A pontoon bridge (or ponton bridge), also known as a floating bridge, uses
floats or shallow-
draft
Draft, The Draft, or Draught may refer to:
Watercraft dimensions
* Draft (hull), the distance from waterline to keel of a vessel
* Draft (sail), degree of curvature in a sail
* Air draft, distance from waterline to the highest point on a vesse ...
boats
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, shape, cargo or passenger capacity, or its ability to carry boats.
Small boats are typically found on inl ...
to support a continuous deck for pedestrian and vehicle travel. The
buoyancy
Buoyancy (), or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the p ...
of the supports limits the maximum load that they can carry.
Most pontoon bridges are temporary and used in wartime and civil emergencies. There are permanent pontoon bridges in civilian use that can carry highway traffic. Permanent floating bridges are useful for sheltered water crossings if it is not considered economically feasible to suspend a bridge from anchored
pier
image:Brighton Pier, Brighton, East Sussex, England-2Oct2011 (1).jpg, Seaside pleasure pier in Brighton, England. The first seaside piers were built in England in the early 19th century.
A pier is a raised structure that rises above a body of ...
s. Such bridges can require a section that is elevated or can be raised or removed to allow waterborne traffic to pass.
Pontoon bridges have been in use since ancient times and have been used to great advantage in many battles throughout history, such as the
Battle of Garigliano
The Battle of Garigliano was fought in 915 between Christian forces and the Saracens. Pope John X personally led the Christian forces into battle. The aim was to destroy the Arab fortress on the Garigliano River, which had threatened central Ita ...
, the
Battle of Oudenarde
The Battle of Oudenarde, also known as the Battle of Oudenaarde, was a major engagement of the War of the Spanish Succession, pitting a Grand Alliance force consisting of eighty thousand men under the command of the Duke of Marlborough and Prin ...
, the
crossing of the Rhine
The crossing of the Rhine River by a mixed group of barbarians which included Vandals, Alans and Suebi is traditionally considered to have occurred on the last day of the year 406 (December 31, 406). The crossing transgressed one of the Roman ...
during
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
, the
Iran–Iraq War
The Iran–Iraq War was an armed conflict between Iran and Iraq that lasted from September 1980 to August 1988. It began with the Iraqi invasion of Iran and lasted for almost eight years, until the acceptance of United Nations Security Council ...
's
Operation Dawn 8
The First Battle of al-Faw was a battle of the Iran–Iraq War, fought on the al-Faw peninsula between 10 February and 10 March 1986. The Iranian operation is considered to be one of Iran's greatest achievements in the Iran–Iraq War. The Ir ...
, and most recently, in the
2022 Russian invasion of Ukraine
On 24 February 2022, in a major escalation of the Russo-Ukrainian War, which began in 2014. The invasion has resulted in tens of thousands of deaths on both sides. It has caused Europe's largest refugee crisis since World War II. An ...
, after crossings over the
Dnipro
Dnipro, previously called Dnipropetrovsk from 1926 until May 2016, is Ukraine's fourth-largest city, with about one million inhabitants. It is located in the eastern part of Ukraine, southeast of the Ukrainian capital Kyiv on the Dnieper Rive ...
river had been destroyed.
Definition
A pontoon bridge is a collection of specialized, shallow draft boats or
floats, connected together to cross a river or canal, with a track or deck attached on top. The water
buoyancy
Buoyancy (), or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the p ...
supports the boats, limiting the maximum load to the total and point buoyancy of the pontoons or boats. The supporting boats or floats can be open or closed, temporary or permanent in installation, and made of rubber, metal, wood, or concrete. The decking may be temporary or permanent, and constructed out of wood, modular metal, or asphalt or concrete over a metal frame.
Etymology
The spelling "ponton" in English dates from at least 1870. The use continued in references found in U.S. patents during the 1890s.
[ It continued to be spelled in that fashion through World War II, when temporary floating bridges were used extensively throughout the ]European theatre
The European theatre of World War II was one of the two main theatres of combat during World War II. It saw heavy fighting across Europe for almost six years, starting with Germany's invasion of Poland on 1 September 1939 and ending with the ...
. U.S. combat engineers
A combat engineer (also called pioneer or sapper) is a type of soldier who performs military engineering tasks in support of land forces combat operations. Combat engineers perform a variety of military engineering, tunnel and mine warfare ta ...
commonly pronounced the word "ponton" rather than "pontoon" and U.S. military manuals spelled it using a single 'o'. The U.S. military differentiated between the bridge itself ("ponton") and the floats used to provide buoyancy ("pontoon"). The original word was derived from Old French ''ponton'', from Latin ''ponto'' ("ferryboat"), from ''pons'' ("bridge").
Design
When designing a pontoon bridge, the civil engineer
A civil engineer is a person who practices civil engineering – the application of planning, designing, constructing, maintaining, and operating infrastructure while protecting the public and environmental health, as well as improving existing ...
must take into consideration the Archimedes' principle
Archimedes' principle (also spelled Archimedes's principle) states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. Archimede ...
: Each pontoon can support a load equal to the mass of the water that it displaces. This load includes the mass of the bridge and the pontoon itself. If the maximum load of a bridge section is exceeded, one or more pontoons become submerged. Flexible connections have to allow for one section of the bridge to be weighted down more heavily than the other parts. The roadway across the pontoons should be relatively light, so as not to limit the carrying capacity of the pontoons.
The connection of the bridge to shore requires the design of approaches that are not too steep, protect the bank from erosion and provide for movements of the bridge during (tidal) changes of the water level.
Floating bridges were historically constructed using wood. Pontoons were formed by simply lashing several barrels together, by rafts of timbers, or by using boats. Each bridge section consisted of one or more pontoons, which were maneuvered into position and then anchored underwater or on land. The pontoons were linked together using wooden stringer
Stringer may refer to:
Structural elements
* Stringer (aircraft), or longeron, a strip of wood or metal to which the skin of an aircraft is fastened
* Stringer (slag), an inclusion, possibly leading to a defect, in cast metal
* Stringer (stairs), ...
s called ''balks''. The balks were covered by a series of cross planks called ''chesses'' to form the road surface, and the chesses were secured with side guard rail
Guard rail, guardrails, or protective guarding, in general, are a boundary feature and may be a means to prevent or deter access to dangerous or off-limits areas while allowing light and visibility in a greater way than a fence. Common shapes ...
s.
A floating bridge can be built in a series of sections, starting from an anchored point on the shore. Modern pontoon bridges usually use pre-fabricated floating structures.
Most pontoon bridges are designed for temporary use, but bridges across water bodies with a constant water level can remain in place much longer. Hobart Bridge
The Hobart Bridge was a floating arch bridge that crossed the River Derwent, connecting the eastern and western shores of the city of Hobart, Tasmania, Australia.
History
Plans for a bridge to link the Derwent River’s two shores near Hoba ...
, a long pontoon bridge built 1943 in Hobart
Hobart ( ; Nuennonne/Palawa kani: ''nipaluna'') is the capital and most populous city of the Australian island state of Tasmania. Home to almost half of all Tasmanians, it is the least-populated Australian state capital city, and second-small ...
, was only replaced after 21 years. The fourth Galata Bridge
The Galata Bridge ( tr, Galata Köprüsü, ) is a bridge that spans the Golden Horn in Istanbul, Turkey. From the end of the 19th century in particular, the bridge has featured in Turkish literature, theater, poetry and novels. The current Galata ...
that spans the Golden Horn
The Golden Horn ( tr, Altın Boynuz or ''Haliç''; grc, Χρυσόκερας, ''Chrysókeras''; la, Sinus Ceratinus) is a major urban waterway and the primary inlet of the Bosphorus in Istanbul, Turkey. As a natural estuary that connects with t ...
in Istanbul
Istanbul ( , ; tr, İstanbul ), formerly known as Constantinople ( grc-gre, Κωνσταντινούπολις; la, Constantinopolis), is the List of largest cities and towns in Turkey, largest city in Turkey, serving as the country's economic, ...
, Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
was built in 1912 and operated for 80 years.
Provisional and lightweight pontoon bridge are easily damaged. The bridge can be dislodged or inundated when the load limit of the bridge is exceeded. The bridge can be induced to sway or oscillate
Oscillation is the repetitive or periodic variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples of oscillation include a swinging pendulum ...
in a hazardous manner from the swell, from a storm, a flood or a fast moving load. Ice or floating objects (flotsam
In maritime law, flotsam'','' jetsam'','' lagan'','' and derelict are specific kinds of shipwreck. The words have specific nautical meanings, with legal consequences in the law of admiralty and marine salvage. A shipwreck is defined as the rema ...
) can accumulate on the pontoons, increasing the drag from river current and potentially damaging the bridge. See below for floating pontoon failures and disasters.
Historic uses
Ancient China
In ancient China
The earliest known written records of the history of China date from as early as 1250 BC, from the Shang dynasty (c. 1600–1046 BC), during the reign of king Wu Ding. Ancient historical texts such as the '' Book of Documents'' (early chapte ...
, the Zhou Dynasty
The Zhou dynasty ( ; Old Chinese ( B&S): *''tiw'') was a royal dynasty of China that followed the Shang dynasty. Having lasted 789 years, the Zhou dynasty was the longest dynastic regime in Chinese history. The military control of China by th ...
Chinese text of the ''Shi Jing
The ''Classic of Poetry'', also ''Shijing'' or ''Shih-ching'', translated variously as the ''Book of Songs'', ''Book of Odes'', or simply known as the ''Odes'' or ''Poetry'' (; ''Shī''), is the oldest existing collection of Chinese poetry, co ...
'' (''Book of Odes'') records that King Wen of Zhou
King Wen of Zhou (; 1152–1050 BC, the Cultured King) was Count of state of Zhou, Zhou during the late Shang dynasty in ancient China. Although frequently confused with his fourth son Duke of Zhou, also known as "Lord Zhou", they are different hi ...
was the first to create a pontoon bridge in the 11th century BC. However, the historian Joseph Needham
Noel Joseph Terence Montgomery Needham (; 9 December 1900 – 24 March 1995) was a British biochemist, historian of science and sinologist known for his scientific research and writing on the history of Chinese science and technology, in ...
has pointed out that in all likely scenarios, the temporary pontoon bridge was invented during the 9th or 8th century BC in China, as this part was perhaps a later addition to the book (considering how the book had been edited up until the Han Dynasty
The Han dynasty (, ; ) was an imperial dynasty of China (202 BC – 9 AD, 25–220 AD), established by Liu Bang (Emperor Gao) and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–207 BC) and a warr ...
