "Right of Deposit" in New Orleans, allowing Americans to use the city's port facilities. Louisiana reverted to French control in 1801 after Napoleon re-acquired the territory from Spain by treaty. But in 1803, Napoleon sold Louisiana (which then included portions of more than a dozen present-day states) to the United States in the Louisiana Purchase. At this time the city of New Orleans had a population of about 10,000.

19th century

In its early days it was noted for its cosmopolitan polyglot population and mixture of cultures. The city grew rapidly, with influxes of Americans, French and Creole French, many of the latter fleeing from the revolution in Haiti. During the War of 1812 the British sent a force to try to conquer the city, but they were defeated by forces led by Andrew Jackson some miles down river from the city at Chalmette, Louisiana on January 8, 1815 (commonly known as the Battle of New Orleans). Battle of New Orleans The population of the city doubled in the 1830s, and by 1840 the city's population was around 102,000, fourth-largest in the U.S, the largest city away from the Atlantic seaboard, as well as the largest in the South after Baltimore. However, population growth was at times plagued by yellow fever epidemics, such as the great scourge of 1853 that killed nearly 10,000 people in New Orleans. New Orleans was the capital of the state of Louisiana until 1849, then again from 1865 to 1880. As a principal port it had a leading role in the slave trade, while at the same time having North America's largest community of free persons of color. Early in the American Civil War it was captured by the Union (by David Farragut -son of Spanish emigrants- later named the first US Navy Vice-Admiral) without a battle, and hence was spared the destruction suffered by many other cities of the American South. It was the first captured city in the American South. It retains a historical flavor with a wealth of 19th century structures far beyond the early colonial city boundaries of the French Quarter. The city hosted the 1884 World's Fair, called the World Cotton Centennial. An important attraction in the late 19th and early 20th centuries was the famous red light district called Storyville.

20th century

Storyville Storyville Storyville Much of the city is located below sea level between the Mississippi River and Lake Pontchartrain, so the city is surrounded by levees. Until the early 20th century, construction was largely limited to the slightly higher ground along old natural river levees and bayous, since much of the rest of the land was swampy and subject to frequent flooding. This gave the 19th century city the shape of a crescent along a bend of the Mississippi, the origin of the nickname The Crescent City. In the 1910s engineer and inventor A. Baldwin Wood enacted his ambitious plan to drain the city, including large pumps of his own design which are still used. All rain water must be pumped up to the canals which drain into Lake Pontchartrain. Wood's pumps and drainage allowed the city to expand greatly in area. However, pumping of groundwater from underneath the city has resulted in subsidence. The subsidence greatly increased the flood risk, should the levees be breached or precipitation be in excess of pumping capacity (as was the case in 2005 in the aftermath of Hurricane Katrina). There were many warnings in the late 20th century that a major hurricane or a Mississippi flood could create a lake in the central city as much as 9 m (30 ft) deep, which could take months to pump dry.This warning was augmented by vestigial fears from Hurricane Betsy, and the lasting stories of the Army Corps of Engineers blasting the flooding levees, drowning the poorer neighborhoods of the lower ninth Ward. The Holy Cross Neighborhood Association, (HCNA) respresenting a substantial group of the aforementioned lower ninth ward, created a lobby against the Army Corps of Engineers furthering work on the levees which might endanger the neighborhoods. The HCNA sent Jamal Morelli, activist and New Orleans artist, to respresent them in Washington, D.C. Jamal Morelli's struggle for the neighborhood was successful in protecting the lower ninth ward. (2000-2004) In 1905 Yellow Fever was reported in the city, which had suffered under repeated epidemics of the disease in the previous century. As the role of mosquitos in spreading the disease was newly understood, the city embarked on a massive campain to drain, screen, or oil all cisterns and standing water (breeding ground for mosquitos) in the city and educate the public on their vital role in preventing mosquitos. The effort was a success and the disease was stopped before reaching epidemic proportions. President Theodore Roosevelt visited the city to demonstrate the safety of New Orleans. The city has had no cases of Yellow Fever since. New Orleans was hit by major storms in the 1909 Atlantic hurricane season and the 1915 Atlantic hurricane season. In the 1920s an effort to "modernize" the look of the city removed the old cast-iron balconies from Canal Street, the city's commercial hub. In the 1960s another "modernization" effort replaced the Canal Streetcar Line with buses. Both of these moves came to be regarded as mistakes long after the fact, and the streetcars returned to a portion of Canal Street at the end of the 1990s, and construction to restore the entire line was completed in April 2004. The suburbs saw great growth in the second half of the 20th century; the largest suburb today is Metairie, which borders New Orleans to the west. Metairie is not incorporated and is a part of Jefferson Parish. Much of the city flooded in September of 1947 due to the 1947 Fort Lauderdale Hurricane. In 1965 the city was damaged by Hurricane Betsy, with catastrophic flooding of the city's Lower 9th Ward. While long one of the USA's most-visited cities, tourism boomed in the last quarter of the 20th century, becoming a major force in the local economy. Areas of the French Quarter and Central Business District which were long oriented towards local residential and business uses switched to largely catering to the domestic and international tourist industry. A century after the Cotton Centennial Exhibition, New Orleans hosted another World's Fair, the 1984 Louisiana World Exposition. The city experienced severe flooding in the May 8th 1995 Louisiana Flood when heavy rains suddenly dumped over a foot of water on parts of town faster than the pumps could remove the water.

