Brahmaputra river - wikipedia Brahmaputra river Brahmaputra ব্ৰহ্মপুত্ৰ ब्रह्मपुत्र River The Brahmaputra in Guwahati, Assam, India. Name origin : Sanskrit for Son ( Putra ) of Brahmā Countries China, India, Bangladesh States Assam, Arunachal Pradesh Autonomous Region Tibet Tributaries - left Dibang River, Lohit River, Dhansiri River, Kolong River - right Kameng River, Manas River, Beki River, Raidak River, Jaldhaka River, Teesta River, Subansiri River City Guwahati, Dibrugarh, Tezpur Source Bhagirath Glacier - location Himalayas, Tibet - elevation 5,210 m ( 17,093 ft ) - coordinates 30 ° 23 ′ N 82 ° 0 ′ E ﻿ / ﻿ 30.383 ° N 82.000 ° E ﻿ / 30.383 ; 82.000 Mouth Bay of Bengal - location Ganges Delta, Bangladesh - elevation 0 m ( 0 ft ) - coordinates 25 ° 13 ′ 24 '' N 89 ° 41 ′ 41 '' E ﻿ / ﻿ 25.22333 ° N 89.69472 ° E ﻿ / 25.22333 ; 89.69472 Coordinates : 25 ° 13 ′ 24 '' N 89 ° 41 ′ 41 '' E ﻿ / ﻿ 25.22333 ° N 89.69472 ° E ﻿ / 25.22333 ; 89.69472 Length 3,848 km ( 2,390 mi ) Basin 712,035 km ( 274,900 sq mi ) Discharge - average 19,800 m / s ( 699,200 cu ft / s ) - max 100,000 m / s ( 3,531,500 cu ft / s ) Map of the combined drainage basins of the Brahmaputra ( violet ), Ganges ( orange ), and Meghna ( green ). The Brahmaputra ( / ˌbrɑːməˈpuːtrə / is one of the major rivers of Asia, a trans - boundary river which flows through China, India and Bangladesh. As such, it is known by various names in the region : Assamese : ব্ৰহ্মপুত্ৰ নদ ( ' নদ ' nôd, masculine form of ' নদী ' nôdi `` river '' ) Brôhmôputrô ( bɹɔɦmɔputɹɔ ) ; Sanskrit : ब्रह्मपुत्र, IAST : Brahmaputra ; Tibetan : ཡར ་ ཀླུངས ་ གཙང ་ པོ ་, Wylie : yar klung gtsang po Yarlung Tsangpo ; simplified Chinese : 布 拉 马 普 特 拉 河 ; traditional Chinese : 布 拉 馬 普 特 拉 河 ; pinyin : Bùlāmǎpǔtèlā Hé. It is also called Tsangpo - Brahmaputra ( when referring to the whole river including the stretch within Tibet ). The Manas River, which runs through Bhutan, joins it at Jogighopa, in India. It is the tenth largest river in the world by discharge, and the 15th longest. With its origin in the Angsi glacier, located on the northern side of the Himalayas in Burang County of Tibet as the Yarlung Tsangpo River, it flows across southern Tibet to break through the Himalayas in great gorges ( including the Yarlung Tsangpo Grand Canyon ) and into Arunachal Pradesh ( India ). It flows southwest through the Assam Valley as Brahmaputra and south through Bangladesh as the Jamuna ( not to be mistaken with Yamuna of India ). In the vast Ganges Delta, it merges with the Padma, the popular name of the river Ganges in Bangladesh, and finally the Meghna and from here it is known as Meghna before emptying into the Bay of Bengal. About 3,848 km ( 2,391 mi ) long, the Brahmaputra is an important river for irrigation and transportation. The average depth of the river is 38 m ( 124 ft ) and maximum depth is 120 m ( 380 ft ). The river is prone to catastrophic flooding in the spring when Himalayas snow melts. The average discharge of the river is about 19,800 m / s ( 700,000 cu ft / s ), and floods can reach over 100,000 m / s ( 3,500,000 cu ft / s ). It is a classic example of a braided river and is highly susceptible to channel migration and avulsion. It is also one of the few rivers in the world that exhibit a tidal bore. It is navigable for most of its length. The river drains the Himalaya east of the Indo - Nepal border, south - central portion of the Tibetan plateau above the Ganga basin, south - eastern portion of Tibet, the Patkai - Bum hills, the northern slopes of the Meghalaya hills, the Assam plains, and the northern portion of Bangladesh. The basin, especially south of Tibet, is characterized by high levels of rainfall. Kangchenjunga ( 8,586 m ) is the only peak above 8,000 m, hence is the highest point within the Brahmaputra basin. The Brahmaputra 's upper course was long unknown, and its identity with the Yarlung Tsangpo was only established by exploration in 1884 -- 86. This river is often called Tsangpo - Brahmaputra river. The lower reaches are sacred to Hindus. While most rivers on the Indian subcontinent have female names, this river has a rare male name, as it means `` son of Brahma '' in Sanskrit ( putra means `` son '' ). Contents 1 Geography 1.1 Course 1.1. 1 Tibet 1.1. 2 Assam and adjoining region 1.1. 3 Bangladesh 1.2 Basin characteristics 1.3 Discharge 1.3. 1 Climate 1.3. 2 Hydrology 1.3. 3 Floodplain evolution 1.3. 4 Flooding 1.4 Channel morphology 1.4. 