, 202 BC – 220 AD). Although earlier temporary pontoon bridges had been made in China, the first secure and permanent ones (and linked with iron chains) in China came first during the Qin Dynasty
The Qin dynasty ( ; zh, c=秦朝, p=Qín cháo, w=), or Ch'in dynasty in Wade–Giles romanization ( zh, c=, p=, w=Ch'in ch'ao), was the first Dynasties in Chinese history, dynasty of Imperial China. Named for its heartland in Qin (state), ...
(221–207 BC). The later Song Dynasty
The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest ...
(960–1279 AD) Chinese statesman Cao Cheng Cao or CAO may refer to:
Mythology
*Cao (bull), a legendary bull in Meitei mythology
Companies or organizations
* Air China Cargo, ICAO airline designator CAO
*CA Oradea, Romanian football club
*CA Osasuna, Spanish football club
*Canadian Assoc ...
once wrote of early pontoon bridges in China (spelling of Chinese in Wade-Giles format):
During the Eastern Han Dynasty (25–220 AD), the Chinese created a very large pontoon bridge that spanned the width of the Yellow River
The Yellow River or Huang He (Chinese: , Standard Beijing Mandarin, Mandarin: ''Huáng hé'' ) is the second-longest river in China, after the Yangtze River, and the List of rivers by length, sixth-longest river system in the world at th ...
. There was also the rebellion of Gongsun Shu in 33 AD, where a large pontoon bridge with fortified posts was constructed across the Yangtze River
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...
, eventually broken through with ramming
In warfare, ramming is a technique used in air, sea, and land combat. The term originated from battering ram, a siege weapon used to bring down fortifications by hitting it with the force of the ram's momentum, and ultimately from male sheep. Thus, ...
ships by official Han troops under Commander Cen Peng. During the late Eastern Han into the Three Kingdoms
The Three Kingdoms () from 220 to 280 AD was the tripartite division of China among the dynastic states of Cao Wei, Shu Han, and Eastern Wu. The Three Kingdoms period was preceded by the Han dynasty#Eastern Han, Eastern Han dynasty and wa ...
period, during the Battle of Chibi in 208 AD, the Prime Minister Cao Cao
Cao Cao () (; 155 – 15 March 220), courtesy name Mengde (), was a Chinese statesman, warlord and poet. He was the penultimate Grand chancellor (China), grand chancellor of the Eastern Han dynasty, and he amassed immense power in the End of ...
once linked the majority of his fleet together with iron chains, which proved to be a fatal mistake once he was thwarted with a fire attack by Sun Quan
Sun Quan (, Chinese: 孫權) (183 – 21 May 252), courtesy name Zhongmou (), posthumously known as Emperor Da of Wu, was the founder of the Eastern Wu dynasty, one of the Three Kingdoms of China. He inherited control of the warlord regime es ...
's fleet.
The armies of Emperor Taizu of Song
Emperor Taizu of Song (21 March 927 – 14 November 976), personal name Zhao Kuangyin, courtesy name Yuanlang, was the founder and first emperor of the Song dynasty of China. He reigned from 960 until his death in 976. Formerly a distinguish ...
had a large pontoon bridge built across the Yangtze River in 974 in order to secure supply lines during the Song Dynasty
The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest ...
's conquest of the Southern Tang
Southern Tang () was a state in Southern China that existed during Five Dynasties and Ten Kingdoms period, which proclaimed itself to be the successor of the former Tang dynasty. The capital was located at Nanjing in present-day Jiangsu Province ...
.
On October 22, 1420, Ghiyasu'd-Din Naqqah, the official diarist of the embassy sent by the Timurid ruler of Persia
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
, Mirza Shahrukh (r. 1404–1447), to the Ming Dynasty
The Ming dynasty (), officially the Great Ming, was an Dynasties in Chinese history, imperial dynasty of China, ruling from 1368 to 1644 following the collapse of the Mongol Empire, Mongol-led Yuan dynasty. The Ming dynasty was the last ort ...
of China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
during the reign of the Yongle Emperor
The Yongle Emperor (; pronounced ; 2 May 1360 – 12 August 1424), personal name Zhu Di (), was the third Emperor of the Ming dynasty, reigning from 1402 to 1424.
Zhu Di was the fourth son of the Hongwu Emperor, the founder of the Ming dyn ...
(r. 1402–1424), recorded his sight and travel over a large floating pontoon bridge at Lanzhou
Lanzhou (, ; ) is the capital and largest city of Gansu Province in Northwest China. Located on the banks of the Yellow River, it is a key regional transportation hub, connecting areas further west by rail to the eastern half of the country. H ...
(constructed earlier in 1372) as he crossed the Yellow River
The Yellow River or Huang He (Chinese: , Standard Beijing Mandarin, Mandarin: ''Huáng hé'' ) is the second-longest river in China, after the Yangtze River, and the List of rivers by length, sixth-longest river system in the world at th ...
on this day. He wrote that it was:
Greco-Roman era
The Greek
Greek may refer to:
Greece
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group.
*Greek language, a branch of the Indo-European language family.
**Proto-Greek language, the assumed last common ancestor ...
writer Herodotus
Herodotus ( ; grc, , }; BC) was an ancient Greek historian and geographer from the Greek city of Halicarnassus, part of the Persian Empire (now Bodrum, Turkey) and a later citizen of Thurii in modern Calabria ( Italy). He is known f ...
in his '' Histories'', records several pontoon bridges. Emperor Caligula built a bridge at Baiae in 37 AD. For Emperor Darius I The Great
Darius I ( peo, 𐎭𐎠𐎼𐎹𐎺𐎢𐏁 ; grc-gre, Δαρεῖος ; – 486 BCE), commonly known as Darius the Great, was a Persian ruler who served as the third King of Kings of the Achaemenid Empire, reigning from 522 BCE until his d ...
of Persia
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
(522–485 BC), the Greek Mandrocles of Samos Mandrocles was an ancient Greek engineer from Samos who built a pontoon bridge over the Bosporus for King Darius I to conquer Thrace. Mandrocles dedicated a painting, depicting the bridging of the straits, to the goddess Hera in the Heraion of Sa ...
once engineered a pontoon bridge that stretched across the Bosporus
The Bosporus Strait (; grc, Βόσπορος ; tr, İstanbul Boğazı 'Istanbul strait', colloquially ''Boğaz'') or Bosphorus Strait is a natural strait and an internationally significant waterway located in Istanbul in northwestern T ...
, linking Asia to Europe, so that Darius could pursue the fleeing Scythians
The Scythians or Scyths, and sometimes also referred to as the Classical Scythians and the Pontic Scythians, were an Ancient Iranian peoples, ancient Eastern Iranian languages, Eastern
* : "In modern scholarship the name 'Sakas' is reserved f ...
as well as move his army into position in the Balkans
The Balkans ( ), also known as the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throughout the who ...
to overwhelm Macedon
Macedonia (; grc-gre, Μακεδονία), also called Macedon (), was an ancient kingdom on the periphery of Archaic and Classical Greece, and later the dominant state of Hellenistic Greece. The kingdom was founded and initially ruled by ...
. Other spectacular pontoon bridges were Xerxes' Pontoon Bridges
Xerxes' Pontoon Bridges were constructed in 480 BC during the second Persian invasion of Greece upon the order of Xerxes I of Persia for the purpose of Xerxes’ army to traverse the Hellespont (the present-day Dardanelles) from Asia into Thra ...
across the Hellespont
The Dardanelles (; tr, Çanakkale Boğazı, lit=Strait of Çanakkale, el, Δαρδανέλλια, translit=Dardanéllia), also known as the Strait of Gallipoli from the Gallipoli peninsula or from Classical Antiquity as the Hellespont (; ...
by Xerxes I
Xerxes I ( peo, 𐎧𐏁𐎹𐎠𐎼𐏁𐎠 ; grc-gre, Ξέρξης ; – August 465 BC), commonly known as Xerxes the Great, was the fourth King of Kings of the Achaemenid Empire, ruling from 486 to 465 BC. He was the son and successor of ...
in 480 BC to transport his huge army into Europe:
According to John Hale's ''Lords of the Sea'', to celebrate the onset of the Sicilian Expedition
The Sicilian Expedition was an Athenian military expedition to Sicily, which took place from 415–413 BC during the Peloponnesian War between Athens on one side and Sparta, Syracuse and Corinth on the other. The expedition ended in a devas ...
(415 - 413 B.C.), the Athenian general, Nicias
Nicias (; Νικίας ''Nikias''; c. 470–413 BC) was an Athenian politician and general during the period of the Peloponnesian War. Nicias was a member of the Athenian aristocracy and had inherited a large fortune from his father, which was inve ...
, paid builders to engineer an extraordinary pontoon bridge composed of gilded and tapestried ships for a festival that drew Athenian
Athens ( ; el, Αθήνα, Athína ; grc, Ἀθῆναι, Athênai (pl.) ) is both the capital and largest city of Greece. With a population close to four million, it is also the seventh largest city in the European Union. Athens dominates ...
s and Ionians
The Ionians (; el, Ἴωνες, ''Íōnes'', singular , ''Íōn'') were one of the four major tribes that the Greeks considered themselves to be divided into during the ancient period; the other three being the Dorians, Aeolians, and Achae ...
across the sea to the sanctuary of Apollo
Apollo, grc, Ἀπόλλωνος, Apóllōnos, label=genitive , ; , grc-dor, Ἀπέλλων, Apéllōn, ; grc, Ἀπείλων, Apeílōn, label=Arcadocypriot Greek, ; grc-aeo, Ἄπλουν, Áploun, la, Apollō, la, Apollinis, label= ...
on Delos
The island of Delos (; el, Δήλος ; Attic: , Doric: ), near Mykonos, near the centre of the Cyclades archipelago, is one of the most important mythological, historical, and archaeological sites in Greece. The excavations in the island are ...
. On the occasion when Nicias was a sponsor, young Athenians paraded across the boats, singing as they walked, to give the armada a spectacular farewell.
