Causeway At The Cooum Delta, Chennai
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A causeway is a track, road or railway on the upper point of an embankment across "a low, or wet place, or piece of water". It can be constructed of earth,
masonry Masonry is the craft of building a structure with brick, stone, or similar material, including mortar plastering which are often laid in, bound, and pasted together by mortar (masonry), mortar. The term ''masonry'' can also refer to the buildin ...
, wood, or concrete. One of the earliest known wooden causeways is the
Sweet Track The Sweet Track is an ancient trackway, or causeway, in the Somerset Levels, England, named after its finder, Ray Sweet. It was built in 3807 BC (determined using dendrochronology – tree-ring dating) and is the second-oldest timber track ...
in the
Somerset Levels The Somerset Levels are a coastal plain and wetland area of Somerset, England, running south from the Mendips to the Blackdown Hills. The Somerset Levels have an area of about and are bisected by the Polden Hills; the areas to the south ...
, England, which dates from the
Neolithic The Neolithic or New Stone Age (from Ancient Greek, Greek 'new' and 'stone') is an archaeological period, the final division of the Stone Age in Mesopotamia, Asia, Europe and Africa (c. 10,000 BCE to c. 2,000 BCE). It saw the Neolithic Revo ...
age. Timber causeways may also be described as both
boardwalk A boardwalk (alternatively board walk, boarded path, or promenade) is an elevated footpath, walkway, or causeway typically built with wooden planks, which functions as a type of low water bridge or small viaduct that enables pedestrians to ...
s and
bridge A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, whi ...
s.


Etymology

When first used, the word ''causeway'' appeared in a form such as "causey way", making clear its derivation from the earlier form "causey". This word seems to have come from the same source by two different routes. It derives ultimately, from the Latin for heel, , and most likely comes from the trampling technique to consolidate earthworks. Originally, the construction of a causeway used earth that had been trodden upon to compact and harden it as much as possible, one layer at a time, often by slaves or flocks of
sheep Sheep (: sheep) or domestic sheep (''Ovis aries'') are a domesticated, ruminant mammal typically kept as livestock. Although the term ''sheep'' can apply to other species in the genus '' Ovis'', in everyday usage it almost always refers to d ...
. Today, this work is done by machines. The same technique would have been used for road embankments, raised river banks, sea banks and
fortification A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from Lati ...
earthworks. The second derivation route is simply the hard, trodden surface of a path. The name by this route came to be applied to any firmly surfaced road. It is now little-used except in dialect and in the names of roads which were originally notable for their solidly made surface. The 1911 Encyclopædia Britannica states: "causey, a mound or dam, which is derived, through the Norman-French (cf. modern ), from the late Latin , a road stamped firm with the feet (, to tread)." The word is comparable in both meanings with the
French French may refer to: * Something of, from, or related to France ** French language, which originated in France ** French people, a nation and ethnic group ** French cuisine, cooking traditions and practices Arts and media * The French (band), ...
', from a form of which it reached
English English usually refers to: * English language * English people English may also refer to: Culture, language and peoples * ''English'', an adjective for something of, from, or related to England * ''English'', an Amish ter ...
by way of
Norman French Norman or Norman French (, , Guernésiais: , Jèrriais: ) is a '' langue d'oïl'' spoken in the historical and cultural region of Normandy. The name "Norman French" is sometimes also used to describe the administrative languages of '' Angl ...
. The French adjective carries the meaning of having been given a hardened surface and is used to mean either paved or shod. As a noun is used on the one hand for a metalled carriageway, and on the other for an embankment with or without a road. Other languages have a noun with similar dual meaning. In
Welsh Welsh may refer to: Related to Wales * Welsh, of or about Wales * Welsh language, spoken in Wales * Welsh people, an ethnic group native to Wales Places * Welsh, Arkansas, U.S. * Welsh, Louisiana, U.S. * Welsh, Ohio, U.S. * Welsh Basin, during t ...
, it is . The Welsh is relevant here, as it also has a verb , meaning to trample. The trampling and ramming technique for consolidating earthworks was used in fortifications and there is a comparable, outmoded form of wall construction technique, used in such work and known as pisé, a word derived not from trampling but from ramming or tamping. The Welsh word translates directly to the English word 'causeway'; it is possible that, with Welsh being a lineal linguistic descendant of the original native British tongues, the English word derives from the Welsh. A transport corridor that is carried instead on a series of arches, perhaps approaching a bridge, is a
viaduct A viaduct is a specific type of bridge that consists of a series of arches, piers or columns supporting a long elevated railway or road. Typically a viaduct connects two points of roughly equal elevation, allowing direct overpass across a wide ...
; a short stretch of viaduct is called an
overpass An overpass, called an overbridge or flyover (for a road only) in the United Kingdom and some other Commonwealth countries, is a bridge, road, railway or similar structure that is over another road or railway. An ''overpass'' and '' underpa ...
. The distinction between the terms ''causeway'' and ''viaduct'' becomes blurred when flood-relief
culvert A culvert is a structure that channels water past an obstacle or to a subterranean waterway. Typically embedded so as to be surrounded by soil, a culvert may be made from a pipe (fluid conveyance), pipe, reinforced concrete or other materia ...
s are incorporated, though generally a causeway refers to a roadway supported mostly by earth or stone, while a bridge supports a roadway between piers (which may be embedded in embankments). Some low causeways across shore waters become inaccessible when covered at high
tide Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables ...
.