1 River engineering 2 History 2.1 Earlier history 2.2 International cooperation 2.3 Significance to people 3 Development 3.1 Bridges 3.2 National Waterway 2 4 References 4.1 See also 4.2 External links 4.3 Further reading 4.4 Notes 4.5 Citations Geography Course Tibet Main article : Yarlung Tsangpo Yarlung Tsangpo River in Tibet. The Brahmaputra River, also called Yarlung Tsangpo in Tibetan language, originates on the Angsi Glacier located on the northern side of the Himalayas in Burang County of Tibet. The source of the river was earlier thought to be on the Chemayungdung glacier, which covers the slopes of the Himalayas about 97 km ( 60 mi ) southeast of Lake Manasarovar in southwestern Tibet. The river is 3,848 km ( 2,391 mi ) long, and its drainage area is 712,035 km ( 274,918 sq mi ) according to the new findings, while previous documents showed its length varied from 2,900 to 3,350 km and its drainage area between 520,000 and 1.73 million km. This finding has been given by Liu Shaochuang, a researcher with the Institute of Remote Sensing Applications under the analysis using expeditions and satellite imagery from the Chinese Academy of Sciences ( CAS ). From its source, the river runs for nearly 1,100 km ( 680 mi ) in a generally easterly direction between the main range of the Himalayas to the south and the Kailas Range to the north. Throughout its upper course, the river is generally known as the Tsangpo ( `` Purifier '' ) ; it is also known by its Chinese name ( Yarlung Zangbo ) and by other local Tibetan names. In Tibet, the Tsangpo receives a number of tributaries. The most important left - bank tributaries are the Raka Zangbo ( Raka Tsangpo ), which joins the river west of Xigazê ( Shigatse ), and the Lhasa ( Kyi ), which flows past the Tibetan capital of Lhasa and joins the Tsangpo at Qüxü. The Nyang Qu ( Gyamda ) River joins the river from the north at Zela ( Tsela Dzong ). On the right bank, a second river called the Nyang Qu ( Nyang Chu ) meets the Tsangpo at Xigazê. After passing Pi ( Pe ) in Tibet, the river turns suddenly to the north and northeast and cuts a course through a succession of great narrow gorges between the mountainous massifs of Gyala Peri and Namcha Barwa in a series of rapids and cascades. Thereafter, the river turns south and southwest and flows through a deep gorge ( the `` Grand Canyon '' of the Tsangpo ) across the eastern extremity of the Himalayas with canyon walls that extend upward for 5,000 m ( 16,000 ft ) and more on each side. During that stretch, the river enters northern Arunachal Pradesh state in northeastern India, where it is known as the Dihang ( or Siang ) River, and turns more southerly. Assam and adjoining region Brahmaputra basin in India A view of sunset in the Brahmaputra from Dibrugarh The Brahmaputra enters India in the state of Arunachal Pradesh, where it is called Siang. It makes a very rapid descent from its original height in Tibet, and finally appears in the plains, where it is called Dihang. It flows for about 35 km ( 22 mi ) and is joined by the Dibang River and the Lohit River at the head of the Assam Valley. Below the Lohit, the river is called Brahmaputra and Burlung - Buthur by native Bodo tribals, it then enters the state of Assam, and becomes very wide -- as wide as 20 km ( 12 mi ) in parts of Assam. The Dihang, winding out of the mountains, turns toward the southeast and descends into a low - lying basin as it enters northeastern Assam state. Just west of the town of Sadiya, the river again turns to the southwest and is joined by two mountain streams, the Lohit and the Dibang. Below that confluence, about 1,450 km ( 900 mi ) from the Bay of Bengal, the river becomes known conventionally as the Brahmaputra ( `` Son of Brahma '' ). In Assam, the river is mighty, even in the dry season, and during the rains, its banks are more than 8 km ( 5.0 mi ) apart. As the river follows its braided 700 m ( 2,300 ft ) course through the valley, it receives several rapidly rushing Himalayan streams, including the Subansiri, Kameng, Bhareli, Dhansiri, Manas, Champamati, Saralbhanga, and Sankosh Rivers. The main tributaries from the hills and from the plateau to the south are the Burhi Dihing, the Disang, the Dikhu, and the Kopili. Between Dibrugarh and Lakhimpur Districts, the river divides into two channels -- the northern Kherkutia channel and the southern Brahmaputra channel. The two channels join again about 100 km ( 62 mi ) downstream, forming the Majuli island, which is the largest river island in the world. At Guwahati, near the ancient pilgrimage centre of Hajo, the Brahmaputra cuts through the rocks of the Shillong Plateau, and is at its narrowest at 1 km ( 1,100 yd ) bank - to - bank. Because of the river 's narrow width, the Battle of Saraighat was fought here in March 1671. The first combined rail / road bridge across the Brahmaputra was opened to traffic in April 1962 at Saraighat. The environment of the Brahmaputra floodplains in Assam have been described as the Brahmaputra Valley semi-evergreen forests ecoregion. Bangladesh Rivers of Bangladesh, including the