The late Roman
Roman or Romans most often refers to:
*Rome, the capital city of Italy
*Ancient Rome, Roman civilization from 8th century BC to 5th century AD
*Roman people, the people of ancient Rome
*''Epistle to the Romans'', shortened to ''Romans'', a letter ...
writer Vegetius
Publius (or Flavius) Vegetius Renatus, known as Vegetius (), was a writer of the Later Roman Empire (late 4th century). Nothing is known of his life or station beyond what is contained in his two surviving works: ''Epitoma rei militaris'' (also r ...
, in his work '' De Re Militari'', wrote:
The emperor Caligula
Gaius Julius Caesar Augustus Germanicus (31 August 12 – 24 January 41), better known by his nickname Caligula (), was the third Roman emperor, ruling from 37 until his assassination in 41. He was the son of the popular Roman general Germanicu ...
is said to have ridden a horse across a pontoon bridge stretching two miles between Baiae and Puteoli
Pozzuoli (; ; ) is a city and ''comune'' of the Metropolitan City of Naples, in the Italian region of Campania. It is the main city of the Phlegrean Peninsula.
History
Pozzuoli began as the Greek colony of ''Dicaearchia'' ( el, Δικα ...
while wearing the armour of Alexander the Great
Alexander III of Macedon ( grc, wikt:Ἀλέξανδρος, Ἀλέξανδρος, Alexandros; 20/21 July 356 BC – 10/11 June 323 BC), commonly known as Alexander the Great, was a king of the Ancient Greece, ancient Greek kingdom of Maced ...
to mock a soothsayer who had claimed he had "no more chance of becoming emperor than of riding a horse across the Bay of Baiae". Caligula's construction of the bridge cost a massive sum of money and added to discontent with his rule.
Middle Ages
During the Middle Ages, pontoons were used alongside regular boats to span rivers during campaigns, or to link communities which lacked resources to build permanent bridges. The Hun army of Attila
Attila (, ; ), frequently called Attila the Hun, was the ruler of the Huns
The Huns were a nomadic people who lived in Central Asia, the Caucasus, and Eastern Europe between the 4th and 6th century AD. According to European traditio ...
built a bridge across the Nišava
The Nišava or Nishava ( Bulgarian and sr-Cyrl, Нишава, ) is a river in Bulgaria and Serbia, a right tributary, and with a length of also the longest one, of the South Morava.
Course Bulgaria
The Nišava originates in western Bulg ...
during the siege of Naissus in 442 to bring heavy siege towers within range of the city. Sassanid
The Sasanian () or Sassanid Empire, officially known as the Empire of Iranians (, ) and also referred to by historians as the Neo-Persian Empire, was the last Iranian empire before the early Muslim conquests of the 7th-8th centuries AD. Named ...
forces crossed the Euphrates
The Euphrates () is the longest and one of the most historically important rivers of Western Asia. Tigris–Euphrates river system, Together with the Tigris, it is one of the two defining rivers of Mesopotamia ( ''the land between the rivers'') ...
on a quickly-built pontoon bridge during the siege of Kallinikos in 542. The Ostrogothic Kingdom
The Ostrogothic Kingdom, officially the Kingdom of Italy (), existed under the control of the Germanic peoples, Germanic Ostrogoths in Italian peninsula, Italy and neighbouring areas from 493 to 553.
In Italy, the Ostrogoths led by Theodoric the ...
constructed a fortified bridge across the Tiber
The Tiber ( ; it, Tevere ; la, Tiberis) is the third-longest river in Italy and the longest in Central Italy, rising in the Apennine Mountains in Emilia-Romagna and flowing through Tuscany, Umbria, and Lazio, where it is joined by the Riv ...
during the siege of Rome in 545 to block Byzantine
The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...
general Belisarius
Belisarius (; el, Βελισάριος; The exact date of his birth is unknown. – 565) was a military commander of the Byzantine Empire under the emperor Justinian I. He was instrumental in the reconquest of much of the Mediterranean terri ...
' relief flotillas to the city. The Avar Khaganate
The Pannonian Avars () were an alliance of several groups of Eurasian nomads of various origins. The peoples were also known as the Obri in chronicles of Rus, the Abaroi or Varchonitai ( el, Βαρχονίτες, Varchonítes), or Pseudo-Avars ...
forced Syriac-Roman engineers to construct two pontoon bridges across the Sava
The Sava (; , ; sr-cyr, Сава, hu, Száva) is a river in Central and Southeast Europe, a right-bank and the longest tributary of the Danube. It flows through Slovenia, Croatia and along its border with Bosnia and Herzegovina, and finally th ...
during the siege of Sirmium
The siege of Sirmium in 580–582 was a decisive event in the history of the Balkans. The fall of the city to the Pannonian Avars, Avars deprived the Byzantine Empire of its major stronghold on the northwestern Danube, opening the path for devasta ...
in 580 to completely surround the city with their troops and siege works.
Emperor Heraclius
Heraclius ( grc-gre, Ἡράκλειος, Hērákleios; c. 575 – 11 February 641), was List of Byzantine emperors, Eastern Roman emperor from 610 to 641. His rise to power began in 608, when he and his father, Heraclius the Elder, the Exa ...
crossed the Bosporus on horseback on a large pontoon bridge in 638. The army of the Umayyad Caliphate
The Umayyad Caliphate (661–750 CE; , ; ar, ٱلْخِلَافَة ٱلْأُمَوِيَّة, al-Khilāfah al-ʾUmawīyah) was the second of the four major caliphates established after the death of Muhammad. The caliphate was ruled by th ...
built a pontoon bridge over the Bosporus in 717 during the siege of Constantinople (717–718)
The second Arab siege of Constantinople in 717–718 was a combined land and sea offensive by the Muslim Arabs of the Umayyad Caliphate against the capital city of the Byzantine Empire, Constantinople. The campaign marked the culmination of twen ...
. The Carolingian
The Carolingian dynasty (; known variously as the Carlovingians, Carolingus, Carolings, Karolinger or Karlings) was a Frankish noble family named after Charlemagne, grandson of mayor Charles Martel and a descendant of the Arnulfing and Pippin ...
army of Charlemagne
Charlemagne ( , ) or Charles the Great ( la, Carolus Magnus; german: Karl der Große; 2 April 747 – 28 January 814), a member of the Carolingian dynasty, was King of the Franks from 768, King of the Lombards from 774, and the first Holy ...
constructed a portable pontoon bridge of anchored boats bound together and used it to cross the Danube during campaigns against the Avar Khaganate in the 790s. Charlemagne's army built two fortified pontoon bridges across the Elbe
The Elbe (; cs, Labe ; nds, Ilv or ''Elv''; Upper and dsb, Łobjo) is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia (western half of the Czech Repu ...
in 789 during a campaign against the Slavic Veleti
The Veleti, also known as Wilzi, Wielzians, and Wiltzes, were a group of medieval Lechitic tribes within the territory of Hither Pomerania, related to Polabian Slavs. They had formed together the Confederation of the Veleti, a loose monarchic c ...
. The German army of Otto the Great
Otto I (23 November 912 – 7 May 973), traditionally known as Otto the Great (german: Otto der Große, it, Ottone il Grande), was East Frankish king from 936 and Holy Roman Emperor from 962 until his death in 973. He was the oldest son of Henr ...
employed three pontoon bridges, made from pre-fabricated materials, to rapidly cross the Recknitz
The Recknitz (historically known as ''Raxa'') is a river in Mecklenburg-Vorpommern in northeastern Germany. The Recknitz's glacial valley stretches as far south as the heights at Glasewitz near Güstrow. The river has no definite source, but rathe ...
river at the Battle on the Raxa in 955 and win decisively against the Slavic Obotrites
The Obotrites ( la, Obotriti, Abodritorum, Abodritos…) or Obodrites, also spelled Abodrites (german: Abodriten), were a confederation of medieval West Slavs, West Slavic tribes within the territory of modern Mecklenburg and Holstein in norther ...
. Tenth-Century German Ottonian
The Ottonian dynasty (german: Ottonen) was a Saxons, Saxon dynasty of List of German monarchs, German monarchs (919–1024), named after three of its kings and Holy Roman Emperors named Otto, especially its first Emperor Otto I, Holy Roman Empe ...
capitularies
A capitulary (Medieval Latin ) was a series of legislative or administrative acts emanating from the Frankish court of the Merovingian and Carolingian dynasties, especially that of Charlemagne, the first emperor of the Romans in the west since the ...
demanded that royal fiscal estates maintain watertight, river-fordable wagons for purposes of war.
The Danish Army of Cnut the Great
Cnut (; ang, Cnut cyning; non, Knútr inn ríki ; or , no, Knut den mektige, sv, Knut den Store. died 12 November 1035), also known as Cnut the Great and Canute, was King of England from 1016, King of Denmark from 1018, and King of Norwa ...
completed a pontoon bridge across the Helge River
The river Helge or, in Swedish, Helgeån, alternatively Helge å, ''(lit. 'The Holy river)'' is a river which flows through Småland and Skåne in southern Sweden. The course of the river takes it through Kristianstad and out to the Hanöbuk ...
during the Battle of Helgeå
The Battle of Helgeå (Norwegian: ''Slaget ved Helgeå'', Swedish: ''Slaget vid Helgeå''), or Battle of the Holy River, was a naval engagement which took place in 1026 between joint Danish and English forces and a combined Norwegian and Swedish ...
in 1026. Crusader forces constructed a pontoon bridge across the Orontes to expedite resupply during the siege of Antioch
The siege of Antioch took place during the First Crusade in 1097 and 1098, on the crusaders' way to Jerusalem through Syria. Two sieges took place in succession. The first siege, by the crusaders against the city held by the Seljuk Empire, last ...
in December 1097. According to the chronicles, the earliest floating bridge across the Dnieper
}
The Dnieper () or Dnipro (); , ; . is one of the major transboundary rivers of Europe, rising in the Valdai Hills near Smolensk, Russia, before flowing through Belarus and Ukraine to the Black Sea. It is the longest river of Ukraine and B ...
was built in 1115. It was located near Vyshhorod
Vyshhorod ( uk, Ви́шгород) is a city in Kyiv Oblast (region) in central Ukraine, situated immediately north of Kyiv city, the national capital, and part of the Kyiv metropolitan area. It is on the right (western) bank of the Dnieper r ...
, Kiev
Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper, Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the List of European cities by populat ...
