Factors to be considered for damconstruction:•Geological conditions-effect the location and construction of thefoundations• rainfall and storage reservoir characteristicsof the proposed dam catchment
•local availability of earth and rock materialsand their suitability for dam construction•planning for river diversion to occur whilethe dam is being constructed
•an Environmental Impact Study-noise and dust hazards inconstruction-effects of the dam on the regionalmicro-climate
Adverse effects of dams :•Displacement of farmers and villagepeople•Do not give benefits that areprofitable, when compared to cost•Affects aquatic life•Due to stagnant water, breeding ofmosquitoes takes place.
Case Study of Maphou Dam ProjectEffects w.r.t Maphou Village-Back ground of the project-Effects of it
Failure of dams :1.Overtopping-Insufficient spillway capacity-Extreme flood exceeding design criteria2.Quality Problems-Piping in dam body,foundation,spillway3. Poor Construction
4.Disasters:-Earthquake exceeding design criteria-War and terrorist attackCASE STUDY :KADDAM PROJECT DAM - ANDRA PRADESH
Future of dams :-Due to increase in demand ofhydro-electric power, the dams playa major role in producing it-In order to meet the demand ofsurplus growth of population needslike food and water, dams has to bebuilt in the developing countries.