21st Century (Hurricane Katrina)

May 8th 1995 Louisiana Flood :Main article: Effect of Hurricane Katrina on New Orleans The city suffered from the effects of Hurricane Katrina, which made landfall on August 29, 2005 on the gulf coast near the city. Mayor Nagin issued a mandatory evacuation of the entire city, the first such order ever issued in New Orleans. Many residents chose to stay or were stranded in the city by a lack of available transportation. The eye of the storm passed within 10 to 15 miles of New Orleans, bringing strong winds that downed trees, shattered windows, and hurled debris around the area. Heavy rains and flooding immediately affected the eastern areas of the city. The situation worsened on August 30 when levees along three canals which drain into were breached. These canals were the 17th Street Canal, the Industrial Canal, and the London Avenue Canal. As much as 80% of the city, much of which is below sea level, flooded, with water reaching a depth of 25 feet (7.6 meters) in some areas. As of November 2005, The Times Picayune article states that there are in addition to those 1,050 confirmed deaths 5,000 missing residents of the city. Early estimates of the cost of physical damage from the storm have exceeded 100 billion USD. Subsequent investigations showed that the levee failures which flooded the majority of the city were the result of what has been called "the largest civil engineering disaster in the history of the United States" [http://www.nola.com/news/t-p/frontpage/index.ssf?/base/news-4/1133336859287360.xml] The city government declared the city off-limits to residents while clean-up efforts began and warned that those remaining could be removed by force, for their health and safety. On September 15, several of the suburban towns started allowing residents to return. The mayor announced a "phased repopulation" plan to start bringing residents of the city back in the next two weeks. Concern about the fragility of the city's flood defences and transportation caused repopulation efforts to be postponed due to Hurricane Rita. [http://www.cnn.com/2005/US/09/15/katrina.impact/index.html]. New Orleans' Lower Ninth Ward was reflooded when a storm surge from Rita overcame one of the repaired levees on the Industrial Canal [http://www.guardian.co.uk/worldlatest/story/0,1280,-5300327,00.html]. By October 1, parts of the city accounting for about one-third of the population of New Orleans had been reopened, including the French Quarter.[http://www.cnn.com/2005/US/10/01/katrina.recovery.ap/index.html] As of October 1, only 5% of the city remained underwater.

Geography and climate

October 1 New Orleans is located at (29.964722, -90.070556) on the banks of the Mississippi River, approximately 100 miles upriver from the Gulf of Mexico at 30.07°N, 89.93°W. According to the United States Census Bureau, the city has a total area of 907.0 km² (350.2 mi²). 467.6 km² (180.6 mi²) of it is land and 439.4 km² (169.7 mi²) of it is water. The total area is 48.45% water. The city is located in the Mississippi Alluvial Plain, between the Mississippi River in the south and Lake Pontchartrain in the north. The area along the river is characterized by ridges and hollows. Fields atop the ridges along the river are referred to as the "frontlands." The land contour slopes away from the frontlands to the "backlands", comprised of clay and silt. The Mississippi Delta, at the mouth of the Mississippi River, covers about 13,000 square miles (about 1/4 of Louisiana) and consists of silt deposited by the river, and is the most fertile area of Louisiana. The city of New Orleans actually contains the lowest point in the state of Louisiana, and one of the lowest points in the United States, after Death Valley and the Salton Sea. Much of the city is actually located between 1 and 10 feet (0.3 to 3 m) below sea level, and as such, is very prone to flooding. Some 45% of the city is above sea level; these higher areas were developed before 1900; the lowest areas only being developed more recently. Rainwater is continually pumped out of the city and into Lake Pontchartrain across a series of canals lined by levees and dikes. Before the 20th century pumping system, if it rains more than 1 inch, or more recently if there is a major storm surge, such as that caused by a hurricane, greater flooding can occur. Because of the city's high water table most of the cemeteries in the city use above ground crypts as opposed to underground burial. The New Orleans Metropolitan Statistical Area (MSA), the 39th largest in the United States, includes the Louisiana parishes of Orleans (contiguous with the city of New Orleans), Jefferson, Plaquemines, St. Bernard, St. Charles, St. John the Baptist, and St. Tammany.