History

The Aztec city-state of
Tenochtitlan , also known as Mexico-Tenochtitlan, was a large Mexican in what is now the historic center of Mexico City. The exact date of the founding of the city is unclear, but the date 13 March 1325 was chosen in 1925 to celebrate the 600th annivers ...
had causeways supporting roads and aqueducts. One of the oldest engineered roads yet discovered is the
Sweet Track The Sweet Track is an ancient trackway, or causeway, in the Somerset Levels, England, named after its finder, Ray Sweet. It was built in 3807 BC (determined using dendrochronology – tree-ring dating) and is the second-oldest timber track ...
in
England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
. Built in 3807 or 3806 BC, the track was a walkway consisting mainly of planks of
oak An oak is a hardwood tree or shrub in the genus ''Quercus'' of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisp ...
laid end-to-end, supported by crossed pegs of ash, oak, and
lime Lime most commonly refers to: * Lime (fruit), a green citrus fruit * Lime (material), inorganic materials containing calcium, usually calcium oxide or calcium hydroxide * Lime (color), a color between yellow and green Lime may also refer to: Bo ...
, driven into the underlying peat. In
East Africa East Africa, also known as Eastern Africa or the East of Africa, is a region at the eastern edge of the Africa, African continent, distinguished by its unique geographical, historical, and cultural landscape. Defined in varying scopes, the regi ...
, the Husuni Kubwa (the "Great Fort"), situated outside the town of
Kilwa Kilwa Kisiwani ('Kilwa Island') is an island, national historic site, and Hamlet (place), hamlet community located in the township of Kilwa Masoko, the district seat of Kilwa District in the Tanzanian region of Lindi Region, Lindi in southern Ta ...
, was an early 14th-century sultan's palace and emporium that contained causeways and platforms at the entrance of the Harbour made from blocks of reef and coral nearly a meter high. These acted as
breakwaters A breakwater is a permanent structure constructed at a coastal area to protect against tides, currents, waves, and storm surges. Breakwaters have been built since antiquity to protect anchorages, helping isolate vessels from marine hazards ...
, allowing mangroves to grow which is one of the ways the breakwater can be spotted from a distance. Some parts of the causeway are made from the bedrock, but usually the bedrock was used as a base. Coral stone was also used to build up the causeways, with sand and lime being used to cement the cobbles together. However, some of the stones were left loose. In
Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...
, the skirmish known as Clense the Calsey, or Cleanse the Causeway, took place in the High Street of Edinburgh in 1520. In the 18th century,
Dahomey The Kingdom of Dahomey () was a West African List of kingdoms in Africa throughout history, kingdom located within present-day Benin that existed from approximately 1600 until 1904. It developed on the Abomey Plateau amongst the Fon people in ...
lacked an effective navy hence it built causeways for naval purposes starting in 1774.


Engineering

The modern embankment may be constructed within a ''
cofferdam A cofferdam is an enclosure built within a body of water to allow the enclosed area to be pumped out or drained. This pumping creates a dry working environment so that the work can be carried out safely. Cofferdams are commonly used for constru ...
'': two
parallel Parallel may refer to: Mathematics * Parallel (geometry), two lines in the Euclidean plane which never intersect * Parallel (operator), mathematical operation named after the composition of electrical resistance in parallel circuits Science a ...
steel sheet pile or
concrete Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactur ...
retaining wall Retaining walls are relatively rigid walls used for supporting soil laterally so that it can be retained at different levels on the two sides. Retaining walls are structures designed to restrain soil to a slope that it would not naturally keep to ...
s,
anchor An anchor is a device, normally made of metal, used to secure a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current. The word derives from Latin ', which itself comes from the Greek (). Anch ...
ed to each other with steel cables or rods. This construction may also serve as a dyke that keeps two bodies of water apart, such as bodies with a different water level on each side, or with
salt water Saline water (more commonly known as salt water) is water that contains a high concentration of dissolved salts (mainly sodium chloride). On the United States Geological Survey (USGS) salinity scale, saline water is saltier than brackish wate ...
on one side and
fresh water Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salt (chemistry), salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include ...
on the other. This may also be the primary purpose of a structure, the road providing a hardened crest for the dike, slowing erosion in the event of an overflow. It also provides access for maintenance as well perhaps, as a public service.