Brahmaputra In Bangladesh, the Brahmaputra is joined by the Teesta River ( or Tista ), one of its largest tributaries. Below the Tista, the Brahmaputra splits into two distributary branches. The western branch, which contains the majority of the river 's flow, continues due south as the Jamuna ( Jomuna ) to merge with the lower Ganga, called the Padma River ( Pôdda ). The eastern branch, formerly the larger, but now much smaller, is called the lower or old Brahmaputra ( Brommoputro ). It curves southeast to join the Meghna River near Dhaka. The Padma and Meghna converge near Chandpur and flow out into the Bay of Bengal. This final part of the river is called Meghna. The Brahmaputra enters the plains of Bangladesh after turning south around the Garo Hills below Dhuburi, India. After flowing past Chilmari, Bangladesh, it is joined on its right bank by the Tista River and then follows a 240 km ( 150 - mi ) course due south as the Jamuna River. ( South of Gaibanda, the Old Brahmaputra leaves the left bank of the main stream and flows past Jamalpur and Mymensingh to join the Meghna River at Bhairab Bazar. ) Before its confluence with the Ganga, the Jamuna receives the combined waters of the Baral, Atrai, and Hurasagar Rivers on its right bank and becomes the point of departure of the large Dhaleswari River on its left bank. A tributary of the Dhaleswari, the Buriganga ( `` Old Ganga '' ), flows past Dhaka, the capital of Bangladesh, and joins the Meghna River above Munshiganj. The Jamuna joins with the Ganga north of Goalundo Ghat, below which, as the Padma, their combined waters flow to the southeast for a distance of about 120 km ( 75 mi ). After several smaller channels branch off to feed the Ganga - Brahmaputra delta to the south, the main body of the Padma reaches its confluence with the Meghna River near Chandpur and then enters the Bay of Bengal through the Meghna estuary and lesser channels flowing through the delta. The growth of the Ganga - Brahmaputra Delta is dominated by tidal processes. The Ganga Delta, fed by the waters of numerous rivers, including the Ganga and Brahmaputra, is 59,570 square kilometres ( 23,000 sq mi ) the largest river deltas in the world. Basin characteristics The Brahmaputra River from Space The basin of the Brahmaputra river is 651 334 km and it is a good example of a braided river and meanders quite a bit and frequently forms temporary sand bars. A region of significant tectonic activity has developed in the Jamuna River and is associated with the Himalayan uplift and development of the Bengal foredeep. Several researchers has hypothesized that the underlying structural control on the location of the major river systems of Bangladesh. A zone of ' structural weakness ' along the present course of the Ganga - Jamuna - Padma Rivers due to either a subsiding trough or a fault at depth has been observed by Morgan and Melntire. ( 1959 ). Scijmonsbergen ( 1999 ) contends that width changes in the Jamuna may respond to these faults and they may also cause increased sedimentation upstream of the fault. He presented a few images to argue that a fault downstream of the Bangabandhu Multipurpose Bridge has affected channel migration. Huge accumulations of sediment that have been fed from Himalayan erosion has been produced due to the deepening of the Bengal Basin, with the thickness of sediment above the Precambrian basement increasing from a few hundred metres in the shelf region to over 18 km in the Bengal foredeep to the south. The tectonic and climatic context for the large water and sediment discharges in the rivers of Bangladesh was set by the ongoing subsidence in the Bengal Basin, combined with high rates of Himalayan uplift. The control of uplift and subsidence is, however, clear. The courses of the Jamuna and Ganga Rivers are first - order controls due to the fact that they are most influenced by the uplifted Plcistoccnc terraces of the Barind and Madhupur tracts. Discharge The Ganga - Brahmaputra system has the third - greatest average discharge of the world 's rivers -- roughly 30,770 m ( 1,086,500 ft ) per second ; and the river Brahmaputra alone supplies about 19,800 m ( 700,000 ft ) per second of the total discharge. The rivers ' combined suspended sediment load of about 1.87 billion tonnes ( 1.84 billion tons ) per year is the world 's highest. In the past, the lower course of the Brahmaputra was different and passed through the Jamalpur and Mymensingh districts. In a 7.5 magnitude earthquake on 2 April 1762, however, the main channel of the Brahmaputra at Bhahadurabad point was switched southwards and opened as Jamuna due to the result of tectonic uplift of the Madhupur tract. Climate Rising temperature is one of the major cause of snow - melting at the upper Brahmaputra