Cityscape

St. Tammany The Central Business District of New Orleans is located immediately north and west of the Mississippi River, and is historically called the "American Quarter." Most streets in this area fan out from a central point in the city. Major streets of the area include Canal Street and Poydras St. The term "downtown" refers to those parts of town that are downriver from the central business district. "Uptown" refers to those parts of town that are upriver from the central business district. Parts of the city that are located downtown include the world famous French Quarter (most noted as the central tourist district, with its array of shops, bars, and nightclubs along Bourbon Street), Storyville (now defunct), Treme, Faubourg Marigny, Bywater, the 7th Ward, and the Lower 9th Ward. Parts of the city that are located uptown include the Garden District, the Irish Channel, the University District, Carrollton, Gert Town, Fontainebleau, and Broadmoor. Other major districts within the city include Bayou St. John, Mid City, Gentilly, Lakeview, Lakefront, New Orleans East, The upper 9th Ward and Algiers. Parishes located adjacent to the city of New Orleans include St. Tammany Parish to the northeast, St. Bernard Parish to the south, Plaquemines Parish to the southwest, and Jefferson Parish to the west. Jefferson Parish

Climate

The climate of New Orleans is subtropical, with mild winters and hot, humid summers. In January, morning lows average around 43 °F (6°C), and daily highs around 62°F (17°C). In July, lows average 74°F (23°C), and highs average 91°F (33°C). The lowest recorded temperature was 11.0°F (-11.6°C) on December 23, 1989. The highest recorded temperature was 102.0°F (38.9°C) on August 22, 1980. The average precipitation is 59.74 inches (1520 mm) annually. On rare occasions, snow will fall. Most recently, a trace of snow fell on Christmas in 2004, during the 2004 Christmas Eve Snowstorm. On December 25, a combination of rain, sleet, and snow fell on the city, leaving some bridges icy. Before that, the last white Christmas was in 1954, and brought 4.5 inches (110 mm). The last significant snowfall in New Orleans fell on December 22, 1989, when most of the city received 1 or 2 inches of snow.

People and culture

Demographics

:Note: Though many of those evacuated from New Orleans from circumstances relating to Hurricane Katrina have yet to return, the evacuees remain residents of the city. While medium-to-long term changes in population may be drastic, there is no way, short of speculation, to account for these effects. The U. S. Census figures presented here are the most recent; and verifiable. As of the census of 2000, there were 484,674 people, 188,251 households, and 112,950 families residing in the city. The population density was 1,036.4/km² (2,684.3/mi²). There were 215,091 housing units at an average density of 459.9/km² (1,191.3/mi²). The racial makeup of the city was 67.25% African American, 28.05% White, 0.20% Native American, 2.26% Asian, 0.02% Pacific Islander, 0.93% from other races, and 1.28% from two or more races. 3.06% of the population were Hispanic or Latino of any race. The population of Greater New Orleans stood at 1,337,726 in 2000, placing it 35 amongst United States metropolitan areas. These population statistics are based on legal residents of the city. But due to the enourmous annual tourist flow, the amount of people inside the city at a given time, such as Mardi Gras season, tends to exceed these numbers sometimes by the hundreds of thousands. There were 188,251 households out of which 29.2% had children under the age of 18 living with them, 30.8% were married couples living together, 24.5% had a female householder with no husband present, and 40.0% were non-families. 33.2% of all households were made up of individuals and 9.7% have someone living alone who is 65 years of age or older. The average household size was 2.48 and the average family size was 3.23. In the city the population was spread out with 26.7% under the age of 18, 11.4% from 18 to 24, 29.3% from 25 to 44, 20.9% from 45 to 64, and 11.7% who were 65 years of age or older. The median age was 33 years. For every 100 females there were 88.2 males. For every 100 females age 18 and over, there were 83.3 males. The median income for a household in the city was $27,133, and the median income for a family was $32,338. Males had a median income of $30,862 versus $23,768 for females. The per capita income for the city was $17,258. 27.9% of the population and 23.7% of families were below the poverty line. Out of the total population, 40.3% of those under the age of 18 and 19.3% of those 65 and older were living below the poverty line. New Orleans is well known for its Creole culture and the persistence of Voodoo practice by a few of its residents, as well as for its music, food, architecture, and spirit of celebration.