Examples

Notable causeways include those that connect
Singapore Singapore, officially the Republic of Singapore, is an island country and city-state in Southeast Asia. The country's territory comprises one main island, 63 satellite islands and islets, and one outlying islet. It is about one degree ...
and
Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...
(the Johor-Singapore Causeway),
Bahrain Bahrain, officially the Kingdom of Bahrain, is an island country in West Asia. Situated on the Persian Gulf, it comprises a small archipelago of 50 natural islands and an additional 33 artificial islands, centered on Bahrain Island, which mak ...
and
Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in West Asia. Located in the centre of the Middle East, it covers the bulk of the Arabian Peninsula and has a land area of about , making it the List of Asian countries ...
(25-km long
King Fahd Causeway The King Fahd Causeway () is a 25 km (15.5 mi) long series of bridges and causeways connecting Khobar, Saudi Arabia, and Al Jasra, Bahrain. Its five bridges rest on 536 concrete pylons, with seven embankments in the Gulf's shallowe ...
) and
Venice Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are li ...
to the mainland, all of which carry roadways and railways. In the
Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
there are a number of prominent dikes which also double as causeways, including the
Afsluitdijk The Afsluitdijk (; ; "closure dyke") is a major dam and causeway in the Netherlands. It was constructed between 1927 and 1932 and runs from Den Oever in North Holland province to the village of Zurich, Friesland, Zurich in Friesland province, o ...
, Brouwersdam, and
Markerwaarddijk The Houtribdijk is a dam in the Netherlands, built between 1963 and 1976 as part of the Zuiderzee Works, which connects the cities of Lelystad and Enkhuizen. On the west side of the dike is the Markermeer and on the east is the IJsselmeer. The ...
. In the Republic of
Panama Panama, officially the Republic of Panama, is a country in Latin America at the southern end of Central America, bordering South America. It is bordered by Costa Rica to the west, Colombia to the southeast, the Caribbean Sea to the north, and ...
a causeway connects the islands of Perico, Flamenco, and Naos to
Panama City Panama City, also known as Panama, is the capital and largest city of Panama. It has a total population of 1,086,990, with over 2,100,000 in its metropolitan area. The city is located at the Pacific Ocean, Pacific entrance of the Panama Canal, i ...
on the mainland. It also serves as a breakwater for ships entering the
Panama Canal The Panama Canal () is an artificial waterway in Panama that connects the Caribbean Sea with the Pacific Ocean. It cuts across the narrowest point of the Isthmus of Panama, and is a Channel (geography), conduit for maritime trade between th ...
. Causeways are also common in
Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...
, where low bridges may connect several human-made
island An island or isle is a piece of land, distinct from a continent, completely surrounded by water. There are continental islands, which were formed by being split from a continent by plate tectonics, and oceanic islands, which have never been ...
s, often with a much higher bridge (or part of a single bridge) in the middle so that taller
boat A boat is a watercraft of a large range of types and sizes, but generally smaller than a ship, which is distinguished by its larger size or capacity, its shape, or its ability to carry boats. Small boats are typically used on inland waterways s ...
s may pass underneath safely. Causeways are most often used to connect the
barrier island Barrier islands are a Coast#Landforms, coastal landform, a type of dune, dune system and sand island, where an area of sand has been formed by wave and tidal action parallel to the mainland coast. They usually occur in chains, consisting of an ...
s with the
mainland Mainland is defined as "relating to or forming the main part of a country or continent, not including the islands around it egardless of status under territorial jurisdiction by an entity" The term is often politically, economically and/or demogr ...
. In the case of the
Courtney Campbell Causeway The Courtney Campbell Causeway is the northernmost bridge across Old Tampa Bay, carrying State Road 60 between Clearwater, Florida in Pinellas County and Tampa, Florida in Hillsborough County. History The Causeway was commissioned by th ...
, however, the mainland ( Hillsborough County) is connected by a causeway to a peninsula (
Pinellas County Pinellas County (, ) is located on the west central coast of the U.S. state of Florida. As of the 2020 United States census, 2020 census, the population was 959,107, making it the seventh-most populous county in the state. It is also the most d ...
). A well-known causeway is the
NASA Causeway The NASA Causeway, is an east–west expressway in Brevard County, Florida, containing two causeways. The first causeway connects the Florida mainland to Merritt Island and later, over the private second causeway, connects Merritt Island to C ...
connecting the town of Titusville on the Florida mainland to the rocket-launching facility at the
Kennedy Space Center The John F. Kennedy Space Center (KSC, originally known as the NASA Launch Operations Center), located on Merritt Island, Florida, is one of the NASA, National Aeronautics and Space Administration's (NASA) ten NASA facilities#List of field c ...
on
Merritt Island Merritt Island is a peninsula, commonly referred to as an island, in Brevard County, Florida, United States, located on the eastern Florida coast, along the Atlantic Ocean. It is also the name of an unincorporated town in the central and sout ...
. The
Churchill Barriers The Churchill Barriers are four causeways in the Orkney islands with a total length of . They link the Orkney Mainland in the north to the island of South Ronaldsay via Burray and the two smaller islands of Lamb Holm and Glimps Holm. The b ...
in
Orkney Orkney (), also known as the Orkney Islands, is an archipelago off the north coast of mainland Scotland. The plural name the Orkneys is also sometimes used, but locals now consider it outdated. Part of the Northern Isles along with Shetland, ...
are some of the most notable sets of causeways in Europe. Constructed in waters up to 18 metres deep, the four barriers link five islands on the eastern side of the natural harbour at
Scapa Flow Scapa Flow (; ) is a body of water in the Orkney Islands, Scotland, sheltered by the islands of Mainland, Graemsay, Burray,S. C. George, ''Jutland to Junkyard'', 1973. South Ronaldsay and Hoy. Its sheltered waters have played an impor ...
. They were built during
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
as military defences for the harbour, on the orders of
Winston Churchill Sir Winston Leonard Spencer Churchill (30 November 1874 – 24 January 1965) was a British statesman, military officer, and writer who was Prime Minister of the United Kingdom from 1940 to 1945 (Winston Churchill in the Second World War, ...
. The Estrada do Istmo connecting the islands of
Taipa Taipa ( zh, t=氹仔, ; , ) is an area in Macau, connected to Coloane through the area known as Cotai, which is largely built from reclaimed land. Located on the northern half of the island, Taipa's population is mostly suburban. Administrativ ...
and
Coloane Coloane ( Chinese: 路環, Portuguese: ''Coloane'') is the southernmost area in Macau, connected to Taipa through the area known as Cotai, which is largely built from reclaimed land. Known as “''Lou Wan''” in Cantonese, Coloane forms the sou ...
in
Macau Macau or Macao is a special administrative regions of China, special administrative region of the People's Republic of China (PRC). With a population of about people and a land area of , it is the most List of countries and dependencies by p ...
was initially built as a causeway. The sea on both sides of the causeway then became shallower as a result of silting, and mangroves began to conquer the area. Later, land reclamation took place on both sides of the road and the area has subsequently been named
Cotai Cotai ( zh, t=路氹城, cy=Louhtáhm Sìhng; ) is a piece of land reclamation, reclaimed land on the top of the Seac Pai Bay between Taipa and Coloane islands in Macau that has connected two independent islands since 2005. The name, which is ...
and become home to several casino complexes.