. Bohemian
Bohemian or Bohemians may refer to:
*Anything of or relating to Bohemia
Beer
* National Bohemian, a brand brewed by Pabst
* Bohemian, a brand of beer brewed by Molson Coors
Culture and arts
* Bohemianism, an unconventional lifestyle, origin ...
troops under the command of Frederick I, Holy Roman Emperor
Frederick Barbarossa (December 1122 – 10 June 1190), also known as Frederick I (german: link=no, Friedrich I, it, Federico I), was the Holy Roman Emperor from 1155 until his death 35 years later. He was elected King of Germany in Frankfurt on ...
crossed the Adige
The Adige (; german: Etsch ; vec, Àdexe ; rm, Adisch ; lld, Adesc; la, Athesis; grc, Ἄθεσις, Áthesis, or , ''Átagis'') is the second-longest river in Italy, after the Po. It rises near the Reschen Pass in the Vinschgau in the prov ...
in 1157 on a pontoon bridge built in advance by the people of Verona
Verona ( , ; vec, Verona or ) is a city on the Adige River in Veneto, Northern Italy, Italy, with 258,031 inhabitants. It is one of the seven provincial capitals of the region. It is the largest city Comune, municipality in the region and the ...
on orders of the German Emperor.
The French Royal Army of King Philip II of France
Philip II (21 August 1165 – 14 July 1223), byname Philip Augustus (french: Philippe Auguste), was King of France from 1180 to 1223. His predecessors had been known as kings of the Franks, but from 1190 onward, Philip became the first French ...
constructed a pontoon bridge across the Seine
)
, mouth_location = Le Havre/Honfleur
, mouth_coordinates =
, mouth_elevation =
, progression =
, river_system = Seine basin
, basin_size =
, tributaries_left = Yonne, Loing, Eure, Risle
, tributarie ...
to seize Les Andelys
Les Andelys (; Norman: ''Les Aundelys'') is a commune in the northern French department of Eure, in Normandy.
Geography
It lies on the Seine, about northeast of Évreux.
The commune is divided into two parts, Grand-Andely (located about from ...
from the English at the siege of Château Gaillard
The siege of Château Gaillard was a part of Philip II's campaign to conquer John, King of England's continental properties. The French king besieged Château Gaillard, a Norman fortress, for six months. The Anglo-Normans were beaten in the ...
in 1203. During the Fifth Crusade
The Fifth Crusade (1217–1221) was a campaign in a series of Crusades by Western Europeans to reacquire Jerusalem and the rest of the Holy Land by first conquering Egypt, ruled by the powerful Ayyubid sultanate, led by al-Adil, brother of Sala ...
, the Crusaders
The Crusades were a series of religious wars initiated, supported, and sometimes directed by the Latin Church in the medieval period. The best known of these Crusades are those to the Holy Land in the period between 1095 and 1291 that were in ...
built two pontoon bridges across the Nile
The Nile, , Bohairic , lg, Kiira , Nobiin language, Nobiin: Áman Dawū is a major north-flowing river in northeastern Africa. It flows into the Mediterranean Sea. The Nile is the longest river in Africa and has historically been considered ...
at the siege of Damietta (1218–1219)
The siege of Damietta of 1218–1219 was part of the Fifth Crusade in which the Crusaders attacked the Egyptian port city of Damietta. The city, under the control of the Ayyubid sultan al-Kamil, was besieged in 1218 and taken by the Crusaders in ...
, including one supported by 38 boats. On 27 May 1234, Crusader troops crossed the river Ochtum in Germany on a pontoon bridge during the fight against the Stedingers. Imperial Mongol troops constructed a pontoon bridge at the Battle of Mohi
The Battle of Mohi (11 April 1241), also known as Battle of the Sajó River''A Global Chronology of Conflict: From the Ancient World to the Modern Middle East'', Vol. I, ed. Spencer C. Tucker, (ABC-CLIO, 2010), 279; "Although Mongol losses in t ...
in 1241 to outflank the Hungarian army. The French army of King Louis IX of France
Louis IX (25 April 1214 – 25 August 1270), commonly known as Saint Louis or Louis the Saint, was King of France from 1226 to 1270, and the most illustrious of the Direct Capetians. He was crowned in Reims at the age of 12, following the ...
crossed the Charente
Charente (; Saintongese: ''Chérente''; oc, Charanta ) is a department in the administrative region of Nouvelle-Aquitaine, south western France. It is named after the river Charente, the most important and longest river in the department, an ...
on multiple pontoon bridges during the Battle of Taillebourg
The Battle of Taillebourg, a major medieval battle fought in July 1242, was the decisive engagement of the Saintonge War. It pitted a French Capetian army under the command of King Louis IX, also known as Saint Louis, and his younger brother Alp ...
on 21 July 1242. Louis IX had a pontoon bridge built across the Nile to provide unimpeded access to troops and supplies in early March 1250 during the Seventh Crusade.
A Florentine army erected a pontoon bridge across the Arno
The Arno is a river in the Tuscany region of Italy. It is the most important river of central Italy after the Tiber.
Source and route
The river originates on Monte Falterona in the Casentino area of the Apennines, and initially takes a s ...
during the siege of Pisa
Pisa ( , or ) is a city and ''comune'' in Tuscany, central Italy, straddling the Arno just before it empties into the Ligurian Sea. It is the capital city of the Province of Pisa. Although Pisa is known worldwide for its leaning tower, the cit ...
in 1406. The English army of John Talbot, 1st Earl of Shrewsbury
John is a common English name and surname:
* John (given name)
* John (surname)
John may also refer to:
New Testament
Works
* Gospel of John, a title often shortened to John
* First Epistle of John, often shortened to 1 John
* Second E ...
crossed the Oise
Oise ( ; ; pcd, Oése) is a department in the north of France. It is named after the river Oise. Inhabitants of the department are called ''Oisiens'' () or ''Isariens'', after the Latin name for the river, Isara. It had a population of 829,419 ...
across a pontoon bridge of portable leather vessels in 1441. Ottoman engineers built a pontoon bridge across the Golden Horn
The Golden Horn ( tr, Altın Boynuz or ''Haliç''; grc, Χρυσόκερας, ''Chrysókeras''; la, Sinus Ceratinus) is a major urban waterway and the primary inlet of the Bosphorus in Istanbul, Turkey. As a natural estuary that connects with t ...
during the siege of Constantinople (1453)
The Fall of Constantinople, also known as the Conquest of Constantinople, was the capture of the capital of the Byzantine Empire by the Ottoman Empire. The city fell on 29 May 1453 as part of the culmination of a 53-day siege which had begun o ...
, using over a thousand barrels. The bridge was strong enough to support carts. The Ottoman Army constructed a pontoon bridge during the siege of Rhodes (1480). Venetian pioneers built a floating bridge across the Adige at the Battle of Calliano (1487)
The Battle of Calliano was the decisive battle in the conflict between the Republic of Venice and Sigismund of Habsburg also known as the War of Rovereto. It was decisive to stop the Venetian advances into the Tyrol.
The Venetian invasion forc ...
.
Early modern period
Before the Battle of Worcester
The Battle of Worcester took place on 3 September 1651 in and around the city of Worcester, England and was the last major battle of the 1639 to 1653 Wars of the Three Kingdoms. A Parliamentarian army of around 28,000 under Oliver Cromwell def ...
, the final battle of the English Civil War
The English Civil War (1642–1651) was a series of civil wars and political machinations between Parliamentarians (" Roundheads") and Royalists led by Charles I ("Cavaliers"), mainly over the manner of England's governance and issues of re ...
, on 30 August 1651,Oliver Cromwell
Oliver Cromwell (25 April 15993 September 1658) was an English politician and military officer who is widely regarded as one of the most important statesmen in English history. He came to prominence during the 1639 to 1651 Wars of the Three Ki ...
delayed the start of the battle to give time for two pontoon bridges to be constructed, one over the River Severn
, name_etymology =
, image = SevernFromCastleCB.JPG
, image_size = 288
, image_caption = The river seen from Shrewsbury Castle
, map = RiverSevernMap.jpg
, map_size = 288
, map_c ...
and the other over the River Teme
The River Teme (pronounced ; cy, Afon Tefeidiad) rises in Mid Wales, south of Newtown, and flows southeast roughly forming the border between England and Wales for several miles through Knighton before entering England in the vicinity of B ...
, close to their confluence. This allowed Cromwell to move his troops West of the Severn during the action on 3 September 1651 and was crucial to the victory by his New Model Army
The New Model Army was a standing army formed in 1645 by the Parliamentarians during the First English Civil War, then disbanded after the Stuart Restoration in 1660. It differed from other armies employed in the 1639 to 1653 Wars of the Th ...
.
The Spanish Army constructed a pontoon bridge at the Battle of Río Bueno
A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force ...
in 1654. However, as the bridge broke apart it all ended in a sound defeat of the Spanish by local Mapuche-Huilliche forces.
French general Jean Lannes
Jean Lannes, 1st Duke of Montebello, Prince of Siewierz (10 April 1769 – 31 May 1809), was a French military commander and a Marshal of the Empire who served during both the French Revolutionary and Napoleonic Wars. He was one of Napoleon's ...
's troops built a pontoon bridge to cross the Po river
The Po ( , ; la, Padus or ; Ligurian language (ancient), Ancient Ligurian: or ) is the longest river in Italy. It flows eastward across northern Italy starting from the Cottian Alps. The river's length is either or , if the Maira (river), Mair ...
prior to the Battle of Montebello (1800)
The Battle of Montebello was fought on 9 June 1800 near Montebello in Lombardy. During the lead-up to the Battle of Marengo, the vanguard of the French army in Italy engaged and defeated an Austrian force in a "glorious victory".
Backgr ...
. Napoleon
Napoleon Bonaparte ; it, Napoleone Bonaparte, ; co, Napulione Buonaparte. (born Napoleone Buonaparte; 15 August 1769 – 5 May 1821), later known by his regnal name Napoleon I, was a French military commander and political leader who ...
's Grande Armée
''La Grande Armée'' (; ) was the main military component of the French Imperial Army commanded by Emperor Napoleon Bonaparte during the Napoleonic Wars. From 1804 to 1808, it won a series of military victories that allowed the French Empi ...
made extensive use of pontoon bridges at the battles of Aspern-Essling and Wagram
Deutsch-Wagram (literally "German Wagram", ), often shortened to Wagram, is a village in the Gänserndorf District, in the states of Austria, state of Lower Austria, Austria. It is in the Morava (river), Marchfeld Basin, close to the Vienna city ...
under the supervision of General Henri Gatien Bertrand
Henri-Gatien Bertrand (28 March 1773 – 31 January 1844) was a French general who served during the French Revolutionary Wars and the Napoleonic Wars. Under the Empire he was the third and last Grand marshal of the palace, the head of the M ...
