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11 June 2018

Hidroituango – continued small landslides, and proposals for a way forward

Yesterday a small landslide at the Hidroituango dam site led to the evacuation of some of the workers on the site. Operations continue to manage the situation whilst waiting for the end of the rainy season, and an expected fall in the river level

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6 June 2018

Hidroituango: the potential for extremely large landslides?

News reports from Colombia say that an American technical report (possibly by USACE) suggests that landslides of up to 40 million cubic metres are possible at Hidroituango. As the report is not publicly available it is hard to know how to interpret these reports

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5 June 2018

Hidroituango – an increase in movement rate

Reports in the last few hours suggest that the landslide at the Hidroituango dam site has accelerated, and has now exceeded the 10 mm per hour warning threshold. Meanwhile, three scenarios for failure of the dam have been described by the international advisors.

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4 June 2018

Hidroituango – continued slope movements and low volume seepage from the dam

In the last 24 hours there have been further developments at the Hidroituango dam site in Colombia. Monitoring suggests that movements of the slope continue, whilst concerns are being raised about low volume seepage from the dam

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3 June 2018

The Hidroituango crisis: new landslides threaten the site

In Colombia the Hidroituango crisis has deepened as new landslides have started to form close to the dam site, as shown by tension cracks in the slopes and cracks in the tunnels. The level of risk has risen, and 25,000 people are now displaced

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28 May 2018

Another landslide at the Ituango dam site in Colombia

On Saturday another landslide happened at the Ituango dam site. This was a smaller failure above a slope that has been cut and mitigated. 1500 workers were evacuated from the site, but no-one was injured. The integrity of the dam was not apparently threatened by this event.

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23 May 2018

News and satellite imagery of the Hidroituango dam site

Satellite images captured by Planet Labs shows the evolving crisis at the Hidroituango dam site. The dam crest has now reached the spillway level, meaning that control of the water should become possible. 26,000 people remain displaced

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21 May 2018

The Hidroituango crisis: complete evacuation of a number communities

The Hidroituango crisis in Colombia: a number of communities have now been evacuated, whilst operations to raise the crest of the dam continue. At the moment the situation appears to be mostly under control

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Hidroituango: another landslide crisis at a hydroelectric dam

Over the last few days, a landslide crisis has developed at the Hidroituango Dam, a hydroelectric project on the Cauca River in Colombia

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20 February 2018

First satellite images of the Puerto Venus debris flows

Parts of the track Puerto Venus debris flows in Colombia last week have been captured on satellite imagery by Planet Labs

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