catchment. The discharge of the river Brahmaputra is highly affected by the melting of snow at the upper part of its catchment. The attenuation of river flow due to the melting of snow in the river Brahmaputra basin affects the downstream discharge of the river. This increase in discharge due to significant retreat of snow gives rise to severe catastrophic problems such as flood and erosion. Hydrology The hydrology of the Brahmaputra River is characterized by its significant rates of sediment discharge, the large and variable flows, along with its rapid channel aggradations and accelerated rates of basin denudation. Over time, the deepening of the Bengal Basin caused by erosion will results in the increase in hydraulic radius, and hence allowing for the huge accumulation of sediments fed from the Himalayan erosion by efficient sediment transportation. The thickness of the sediment accumulated above the Precambrian basement has increased over the years from a few hundred meters to over 18 km in the Bengal fore - deep to the south. The ongoing subsidence of the Bengal Basin and the high rate of Himalayan uplift continues to contribute to the large water and sediment discharges of fine sand and silt, with 1 % clay, in the Brahmaputra River. Climatic change plays a crucial role in affecting the basin hydrology. Throughout the year, there is a significant rise in hydrograph, with a broad peak between July and September. The Brahmaputra River experiences two high - water seasons, one in early summer caused by snow melt in the mountains, and one in late summer caused by runoff from monsoon rains. The river flow is strongly influenced by snow and ice melting of the glaciers, which are located mainly on the eastern Himalaya regions in the upstream parts of the basin. The snow and glacier melt contribution to the total annual runoff is about 27 %, while the annual rainfall contributes to about 1.9 m and 19,830 m3 / s of discharge. The highest recorded daily discharge in the Brahmaputra at Pandu was 72,726 m3 / s August 1962 while the lowest was 1,757 m3 / s in February 1968. The increased rates of snow and glacial melt are likely to increase summer flows in some river systems for a few decades, followed by a reduction in flow as the glaciers disappear and snowfall diminishes. This is particularly true for the dry season when water availability is crucial for the irrigation systems. Floodplain evolution The course of the Brahmaputra River has changed drastically in the past two and a half centuries, moving its river course westwards for a distance of about 80 km ( 50 mi ), leaving its old river course, appropriately named the old Brahmaputra river, behind. In the past, the floodplain of the old river course had soils which were more properly formed compared to graded sediments on the operating Jamuna river. This change of river course resulted in modifications to the soil - forming process, which include acidification, breakdown of clays and buildup of organic matter, with the soils showing an increasing amount of biotic homogenization, mottling, coating arounds Peds and maturing soil arrangement, shape and pattern. In the future, the consequences of local ground subsidence coupled with flood prevention propositions, for instance localised breakwaters, that increase flood - plain water depths outside the water breakers, may alter the water levels of the floodplains. Throughout the years, bars, scroll bars and sand dunes are formed at the edge of the flood plain by deposition. The height difference of the channel topography is often not more than 1m - 2m. Furthermore, flooding over history of the river has caused the formation of river levees due to deposition from overbank flow. The height difference between the levee top and the surrounding floodplains is typically 1m along small channels and 2 - 3m along major channels. Crevasse splay, a sedimentary fluvial deposit which forms when a stream breaks its natural or artificial levees and deposits sediment on a floodplain, are often formed due to a breach in levee, forming a lobe of sediments which progrades onto the adjacent floodplain. Lastly, flood basins are often formed between the levees of adjacent rivers. Flooding Flooded villages along the Brahmaputra During the monsoon season ( June -- October ), floods are a very common occurrence. Deforestation in the Brahmaputra watershed has resulted in increased siltation levels, flash floods, and soil erosion in critical downstream habitat, such as the Kaziranga National Park in middle Assam. Occasionally, massive flooding causes huge losses to crops, life, and property. Periodic flooding is a natural phenomenon which is ecologically important because it helps maintain the lowland grasslands and associated wildlife. Periodic floods