. General Jean Baptiste Eblé
Jean Baptiste Eblé (21 December 1758 – 31 December 1812) was a French General, Engineer and Artilleryman during the Napoleonic Wars. He is credited with saving Napoleon's Grand Army from complete destruction in 1812.
Biography
Eblé was born ...
's engineers erected four pontoon bridges in a single night across the Dnieper during the Battle of Smolensk (1812). Working in cold water, Eblé's Dutch engineers constructed a 100-meter-long pontoon bridge during the Battle of Berezina
The Battle of (the) Berezina (or Beresina) took place from 26 to 29 November 1812, between Napoleon's Grande Armée and the Imperial Russian Army under Field Marshal Wittgenstein and Admiral Chichagov. Napoleon was retreating back toward Pola ...
to allow the Grande Armée to escape to safety. During the Peninsular War
The Peninsular War (1807–1814) was the military conflict fought in the Iberian Peninsula by Spain, Portugal, and the United Kingdom against the invading and occupying forces of the First French Empire during the Napoleonic Wars. In Spain ...
the British army transported "tin pontoons" that were lightweight and could be quickly turned into a floating bridge.
Lt Col Charles Pasley
General Sir Charles William Pasley (8 September 1780 – 19 April 1861) was a British soldier and military engineer who wrote the defining text on the role of the post-American Revolution British Empire: ''An Essay on the Military Policy and Ins ...
of the Royal School of Military Engineering
The Royal School of Military Engineering (RSME) Group provides a wide range of training for the British Army and Defence. This includes; Combat Engineers, Carpenters, Chartered Engineers, Musicians, Band Masters, Sniffer Dogs, Veterinary Techni ...
at Chatham England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...
developed a new form of pontoon which was adopted in 1817 by the British Army. Each pontoon was split into two halves, and the two pointed ends could be connected together in locations with tidal flow. Each half was enclosed, reducing the risk of swamping, and the sections bore multiple lashing points.
The "Palsey pontoon" lasted until 1836 when it was replaced by the "Blanshard pontoon" which comprised tin cylinders 3 feet wide and 22 feet long, placed 11 feet apart, making the pontoon very buoyant.[ The pontoon was tested with the Palsey pontoon on the Medway.
An alternative proposed by Charles Pasley comprised two copper canoes, each 2 foot 8 inches wide and 22 foot long and coming in two sections which were fastened side by side to make a double canoe raft. Copper was used in preference to fast-corroding tin. Lashed at 10 foot centres, these were good for cavalry, infantry and light guns; lashed at 5 foot centres, heavy cannon could cross. The canoes could also be lashed together to form rafts. One cart pulled by two horse carried two half canoes and stores.
A comparison of pontoons used by each nations army shows that almost all were open boats coming in one, two or even three pieces, mainly wood, some with canvas and rubber protection. Belgium used an iron boat; the United States used cylinders split into three.][
In 1862 the Union forces commanded by ]Major General
Major general (abbreviated MG, maj. gen. and similar) is a military rank used in many countries. It is derived from the older rank of sergeant major general. The disappearance of the "sergeant" in the title explains the apparent confusion of a ...
Ambrose Burnside
Ambrose Everett Burnside (May 23, 1824 – September 13, 1881) was an American army officer and politician who became a senior Union general in the Civil War and three times Governor of Rhode Island, as well as being a successful inventor ...
were stuck on the wrong side of the Rappahannock River
The Rappahannock River is a river in eastern Virginia, in the United States, approximately in length.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed April 1, 2011 It traverses the entir ...
at the Battle of Fredericksburg
The Battle of Fredericksburg was fought December 11–15, 1862, in and around Fredericksburg, Virginia, in the Eastern Theater of the American Civil War. The combat, between the Union Army of the Potomac commanded by Maj. Gen. Ambrose Burnsi ...
for lack of the arrival of the pontoon train resulting in severe losses. The report of this disaster resulted in Britain forming and training a Pontoon Troop of Engineers.[
During the ]American Civil War
The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...
various forms of pontoon bridges were tried and discarded. Wooden pontoons and India rubber bag pontoons shaped like a torpedo proved impractical until the development of cotton-canvas covered pontoons, which required more maintenance but were lightweight and easier to work with and transport.[ From 1864 a lightweight design known as ]Cumberland Pontoons Cumberland pontoons were folding pontoon bridges developed during the American Civil War to facilitate the movement of Union forces across the rivers of the Mid-South as the Federal forces advanced southward through Tennessee and Georgia.
Early p ...
, a folding boat system, were widely used during the Atlanta Campaign to transport soldiers and artillery
Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during siege ...
across rivers in the South
South is one of the cardinal directions or Points of the compass, compass points. The direction is the opposite of north and is perpendicular to both east and west.
Etymology
The word ''south'' comes from Old English ''sūþ'', from earlier Pro ...
.
In 1872 at a military review before Queen Victoria
Victoria (Alexandrina Victoria; 24 May 1819 – 22 January 1901) was Queen of the United Kingdom of Great Britain and Ireland from 20 June 1837 until Death and state funeral of Queen Victoria, her death in 1901. Her reign of 63 years and 21 ...
, a pontoon bridge was thrown across the River Thames
The River Thames ( ), known alternatively in parts as the The Isis, River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the Longest rivers of the United Kingdom, se ...
at Windsor, Berkshire
Windsor is a historic market town and unparished area in the Royal Borough of Windsor and Maidenhead in Berkshire, England. It is the site of Windsor Castle, one of the official residences of the British monarch. The town is situated west of ...
, where the river was wide. The bridge, comprising 15 pontoons held by 14 anchors, was completed in 22 minutes and then used to move five battalions of troops across the river. It was removed in 34 minutes the next day.[
At ]Prairie du Chien, Wisconsin
Prairie du Chien () is a city in and the county seat of Crawford County, Wisconsin, United States. The population was 5,506 at the 2020 census. Its ZIP Code is 53821.
Often referred to as Wisconsin's second oldest city, Prairie du Chien was esta ...
, the Pile-Pontoon Railroad Bridge was constructed in 1874 over the Mississippi River
The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it f ...
to carry a railroad track connecting that city with Marquette, Iowa
Marquette is a city in Clayton County, Iowa, United States. The population was 429 at the time of the 2020 census, up from 421 in 2000. The city, which is located on the Mississippi River, is named after Jesuit missionary Jacques Marquette, who ...
. Because the river level could vary by as much as 22 feet, the track was laid on an adjustable platform above the pontoons. This unique structure remained in use until the railroad was abandoned in 1961, when it was removed.
The British Blanshard Pontoon Blanshard may refer to:
Places:
* Blanshard, Manitoba, rural municipality in the province of Manitoba in Western Canada
* Blanshard Peak, distinctive rock pinnacle in Golden Ears Provincial Park
* Blanshard Street, arterial road in Victoria, Britis ...
stayed in British use until the late 1870s, when it was replaced by the "Blood
Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood in the c ...
Pontoon". The Blood Pontoon returned to the open boat system, which enabled use as boats when not needed as pontoons. Side carrying handles helped transportation.[ The new pontoon proved strong enough to support loaded elephants and siege guns as well as military ]traction engine
A traction engine is a steam engine, steam-powered tractor used to move heavy loads on roads, plough ground or to provide power at a chosen location. The name derives from the Latin ''tractus'', meaning 'drawn', since the prime function of any t ...
s.
Early 20th century
The British Blood Pontoon MkII, which took the original and cut it into two halves, was still in use with the British Army in 1924.[
The First World War saw developments on "trestles" to form the link between a river bank and the pontoon bridge. Some infantry bridges in WW1 used any material available, including petrol cans as flotation devices.][
The ]Kapok Assault Bridge
Kapok may refer to:
*Kapok tree, several species
*Kapok fibre, made from ''Ceiba pentandra
''Ceiba pentandra'' is a tropical tree of the order Malvales and the family Malvaceae (previously emplaced in the family Bombacaceae), native to Mexico, ...
for infantry was developed for the British Army, using kapok filled canvas float and timber foot walks. America created their own version.[
]Folding Boat Equipment
The Folding Boat Equipment, abbreviated as FBE, is a light pontoon bridging equipment which was in use by the British and its colonial armies during the 20th century. The equipment was introduced in 1928 and was the standard light bridge used for ...
was developed in 1928 and went through several versions until it was used in WW2 to complement the Bailey Pontoon
A Bailey bridge is a type of portable, pre-fabricated, truss bridge. It was developed in 1940–1941 by the British for military use during the Second World War and saw extensive use by British, Canadian and American military engineering units. ...
. It had a continuous canvas hinge and could fold flat for storage and transportation. When assembled it could carry 15 men and with two boats and some additional toppings it could transport a 3-ton truck. Further upgrades during WW2 resulted in it moving to a Class 9 bridge.[
]
World War II
Pontoon bridges were used extensively during World War II, mainly in the European Theater of Operations
The European Theater of Operations, United States Army (ETOUSA) was a Theater of Operations responsible for directing United States Army operations throughout the European theatre of World War II, from 1942 to 1945. It commanded Army Ground For ...
. The United States was the principal user, with Britain next.
United States
In the United States, combat engineer
A combat engineer (also called pioneer or sapper) is a type of soldier who performs military engineering tasks in support of land forces combat operations. Combat engineers perform a variety of military engineering, tunnel and mine warfare ta ...
s were responsible for bridge deployment and construction. These were formed principally into Engineer Combat Battalions, which had a wide range of duties beyond bridging, and specialized units, including Light Ponton Bridge Companies, Heavy Ponton Bridge Battalions, and Engineer Treadway Bridge Companies; any of these could be organically attached to infantry units or directly at the divisional, corps
Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was first named as such in 1805. The size of a corps varies great ...
, or army
An army (from Old French ''armee'', itself derived from the Latin verb ''armāre'', meaning "to arm", and related to the Latin noun ''arma'', meaning "arms" or "weapons"), ground force or land force is a fighting force that fights primarily on ...
level.
American Engineers built three types of floating bridges: M1938 infantry footbridges, M1938 ponton bridges, and M1940 treadway bridges, with numerous subvariants of each. These were designed to carry troops and vehicles of varying weight, using either an inflatable pneumatic ponton or a solid aluminum-alloy ponton bridge. Both types of bridges were supported by pontons (known today as "pontoons") fitted with a deck built of balk, which were square, hollow aluminum beams.
