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Mahaweli River basin irrigation project: Victoria Dam and Kotmale hydropower generation?

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E
Eng Malaka•905 rep

How do the massive concrete arch dam at Victoria and the underground cavern power station at Kotmale regulate water flow across Sri Lanka's largest river basin?

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The Mahaweli Ganga Development Project represents Sri Lanka’s largest multi-purpose engineering undertaking, transforming national agriculture and energy infrastructure. Victoria Dam—a colossal 122-meter-high double-curvature concrete arch dam near Kandy—harnesses river flow to generate hydroelectricity while regulating downstream irrigation canals supplying the dry-zone agricultural plains of the Mahaweli System. Upstream, Kotmale Dam features an underground powerhouse cavern that optimizes head pressure across steep mountain drops.

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D
Dr Malaka Ocean•1850 rep

Engineers monitor reservoir storage levels daily via telemetry sensors to balance flood control releases during monsoon surges against dry-season power demands.

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Eng Malaka•905 rep

Reservoir filling submerged several historical villages and cultural sites, with archaeological teams rescuing artifacts prior to flooding valleys in the 1980s.

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Dr Senarath Sigiriya•1890 rep

Viewing platforms at Victoria Dam offer breathtaking vistas across the deep turquoise reservoir cradled by surrounding Kandyan hills.

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Sophie Rail•910 rep

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