also deposit fresh alluvium, replenishing the fertile soil of the Brahmaputra River Valley. Thus flooding, agriculture, and agricultural practices are closely connected. The effects of flooding can be devastating and cause significant damage to crops and houses, serious bank erosive with consequent loss of homesteads, school and land, and loss of many lives, livestock and fisheries. During the 1998 flood, over 70 % of the land area of Bangladesh was inundated, affecting 31 million people and 1 million homesteads. In the 1998 flood which had an unusually long duration from July to September, claimed 918 human lives and was responsible for damaging 16 00 and 6000 km of roads and embankments respectively, and affecting 6000 km of standing crops. The 2004 floods, over 25 % of the population of Bangladesh or 36 million people, was affected by the floods ; 800 lives were lost ; 952 000 houses were destroyed and 1.4 million were badly damaged ; 24 000 educational institutions were affected including the destruction of 1200 primary schools, 2 million governments and private tubewells were affected, over 3 million latrines were damaged or washed away, this increases the risks of waterborne diseases including diarrhea and cholera. Also, 1.1 M ha of rice crop was submerged and lost before it could be harvested, with 7 % of the yearly aus ( early season ) rice crop lost ; 270 000 ha of grazing land was affected, 5600 livestock perished together with 254 00 poultry and 63 MT of lost fish production. Flood - control measures are taken by water resource department and the Brahmaputra Board, but until now the flood problem remains unsolved. At least a third of the land of Majuli island has been eroded by the river. Recently, it is suggested that a highway protected by concrete mat along the river bank and excavation of the river bed can curb this menace. This project, named the Brahmaputra River Restoration Project, is yet to be implemented by the government. Recently the Central Government approved the construction of Brahmaputra Express Highways. Channel morphology The course of the Brahmaputra River has changed dramatically over the past 250 years, with evidence of large - scale avulsion, in the period 1776 -- 1850, of 80 km from east of the Madhupur tract to the west of it. Prior to 1843, the Brahmaputra flowed within the channel now termed the `` old Brahmaputra ''. The banks of the river are mostly weakly cohesive sand and silts, which usually erodes through large scale slab failure, where previously deposited materials undergo scour and bank erosion during flood periods. Presently, the river 's erosion rate has decreased to 30m per year as compared to 150m per year from 1973 to 1992. This erosion has, however, destroyed so much land that it has caused 0.7 million people to become homeless due to loss of land. Several studies have discussed the reasons for the avulsion of the river into its present course, and have suggested a number of reasons including tectonic activity, switches in upstream course of the Teesta River, the influence of increased discharge, catastrophic floods and river capture into an old river course. From an analysis of maps of the river between 1776 and 1843, it was concluded in a study that the river avulsion was more likely gradual than catastrophic and sudden, and may have been generated by bank erosion, perhaps around a large mid-channel bar, causing a diversion of the channel into the existing floodplain channel. The Brahmaputra channel is governed by the peak and low flow periods during which its bed undergoes tremendous modification. The Brahmaputra 's bankline migration is inconsistent with time. The Brahmaputra river bed has widened significantly since 1916 and appears to be shifting more towards the south than towards the north. Together with the contemporary slow migration of the river, the left bank is being eroded away faster than the right bank. River engineering The Brahmaputra River experiences high levels of bank erosion ( usually via slab failure ) and channel migration caused by its strong current, lack of river bank vegetation, and loose sand and silt which compose its banks. It is thus difficult to build permanent structures on the river, and protective structures designed to limit the river 's erosional effects often face numerous issues during and after construction. In fact, a 2004 report by the Bangladesh Disaster and Emergency Sub-Group ( BDER ) has stated that several of such protective systems have ' just failed '. However, some progress has been made in the form of construction works which stabilize sections of the river, albeit the need for heavy maintenance. The Bangabandhu Bridge, the only bridge to span the river 's major distributary, the Jamuna, was thus opened in