Pronunciation

New Orleans is usually pronounced by locals as "Noo Or-lins," or "Noo Aw-lins." The pronunciation "N'Awlins" is not generally used by locals but has been popularized by the tourist trade. The distinctive local accent, sometimes identified as Yat, is unlike either Cajun or the stereotypical Southern accent so often misportrayed by film and television actors. It does, like earlier Southern Englishes, feature frequent deletion of post-vocalic "r". It is similar to a New York "Brooklynese" accent to people unfamiliar with it. There are many theories to how the accent came to be, but it likely results from New Orleans' geographic isolation by water, and the fact that New Orleans was a major port of entry into the United States throughout the 19th century. Many of the immigrant groups who reside in Brooklyn also reside in New Orleans, with Irish, Italians, and Germans being among the largest groups. The prestige associated with being from New Orleans by many residents is likely a factor in the linguistic assimilation of the ethnically divergent population. This distinctive accent is dying out generation by generation in the city (but remains very strong in the surrounding Parishes). As with many sociolinguistic artifacts, it is usually attested much more strongly by older members of the population. Also notable are lexical items specific to the city, such as "lagniappe" (pronounced LAN-yap) meaning "a little something extra," "makin' groceries" for grocery shopping, or "neutral ground" for a street median.

Media

The major daily newspaper is the New Orleans Times-Picayune, publishing since 1837. Other alternative weekly publications include the [http://www.louisianaweekly.com/ Louisiana Weekly] and the [http://www.bestofneworleans.com/ Gambit Weekly]. Greater New Orleans is well served by television and radio. The market is the 43rd largest Designated Market Area (DMA) in the U.S., serving 672,150 homes and 0.610% of the U.S. Major television network affiliates serving the area include WWL 4 (CBS), WGNO 26 (ABC), WDSU 6 (NBC), WVUE 8 (FOX), WNOL 38 (WB), WUPL 54 (UPN), and WPXL 49 (PAX). PBS stations include WYES 12 and WLAE 32. WHNO 20 also operates as an independent station in the area.

Museums and other attractions

WHNO Greater New Orleans has many major attractions, from the world-renowned Bourbon Street and the French Quarter's notorious nightlife, St. Charles Avenue (home of Tulane and Loyola Universities), and many stately 19th century mansions. Favorite tourist scenes in New Orleans include the French Quarter (known locally as "the Quarter"), which dates from the French and Spanish eras and is bounded by the Mississippi River and Rampart Street, Canal Street and Esplanade Ave. The French Quarter contains many popular hotels, bars, and nightclubs, most notably around Bourbon Street. Other notable tourist attractions in the quarter include Jackson Square, St. Louis Cathedral, the French Market (including the Café du Monde, famous for café au lait and beignets), and Preservation Hall. Also located near the French Quarter is the old New Orleans Mint, formerly a branch of the United States Mint, now operates as a museum. The National D-Day Museum is a relatively new museum (opened on June 6, 2000) dedicated to providing information and materials related to the allied invasion of Normandy, France. The Natchez is an authentic steamboat with a calliope tours the Mississippi twice daily. Art museums in the city include the New Orleans Museum of Art (NOMA) and the Ogden Museum of Southern Art. The Audubon Park and the Audubon Zoo are also located in the city of New Orleans. New Orleans is also noted for its many beautiful cemeteries. Some notable cemeteries in the city include Saint Louis Cemetery and Metairie Cemetery. The city is also world-famous for its food. Specialties include beignets, square-shaped fried pastries that are sometimes called French doughnuts (served with coffee and chicory "au lait"); Po'boy and Italian Muffaletta sandwiches; Gulf oysters on the half-shell and other seafoods; etouffee, jambalaya, gumbo, and other Creole dishes; and the Monday evening favorite of red beans and rice. (Louis Armstrong often signed his letters, "red beans and ricely yours.") Significant gardens include Longue Vue House and Gardens and the New Orleans Botanical Garden.

