Dams

Short answer- both. Dams can interfere with the migration of fish, and cuase rivers to silt up. However, dams are also used to control flooding, supply water and power.

Hirakud Dam (Oriya: ହୀରାକୁଦ ବନ୍ଧ) 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.[1] 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. (Source with thanks to wikipedia)

sir m vishveshwaryai bharath ratna

In very round numbers, the pressure at the surface of the water due to the atmosphere above it

is 14.7 pounds per square inch, or about 100 kPa, and it increases by that amount with each

additional 10 meters of depth. So at the depth of 200 meters, the total is the pressure of the

atmosphere plus 20 times as much additional, or roughly 309 pounds per square inch (2100 kPa).

Notice that it doesn't matter whether you're talking about the bottom of Hoover Dam or the bottom

of a 200-meter soda-straw. The length and width of the pool are irrelevant. The only dimension that

contributes to the pressure is the depth.

thats actually my question

Hoover Dam is what is called an arch-gravity dam. The name curved-gravity dam or arched dam might also be applied. This type of dam uses a curve or arch which has it's apex or "top" directed ''against'' the force of the water it is retaining. This sets up a condition wherein the water will compress the dam against the sides to which it is anchored. Less material fill is required to hold this dam in place compared to a simple gravity dam. Use the link below to learn more. Another link will show lots of images of this and other dams of the same type.

it's in the desert, so hot and dry

Flax is a plant with blue flowers and a flax dam is not really a dam but a pool where bundles of flax (flowers) are placed

The itaipu dam was important because people had to discover the nature of land.

9

Changing the course of rivers for energy purposes or to reserve water.

Yes, in fact the people that work there discovered a little crack in September 2009. And scientists predicted that it was going to break(fall down) October 17 2009.

It really depends on how big you want the auditorium to be. I would say about in the 750,000 dollar range just for lights sound and seating. And that's in the low price range.

Beavers and humans build dams. Beavers build low dams with sticks,
branches, and mud. Humans use earth, rock, and concrete to build very high
dams. Beavers build a stick lodge right next to their dam. Humans build a
hydroelectric plant next to their dams. The dam and lodge protect the beaver
from its predators. Human dams protect people from floods and provide
water for irrigation. ........................
your welcome ;)

You can build a fish ladder.

i think it cost 10 millions:-)

slower because less water is exposed to the heat, the cause of evaporation.

A water reservoir is like a big storage or where water is kept quanityy for use By Lexi MI Under 15yrs A water reservoir is like a big storage or where water is kept quanity for use By Lexi MI Under 15yrs

The longest river contained in one state is the Salmon in Idaho at 425 miles. It is also the longest that flows north, and the longest river that is within one state with no standing dams. "Sunbeam dam" is no longer blocking the full river. James Seeger Anchor Point and Prudhoe Bay Alaska. Formally of North Fork Idaho (junction of the Salmon and North Fork of the Salmon)

MULTIPURPOSE RIVER VALLEY PROJECTS IN INDIA

1. Bhakhra Nangal Project = Punjab, Harayana, Rajasthan

- > Its a joint venture of Punjab, Harayana, Rajasthan.

- > Its is India's biggest multi-purpose river valley project so far completed at a cost of Rs.236 Cr.

- > It consists of a straight gravity dam, 518 mts long & 226 mts high across the Sutlej at Bhakhra.

- > The Bhakhra dam impounds 986.8 Cr cubic mts of water.

- > The canal system of the project is now irrigating 14.8 lakh hectares.

- > It generates 1204 MW electricity.

2. Chambal Project = Madhya Pradesh, Rajasthan

- > The Chambal project being jointly executed by M.P & Rajasthan.

- > In the 1st stage, the Gandhi Sagar dam & its 115 MW power station & the Kota barrage were completed.

- > The Rana Pratap Sagar dam with a power house of 172 MW capacity was constructed in the 2nd stage.

- > The 3rd stage comprises the construction of the Jawahar Sagar dam & 99 MW power station.

- > With the completion of all the stages, the project will generate 386MW of power.

3.Damodar Valley Project = Jharkhand , West Bengal

- > This project conceived for the unified development of irrigation, flood control & power generation in W.B & Jharkhand.

- > The project is administered by the Damodar Valley Corporation established in 1948.

- > The irrigation potential of the project is about 5.51 lakh hectares & its installed power generation capacity is 1181MW.

- > It is designed on the lines of Tennesse Valley Authority in the USA.

4. Farakka Barrage = West Bengal

- > It consists of a barrage across the Ganaga at Farakka, another barrage at Jangipur across the Bhagirathi, a 39 km long feeder canal taking off from the right bank of the Ganga, at Farakka & tailing into the Bhagirathi below the Jangipur Barrage .

- > road - cum - rail bridge over the Farakka barrage have already been completed.

