Hirakud Dam
Encyclopedia
Hirakud Dam is built across the Mahanadi River
, about 15 km from Sambalpur
in the state of Orissa
in India
. Built in 1957, the dam is one of the world's longest earthen dam.
Behind the dam extends a lake, Hirakud Reservoir, 55 km long. Hirakud Dam is one of the longest dams in the world, about 16 mi (26 km) in length. It is one of the first major multipurpose river valley project started after India's independence. The name of the dam is mostly mis-pronounced
in North India as Hirakund which is actually Hirakud.
delta. In 1945, under the chairmanship of Dr. B. R. Ambedkar, the then Member of Labour, it was decided to invest in the potential benefits of controlling the Mahanadi for multi-purpose use. The Central Waterways, Irrigation and Navigation Commission took up the work.
On 15 Mar 1946, Sir Howthrone Lewis, then the Governor of Orissa, laid the foundation stone of the Hirakud Dam. A project report was submitted to the government in June 1947. Pandit Jawaharlal Nehru
laid the first batch of concrete on 12 April 1948. The dam was completed in 1953 and was formally inaugurated by Prime Minister Jawaharlal Nehru on 13 January 1957. The total cost of the project was Rs. 100.02 crore
s in 1957. Power generation along with agricultural irrigation started in 1956, achieving full potential in 1966.
, it is the longest major earthen dam in Asia, measuring 25.8 km (16 mi) including dykes, and stands across the river Mahanadi. The main dam has an overall length of 4.8 km (3 mi) spanning between two hills; the Lamdungri on the left and the Chandili Dunguri on the right. The dam is flanked by 21 km (13 mi) of earthen dykes on both the left and right sides, closing the low saddles beyond the adjoining hills. The dam and dykes together measure 25.8 km (16 mi). It also forms the biggest artificial lake in Asia
, with a reservoir
holding 743 km² (287 sq mi) at full capacity, with a shoreline of over 639 km (397 mi). There are two observation towers on the dam one at each side. One is "Gandhi Minar" and the other one is "Nehru Minar". Both the observation towers present breathtaking views of the lake.
and 2 x 24 MW Francis turbine generators for an installed capacity of 259.5 MW. Power Station II is located 19 km (12 mi) southeast of the dam 21°21′10"N 83°55′00"E at Chipilima. It contains 3 x 24 MW generators. The entire installed capacity of the dam's power houses is 307.5 MW. Power House I and II were built in three stages. During stage I, four generators were installed at PH I and in stage II, the power channel two and Power House II was constructed. All three generators were installed at PH II along with two more at PH I by 1963. Between 1982 and 1990, the seventh and final generator was installed at PH I.
The dam helps control floods in the Mahanadi delta and irrigates 75,000 square kilometres of land. Hydroelectricity is also generated. The Hirakud Dam regulates 83,400 km² (32,200 mi²) of Mahanadi's drainage. The reservoir has a storage capacity of 5.818 km³ with gross of 8.136 km³.
It drains an area of 133,090 km², more than twice the area of Sri Lanka
. The amount of earth, concrete and masonry materials used to build the dam is sufficient to make a road 8 metres wide and pave it from Kanyakumari
to Kashmir
and from Amritsar
to Dibrugarh
in Assam
. With successful irrigation provided by the dam, Sambalpur is called the rice bowl of Orissa
. Here photography is strictly prohibited.
The project provides 1,556 km² of kharif and 1,084 km² of rabi
irrigation in districts of Sambalpur, Bargarh
, Bolangir, and Subarnpur. The water released by the power plant irrigates another 4360 km² of CCA
in Mahanadi delta. The dam can generate up to 307.5 MW of electrical power through its two power plants at Burla, on the dam's right bank and Chiplima, 22 km downstream from the dam. In addition, the project provides flood protection to 9500 km² of delta area in district of Cuttack
and Puri
.
Chiplima has gained prominence as the second hydroelectric project of the Hirakud Dam. A natural fall of 80 to 120 feet (25 to 40 m) in the river Mahanadi is used to generate electricity. The place is mostly inhabited by fisherman, whose deity ghanteswari is very popular in the neighbouring area. The State Livestock Breeding Farm and Agricultural Farm are located here.
In the original estimate, an amount of Rs 12 crores was provided for payment of compensation to the affected people. After revision, the amount was reduced to Rs 9.5 crores and the total compensation paid to the people was, in reality, only Rs 3.32 crores. A large number of families were evacuated from their hearth and homes without compensation from 1956 onwards.