Examples of causeways around the world

*
Adam's Bridge Adam's Bridge, also known as Rama's Bridge or ''Rama Setu'', is a chain of natural limestone shoals between Pamban Island, also known as Rameswaram Island, off the southeastern coast of Tamil Nadu, India, and Mannar Island, off the northwe ...
, historic causeway which existed until 1480 CE *
Afsluitdijk The Afsluitdijk (; ; "closure dyke") is a major dam and causeway in the Netherlands. It was constructed between 1927 and 1932 and runs from Den Oever in North Holland province to the village of Zurich, Friesland, Zurich in Friesland province, o ...
,
Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
. *
Canso Causeway The Canso Causeway () is a rock-fill causeway crossing the Strait of Canso, provides access by road to the Atlantic Ocean, to the Gulf of St. Lawrence or Cape Breton Island to the Nova Scotia peninsula. Its crest thickness is , carrying t ...
,
Nova Scotia Nova Scotia is a Provinces and territories of Canada, province of Canada, located on its east coast. It is one of the three Maritime Canada, Maritime provinces and Population of Canada by province and territory, most populous province in Atlan ...
, Canada () *
Churchill Barriers The Churchill Barriers are four causeways in the Orkney islands with a total length of . They link the Orkney Mainland in the north to the island of South Ronaldsay via Burray and the two smaller islands of Lamb Holm and Glimps Holm. The b ...
, 4 causeways in
Orkney Orkney (), also known as the Orkney Islands, is an archipelago off the north coast of mainland Scotland. The plural name the Orkneys is also sometimes used, but locals now consider it outdated. Part of the Northern Isles along with Shetland, ...
,
Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...
*
Colaba Causeway Colaba Causeway, officially known as Shahid Bhagat Singh Road, is a commercial street, and a major causeway or land link between Colaba and the Old Woman's Island in the city of Mumbai, India. It lies close to the Fort area, and to the east of ...
,
Mumbai Mumbai ( ; ), also known as Bombay ( ; its official name until 1995), is the capital city of the Indian state of Maharashtra. Mumbai is the financial capital and the most populous city proper of India with an estimated population of 12 ...
, India *
Courtney Campbell Causeway The Courtney Campbell Causeway is the northernmost bridge across Old Tampa Bay, carrying State Road 60 between Clearwater, Florida in Pinellas County and Tampa, Florida in Hillsborough County. History The Causeway was commissioned by th ...
,
Tampa Bay Tampa Bay is a large natural harbor and shallow estuary connected to the Gulf of Mexico on the west-central coast of Florida, comprising Hillsborough Bay, McKay Bay, Old Tampa Bay, Middle Tampa Bay, and Lower Tampa Bay. The largest freshwater i ...
, Florida, United States *
Gaoji Causeway Gaoji Causeway () is a 2,212-meter-long causeway in Xiamen, Fujian, China. It links Gaoqi in downtown Xiamen Island across the Xiamen Bay to Jimei District on the mainland. It used to serve as a road and rail link, as well as water piping into ...
,
Xiamen Xiamen,), also known as Amoy ( ; from the Zhangzhou Hokkien pronunciation, zh, c=, s=, t=, p=, poj=Ē͘-mûi, historically romanized as Amoy, is a sub-provincial city in southeastern Fujian, People's Republic of China, beside the Taiwan Stra ...
, China *
Hindenburgdamm The Hindenburgdamm or Hindenburg Dam is an 11 km (7 mile) long causeway joining the North Frisian island of Sylt to mainland Schleswig-Holstein. Its coordinates are . It was opened on 1 June 1927 and is exclusively a railway corridor. Th ...
, 11km rail link between the island of
Sylt Sylt (; ; Söl'ring North Frisian: ) is an island in northern Germany, part of Nordfriesland district, Schleswig-Holstein, with a distinctively shaped shoreline. It belongs to the North Frisian Islands and is the largest island in North Fris ...
and the German mainland () *
Johor–Singapore Causeway The Johor–Singapore Causeway is a causeway consisting of a combined railway and motorway crossing that links Malaysia's second largest city of Johor Bahru across the Straits of Johor to the district and town of Woodlands in Singapore. It ...
() *
King Fahd Causeway The King Fahd Causeway () is a 25 km (15.5 mi) long series of bridges and causeways connecting Khobar, Saudi Arabia, and Al Jasra, Bahrain. Its five bridges rest on 536 concrete pylons, with seven embankments in the Gulf's shallowe ...
,