June 1998. Constructed at a narrow braid belt of the river, it is 4.8 km long with a platform 18.5 m wide, and it is used to carry railroad traffic as well as gas, power and telecommunication lines. Due to the variable nature of the river, prediction of the river 's future course is crucial in planning upstream engineering to prevent flooding on the bridge. China had built the Zangmu Dam in the upper course of the Brahmaputra River in the Tibet region and it was operationalised on 13 October 2015. The main purpose of the dam was to generate electricity for China and its operation has caused concerns for downstream neighbours like India as the presence of dams in the upper course of the river will mean unpredictability in the dynamics of downstream flows. History Brahmaputra River seen from a spot satellite The Brahmaputra and its tributaries in northeastern India and Bangladesh James Rennell 's 1776 map shows the Brahmaputra 's flow before an earthquake on 2 April 1762 and the Teesta River flowing in three channels to the Ganga before a flood in 1787. Earlier history Early accounts give its name as Dyardanes. In the past, the course of the lower Brahmaputra was different and passed through the Jamalpur and Mymensingh districts. Some water still flows through that course, now called the Old Brahmaputra, as a distributary of the main channel. A question about the river system in Bangladesh is when and why the Brahmaputra changed its main course, at the site of the Jamuna and the `` Old Brahmaputra '' fork that can be seen by comparing modern maps to historic maps before the 1800s. The Brahmaputra likely flowed directly south along its present main channel for much of the time since the last glacial maximum, switching back and forth between the two courses several times throughout the Holocene. One idea about the most recent avulsion is that the change in the course of the main waters of the Brahmaputra took place suddenly in 1787, the year of the heavy flooding of the river Tista. In the middle of the 18th century, at least three fair - sized streams flowed between the Rajshahi and Dhaka Divisions, viz., the Daokoba, a branch of the Tista, the Monash or Konai, and the Salangi. The Lahajang and the Elengjany were also important rivers. In Renault 's time, the Brahmaputra as a first step towards securing a more direct course to the sea by leaving the Mahdupur Jungle to the east began to send a considerable volume of water down the Jinai or Jabuna from Jamalpur into the Monash and Salangi. These rivers gradually coalesced and kept shifting to the west till they met the Daokoba, which was showing an equally rapid tendency to cut towards the east. The junction of these rivers gave the Brahmaputra a course worthy of her immense power, and the rivers to right and left silted up. In Renault 's Altas they very much resemble the rivers of Jessore, which dried up after the hundred - mouthed Ganga had cut her new channel to join the Meghna at the south of the Munshiganj subdivision. In 1809, Francis Buchanan - Hamilton wrote that the new channel between Bhawanipur and Dewanranj `` was scarcely inferior to the mighty river, and threatens to sweep away the intermediate country ''. By 1830, the old channel had been reduced to its present insignificance. It was navigable by country boats throughout the year and by launches only during rains, but at the point as low as Jamalpur it was formidable throughout the cold weather. Similar was the position for two or three months just below Mymensingh also. International cooperation The waters of the River Brahmaputra are shared by China, India, and Bangladesh. In the 1990s and 2000s, there was repeated speculation that mentioned Chinese plans to build a dam at the Great Bend, with a view to divert the waters to the north of the country. This has been denied by the Chinese government for many years. At the Kathmandu Workshop of Strategic Foresight Group in August 2009 on Water Security in the Himalayan Region, which brought together in a rare development leading hydrologists from the basin countries, the Chinese scientists argued that it was not feasible for China to undertake such a diversion. However, on 22 April 2010, China confirmed that it was indeed building the Zangmu Dam on the Brahmaputra in Tibet, but assured India that the project would not have any significant effect on the downstream flow to India. This claim has also been reiterated by the Government of India, in an attempt to assuage domestic criticism of Chinese dam construction on the river, but is one that remains hotly debated. Recent years have seen an intensification of grassroots opposition, especially in the state of Assam, against Chinese upstream dam building, as well as growing criticism of the Indian government