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Ituagno dam milestone hailed as key to stability

Empresas Públicas de Medellín has said that contractors working on the Ituango hydroelectric scheme in Colombia have achieved a 415m height on the dam structure, which is key to stability at the site.

The milestone in the dam construction will allow the spillway to be used to prevent the dam over-topping, which was feared following landslides above the impounded reservoir, which blocked a bypass tunnel, and seepage through the dam.

Work was halted on site earlier this month after ground movement accelerated but monitoring has shown the situation to have stabilised.

Residents downstream from the dam were evacuated last month and have not yet been allowed to return home over fears that the dam could fail. The height of the dam at this time was 385m.

Work is now continuing to take the dam to 418m with a view to raising the height to 435m.

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