Annual cultural events and fairs

See also: New Orleans Mardi Gras New Orleans Mardi Gras Greater New Orleans is home to numerous year-around celebrations, including Mardi Gras, New Year's Eve celebrations, and the New Orleans Jazz & Heritage Festival. New Orleans' most famous celebration is its Carnival Season. The Carnival season is often known (especially by out-of-towners) by the name of the last and biggest day, Mardi Gras (literally, "Fat Tuesday"), held just before the beginning of the Catholic liturgical season of Lent. Mardi Gras celebrations include parades and floats; participants toss strings of cheap colorful beads and doubloons to the crowds. The Mardi Gras season is kicked off with the only parade allowed through the French Quarter (Vieux Carré, translated Old Square), a walking parade aptly named Krewe du Vieux. The largest of the city's many musical festivals is the New Orleans Jazz & Heritage Festival. Commonly referred to simply as, "Jazz Fest", it is one of the largest music festivals in the nation, and features crowds coming from all over the world to experience music, food, arts, and crafts. Despite the name, it features not only jazz but a large variety of music, including both native Louisiana music and nationally-known popular music artists.

Music

New Orleans Jazz & Heritage Festival.]] New Orleans has always been a significant center for music with its intertwined European, Latin American, and African-American cultures. The city engendered jazz with its brass bands. Decades later it was home to a distinctive brand of rhythm and blues that contributed greatly to the growth of rock and roll. Its general atmosphere of Dionysian art has also resulted in chaotic artists such as Crash Worship, Liquiddrone, and Jamal Morelli. In addition, the nearby countryside is the home of Cajun music, Zydeco music, and Delta blues. The city also created its own spin on the old tradition of military brass band funerals; traditional New Orleans funerals with music feature sad music (mostly dirges and hymns) on the way to the cemetery and happy music (hot jazz) on the way back. Such traditional musical funerals still take place when a local musician, a member of a club, krewe, or benevolent society, or a noted dignitary has passed. Until the 1990s most locals preferred to call these "funerals with music," but out of town visitors have long dubbed them "jazz funerals." Younger bands, especially those based in the Treme neighborhood, have embraced the term and now have funerals featuring only jazz music.

Sports

Treme The city is the home to several professional, major league sports teams, including the New Orleans Saints of the National Football League and the New Orleans Hornets of the National Basketball Association (moved from Charlotte, North Carolina at the start of the 2002–2003 season). The Saints play in the Louisiana Superdome, and the Hornets play in the adjacent New Orleans Arena. Due to the effects of Hurricane Katrina on New Orleans, including damage both to the exterior and the interior of the Louisiana Superdome, the New Orleans Saints will have to play their "home" games in Baton Rouge and San Antonio, Texas. The football season began just a week after the storm hit, and the Saints played their first "home" game against the Giants at Giants Stadium. After that, they traveled to San Antonio to play in the Alamodome for their "home" game against Buffalo. Next the Saints will remain in San Antonio to play their opponent Atlanta. For the October 30 game the Saints will travel to Baton Rouge, where they will play in LSU's Tiger Stadium. The Saints will play the next three "home" games in Baton Rouge. The final game of the Saints' season will be played in San Antonio. All in all the Saints will play a total of three "home" games in San Antonio, and four "home" games in Baton Rouge. The Hornets will play 35 "home" games at the Ford Center in Oklahoma City,Oklahoma, with the remaining 6 to be played in Baton Rouge or, if possible, in New Orleans. The city also has an Arena Football League team, the New Orleans VooDoo, owned by the Saints' owner, Tom Benson. The New Orleans Zephyrs, AAA minor league baseball team plays in adjacent Metairie. They are currently affiliated with the Washington Nationals. The city also hosts two college football bowl games annually: the New Orleans Bowl and the Sugar Bowl. Historically, many teams have been formerly located in the city, including the New Orleans Pelicans baseball team (1887–1959), the New Orleans Breakers of the United States Football League, the New Orleans Night of the Arena Football League (1991–1992), and the New Orleans Brass ice hockey team (1997–2003). Former basketball teams were the New Orleans Buccaneers (c. 1967–1970), and the New Orleans Jazz (1974–1980) which became the Utah Jazz.