Bahrain Bahrain, officially the Kingdom of Bahrain, is an island country in West Asia. Situated on the Persian Gulf, it comprises a small archipelago of 50 natural islands and an additional 33 artificial islands, centered on Bahrain Island, which mak ...
,
Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in West Asia. Located in the centre of the Middle East, it covers the bulk of the Arabian Peninsula and has a land area of about , making it the List of Asian countries ...
() *
Lake Cuitzeo Lake Cuitzeo () is a lake in the central part of Mexico, in the state of Michoacán. It has an area of . The lake is astatic, meaning the volume and level of water in the lake fluctuates frequently. It is the second-largest freshwater lake in Mexi ...
Causeway,
Michoacán Michoacán, formally Michoacán de Ocampo, officially the Free and Sovereign State of Michoacán de Ocampo, is one of the 31 states which, together with Mexico City, compose the Political divisions of Mexico, Federal Entities of Mexico. The stat ...
, Mexico
19.9380°N 101.1547°W
*
Lake Pontchartrain Causeway The Lake Pontchartrain Causeway (), also known simply as The Causeway, is a fixed link composed of two parallel bridges crossing Lake Pontchartrain in southeastern Louisiana, United States. The longer of the two bridges is long. The southern ...
,
Metairie, Louisiana Metairie ( ) is an Unincorporated area, unincorporated community and census-designated place (CDP) in Jefferson Parish, Louisiana, United States, and is part of the New Orleans metropolitan area. With a population of 143,507 in 2020, Metairie is ...
, Southern;
Mandeville, Louisiana Mandeville is a city in St. Tammany Parish, Louisiana, United States. As of the 2020 United States census, its population was 13,192. Mandeville is located on the north shore of Lake Pontchartrain, south of Interstate 12. It is located direct ...
, Northern, United States *
Lucin Cutoff The Lucin Cutoff is a railroad line in Utah, United States that runs from Ogden to its namesake in Lucin. The most prominent feature of the cutoff was a railroad trestle crossing the Great Salt Lake, which was in use from 1904 until the l ...
railroad causeway across the
Great Salt Lake The Great Salt Lake is the largest saltwater lake in the Western Hemisphere and the eighth-largest terminal lake in the world. It lies in the northern part of the U.S. state of Utah and has a substantial impact upon the local climate, partic ...
in Utah, USA *
MacArthur Causeway The General Douglas MacArthur Causeway is a six-lane causeway that connects Greater Downtown Miami, Downtown Miami to South Beach via Biscayne Bay in Miami-Dade County, Florida, Miami-Dade County. The highway is the singular roadway connecting ...
,
Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...
, United States *
Mahim Causeway The Mahim Causeway is a vital link road connecting Mumbai City district/South Mumbai (Churchgate to Mahim) with its Northern and Western Mumbai Suburban district, Suburbs (Bandra to Dahisar). The causeway links the neighbourhoods of Mahim to the ...
,
Mumbai Mumbai ( ; ), also known as Bombay ( ; its official name until 1995), is the capital city of the Indian state of Maharashtra. Mumbai is the financial capital and the most populous city proper of India with an estimated population of 12 ...
, India *
Pulaski Skyway The Pulaski Skyway is a four-lane bridge-causeway in the northeastern part of the U.S. state of New Jersey, carrying a freeway designated U.S. Route 1/9 (US 1/9) for most of its length. The structure has a total length of . Its long ...
*
Robert Moses Causeway The Robert Moses Causeway is an state parkway in Suffolk County, New York on Long Island. It is named for the master builder and urban planner Robert Moses. The parkway, originally known as the Captree Causeway, connects West Islip on Long ...
,
Bay Shore Bay Shore is a hamlet and census-designated place (CDP) in the Town of Islip, New York, United States. It is situated on the South Shore of Long Island, adjoining the Great South Bay. The population of the CDP was 29,244 at the time of the 2020 ...
,
Long Island Long Island is a densely populated continental island in southeastern New York (state), New York state, extending into the Atlantic Ocean. It constitutes a significant share of the New York metropolitan area in both population and land are ...
,
New York New York most commonly refers to: * New York (state), a state in the northeastern United States * New York City, the most populous city in the United States, located in the state of New York New York may also refer to: Places United Kingdom * ...
, United States