;American Light Ponton Bridge Company
An Engineer Light Ponton Company consisted of three platoons: two bridge platoons, each equipped with one unit of M3 pneumatic bridge, and a lightly equipped platoon which had one unit of footbridge and equipment for ferrying. The bridge platoons were equipped with the M3 pneumatic bridge, which was constructed of heavy inflatable pneumatic floats and could handle up to ; this was suitable for all normal infantry division loads without reinforcement, greater with.
;American Heavy Ponton Bridge Battalion
A Heavy Ponton Bridge Battalion was provided with equipage required to provide stream crossing for heavy military vehicles that could not be supported by a light ponton bridge. The Battalion had two lettered companies of two bridge platoons each. Each platoon was equipped with one unit of heavy ponton equipage. The battalion was an organic unit of army and higher echelons. The M1940 could carry up to .[ The M1 Treadway Bridge could support up to . The roadway, made of steel, could carry up to , while the center section made of thick plywood could carry up to . The wider, heavier tanks used the outside steel treadway while the narrower, lighter jeeps and trucks drove across the bridge with one wheel in the steel treadway and the other on the plywood.
;American Engineer Treadway Bridge Company
An Engineer Treadway Bridge Company consisted of company headquarters and two bridge platoons. It was an organic unit of the armored force, and normally was attached to an Armored Engineer Battalion. Each bridge platoon transported one unit of steel treadway bridge equipage for construction of ferries and bridges in river-crossing operations of the armored division.][ Stream-crossing equipment included utility powerboats, pneumatic floats, and two units of steel treadway bridge equipment, each of which allowed the engineers to build a floating bridge about in length.][
;Materials and equipment
;; Pneumatic ponton
The designed a self-contained bridge transportation and erection system. The Brockway model B666 6x6 truck chassis (also built under license by Corbitt and ]White
White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...
) was used to transport both the bridge's steel and rubber components. A single Brockway truck could carry material for of bridge, including two pontons, two steel saddles that were attached to the pontons, and four treadway sections. Each treadway was long with high guardrails on either side of the wide track.[
The truck was mounted with a hydraulic crane that was used to unload the wide steel treadways. A custom designed twin boom arm was attached to rear of the truck bed and helped unroll and place the heavy inflatable rubber pontoons upon which the bridge was laid. The wheelbase chassis included a front winch and extra-large air-brake tanks that also served to inflate the rubber pontoons before they were placed in the water.
A pneumatic float was made of rubberized fabric separated by bulkheads into 12 airtight compartments and inflated with air. The pneumatic float consisted of an outer perimeter tube, a floor, and a removable center tube. The capacity float was wide, long, deep.
;; Solid ponton
Solid aluminum-alloy pontons were used in place of pneumatic floats to support heavier bridges and loads.][ They were also pressed into service for lighter loads as needed.
;; Treadway
A treadway bridge was a multi-section, prefabricated floating steel bridge supported by pontoons carrying two metal tracks (or "tread ways") forming a roadway. Depending on its weight class, the treadway bridge was supported either by heavy inflatable pneumatic pontons or by aluminum-alloy half-pontons. The aluminum half-pontons were long overall, wide at the gunwales, and deep except at the bow where the gunwale was raised. The gunwales were center-to-center. At ]freeboard
In sailing and boating, a vessel's freeboard
is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. In commercial vessels, the latter criterion measured relativ ...
, the half-ponton has a displacement of . The sides and bow of the half-ponton sloped inward, permitting two or more to be nested for transporting or storing.
A treadway bridge could be built of floating spans or fixed spans. An M2 treadway bridge was designed to carry artillery, heavy duty trucks, and medium tanks up to . This could be of any length, and was what was used over major river obstacles such as the Rhine and Moselle. Doctrine stated that it would take 5 1/2 hours to place a 362-foot section of M2 treadway during daylight and 7 1/2 hours at night. Pergrin says that in practise 50 ft/hour of treadway construction was expected, which is a little slower than the speed specified by doctrine.
By 1943, combat engineers faced the need for bridges to bear weights of 35 tons or more. To increase weight bearing capacity, they used bigger floats to add buoyancy. This overcame the capacity limitation, but the larger floats were both more difficult to transport to the crossing site and requiring more and larger trucks in the divisional and corps trains.
Britain
Donald Bailey invented the Bailey bridge
A Bailey bridge is a type of portable, pre-fabricated, truss bridge. It was developed in 1940–1941 by the British for military use during the Second World War and saw extensive use by British, Canadian and American military engineering units. A ...
, which was made up of modular, pre-fabricated steel trusses capable of carrying up to over spans up to . While typically constructed point-to-point over pier
image:Brighton Pier, Brighton, East Sussex, England-2Oct2011 (1).jpg, Seaside pleasure pier in Brighton, England. The first seaside piers were built in England in the early 19th century.
A pier is a raised structure that rises above a body of ...
s, they could be supported by pontoons as well.[
The Bailey bridge was used for the first time in 1942. The first version put into service was a Bailey Pontoon and Raft with a single-single Bailey bay supported on two pontoons. A key feature of the Bailey Pontoon was the use of a single span from the bank to the bridge level which eliminated the need for bridge trestles.][
For lighter vehicle bridges the ]Folding Boat Equipment
The Folding Boat Equipment, abbreviated as FBE, is a light pontoon bridging equipment which was in use by the British and its colonial armies during the 20th century. The equipment was introduced in 1928 and was the standard light bridge used for ...
could be used and the Kapok Assault Bridge
Kapok may refer to:
*Kapok tree, several species
*Kapok fibre, made from ''Ceiba pentandra
''Ceiba pentandra'' is a tropical tree of the order Malvales and the family Malvaceae (previously emplaced in the family Bombacaceae), native to Mexico, ...
was available for infantry.[
An open sea type of pontoon, another British war time invention, known by their code names, the Mulberry harbours floated across the English Channel to provide harbours for the June 1944 Allied invasion of Normandy. The dock piers were code named "Whale". These piers were the floating roadways that connected the "Spud" pier heads to the land. These pier heads or landing wharves, at which ships were unloaded each consisted of a pontoon with four legs that rested on the sea bed to anchor the pontoon, yet allowed it to float up and down freely with the tide. "Beetles" were pontoons that supported the "Whale" piers. They were moored in position using wires attached to "Kite" anchors which were also designed by ]Allan Beckett
Allan Harry Beckett MBE (b. 4 March 1914, East Ham, London Borough of Newham, United Kingdom, d. 19 June 2005, Farnborough, London) was a civil engineer whose design for the 'Whale' floating roadway was crucial to the success of the Mulberr ...
. These anchors had a high holding power as was demonstrated in D+13 Normandy storm where the British Mulberry survived most of the storm damage whereas the American Mulberry, which only had 20% of its Kite Anchors deployed, was destroyed.
Gallery
File:Heavy and pneumatic pontons loaded for transport to Remagen.jpg, Smaller, lighter pneumatic pontons piggy-backed upon large aluminum heavy pontons for combined transport
File:3rd Armored Division vehicles cross the Seine River.jpg, Pneumatic pontons support a treadway bridge
File:Inflatable pontons headed for the Danube in Germany, April 1945.jpg, Pneumatic pontons being carried by heavy 6×6 transports
File:Rhine River pontoon bridge wwii.png, Heavy ponton bridge supported by large aluminum pontons
File:Engineers bridging the wide but placid Po.jpg, Treadway bridge atop pneumatic pontons
File:Infantry support bridge over Saar River erected by 289th Engineers at Volklingen.jpg, Infantry support bridge supported by light aluminum pontoons
File:Bridge-construction-korea.jpg, Treadway being installed using truck mounted crane
File:Footbridge on the Roer.jpg, Infantry footbridge supported by pontons
File:Infantry support bridge built by 549th Light Ponton Company.jpg, Treadway style infantry support bridge built on light aluminum pontons
File:M2 Treadway Bridge on the Rhine at Boppard near Koblenz, Germany, March 1945.jpg, M2 Treadway bridge supported by pneumatic floats
File:The British Army in Normandy 1944 B9743.jpg, British troops crossing the Seine at Vernon, France on 28 August 1944
File:Pontonbruecke.jpg , Heavy ponton bridge
File:Bailey Bridge over the River Maas.jpg, Bailey bridge supported by pontoons
File:Bundesarchiv Bild 183-L20392, Kiew, Pioniere errichten Pontonbrücke.jpg, German pioneer
Pioneer commonly refers to a settler who migrates to previously uninhabited or sparsely inhabited land.
In the United States pioneer commonly refers to an American pioneer, a person in American history who migrated west to join in settling and de ...
s construct a pontoon bridge across the Dnieper
}
The Dnieper () or Dnipro (); , ; . is one of the major transboundary rivers of Europe, rising in the Valdai Hills near Smolensk, Russia, before flowing through Belarus and Ukraine to the Black Sea. It is the longest river of Ukraine and B ...
during the battle of Kiev, September 1941
File:Bundesarchiv B 145 Bild-F016198-0033, Rumänien, Brückenbau über den Pruth.jpg, German engineers building a pontoon bridge across the Prut River during the advance towards Uman
Uman ( uk, Умань, ; pl, Humań; yi, אומאַן) is a city located in Cherkasy Oblast in central Ukraine, to the east of Vinnytsia. Located in the historical region of the eastern Podolia, the city rests on the banks of the Umanka River ...
, July 1941
Modern military uses
Pontoon bridges were extensively used by both armies and civilians throughout the latter half of the 20th century.
From the Post-War period into the early 1980s the U.S. Army and its NATO and other allies employed three main types of pontoon bridge/raft. The M4 bridge featured a lightweight aluminum balk deck supported by rigid aluminum hull pontoons. The M4T6 bridge used the same aluminum balk deck of the M4, but supported instead by inflatable rubber pontoons. The Class 60 bridge consisted of a more robust steel girder and grid deck supported by inflatable rubber pontoons. All three pontoon bridge types were cumbersome to transport and deploy, and slow to assemble, encouraging the development of an easier to transport, deploy and assemble floating bridge.
Amphibious float bridges
Several alternatives featured a self-propelled amphibious integrated transporter, floating pontoon, bridge deck section that could be delivered and assembled in the water under its own power, linking as many units as required to bridge a gap or form a raft ferry.
