Dams built upstream may reduce spring flooding, and reduce sediment accretion, and may therefore lead to saltwater intrusion in coastal wetlands.

Dams also cause less obvious, but potentially serious consequences, including increased evaporation of water ( especially in arid regions ), build up of silt behind the dam, and changes to water temperature and flow patterns.

The river is also potentially valuable for hydroelectric power, and the Inga Dams below Pool Malebo are first to exploit the Congo river.

Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees ( also known as dikes ) are used to manage or prevent water flow into specific land regions.

The Report of the World Commission on Dams also includes in the large category, dams, such as barrages, which are between 5 and 15 meters high with a reservoir capacity of more than 3 million cubic meters.

* Stalker Wheel also known as Three-Square Dams

The World Commission on Dams report also raised doubts about the amount of power which the dam can produce.

There had been a significant campaign for voters to write " No Dams " on their ballot papers, and in total more than 33 % of voters did this ; these were initially all counted in the informal vote, but some were later recounted as formal as they also included a valid vote for one of the two dam options.

He also designed the Cataract and Burrinjuck Dams.

Dams were built along the Concord River to increase crop production and also to provide a source of power for operating mills.

Last Mountain Lake, also known as Long Lake, the largest natural lake in southern Saskatchewan ( Lake Diefenbaker is larger but is a reservoir behind the Gardiner and Qu ' Appelle River Dams ), drains into the Qu ' Appelle near the town of Craven, through Lanigan Creek.

Pine, planted between Rhodes and Mare Dams, also spread.

Dams were also constructed on the Mayo river.

Dams and weirs block migration and also block floods and reduce base flows, both of which are important for habitat maintenance and for spawning and movement of grayling larvae and juveniles to and from the sea.

Dams have also long been used for irrigation.

Lada are also currently a major sponsor of the Dams GP2 Team, competing in the 2010 GP2 World Championship.

Hairs consistent with the van Dams ’ dog were found in his RV, also carpet fibers consistent with Danielle ’ s bedroom carpet.

As a founder of Danube Circle, he also had a significant role in environmental protection issues like preventing the construction of the Gabčíkovo-Nagymaros Dams which, according to the Danube Circle, would have damaged the habitat of a northern part of the Danube.

Dams and weirs also diminish or completely remove flood events required for effective breeding of adult bass and effective recruitment of juvenile Australian bass.

Dams ( female llamas ) do not lick off their babies, as they have an attached tongue which does not reach outside of the mouth more than half an inch ().

And told the jury that scientific testimony from bug experts would prove it was " impossible " for Westerfield to have dumped Danielle's body, and that no trace of him was found in the van Dams ' house.

On the evening of 22 June, Laura became aware of plans for a surprise American attack on British troops led by Lieutenant James FitzGibbon at Beaver Dams, which would have furthered American control in the Niagara Peninsula.

Dams in Kanke, Rukka and Hatia have been built over these channels to cater to the water requirements of majority the population.

Dams have been built on the Middle and Upper Geum to facilitate water for agriculture and industry.

However, the ladder appears to have been unsuccessful: a report from the World Commission on Dams found that of 265 fish species previously found in the Mun river, at least 50 had disappeared and numbers of others had declined significantly.

Dams in particular have upset patterns of sediment transport and deposition.

Dams have been shown to have an adverse impact on the water bugs of rivers.

Dams and other water control measures have been introduced to help reduce the impact of seasonal flooding in the watershed.

Dams, power plants and diversions of the Kootenay River, of which there are many, have been built for a variety of reasons throughout the 19th and 20th centuries.

Early on 24 June, the Americans climbed what locals have always called " the mountain " at St. David's, and proceeded along the Mountain Road leading to the Beaver Dams settlement.

Had Beaver Dams been made a national parkland in 1914, it would have been the first battlefield within a national park system in either country.

Lake Gulliver and the Mare, Udu, Purdon and Rhodes Dams have been stocked with trout from hatcheries maintained by the Department of National Parks.

Five dams have been constructed for recreation and tourist water supply: Rhodes Dam and Mare Dam on the Mare River, Lake Gulliver and Purdon Dams on tributaries of the Mare River and Udu Dam on a tributary of the Nyangombe River.

Dams have created a man-made habitat for birds and aquatic species.

In recent years, shad counts at Bonneville and The Dalles Dams have ranged from over two million to over five million fish per year.

Dams have been proposed to be built on the river to control flows, but these plans have largely stalled because of the river's unique free-flowing status.

Dams have been built since the Middle Ages to prevent flooding.

Point Carbon has reported on an inconsistent approach with regard to some hydro-electric projects as carbon offsets ; some countries in the EU are not allowing large projects into the EU ETS, because of their environmental impacts, even though they have been individually approved by the UNFCCC and World Commission on Dams.

The reservoirs both have Dams controlling flow of the Tippecanoe River into them.

Ongoing Gabčíkovo-Nagymaros Dams dispute with Slovakia

Rapid City's location on the boundary of the Western and Eastern power grids, together with the hydroelectric plants of the Mainstem Dams on the Missouri River and the large coal fields and power plants of the Powder River Basin of Wyoming make it one of the points where the two national power grids connect with each other, allowing switching of electrical power from east to west and vice versa.

Rapid City's location on the boundary of the Western and Eastern power grids, together with the hydroelectric plants of the Mainstem Dams on the Missouri River and the large coal fields and power plants of the Powder River Basin of Wyoming make it one of the points where the two national power grids connect with each other, allowing switching of electrical power from east to west and vice versa.

Quogue Dam, as well as both Lower and Upper Aetna Lake Dams failed, with high water levels on portions of Ballinger Run exceeeding 500-year flood elevations

A small British force and a larger contingent of Mohawk warriors were then readied for the American attack with the result that most of the American forces were casualties or taken prisoner in the ensuing Battle of Beaver Dams on 24 June.

Following the hill down into Sheffield, it passes the New Norfolk Arms on the left, with the Rivelin Dams on the right with the Rivelin Rocks high on the left, and leaves the Peak District National Park.

This led to the Battle of Beaver Dams near present day Thorold, Ontario, where FitzGibbon's force, together with about 400 Mohawk and Odawa warriors, defeated the Americans and took 462 prisoners.

By 1904, with construction of the Elan dams complete, many of the navvies moved on to build the Derwent Dams in Derbyshire.

During the Franklin River ' No Dams ' campaign it was common for members of families to be in conflict with one another by being aligned with the HEC proposals or the Conservationists.

Dams were built in 1912 and 1941 to supply the town with hydro-electric power.

Although Beaver Dams was not made a national park, discussion of the proposal — along with the ad hoc creation of Fort Anne National Park in 1917 — helped highlight the need for a coherent heritage policy, prompting the Interior minister to ask J. B. Harkin of the Parks Branch to develop one.

The new dam was recognized by the U. S. Society on Dams with its " Award of Excellence in the Constructed Project ".

Dams continued to be constructed in the 1940s and 1950s on the Yaqui River and its tributaries with the largest reservoir, behind the Oviachic dam, completed in 1952.

Dams were built where the reservoir's edge was proposed to be, sea water was drained out and replaced with fresh water.

After going to work with the World Commission on Dams at Cape Town, South Africa in August 1998, Saneeya met Luis P. Ferraz, the Brazilian geographer whom she interviewed for a project.