page_title: Deriner Dam
section_title: Construction
hierarchical_section_title: Deriner Dam / Construction
caption_attribution_description: English: Construction site of the Deriner Dam in the Province of Artvin, Turkey. Deutsch: Baustelle der Dernier-Talsperre in der Provinz Artvin in der Türkei
context_page_description: Deriner Dam is a concrete double-curved arch dam on the Çoruh River 5 km east of Artvin in Artvin Province, Turkey. The main purpose of the dam is hydroelectric power production and additionally flood control. Construction on the dam began in 1998, the reservoir began to fill in February 2012 and the power station was completed by February 2013. It will have a 670 MW power house and is the tallest dam in Turkey. The dam is being implemented by Turkey's State Hydraulic Works and constructed by a consortium of Turkish, Russian and Swiss companies.
  The dam is named after İbrahim Deriner, who died while serving as the Chief Engineer of its research team.
context_section_description: Construction on the Deriner Dam began in January 1998, and by the end of 2005, the Coruh River had been diverted around the construction site and the dam's foundation was excavated and prepared. The river was diverted on the right-bank by means of a 937 m (3,074 ft) horseshoe-shaped tunnel with a 11.7 m (38 ft) diameter. The foundation required extensive excavation because layers of decompressed rock existed above the sound granodiorite rock. To secure the foundation, over 2,000 re-stressable post-tensioned rock anchors were installed. At the end of 2005, workers began pouring concrete for the dam's foundation but because of funding, this was delayed between September 2006 and September 2007. By January 2008, the dam reached a height of 66 m (217 ft). By mid-2010, 2,300,000 m³ (3,000,000 cu yd) of the needed 3,400,000 m³ (4,400,000 cu yd) of concrete had been poured and 93% of the project was complete. The spillways within the dam's body were complete as well. On 24 February 2012, the dam was complete and began to impound its reservoir. The power station is expected to be operational by February 2013.
caption: The dam under construction in 2009
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