An early example was the Engin de Franchissement de l’Avant EFA (mobile bridge)
The EFA or Engin de Franchissement de l'Avant (forward crossing apparatus) is a field-deployable river crossing vehicle, used by combat engineers in the French Army. Unlike a bridge layer, which transports a bridge that is deployed off of the hos ...
amphibious forward crossing apparatus conceived by French General Jean Gillois in 1955. The system consisted of a wheeled amphibious truck equipped with inflatable outboard flotation sponsons and a rotating vehicle bridge deck section. The system was developed by the West German firm Eisenwerke-Kaiserslauter (EWK) and entered production by the French-German consortium Pontesa. The EFA system was first deployed by the French Army in 1965, and subsequently by the West German
West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 O ...
Bundeswehr
The ''Bundeswehr'' (, meaning literally: ''Federal Defence'') is the armed forces of the Federal Republic of Germany. The ''Bundeswehr'' is divided into a military part (armed forces or ''Streitkräfte'') and a civil part, the military part con ...
, British Army, and on a very limited basis by the U.S. Army, where it was referred to as Amphibious River Crossing Equipment (ARCE). Production ended in 1973. The EFA was used in combat by the Israel Defense Forces
The Israel Defense Forces (IDF; he, צְבָא הַהֲגָנָה לְיִשְׂרָאֵל , ), alternatively referred to by the Hebrew-language acronym (), is the national military of the Israel, State of Israel. It consists of three servic ...
(IDF), which employed former U.S. Army equipment to cross the Suez Canal in their counterattack into Egypt during the Yom Kippur War
The Yom Kippur War, also known as the Ramadan War, the October War, the 1973 Arab–Israeli War, or the Fourth Arab–Israeli War, was an armed conflict fought from October 6 to 25, 1973 between Israel and a coalition of Arab states led by Egy ...
of 1973.
EWK further developed the EFA system into the M2 "Alligator" Amphibious Bridging Vehicle equipped with fold-out aluminum flotation pontoons, which was produced from 1967 to 1970 and sold to the West German, British and Singapore militaries. The M2 was followed by the revised M3 version, entering service in 1996 with Germany, Britain, Taiwan and Singapore. The M3 was used in combat by British Forces during the Iraq War
{{Infobox military conflict
, conflict = Iraq War {{Nobold, {{lang, ar, حرب العراق (Arabic) {{Nobold, {{lang, ku, شەڕی عێراق (Kurdish languages, Kurdish)
, partof = the Iraq conflict (2003–present), I ...
. More recently, Turkey has developed a similar system in the FNSS Samur
Samur or SYHK (short for Seyyar Yüzücü Hücum Köprüsü) is a Turkish amphibious armoured vehicle-launched bridge. Samur is the Turkish word for sable.
The equipment was developed and produced for the Turkish Armed Forces (TSK) by the Tur ...
wheeled amphibious assault bridge, while the Russian PMM-2 and Chinese GZM003 armoured amphibious assault bridge ride on tracks.
A similar amphibious system, the Mobile Floating Assault Bridge-Ferry (MFAB-F) was developed in the U.S. by Chrysler between 1959 and 1962. As with the French EFA, the MFAB-F consisted of an amphibious truck with a rotating bridge deck section, but there were no outboard flotation sponsons. The MFAB-F was first deployed by the U.S. Army in 1964 and later by Belgium. An improved version was produced by FMC from 1970 to 1976. The MFAB-F remained in service into the early 1980s before being replaced by a simpler continuous pontoon or "ribbon bridge" system.
Ribbon float bridges
In the early Cold War
The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because the ...
period the Soviet Red Army
The Workers' and Peasants' Red Army (Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist Republic and, afte ...
began development of a new kind of continuous pontoon bridge made up of short folding sections or bays that could be transported and deployed rapidly, automatically unfold in the water, and quickly be assembled into a floating bridge of variable length. Known as the PMP Folding Float Bridge, it was first deployed in 1962 and subsequently adopted by Warsaw Pact countries and other states employing Soviet military equipment. The PMP proved its viability in combat when it was used by Egyptian forces to cross the Suez Canal
The Suez Canal ( arz, قَنَاةُ ٱلسُّوَيْسِ, ') is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia. The long canal is a popular ...
in 1973. Operation Badr, which opened the Yom Kippur War
The Yom Kippur War, also known as the Ramadan War, the October War, the 1973 Arab–Israeli War, or the Fourth Arab–Israeli War, was an armed conflict fought from October 6 to 25, 1973 between Israel and a coalition of Arab states led by Egy ...
between Egypt
Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediter ...
and Israel
Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...
, involved the erection of at least 10 pontoon bridges to cross the Canal.
Beginning in 1969 the U.S. Army Mobility Equipment Research and Development Command (MERADCOM) reverse-engineered the Russian PMP design to develop the improved float bridge (IFB), later known as the standard ribbon bridge (SRB). The IFB/SRB was type classified in 1972 and first deployed in service in 1976. It was very similar to the PMP but was constructed of lightweight aluminum instead of heavier steel.
In 1977 the West German
West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 O ...
Bundeswehr
The ''Bundeswehr'' (, meaning literally: ''Federal Defence'') is the armed forces of the Federal Republic of Germany. The ''Bundeswehr'' is divided into a military part (armed forces or ''Streitkräfte'') and a civil part, the military part con ...
decided to adopt the SRB with some modifications and improvements, entering service in 1979 as the Faltschwimmbrücke, or Foldable Floating Bridge (FSB). Work on designing an improved version of the U.S. SRB incorporating features of the German FSB began in the 1990s, with first deployment by the U.S. Army in the early 2000s as the improved ribbon bridge (IRB).
In addition to the U.S. and Germany, the IFB/SRB/FSB/IRB has been adopted by the Armed Forces of Australia, Brazil, Canada, the Netherlands, Portugal, South Korea and Sweden, among others.
Yugoslav wars
During the Yugoslav wars
The Yugoslav Wars were a series of separate but related#Naimark, Naimark (2003), p. xvii. ethnic conflicts, wars of independence, and Insurgency, insurgencies that took place in the Socialist Federal Republic of Yugoslavia, SFR Yugoslavia from ...
of the 1990s, the Maslenica Bridge was destroyed and a short pontoon bridge was built by Croatia
, image_flag = Flag of Croatia.svg
, image_coat = Coat of arms of Croatia.svg
, anthem = "Lijepa naša domovino"("Our Beautiful Homeland")
, image_map =
, map_caption =
, capit ...
n civilian and military authorities in July 1993 over a narrow sea outlet in the town of Maslenica
Maslenica is a village in the municipality of Jasenice in Zadar County, Dalmatia, Croatia. It is situated in . Waters are quite clear due to the Zrmanja river which flows into this gulf.
History
The village was built 1000 years ago.
Masleni ...
, after the territory was retaken from Serbian Krajina
The Republic of Serbian Krajina or Serb Republic of Krajina ( sh, Република Српска Крајина, italics=no / or РСК / ''RSK'', ), known as the Serbian Krajina ( / ) or simply Krajina, was a self-proclaimed Serb proto-state, ...
. Between 1993 and 1995 the pontoon served as one of the two operational land links toward Dalmatia
Dalmatia (; hr, Dalmacija ; it, Dalmazia; see #Name, names in other languages) is one of the four historical region, historical regions of Croatia, alongside Croatia proper, Slavonia, and Istria. Dalmatia is a narrow belt of the east shore of ...
and Croat- and Bosnian Muslim
The Bosniaks ( bs, Bošnjaci, Cyrillic: Бошњаци, ; , ) are a South Slavic ethnic group native to the Southeast European historical region of Bosnia, which is today part of Bosnia and Herzegovina, who share a common Bosnian ancestry, cu ...
-held areas of Bosnia-Herzegovina
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and Pars pro toto#Geography, often known informally as Bosnia, is a country at the crossroads of Southern Europe, south and southeast Euro ...
that did not go through Serb-held territory.
In 1995 the 502nd and 38th Engineer Companies of the U.S. Army's 130th Engineer Brigade, and the 586th Engineer Company from Ft. Benning GA, operating as part of IFOR
The Implementation Force (IFOR) was a NATO-led multinational peace enforcement force in Bosnia and Herzegovina under a one-year mandate from 20 December 1995 to 20 December 1996 under the codename ''Operation Joint Endeavour''.
Background
NATO ...
assembled a standard ribbon bridge under adverse weather conditions across the Sava
The Sava (; , ; sr-cyr, Сава, hu, Száva) is a river in Central and Southeast Europe, a right-bank and the longest tributary of the Danube. It flows through Slovenia, Croatia and along its border with Bosnia and Herzegovina, and finally th ...
River near Županja
Županja (, hu, Zsupanya, german: Schaupanie) is a town in eastern Slavonia, Croatia, located 254 km east of Zagreb. It is administratively part of the Vukovar-Syrmia County. It is inhabited by 12,090 people (2011).
Županja lies on the Sa ...
(between Croatia
, image_flag = Flag of Croatia.svg
, image_coat = Coat of arms of Croatia.svg
, anthem = "Lijepa naša domovino"("Our Beautiful Homeland")
, image_map =
, map_caption =
, capit ...
and Bosnia
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and He ...
), with a total length of . It was dismantled in 1996.
Iran–Iraq war
Numerous pontoon bridges were constructed by the Iranians and Iraqis to cross the various rivers and marshes alongside the Iraqi border. Notable instances include one constructed over the Karkheh river
The Karkheh or Karkhen کرخه (perhaps the river known as the Gihon—one of the four rivers of Eden/Paradise to the Bible and as the Choaspes in ancient times; also called Eulæus; Hebrew: אולי Ulai) is a river in Khūzestān Province, I ...
to ambush Iraqi Armor during Operation Nasr
Operation Nasr, fought in early January 1981, was a major battle of the Iran–Iraq War. It was the biggest tank battle of the Iran–Iraq War.
Three Iranian armored regiments advanced towards Iraqi forces that had invaded Iranian territory bet ...
, and another where they crossed certain marshes during Operation Dawn 8
The First Battle of al-Faw was a battle of the Iran–Iraq War, fought on the al-Faw peninsula between 10 February and 10 March 1986. The Iranian operation is considered to be one of Iran's greatest achievements in the Iran–Iraq War. The Ir ...
. They were extremely prominent due to their use in allowing for tanks and transports to cross rivers.
