Sudden sinkhole at Eptevatn dam after 43 years of operation

  • E. Ødemark and K. Nilsen
  • Vol. 22 - Issue 3, 2015

The Eptevatn dam, commissioned in 1971, is a rockfill structure with supporting fill of blasted rock, filters of sandy gravel and a central core of morainic material as the impervious zone. It behaved normally until March 2014, when remote monitoring showed a significant increase in leakage through the dam, and an inspection identified a sinkhole on the upstream side at the highest section of the dam.

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Sudden sinkhole at Eptevatn dam after 43 years of operation
  • Vol. 22 - Issue 3, 2015

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