, with out any trace of humans. It is near Kumarbandh village of Belpahar-Banharpali range which is about 90 km from Sambalpur
. It can be reached by launch
from Hirakud Dam, it is closer by 10 km via the river. The island is a submerged hill, and before the construction of Hirakud Dam it was a developed village. During the resettlement period, villagers left some of their cattle behind; when the dam construction was over, the cattle settled on the hilltop. With the passage of time the nearby area filled up with the reservoir water, turning the hilltop into an island. Being away from mankind, the cattle are now wild, very swift and not easily caught. Living on a hilltop with dense forest, they are larger than tame cattle, almost all of which are white in colour. Nearby residents attempt to capture these animals from time to time, but these hunts are rarely successful. Though descended from tame cattle, these animals provide a contrasting picture of this breed of animal returning to life in the wild.
, Great Crested Grebe
and several others.
Mahanadi River
The Mahanadi in East Central India. It drains an area of around 141,600 km2 and has a total course of 858 km. The river flows through the states of Chhattisgarh and Orissa.-Source:...
, about 15 km from Sambalpur
Sambalpur
Sambalpur is a city in Sambalpur district in the Indian state of Orissa.It lies at a distance of 321 km from the state capital Bhubaneswar. In the year 1876, Sambalpur was established as a municipality. It is currently the headquarters and the largest city of Sambalpur district. It is also...
in the state of Orissa
Orissa
Orissa , officially Odisha since Nov 2011, is a state of India, located on the east coast of India, by the Bay of Bengal. It is the modern name of the ancient nation of Kalinga, which was invaded by the Maurya Emperor Ashoka in 261 BC. The modern state of Orissa was established on 1 April...
in India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
. Built in 1957, the dam is one of the world's longest earthen dam.
Behind the dam extends a lake, Hirakud Reservoir, 55 km long. Hirakud Dam is one of the longest dams in the world, about 16 mi (26 km) in length. It is one of the first major multipurpose river valley project started after India's independence. The name of the dam is mostly mis-pronounced
in North India as Hirakund which is actually Hirakud.
Construction history
Before the devastating floods of 1937, Sir M. Visveswararya proposed a detailed investigation for storage reservoirs in the Mahanadi basin to tackle the problem of floods in the MahanadiMahanadi River
The Mahanadi in East Central India. It drains an area of around 141,600 km2 and has a total course of 858 km. The river flows through the states of Chhattisgarh and Orissa.-Source:...
delta. In 1945, under the chairmanship of Dr. B. R. Ambedkar, the then Member of Labour, it was decided to invest in the potential benefits of controlling the Mahanadi for multi-purpose use. The Central Waterways, Irrigation and Navigation Commission took up the work.
On 15 Mar 1946, Sir Howthrone Lewis, then the Governor of Orissa, laid the foundation stone of the Hirakud Dam. A project report was submitted to the government in June 1947. Pandit Jawaharlal Nehru
Jawaharlal Nehru
Jawaharlal Nehru , often referred to with the epithet of Panditji, was an Indian statesman who became the first Prime Minister of independent India and became noted for his “neutralist” policies in foreign affairs. He was also one of the principal leaders of India’s independence movement in the...
laid the first batch of concrete on 12 April 1948. The dam was completed in 1953 and was formally inaugurated by Prime Minister Jawaharlal Nehru on 13 January 1957. The total cost of the project was Rs. 100.02 crore
Crore
A crore is a unit in the Indian number system equal to ten million , or 100 lakhs. It is widely used in India, Bangladesh, Nepal, and Pakistan....
s in 1957. Power generation along with agricultural irrigation started in 1956, achieving full potential in 1966.
Technical details
- Length Total = 25.8 Kilometers
- Length = 4.8 Kilometers
- Artificial Lake = 743 Sq. Kilometers
- Irrigated Area (both crop) = 235477 Hectares
- Area lost in construction of Dam = 147363 acres (596.4 km²)
- Power Generation = 307.5 MW
- Cost = Rs.100.02 crores (in 1957)
- Top dam level = R.L 195.680 Mtr
- F.R.L/ M.W.L = R.L 192.024 Mtr
- Dead storage level = R.L 179.830 Mtr
- Total quantity of earth work in Dam = 18,100,000 m³
- Total quantity of concrete = 1,070,000 m³
- Catchment = 83400 Sq. Kilometers
Structure
The Hirakud Dam is a composite structure of earth, concrete and masonry. 10 km (6 mi) north of SambalpurSambalpur
Sambalpur is a city in Sambalpur district in the Indian state of Orissa.It lies at a distance of 321 km from the state capital Bhubaneswar. In the year 1876, Sambalpur was established as a municipality. It is currently the headquarters and the largest city of Sambalpur district. It is also...