* Rømødæmningen, 9km link between
Rømø Rømø (, ) is a Danish island in the Wadden Sea. Rømø is part of Tønder Municipality. The island had 650 inhabitants as of 1 January 2011,
, and the Danish mainland *
Sanibel Causeway The Sanibel Causeway is a causeway in Southwest Florida that spans San Carlos Bay, connecting Sanibel Island with the Florida mainland in Punta Rassa, Florida, Punta Rassa. The causeway consists of three separate two-lane bridge spans, and two- ...
,
Sanibel Sanibel is an island and city in Lee County, Florida, United States. The population was 6,382 at the 2020 census, down from 6,469 at the 2010 census. It is part of the Cape Coral-Fort Myers, Florida Metropolitan Statistical Area. The island, al ...
, Florida, United States *
Sloedam The Sloedam is a 1 km long dam, that was constructed in 1871, as a necessary part of the Roosendaal–Vlissingen railway, Roosendaal-Vlissingen Railway, the so-called ''Zeeuwse Lijn'' (Zealandic Line). Additionally this dam connected the islan ...
,
Zeeland Zeeland (; ), historically known in English by the Endonym and exonym, exonym Zealand, is the westernmost and least populous province of the Netherlands. The province, located in the southwest of the country, borders North Brabant to the east ...
,
Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
*
Swarkestone Swarkestone is a village and civil parish in the South Derbyshire district of Derbyshire, England. The population at the 2011 Census was 187. Swarkestone has a very old village church, a full cricket pitch, a canal with a Georgian lock keepers ...
causeway,
Derby Derby ( ) is a City status in the United Kingdom, city and Unitary authorities of England, unitary authority area on the River Derwent, Derbyshire, River Derwent in Derbyshire, England. Derbyshire is named after Derby, which was its original co ...
, England, United Kingdom *
The Causeway The Causeway is an arterial traffic crossing in Perth, Western Australia, linking the inner-city suburbs of East Perth, Western Australia, East Perth and Victoria Park, Western Australia, Victoria Park. It is carried over the Swan River (Weste ...
,
Bermuda Bermuda is a British Overseas Territories, British Overseas Territory in the Atlantic Ocean, North Atlantic Ocean. The closest land outside the territory is in the American state of North Carolina, about to the west-northwest. Bermuda is an ...
*
The Causeway The Causeway is an arterial traffic crossing in Perth, Western Australia, linking the inner-city suburbs of East Perth, Western Australia, East Perth and Victoria Park, Western Australia, Victoria Park. It is carried over the Swan River (Weste ...
,
Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...
*
Venice Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are li ...
() *
Yolo Causeway The Yolo Causeway is a long elevated highway viaduct on Interstate 80 that crosses the Yolo Bypass floodplain, connecting the cities of West Sacramento, California and Davis, California. It is officially named the Blecher-Freeman Memorial Cau ...
,
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
, USA *
Ponte Conde de Linhares The Ponte Conde de Linhares (), often shortened to Ponte de Linhares is a long causeway connecting Ribandar to the main city of Panjim (now Panaji) in Goa, India. It runs along the flood plains of the Mandovi River and is surrounded by vari ...
,
Panjim Panaji (; , , )also known as Panjim, is the capital of the Indian state of Goa and the headquarters of North Goa district. Previously, it was the territorial capital of the former Portuguese India. It lies on the banks of the Mandovi river est ...
,
Goa Goa (; ; ) is a state on the southwestern coast of India within the Konkan region, geographically separated from the Deccan highlands by the Western Ghats. It is bound by the Indian states of Maharashtra to the north, and Karnataka to the ...
, India. The 3.2 km route was the longest causeway in
Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
at the time of its completion in 1634. *
Cherkasy Cherkasy (, ) is a city in central Ukraine. Cherkasy serves as the administrative centre of Cherkasy Oblast as well as Cherkasy Raion within the oblast. The city has a population of Cherkasy is the cultural, educational and industrial centre ...
Dam ( :uk:Черкаська дамба), Ukraine *
Cayo Santa María Causeway Cayo or cayó may refer to: * ''Cayo'' (film), a 2005 Puerto Rican film starring Roselyn Sánchez * Cayo District, a district in the west of the nation of Belize ** San Ignacio, Belize, a town in the Cayo District (originally named "El Cayo") * C ...
, Cuba *
Cayo Coco Causeway Cayo or cayó may refer to: * ''Cayo'' (film), a 2005 Puerto Rican film starring Roselyn Sánchez * Cayo District, a district in the west of the nation of Belize ** San Ignacio, Belize, a town in the Cayo District (originally named "El Cayo") * C ...
, Cuba


Disadvantages

A major drawback of causeways is that, unlike tunnels or bridges, they prevent shipping through the strait they cross. In some cases, causeways have been built with "gates" or other facilities to permit shipping to pass through.