Economy

Utah Jazz New Orleans is an industrial and distribution center, and a major U.S. seaport. It is one of the busiest seaports in not only the United States, but also the world. The U.S. Army Corps of Engineers built the Mississippi River-Gulf Outlet Canal in the mid 20th century to accommodate New Orleans' barge traffic. Like Houston, New Orleans is located in proximity to the Gulf of Mexico and the many oil rigs lying just offshore. There are a substantial number of energy companies that have their regional headquarters in the city, including BP, Chevron, ConocoPhillips, and Shell Oil Company. The city is also home to one Fortune 500 company, Entergy Corporation, an electric power provider. The federal government has a significant presence in the area. The NASA Michoud Assembly Facility is located in the eastern portion of Orleans Parish. Lockheed-Martin also has a large manufacturing facility located in the Greater New Orleans area that produces external fuel tanks for space shuttles. Other companies with a significant presence or base in New Orleans include BellSouth, Hibernia Corp., IBM, Navtech, Harrah's (downtown casino), Popeye's Fried Chicken, and Zatarain's. The Port of New Orleans handles about 145 million short tons (132 million tonnes) of cargo a year and is the largest faction of the Port of South Louisiana, the latter being the largest and busiest shipping port in the western hemisphere and the 4th busiest in the world. About 5,000 ships from nearly 60 nations dock at the Port of New Orleans annually. The chief exports are grain and other foods from the Midwestern United States and petroleum products. The leading imports include chemicals, cocoa beans, coffee, and petroleum. The port handles more trade with Latin America than does any other U.S. gateway, including Miami. New Orleans is also a busy port for barges. The barges use the nation's two main inland waterways, the Mississippi River and the Gulf Intracoastal Waterway, which meet at New Orleans. The port of New Orleans handles about 50,000 barges yearly. There are also two ferries that cross the river near the Garden district and the French Quarter. These ferries are free of charge to pedestrians, but motorists pay a $1 fee to cross on them. New Orleans is also one of the most visited cities in the United States, and tourism is a major staple in the area's economy. The city's colorful Carnival celebrations during the pre-Lenten season, centered on the French Quarter, draw particularly large crowds. Other major tourist events and attractions in the city include Mardi Gras, the Sugar Bowl, the New Orleans Jazz & Heritage Festival, and Southern Decadence (one of the largest annual Gay/Lesbian celebrations in the nation).

Infrastructure

Government

New Orleans has a mayor-council government. The city council consists of five councilmembers that are elected by district and two at large councilmembers. Mayor C. Ray Nagin, Jr. was elected in May 2002. The New Orleans Police Department provides professional police services to the public in order to maintain order and protect life and property. The Orleans Parish civil sheriff's employees serve (deliver) papers involving lawsuits. The Criminal Sheriff's department maintains the parish prison system. The city of New Orleans and the parish of Orleans operate as a merged city-county government. Before the city of New Orleans became co-extensive with Orleans Parish, Orleans Parish was home to numerous smaller communities. Some of these communities within Orleans Parish have historically had separate identities from the city of New Orleans, such as Irish Bayou and Carrollton. Algiers, Louisiana was a separate city through 1870. As soon as Algiers became a part of New Orleans, Orleans Parish ceased being separate from the city of New Orleans.

Schools

New Orleans Public Schools, the city's school district, is one of the area's largest school districts. NOPS contains approximately 100 individual schools. The Greater New Orleans area has approximately 200 parochial schools. Several institutions of higher education also exist within the city, including University of New Orleans, Tulane University, Loyola University New Orleans, Dillard University, Southern University at New Orleans, Xavier University of Louisiana, Louisiana State University Medical School, and Our Lady of Holy Cross College. Other schools include Delgado Community College, Nunez Community College, Culinary Institute of New Orleans, Herzing College, Commonwealth University, and New Orleans Baptist Theological Seminary.