for its perceived failure to respond appropriately to Chinese hydropower plans. In a meeting of scientists at Dhaka at 2010, 25 leading experts from the basin countries issued a Dhaka Declaration on Water Security calling for exchange of information in low - flow periods, and other means of collaboration. Even though the 1997 UN Watercourses Convention does not prevent any of the basin countries from building a dam upstream, customary law offers some relief to the lower riparian countries. There is also potential for China, India, and Bangladesh to cooperate on transboundary water navigation. Significance to people People fishing in the Brahmaputra River The lives of many millions of Indian and Bangladeshi citizens are reliant on the Brahmaputra river. Its delta is home to 130 million people and 600 000 people live on the riverine islands. These people rely on the annual ' normal ' flood to bring moisture and fresh sediments to the floodplain soils, hence providing the necessities for agricultural and marine farming. In fact, two of the three seasonal rice varieties ( aus and aman ) can not survive without the floodwater. Furthermore, the fish caught both on the floodplain during flood season and from the many floodplain ponds are the main source of protein for many rural populations. Development Bridges Current Bogibeel Bridge Dr. Bhupen Hazarika Setu Kolia Bhomora Setu Naranarayan Setu Saraighat Planned ( under - construction, approved, proposed, etc. ) : Nitin Gadkari announced following 5 new bridges in Dec 2017. Jorhat - Nematighat Disangmukh - Tekeliphuta Louit - Khablu Numaligarh - Gohpur North Guwahati - Guwahati National Waterway 2 National Waterway 2 ( NW2 ) is 891 km long Sadiya - Dhubri stretch of Brahmaputra River in Assam. References See also BrahMos ( missile ) -- A missile named partly after the Brahmaputra River Brahmaputra - class frigate Dhola - Sadiya bridge List of rivers of Asia List of rivers of Assam List of rivers of Bangladesh List of rivers of China List of rivers of India External links Wikimedia Commons has media related to Brahmaputra. Wikisource has the text of the 1911 Encyclopædia Britannica article Brahmaputra. Further reading Bibliography on Water Resources and International Law. Peace Palace Library Rivers of Dhemaji and Dhakuakhana Background to Brahmaputra Flood Scenario The Mighty Brahmaputra Principal Rivers of Assam `` The Brahmaputra '', a detailed study of the river by renowned writer Arup Dutta. ( Published by National Book Trust, New Delhi, India ) Notes ^ Jump up to : `` Scientists pinpoint sources of four major international rivers ''. Xinhua News Agency. 22 August 2011. Retrieved 8 September 2015. Jump up ^ Krishnan, Ananth ( 23 August 2011 ). `` China maps Brahmaputra, Indus ''. The Hindu. Retrieved 8 September 2015. Jump up ^ Michael Buckley ( 2015 - 03 - 30 ). `` The Price of Damming Tibet 's Rivers ''. The New York Times. p. A25. Archived from the original on 2015 - 03 - 31. Retrieved 2015 - 04 - 01. Two of the continent 's wildest rivers have their sources in Tibet : the Salween and the Brahmaputra. Though they are under threat from retreating glaciers, a more immediate concern is Chinese engineering plans. A cascade of five large dams is planned for both the Salween, which now flows freely, and the Brahmaputra, where one dam is already operational. ^ Jump up to : `` Brahmaputra River ''. Encyclopædia Britannica. Jump up ^ `` Brahmaputra River Flowing Down From Himalayas Towards Bay of Bengal ''. Retrieved 22 November 2011. Jump up ^ `` Water Resources of Bangladesh ''. FAO. Archived from the original on 2009 - 08 - 06. Retrieved 2010 - 11 - 18. Jump up ^ Catling, David ( 1992 ). Rice in deep water. International Rice Research Institute. p. 177. ISBN 978 - 971 - 22 - 0005 - 2. Jump up ^ Gopal, Madan ( 1990 ). K.S. Gautam, ed. India through the ages. Publication Division, Ministry of Information and Broadcasting, Government of India. p. 80. Jump up ^ `` China maps Brahmaputra source, course ''. Assam Tribune. 24 August 2011. Archived from the original on 2012 - 07 - 22. Retrieved 2011 - 11 - 09. Jump up ^ Majuli, River Island. `` Largest river island ''. Guinness World Records. Retrieved 6 September 2016. Jump up ^ Singh, Vijay P. ; Sharma, Nayan ; C. Shekhar ; P. Ojha ( 2004 ). The Brahmaputra Basin Water Resources. Springer. p. 113. ISBN 978 - 1 - 4020 - 1737 - 7. Jump up ^ Gupta, Avijit ( 2008 ). Large Rivers : Geomorphology and Management. John Wiley & Sons. pp. 5 --. ISBN 978 - 0 - 470 - 72371 - 5. Jump up ^ The Geography of India : Sacred and Historic Places. Britannica Educational Publishing. 2010. pp. 85 --. ISBN 978 - 1 - 61530 - 202 - 4. Jump up ^ Suess, Eduard ( 1904 ). The face of the earth : ( Das antlitz der erde ). Clarendon press. pp. 50 --. Jump up ^ `` Change in snow cover area of Brahmaputra river basin and its sensitivity to temperature ''. Environmental Systems Research. 