Ecological consequences

Causeways affect currents and may therefore be involved in
beach erosion Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms. The landward r ...
or changed deposition patterns; this effect has been a problem at the
Hindenburgdamm The Hindenburgdamm or Hindenburg Dam is an 11 km (7 mile) long causeway joining the North Frisian island of Sylt to mainland Schleswig-Holstein. Its coordinates are . It was opened on 1 June 1927 and is exclusively a railway corridor. Th ...
in northern Germany. During
hurricane A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its ...
seasons, the winds and rains of approaching
tropical storm A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its lo ...
s—as well as waves generated by the storm in the surrounding bodies of water—make traversing causeways problematic at best and impossibly dangerous during the fiercest parts of the storms. For this reason (and related reasons, such as the need to minimize
traffic jam Traffic congestion is a condition in transport that is characterized by slower speeds, longer trip times, and increased vehicular queueing. Traffic congestion on urban road networks has increased substantially since the 1950s, resulting in m ...
s on both the roads approaching the causeway and the causeway itself),
emergency evacuation Emergency evacuation is an immediate egress or escape of people away from an area that contains an imminent threat, an ongoing threat or a hazard to lives or property. Examples range from the small-scale evacuation of a building due to a storm ...
of
island An island or isle is a piece of land, distinct from a continent, completely surrounded by water. There are continental islands, which were formed by being split from a continent by plate tectonics, and oceanic islands, which have never been ...
residents is a high priority for local, regional, and even national authorities. Causeways can separate populations of wildlife, putting further pressure on
endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...
. Causeways can cause a mineral imbalance between portions of a body of water. For example, the
Lucin Cutoff The Lucin Cutoff is a railroad line in Utah, United States that runs from Ogden to its namesake in Lucin. The most prominent feature of the cutoff was a railroad trestle crossing the Great Salt Lake, which was in use from 1904 until the l ...
, built across the
Great Salt Lake The Great Salt Lake is the largest saltwater lake in the Western Hemisphere and the eighth-largest terminal lake in the world. It lies in the northern part of the U.S. state of Utah and has a substantial impact upon the local climate, partic ...
has caused the northern half of the lake to have much higher salinity, to the point that the two halves show a major color imbalance. Furthermore, the difference in salinity has become so severe that native
brine shrimp ''Artemia'' is a genus of aquatic crustaceans also known as brine shrimp or ''Sea-Monkeys, sea monkeys''. It is the only genus in the Family (biology), family Artemiidae. The first historical record of the existence of ''Artemia'' dates back to t ...
cannot survive in much of the waters, with the northern part being too salty and the southern part being insufficiently salty.