, it is the longest major earthen dam in Asia, measuring 25.8 km (16 mi) including dykes, and stands across the river Mahanadi. The main dam has an overall length of 4.8 km (3 mi) spanning between two hills; the Lamdungri on the left and the Chandili Dunguri on the right. The dam is flanked by 21 km (13 mi) of earthen dykes on both the left and right sides, closing the low saddles beyond the adjoining hills. The dam and dykes together measure 25.8 km (16 mi). It also forms the biggest artificial lake in Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
, with a reservoir
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...
holding 743 km² (287 sq mi) at full capacity, with a shoreline of over 639 km (397 mi). There are two observation towers on the dam one at each side. One is "Gandhi Minar" and the other one is "Nehru Minar". Both the observation towers present breathtaking views of the lake.
Power houses
The dam supports two different hydroelectric power houses. Power House I is located at the base (toe) of the main dam section and contains 5 x 37.5 MW Kaplan turbineKaplan turbine
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by the Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and...
and 2 x 24 MW Francis turbine generators for an installed capacity of 259.5 MW. Power Station II is located 19 km (12 mi) southeast of the dam 21°21′10"N 83°55′00"E at Chipilima. It contains 3 x 24 MW generators. The entire installed capacity of the dam's power houses is 307.5 MW. Power House I and II were built in three stages. During stage I, four generators were installed at PH I and in stage II, the power channel two and Power House II was constructed. All three generators were installed at PH II along with two more at PH I by 1963. Between 1982 and 1990, the seventh and final generator was installed at PH I.
Purpose
In the upper drainage basin of the Mahanadi River, centered on the Chattisgarh Plain, periodic droughts contrast with the situation in the lower delta region where floods may damage crops. The dam was constructed to help alleviate these problems by creating a reservoir and controlling river flow through the drainage system. The dam regulates the flow of the Mahanadi River and produces hydroelectricity through several hydroelectric plants.The dam helps control floods in the Mahanadi delta and irrigates 75,000 square kilometres of land. Hydroelectricity is also generated. The Hirakud Dam regulates 83,400 km² (32,200 mi²) of Mahanadi's drainage. The reservoir has a storage capacity of 5.818 km³ with gross of 8.136 km³.
It drains an area of 133,090 km², more than twice the area of Sri Lanka
Sri Lanka
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka is a country off the southern coast of the Indian subcontinent. Known until 1972 as Ceylon , Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar and the Palk Strait, and lies in the vicinity of India and the...
. The amount of earth, concrete and masonry materials used to build the dam is sufficient to make a road 8 metres wide and pave it from Kanyakumari
Kanyakumari District
Kanyakumari District ) is a district of Tamil Nadu state, India and is the southernmost land area of mainland India.The district is the second most urbanised district in Tamilnadu, next only to Chennai and ahead of Coimbatore. It also has the highest literacy and education levels in the...
to Kashmir
Kashmir
Kashmir is the northwestern region of the Indian subcontinent. Until the mid-19th century, the term Kashmir geographically denoted only the valley between the Great Himalayas and the Pir Panjal mountain range...
and from Amritsar
Amritsar
Amritsar is a city in the northern part of India and is the administrative headquarters of Amritsar district in the state of Punjab, India. The 2001 Indian census reported the population of the city to be over 1,500,000, with that of the entire district numbering 3,695,077...
to Dibrugarh
Dibrugarh
Dibrugarh is the headquarters of Dibrugarh district, Assam, India, and is the second largest city in Assam after Guwahati. It is situated on the banks of the Brahmaputra River, about north-east of Guwahati. It is the gateway to the three tea-producing districts of Tinsukia, Dibrugarh, and Sibsagar...
in Assam
Assam
Assam , also, rarely, Assam Valley and formerly the Assam Province , is a northeastern state of India and is one of the most culturally and geographically distinct regions of the country...
. With successful irrigation provided by the dam, Sambalpur is called the rice bowl of Orissa
Orissa
Orissa , officially Odisha since Nov 2011, is a state of India, located on the east coast of India, by the Bay of Bengal. It is the modern name of the ancient nation of Kalinga, which was invaded by the Maurya Emperor Ashoka in 261 BC. The modern state of Orissa was established on 1 April...
. Here photography is strictly prohibited.
The project provides 1,556 km² of kharif and 1,084 km² of rabi
Rabi crop
Different crops have different requirements for their proper growth , as they grow in different season . Based on the season in which they grow , crops are categorised as:-1.rabi crops2.kharif crops...
irrigation in districts of Sambalpur, Bargarh
Bargarh
Bargarh, is a town and a municipality in Bargarh district in the state of Orissa, India. It is the administrative headquarters of Bargarh District.- Geography :...