Transportation

The metropolitan area is served by Louis Armstrong New Orleans International Airport , located approximately nine miles west of the city in the city of Kenner. It serves millions of passengers on approximately 300 nonstop flights per day to or from destinations throughout the United States, Canada, Latin America, and the Caribbean. The airport also handles a significant amount of charter operations from Europe. The airport also serves as a nonstop gateway to Mexico for Federal Express. Within the city itself is Lakefront Airport, a small, general aviation airport, as well as the New Orleans Downtown Heliport, located on the roof of the Louisiana Superdome's parking garage. There are also several regional airports located throughout the metropolitan area. The city is also served by rail via Amtrak. The New Orleans Union Passenger Terminal is the central rail depot, and it is served by three trains: the Crescent to New York City, the City of New Orleans to Chicago, Illinois, and the Sunset Limited from Orlando to Los Angeles. In addition, the city is served by six Class I freight railroads. The Union Pacific and Burlington Northern Santa Fe railroads approach the city from the west, the Norfolk Southern and CSX from the east, and the Canadian National and Kansas City Southern from the north. Public transportation in the city is operated by New Orleans Regional Transit Authority ("RTA"). In addition to the many bus routes connecting the city and suburban areas, there are three active streetcar lines moved by electric motors powered by DC wires overhead. The St. Charles line (green cars, formerly connecting New Orleans with the then independent suburb of Carrollton) is the oldest continuously operating streetcar line in New Orleans and a historic landmark. The Riverfront line (also known as the Ladies in Red since the cars are painted red) runs parallel to the river from Canal Street through the French Quarter to the Convention Center above Julia Street in the Arts District. The Canal Street line uses the Riverfront line tracks from Esplanade Street to Canal Street, then branches off down Canal Street and ends at the cemeteries at City Park Avenue with a spur running from the intersection of Canal and Carrollton Avenue to the entrance of City Park at Esplanade near the entrance to the New Orleans Museum of Art. The city's streetcars were also featured in the Tennessee Williams play, A Streetcar Named Desire. The streetcar line to Desire Street became a bus line in 1948, but may be restored as a light rail streetcar line. The roads in the city are arranged in a radial grid pattern, emanating out to various parts of town from a central point in the Central Business District. I-10 travels east-west through the city, and goes very close to the Central Business District, taking traffic west towards Baton Rouge, Louisiana and east-northeast to Slidell, Louisiana. The "Highrise" carry I-10 across the Industrial Canal. Further east, the Interstate connects New Orleans East with Slidell across an arm of Lake Pontchartrain, known as the "Twin Spans"; these causeways were severely damaged by Hurricane Katrina; by October single lanes in each direction had been reopened on the eastbound span. The westbound span is scheduled to be repaired by January 2006. The bridges are to be replaced with a new six-lane bridge in 2006. As I-10 heads south from Metairie towards the Central Business District, it is called the Pontchartrain Expressway. I-610 connects I-10 and travels through the northern central part of the city. US 90 leaves the Central Business District and goes west through the city's Uptown neighborhood and crosses the Missisisppi River at the Huey P. Long Bridge near the suburb of Jefferson. I-10 is also connected to I-12, north of Lake Pontchartrain, via the Lake Pontchartrain Causeway, consisting of two parallel bridges, which are also the longest in the world. The interstate highways serving New Orleans were laid out in the middle of the 20th century, a time when a larger proportion of Gulf of Mexico freight traffic passed through New Orleans. I-10 goes west to Houston and beyond and east to Mobile and Florida, with I-59 and I-55 heading northward to Birmingham and Jackson, respectively. Later, I-12 created a shortcut that avoided

Old River Control Structure

The Old River Control Structure was built by the U.S. Army Corps of Engineers at the divergence of the Mississippi and Atchafalaya Rivers in order to maintain the water distribution between the two at 70% and 30% respectively. This was done in response to the increasing amounts of water from the Mississippi that was flowing into the Atchafalaya due to its steeper course to the Gulf of Mexico. The floodgate system was completed in 1963. The details of the Old River Control system are explored in the "Atchafalaya" section of the book "The Control of Nature" by John McPhee

Distributary

River

Topography

Biology

Pollution

Navigation

Dams

Flooding

Logjams

Management

River lists

The world's ten longest rivers

Well-known rivers (in alphabetic order)

Other lists

Rivers in myth and fiction

Real rivers

Mythological rivers

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See also

Crossings

Transport

External links

Sea

List of seas, divided by ocean

Pacific Ocean

Atlantic Ocean

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Landlocked seas

Extraterrestrial seas

Science

See also

River delta

Delta formation

List of deltas

External link

Atchafalaya River

Degradation of the buffer marshes

See also

External links

New Orleans

Overview

History

Colonial era

19th century

20th century

21st Century (Hurricane Katrina)

Geography and climate

Cityscape

Climate

People and culture

Demographics

Pronunciation

Media

Museums and other attractions

Annual cultural events and fairs

Music

Sports

Economy

Infrastructure

Government

Schools

Transportation

Old River Control Structure