Invasion of Iraq
The United States Army's 299th Multi-role Bridge Company, USAR deployed a standard ribbon bridge across the Euphrates river
The Euphrates () is the longest and one of the most historically important rivers of Western Asia. Tigris–Euphrates river system, Together with the Tigris, it is one of the two defining rivers of Mesopotamia ( ''the land between the rivers'') ...
at Objective Peach near Al Musayib on the night of 3 April 2003. The 185-meter bridge was built to support retrograde operations because of the heavy-armor traffic crossing a partially destroyed adjacent highway
A highway is any public or private road or other public way on land. It is used for major roads, but also includes other public roads and public tracks. In some areas of the United States, it is used as an equivalent term to controlled-access ...
span.
"By dawn on 4 April 2003, the 299th Engineer Company had emplaced a 185-meter long Assault Float Bridge—the first time in history that a bridge of its type was built in combat." This took place during the 2003 invasion of Iraq
The 2003 invasion of Iraq was a United States-led invasion of the Republic of Iraq and the first stage of the Iraq War. The invasion phase began on 19 March 2003 (air) and 20 March 2003 (ground) and lasted just over one month, including 26 ...
by American and British forces. That same night, the 299th also constructed a single-story Medium Girder Bridge
The Medium Girder Bridge (MGB) is a lightweight, man portable bridge and can be assembled without help from heavy equipment. In addition, it is also a deck type, two-girder bridging system capable of carrying loads up to and including Main battl ...
to patch the damage done to the highway span. The 299th was part of the U.S. Army's 3rd Infantry Division as they crossed the border into Iraq
Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq ...
on 20 March 2003.
Syrian civil war
In February 2018, pro-regime fighters used a pontoon bridge to cross the Euphrates river during the Battle of Khasham.
Eastern Ukraine offensive
In May 2022, Ukrainian forces repelled an attempted Russian military crossing of the Donets river
The Seversky Donets () or Siverskyi Donets (), usually simply called the Donets, is a river on the south of the East European Plain. It originates in the Central Russian Upland, north of Belgorod, flows south-east through Ukraine (Kharkiv, Don ...
, west of Sievierodonetsk
russian: Северодоне́цк
, other_name = Severodonetsk
, settlement_type = City
, image_skyline =
, image_caption =
, image_flag = Severodoneck prapor.png
, image_shield ...
in Luhansk Oblast
Luhansk Oblast ( uk, Луга́нська о́бласть, translit=Luhanska oblast; russian: Луганская область, translit=Luganskaya oblast; also referred to as Luhanshchyna, uk, Луга́нщина) is the easternmost oblast ...
, during the Eastern Ukraine offensive
The eastern Ukraine campaign is a theatre of operation in the ongoing 2022 Russian invasion of Ukraine that affects three provinces (oblasts) in the eastern part of Ukraine: Donetsk Oblast and Luhansk Oblast (collectively the Donbas) and K ...
. At least one Russian battalion tactical group was reportedly destroyed, as well as the pontoon bridge deployed in the crossing.
Permanent pontoon bridges in civilian use
This design for bridges is also used for permanent bridges designed for highway traffic, pedestrian traffic and bicycles, with sections for boats to ply the waterway being crossed. Seattle has several permanent pontoon bridges. Seattle in the United States and Kelowna in British Columbia, Canada are two places with permanent pontoon bridges, see William R. Bennett Bridge
The William R. Bennett Bridge is a pontoon bridge in the Okanagan Valley of British Columbia, Canada. Completed on May 25, 2008, the bridge replaced the older Okanagan Lake Bridge built in 1958 to link Downtown Kelowna to West Kelowna across Oka ...
in British Columbia and these in Seattle: Lacey V. Murrow Memorial Bridge
The Lacey V. Murrow Memorial Bridge is a floating bridge in the Seattle metropolitan area of the U.S. state of Washington. It is one of the Interstate 90 floating bridges that carries the eastbound lanes of Interstate 90 across Lake Washingto ...
, Evergreen Point Floating Bridge
The Evergreen Point Floating Bridge, also known as the 520 Bridge and officially the Governor Albert D. Rosellini Bridge, carries Washington State Route 520 across Lake Washington from Seattle to its eastern suburbs. The floating span is the ...
and Homer M. Hadley Memorial Bridge
The Third Lake Washington Bridge, officially the Homer M. Hadley Memorial Bridge, is a floating bridge in the Seattle metropolitan area of the U.S. state of Washington. It is one of the Interstate 90 floating bridges, carrying the westbound lan ...
. There are five pontoon bridges across the Suez Canal
The Suez Canal ( arz, قَنَاةُ ٱلسُّوَيْسِ, ') is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia. The long canal is a popular ...
.
Failures and disasters
The Saint Isaac's Bridge
Isaakievsky pontoon bridge (Saint Isaac's Bridge) was the first bridge across Neva river in St.Petersburg, by then the capital of Russian Empire. It was first constructed in 1727. Starting from 1732 it was rebuilt each summer for a period 184 yea ...
across the Neva River
The Neva (russian: Нева́, ) is a river in northwestern Russia flowing from Lake Ladoga through the western part of Leningrad Oblast (historical region of Ingria) to the Neva Bay of the Gulf of Finland. Despite its modest length of , it i ...
in Saint Petersburg
Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
suffered two disasters, one natural, a gale in 1733, and then a fire in 1916.
Floating bridges can be vulnerable to inclement weather, especially strong winds. The U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...
of Washington
Washington commonly refers to:
* Washington (state), United States
* Washington, D.C., the capital of the United States
** A metonym for the federal government of the United States
** Washington metropolitan area, the metropolitan area centered o ...
is home to some of the longest permanent floating bridges in the world, and two of these failed in part due to strong winds.
In 1979, the longest floating bridge crossing salt water, the Hood Canal Bridge
The Hood Canal Bridge (officially William A. Bugge Bridge) is a floating bridge in the northwest United States, located in western Washington. It carries State Route 104 across Hood Canal of Puget Sound and connects the Olympic and Kitsap P ...
, was subjected to winds of , gusting up to . Waves of battered the sides of the bridge, and within a few hours the western of the structure had sunk.[ It has since been rebuilt.
In 1990, the 1940 ]Lacey V. Murrow Memorial Bridge
The Lacey V. Murrow Memorial Bridge is a floating bridge in the Seattle metropolitan area of the U.S. state of Washington. It is one of the Interstate 90 floating bridges that carries the eastbound lanes of Interstate 90 across Lake Washingto ...
was closed for renovations. Specifically, the sidewalks were being removed to widen the traffic lanes to the standards mandated by the Interstate Highway System
The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, is a network of controlled-access highways that forms part of the National Highway System in the United States. Th ...
. Engineers realized that jackhammers could not be employed to remove the sidewalks without risking compromising the structural integrity of the entire bridge. As such, a unique process called hydrodemolition was employed, in which powerful jets of water are used to blast away concrete, bit by bit. The water used in this process was temporarily stored in the hollow chambers in the pontoons of the bridge in order to prevent it from contaminating the lake. During a week of rain and strong winds, the watertight doors were not closed and the pontoons filled with water from the storm, in addition to the water from the hydrodemolition. The inundated bridge broke apart and sank. The bridge was rebuilt in 1993.
A minor disaster occurs if anchors or connections between the pontoon bridge segments fail. This may happen because of overloading, extreme weather or flood. The bridge disintegrates and parts of it start to float away. Many cases are known. When the Lacey V. Murrow Memorial Bridge sank, it severed the anchor cables of the bridge parallel to it. A powerful tugboat pulled on that bridge against the wind during a subsequent storm, and prevented further damage.
See also
* Floating dock
* List of pontoon bridges
These pontoon bridges are semi-permanent floating bridges located throughout the world. Four of the five longest floating bridges in the world are in Washington state.
Longest
The former Albert D. Rosellini Evergreen Point Bridge, at 7,578 feet ...
* Mabey Logistic Support Bridge
The Mabey Logistic Support Bridge (in the United States, the Mabey-Johnson Bridge) is a portable pre-fabricated truss bridge, designed for use by military engineering units to upgrade routes for heavier traffic, replace civilian bridges damaged ...
bailey type bridge that can be made into a multi-span bridge on pontoons
* Military bridge The following is a partial list of ''Military bridges''
* AM 50
* Armoured vehicle-launched bridge
* Bailey bridge
* Callender-Hamilton bridge
*DSB Dry Support Bridge
* Mabey Logistic Support Bridge
* MGB Medium Girder Bridge
* Pontoon bridge
S ...
s
* Medium Girder Bridge
The Medium Girder Bridge (MGB) is a lightweight, man portable bridge and can be assembled without help from heavy equipment. In addition, it is also a deck type, two-girder bridging system capable of carrying loads up to and including Main battl ...
for another bridge type with mobile military application.
* Mulberry Harbour – as used at D-Day
The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D ...
* Okanagan Lake Bridge
The Okanagan Lake Bridge (also known as the Kelowna Floating Bridge) was a three-lane, long floating bridge in British Columbia, Canada. It crossed Okanagan Lake, connecting the Westside area to Kelowna on the lake's eastern side. Taller boa ...
** William R. Bennett Bridge
The William R. Bennett Bridge is a pontoon bridge in the Okanagan Valley of British Columbia, Canada. Completed on May 25, 2008, the bridge replaced the older Okanagan Lake Bridge built in 1958 to link Downtown Kelowna to West Kelowna across Oka ...
* 549th Engineer Light Ponton Company
* Vlotbrug Vlotbrug (plural, nl, vlotbruggen) translates from Dutch into English as "float bridge". In its broadest sense, it includes pontoon bridges. In a narrower sense, it includes floating swing bridges which pivot either centrally or from one or both ba ...
, a design of retractable pontoon bridge specific to the Netherlands
Notes
References
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* Brook, Timothy. (1998). '' The Confusions of Pleasure: Commerce and Culture in Ming China''. Berkeley: University of California Press.
* Graff, David Andrew and Robin Higham (2002). ''A Military History of China''. Boulder: Westview Press.
* Needham, Joseph (1986). ''Science and Civilization in China: Volume 4, Physics and Physical Technology, Part 3, Civil Engineering and Nautics''. Taipei: Caves Books, Ltd.
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External links
'' "Combat Engineers Take a River In Their Stride" '', December 1943, Popular Mechanics
detailed World War Two article with rare photos of setting up of a pontoon bridge
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{{DEFAULTSORT:Pontoon Bridge
Chinese inventions
Bridges by structural type