Gallery

File:I-195 Miami eastbound.jpg, The
Julia Tuttle Causeway Julia may refer to: People *Julia (given name), including a list of people with the name *Julia (surname), including a list of people with the name *Julia gens, a patrician family of Ancient Rome *Julia (clairvoyant) (fl. 1689), lady's maid of Qu ...
, one of the major arteries connecting
Miami Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...
and
Miami Beach Miami Beach is a coastal resort city in Miami-Dade County, Florida, United States. It is part of the Miami metropolitan area of South Florida. The municipality is located on natural and human-made barrier islands between the Atlantic Ocean an ...
in
Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...
File:Carver Bridge.jpg, Causeway on the
West Branch Reservoir The West Branch Reservoir is a reservoir in the New York City water supply system. Formed by impounding the upper reaches of the West Branch of the Croton River, it is located in the Putnam County, New York, towns of Carmel, and Kent, about ...
in
Carmel, New York Carmel (pronounced ) is a town in Putnam County, New York, United States. As of the 2020 United States census, the town had a population of 33,576. The Town of Carmel is on the southern border of Putnam County, abutting Westchester County, ap ...
, typical of the form throughout the
New York City water supply system The New York City water supply system is a combination of Aqueduct (water supply), aqueducts, reservoirs, and tunnels which supplies fresh water to New York City. With three major water systems (New Croton Aqueduct, Croton, Catskill Aqueduct, Ca ...
File:Lucin_Cutoff_aerial.jpg, Aerial view of the
Lucin Cutoff The Lucin Cutoff is a railroad line in Utah, United States that runs from Ogden to its namesake in Lucin. The most prominent feature of the cutoff was a railroad trestle crossing the Great Salt Lake, which was in use from 1904 until the l ...
railway trestle in
Utah Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
, U.S.A., before removal. The 1950s causeway is visible to its right. File:Antelope Island Causeway.jpg, The causeway to Antelope Island in the
Great Salt Lake The Great Salt Lake is the largest saltwater lake in the Western Hemisphere and the eighth-largest terminal lake in the world. It lies in the northern part of the U.S. state of Utah and has a substantial impact upon the local climate, partic ...
, Utah File:Empty Singapore-Malaysia Causeway.jpg, The
Johor–Singapore Causeway The Johor–Singapore Causeway is a causeway consisting of a combined railway and motorway crossing that links Malaysia's second largest city of Johor Bahru across the Straits of Johor to the district and town of Woodlands in Singapore. It ...
is an important road which connects
Singapore Singapore, officially the Republic of Singapore, is an island country and city-state in Southeast Asia. The country's territory comprises one main island, 63 satellite islands and islets, and one outlying islet. It is about one degree ...
to
Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...
File:SorellCauseway.JPG, The Sorell Causeway in
Tasmania Tasmania (; palawa kani: ''Lutruwita'') is an island States and territories of Australia, state of Australia. It is located to the south of the Mainland Australia, Australian mainland, and is separated from it by the Bass Strait. The sta ...
, Australia File:Heading north on Lake Pontchartrain Causeway.jpg,
Lake Pontchartrain Causeway The Lake Pontchartrain Causeway (), also known simply as The Causeway, is a fixed link composed of two parallel bridges crossing Lake Pontchartrain in southeastern Louisiana, United States. The longer of the two bridges is long. The southern ...
bridge in
New Orleans New Orleans (commonly known as NOLA or The Big Easy among other nicknames) is a Consolidated city-county, consolidated city-parish located along the Mississippi River in the U.S. state of Louisiana. With a population of 383,997 at the 2020 ...
File:Causeway at Colwyn Bay Beach.jpg, Causeway across Colwyn Bay Beach,
Wales Wales ( ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by the Irish Sea to the north and west, England to the England–Wales border, east, the Bristol Channel to the south, and the Celtic ...
, United Kingdom File:King Fahd causeway satellite.png, The
King Fahd Causeway The King Fahd Causeway () is a 25 km (15.5 mi) long series of bridges and causeways connecting Khobar, Saudi Arabia, and Al Jasra, Bahrain. Its five bridges rest on 536 concrete pylons, with seven embankments in the Gulf's shallowe ...
from satellite photo File:BermudaCauseway.jpg,
The Causeway The Causeway is an arterial traffic crossing in Perth, Western Australia, linking the inner-city suburbs of East Perth, Western Australia, East Perth and Victoria Park, Western Australia, Victoria Park. It is carried over the Swan River (Weste ...
in St. George's,
Bermuda Bermuda is a British Overseas Territories, British Overseas Territory in the Atlantic Ocean, North Atlantic Ocean. The closest land outside the territory is in the American state of North Carolina, about to the west-northwest. Bermuda is an ...
File:DSC 0747 土手道.jpg, Causeway that connects Victor Harbor with Granite Island in
Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
(Completed in
1867 There were only 354 days this year in the newly purchased territory of Alaska. When the territory transferred from the Russian Empire to the United States, the calendric transition from the Julian to the Gregorian Calendar was made with only 1 ...
) Image:CansoCauseway.jpg,
Canso Causeway The Canso Causeway () is a rock-fill causeway crossing the Strait of Canso, provides access by road to the Atlantic Ocean, to the Gulf of St. Lawrence or Cape Breton Island to the Nova Scotia peninsula. Its crest thickness is , carrying t ...
from
Cape Breton Island Cape Breton Island (, formerly '; or '; ) is a rugged and irregularly shaped island on the Atlantic coast of North America and part of the province of Nova Scotia, Canada. The island accounts for 18.7% of Nova Scotia's total area. Although ...


See also

* Causey Arch,
County Durham County Durham, officially simply Durham, is a ceremonial county in North East England.UK General Acts 1997 c. 23Lieutenancies Act 1997 Schedule 1(3). From legislation.gov.uk, retrieved 6 April 2022. The county borders Northumberland and Tyne an ...
,
England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
*
Causewayed enclosure A causewayed enclosure is a type of large prehistoric Earthworks (Archaeology), earthwork common to the early Neolithic in Europe. It is an enclosure (archaeology), enclosure marked out by ditches and banks, with a number of causeways crossing ...
*
Kūlgrinda (plural ; from the Samogitian 'stone' and 'pavement', itself from 'to rake, pull together') is a hidden, usually winding, underwater stony road or ford across swamps, swampy areas, lakes, or along rivers, used as a defense in the lands of ...
*
Sacbe A sacbe, plural sacbeob (Yucatec Maya: singular ''sakbej'', plural ''sakbejo'ob''), or "white road", is a raised paved road built by the Maya civilization of pre-Columbian Mesoamerica. Most connect temples, plazas, and groups of structures withi ...


References


Further reading

* * * * *


External links

* {{Authority control Buildings and structures by type Transport buildings and structures