, Bolangir, and Subarnpur. The water released by the power plant irrigates another 4360 km² of CCA
CCA
CCA can refer to:*ICAO callsign for Air China*California Charter Academy*California College of the Arts*California Culinary Academy*Canadian Canoe Association*Canadian Cascade Arc*Canadian Cat Association*Canadian Centre for Architecture...
in Mahanadi delta. The dam can generate up to 307.5 MW of electrical power through its two power plants at Burla, on the dam's right bank and Chiplima, 22 km downstream from the dam. In addition, the project provides flood protection to 9500 km² of delta area in district of Cuttack
Cuttack
Cuttack is the former capital of the state of Orissa, India. It is the headquarters of Cuttack district and is located about 20 km to the north east of Bhubaneswar, the capital of Orissa. The name of the city is an anglicised form of Kataka that literally means The Fort, a reference to the...
and Puri
Puri
Puri is district headquarter, a city situated about south of state capital Bhubaneswar, on the eastern coast of the Bay of Bengal in the Indian state of Orissa. It is also known as Jagannath Puri after the Jagannath Temple . It is a holy city of the Hindus as a part of the Char Dham pilgrimages...
.
Chiplima has gained prominence as the second hydroelectric project of the Hirakud Dam. A natural fall of 80 to 120 feet (25 to 40 m) in the river Mahanadi is used to generate electricity. The place is mostly inhabited by fisherman, whose deity ghanteswari is very popular in the neighbouring area. The State Livestock Breeding Farm and Agricultural Farm are located here.
People affected by the dam construction
The main purpose of the Hirakud Dam was to check the massive flood that was effecting a large part of coastal Orissa. But construction of the dam greatly affected the native of western part of Orissa. Nearly 150,000 people were affected by the Hirakud project. Nearly 22,000 family were displaced by the dam project.In the original estimate, an amount of Rs 12 crores was provided for payment of compensation to the affected people. After revision, the amount was reduced to Rs 9.5 crores and the total compensation paid to the people was, in reality, only Rs 3.32 crores. A large number of families were evacuated from their hearth and homes without compensation from 1956 onwards.
Cattle Island
Cattle Island is located in one of the extreme points of Hirakud Reservoir, a natural wonder. Completely inhabited by wild cattleCattle
Cattle are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bos primigenius...
, with out any trace of humans. It is near Kumarbandh village of Belpahar-Banharpali range which is about 90 km from Sambalpur
Sambalpur
Sambalpur is a city in Sambalpur district in the Indian state of Orissa.It lies at a distance of 321 km from the state capital Bhubaneswar. In the year 1876, Sambalpur was established as a municipality. It is currently the headquarters and the largest city of Sambalpur district. It is also...
. It can be reached by launch
Launch (boat)
A launch in contemporary usage refers to a large motorboat. The name originally referred to the largest boat carried by a warship. The etymology of the word is given as Portuguese lancha "barge", from Malay lancha, lancharan, "boat," from lanchar "velocity without effort," "action of gliding...
from Hirakud Dam, it is closer by 10 km via the river. The island is a submerged hill, and before the construction of Hirakud Dam it was a developed village. During the resettlement period, villagers left some of their cattle behind; when the dam construction was over, the cattle settled on the hilltop. With the passage of time the nearby area filled up with the reservoir water, turning the hilltop into an island. Being away from mankind, the cattle are now wild, very swift and not easily caught. Living on a hilltop with dense forest, they are larger than tame cattle, almost all of which are white in colour. Nearby residents attempt to capture these animals from time to time, but these hunts are rarely successful. Though descended from tame cattle, these animals provide a contrasting picture of this breed of animal returning to life in the wild.
Wildlife
The dam with the channel provides an ideal environment for the wildlife. The Debrigarh wildlife sanctuary is located here. Several species of migratory birds visit the reservoir during winter. Nearly 20-25 species of birds are seen in the reservoir and common among them are Common Pochard, Red-crested PochardRed-crested Pochard
The Red-crested Pochard is a large diving duck.Their breeding habitat is lowland marshes and lakes in southern Europe and southern and central Asia. They are somewhat migratory, and northern birds winter further south and into north Africa.The adult male is unmistakable. It has a rounded orange...
, Great Crested Grebe
Great Crested Grebe
The Great Crested Grebe is a member of the grebe family of water birds.- Description :The Great Crested Grebe is long with a wingspan. It is an excellent swimmer and diver, and pursues its fish prey underwater. The adults are unmistakable in summer with head and neck decorations...
and several others.