4. doi : 10.1186 / s40068 - 015 - 0043 - 0. Jump up ^ Das, D.C. 2000. Agricultural Landuse and Productivity Pattern in Lower Brahmaputra valley ( 1970 -- 71 and 1994 -- 95 ). Ph. D. Thesis, Department of Geography, North Eastern Hill University, Shillong. Jump up ^ Mipun, B.S. 1989. Impact of Migrants and Agricultural Changes in the Lower Brahmaputra Valley : A Case Study of Darrang District. Unpublished Ph. D. Thesis, Department of Geography, North Eastern Hill University, Shillong. Jump up ^ Shrivastava, R.J. ; Heinen, J.T. ( 2005 ). `` Migration and Home Gardens in the Brahmaputra Valley, Assam, India ''. Journal of Ecological Anthropology. 9 : 20 -- 34. doi : 10.5038 / 2162 - 4593.9. 1.2. Jump up ^ ( 1 ) Jump up ^ Monsoon Floods 2004 : Post Flood Needs Assessment Summary Report ( PDF ). Bangladesh Disaster and Emergency Sub-Group ( BDER ) ( Report ). Dhaka, Bangladesh. 2004. p. 23. Jump up ^ `` China operationalizes biggest dam on Brahmaputra in Tibet ''. The Times of India. 13 October 2015. Jump up ^ A compendium of ancient and modern geography : for the use of Eton School By Aaron Arrowsmith, page 56 Jump up ^ e.g. Rennell, 1776 ; Rennel, 1787 ^ Jump up to : `` China admits to Brahmaputra project ''. The Economic Times. 22 April 2010. Jump up ^ MacArthur Foundation, Asian Security Initiative Archived 27 July 2011 at the Wayback Machine. Jump up ^ `` Chinese dam will not impact flow of Brahmaputra : Krishna ''. The Indian Express. 22 April 2010. Jump up ^ BBC. `` Megadams : Battle on the Brahmaputra ''. Retrieved 10 June 2017. Jump up ^ Yeophantong, Pichamon ( 2017 ). `` River activism, policy entrepreneurship and transboundary water disputes in Asia ''. Water International. 42 ( 2 ). doi : 10.1080 / 02508060.2017. 1279041. Retrieved 10 June 2017. Jump up ^ The New Nation, Bangladesh, 17 January 2010 ^ Jump up to : Nitin Gadkari flags off cargo movement on Brahmaputra, Economic Times, 29 Dec 2017. Jump up ^ http://egazette.nic.in/WriteReadData/2016/168716.pdf Jump up ^ `` Press Information Bureau ''. www.pib.nic.in. Government of India. Retrieved 30 January 2017. Citations Rahaman, M.M. ; Varis, O. ( 2009 ). `` Integrated Water Management of the Brahmaputra Basin : Perspectives and Hope for Regional Development ''. Natural Resources Forum. 33 ( 1 ) : 60 -- 75. doi : 10.1111 / j. 1477 - 8947.2009. 01209. x. Sarma, JN ( 2005 ). `` Fluvial process and morphology of the Brahmaputra River in Assam, India ''. Geomorphology. 70 ( 3 -- 4 ) : 226 -- 256. doi : 10.1016 / j. geomorph. 2005.02. 007. Ribhaba Bharali. The Brahmaputra River Restoration Project. Published in Assamese Pratidin, Amar Assam in October 2012. Hydrography of the Indian subcontinent Inland rivers Beas Betwa Bhagirathi Brahmaputra Chambal Chenab Damodar Godavari Gandaki Ganges Ghaghara Indus Jhelum Kali Kaveri Kosi Krishna Luni Mahanadi Mahaweli Meghna Narmada Padma Ravi Sarasvati Sankosh Sharda Son Sutlej Tapti Yamuna Inland lakes, deltas, etc. Ganges Basin Ganges Delta Indus Delta Dal Lake Pookode Lake Skeleton Lake Chilika Lake Lake Powai Borith Lake Saiful Muluk Gosaikunda Nizam Sagar Red Hills Lake Malampuzha Kerala backwaters Pulicat Lake Coastal Indian Ocean Arabian Sea Bay of Bengal Gulf of Kutch Gulf of Khambhat Gulf of Mannar Laccadive Sea Palk Strait Categories Lakes of Bangladesh / India / Nepal / Pakistan Reservoirs and dams in India Rivers of Bangladesh / Bhutan / India / Nepal / Pakistan Hydrography of India Inland Alaknanda Beas Betwa Bhāgīrathī Bharatapuzha Brahmaputra Burhi Gandak Chambal Chenab Chilika Lake Dal Lake Damodar Dibang Ganges Ganges Basin Ganges Delta Ghaghara Godavari Gomti Hooghly Indira Gandhi Canal Indus Indus Delta Indus Basin Jhelum Kali Kaveri Ken Kerala backwaters Koshi Krishna Kushiyara Luni Mahanadi Malampuzha Narmada Nizam Sagar Padma Pamba Periyar Pookode Lake Powai Lake Ramganga Ravi Red Hills Lake Roopkund ( Skeleton Lake ) Sambhar Salt Lake Sapt Koshi Sabarmati River Sarasvati Sharda Someshwari Son Sutlej Tamsa Tapti Tons Vaigai Yamuna Coastal Arabian Sea Bay of Bengal Gulf of Khambhat Gulf of Kutch Gulf of Mannar Indian Ocean Laccadive Sea Palk Strait Ilog Pasig Categories Lakes of India Reservoirs and dams in India Rivers of India Hydrography of Northeast India Rivers Bhogdoi Siang / Dihang / Brahmaputra Dhansiri Dihing Diphlu Feni Gumti Haora Iril Kaladan Kameng or Jia Bhoreli Karnaphuli Khowai Kolong Lohit Manas / Drangme Chhu Manu Mora Dhansiri Muhuri Myntdu Mora Diphlu Sankosh or Puna Tsang Chhu Simsang or Someshwari Surma Surma - 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Question: by which name does the brahmaputra enter into india
Answer: Manas River