dam construction

1. Effects of dam construction
1. Fish problem: In general for reproduction purpose the old fish go to there native place in
upstream side of rivers. The newborn fishes go in downstream side. But due to construction of
these dams, old fish are not able to go upstream side. Due to this large number of fish died and it
will effect the fish market and economy of a nation. Remedy of this problem is to construct fish
ladder, which helps the fish to reach upstream.
2. Submergence problems: due to large amount of water is collected in the reservoir a large
portion of land is submerged in water. This will lead to emigration of villagers.
3. Failure Problem:
We try our best to build dams to last as long as possible. Every person whosoever has worked on
a dam hopes that the dam will live as long as the pyramids of Egypt. But many a times, the dam
give way under the continued insistent pressure of the water penned up behind them. This failure
of the dam may be caused either due to bad workmanship or due to faulty design or due to the
occurrence of unanticipated floods.
4. The Bomb Problem:
The dams create dangers in wars, especially in modern atomic age.