The basic Aim of Farakka barrage is to preserve & mountain Calcutta port & to improve the navigatability of the Hooghly river.

- > Farakka is to use 40,000 cusecs of Waterout of water stored in the dam to flush the Calcutta port which is get silted up.

5. Indira Gandhi Canal

- > It is one of the biggest irrigation project in the world.

- > began in 1958 as Rajasthan Canal.

- > it will provide irrigation facility to N.W region of Rajasthan a part of Thar desert.

- > The project which the use water from the Pong dam consists of 215 km long Rajasthan feeder canal & 445 km long Rajasthan main canal lying entirely in Rajasthan.

- > The project will ultimately irrigate about 14.5 lakh hectares.

6. Hirakud Project = Orissa

- > the 4801.2 mts long main Hirakud dam in Orissa is on the river Mahanadi.

- > its world's longest dam.

- > The project migrates irrigation an area of 11.98 lakh hectares.

- > its present installed power generation capacity is 27.2MW.

7. Kakrapura project = Gujarat

- > it is on the river Tapti, 80km upstream of surat,

- > it is being built by Gujarat government

- > a 621 mts long & 14 mts high weir near Kakrapara in Surat district was completed in 1963.

8. Koyna project = Maharashtra

- > it is on the river Koyna & has been built by the Government of Maharashtra.

- > it comproses the construction of a 208 ft. high dam

9. Nagarjuna Sagar project = Andhra pradesh

- > it is undertaking of the government of A.P. for utilizing the water of the Krishna river.

- > it was inaugurated on AUg 4 1967.

- > it is suited near Nandikonda Village in Miryalguda Taluk of Nalagonda District.

- > it is of 1450 mts long & 92 mts high dam.

- > the project will ultimately irrigate about 8.95 lakh hectares.

10. Rihand project = U.P

- > This project comprises construction of a concrete gravity dam across the Rihand river in Mirzapur district U.P. & a power house at Pipri & necessary transamission lines.

11. Thien Dam = Punjab

- > a 147 mts high dam built by the Punjab government at Thien Village acorss the Ravi 25 km. upstream of Madhopur head works.

- > it will irrigate 8 lakh hectares land & generate 600MW power renamed as Ranjit Sagar dam it was dedicated to the nation on March 4 2001 by Prime Minister Atal Behari Vajpaee.

12. Tungabhadra project = Karnataka & Andhra Pradesh

- > it is a joint undertaking by the government of A.P & Karnataka.

- > it comprises a 2441 mt long & 49.38 high dam the river Tungbhadra near Malipuram.

- > it irrigates about 10.22 hectres land.

Mullaperiyar. It is constructed across the Periyar river. Its construction started in 1887under the supervision of Benny Cook and opened in 1895 by Lord Wenlock.

The Social Science project is mainly for tehri dam and narmada bsed dams

The usual migration from the hills to the plains from the sub-mergence area, the government servants transferred from the hills, and the Tehri Hydro Development Corporation (THDC) employees has all been shown as the uprooted and rehabilitated people. Besides all the expenses on government office buildings have been shown as expenses on rehabilitation till sheds were erected at Koti colony at a cost of Rs. 1 crore. The employees of the JP Company are living in these sheds, though these were meant for the uprooted people. This expense was charged to the rehabilitation budget. The employees of the company are using hundreds of flats though these were charged to the rehabilitation budget. There should be an investigation into the savings to the company in housing allowances and the revenue earned to the directorate of rehabilitation from the sale of shops and flats. Only last year the directorate sold shops and flats amounting to Rs. 3 crores. In the 11 years from 1990 to 2000 the rehabilitation work was with the water development corporation and it has earned revenue worth crores of rupees. It needs to be told where the amount has been spent. The corporation disowns it's own orders in this respect. These orders had laid down that constructed houses at appropriate places would be provided to the families whose houses have been or will be acquired. Cost of construction and the cost of land of these houses were to be charged to the scheme for which the land would be acquired.

The most harassed are the original residents of the area of submergence who did not receive either proper compensation or proper residence and who are even today not in a position to go anywhere else.

The history of the dam tells us that its costs doubled every 6 years, but the rehabilitation budget is stationary. The Bungalow constructed for the district magistrate has claimed Rs. 47 lakh till date and the Bungalow for the Superintendent of Police Rs. 43 lakhs..... By Kailash Jordan (kv No1)

Olympia is the capital city of the U.S. state of Washington.

Yes. It was authorized as a Public Works Administration project in 1933.

ITS IS BOTH AND IT Depends on who is selling and buyin (:((:(::((:(:(:(::((:(::((:(:(::(:(:(:(:(:(:(:(:((::(::((::::::(:((:(:((:(:((((:(:):)::)):):):):):)::):):):):):)::)):):):):):):):):):):):):):):):