Question

what are limination of construction of dam?
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Answer 1

Dams do not live forever. A dead or dying dam may have silted up, stopped producing electricity, or become increasingly unsafe, at which point it may be a candidate for removal. Not all dams slated for removal are targeted for safety reasons, however: another major reason prompting activists to call for the removal of dams is the decimation of fisheries.

Although dams have been found unsafe or destructive of fish habitat in many parts of the world, few major dams have yet to be removed. The engineering of dam removal is still young and untried, and the cost of dam-removal is still ignored when construction costs are estimated. How exactly to dismantle a very large dam, what to do with the sediment clogging the reservoir behind it, and how much such an operation would cost, is largely unknown. Removing a hydrodam could even cost more than building one, especially where reservoir sediments contain heavy metals and other toxic contaminants.

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Answer 2

Hey!

Limitations of construction of Dams:

1. Dams are extremely expensive to build.
2. Dams displace tribals from their habitat.
3. Sometimes dams cause flood.
4. Building of large dams alter the natural flow of water.
5. Dams submerge Vegetation on their construction sites.

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