{"id":18156,"date":"2016-03-29T07:42:11","date_gmt":"2016-03-29T07:42:11","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/?p=18156"},"modified":"2016-03-29T14:00:34","modified_gmt":"2016-03-29T14:00:34","slug":"sparmos-dam-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2016\/03\/29\/sparmos-dam-1\/","title":{"rendered":"Sparmos Dam &#8211; a significant dam failure in Greece on Sunday 27th March"},"content":{"rendered":"<h5>Sparmos Dam &#8211; a significant dam failure in Greece on Sunday 27th March<\/h5>\n<p>In Elassona, Greece the Sparmos Dam overtopped and breached in the afternoon of Sunday 27th March. <a href=\"http:\/\/geotechpedia.com\/News\/Show\/549\/Huge-disaster-in-Mount-Olympus--Greece-Sparmos-Dam-Failure\">Geotechpedia has a short article with some images<\/a>.\u00a0 There is a better set of images on the <a href=\"http:\/\/www.michanikos.gr\/_\/%CE%95%CE%B9%CE%B4%CE%AE%CF%83%CE%B5%CE%B9%CF%82\/%CE%AD%CF%81%CE%B3%CE%B1-%CF%85%CF%80%CE%BF%CE%B4%CE%BF%CE%BC%CE%AD%CF%82\/%CE%9C%CE%B5%CE%B3%CE%AC%CE%BB%CE%B7-%CE%BA%CE%B1%CF%84%CE%B1%CF%83%CF%84%CF%81%CE%BF%CF%86%CE%AE-%CF%83%CF%84%CE%BF%CE%BD-%CE%8C%CE%BB%CF%85%CE%BC%CF%80%CE%BF-%CE%88%CF%83%CF%80%CE%B1%CF%83%CE%B5-%CF%84%CE%BF-%CF%86%CF%81%CE%AC%CE%B3%CE%BC%CE%B1-r4275\">Michanikos.gr website<\/a>.\u00a0 An edited Google translation of the description is as follows:<\/p>\n<blockquote><p><span class=\"notranslate\">Thousands cubic meters of water poured onto the plain of Elassona, destroying roads and fields with crops when the Sparmos dam broke on Sunday.\u00a0 <\/span><span class=\"notranslate\">The surge of water, indeed, was such that it even dismantled the pavement.<\/span><\/p><\/blockquote>\n<p>The breach in the dam itself is quite dramatic:<\/p>\n<div id=\"attachment_18160\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-18160\" class=\"size-full wp-image-18160\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/03\/16_03-Sparmos-1-e1459236287542.jpg\" alt=\"Sparmos Dam breach\" width=\"640\" height=\"424\" \/><p id=\"caption-attachment-18160\" class=\"wp-caption-text\">An overview of the Sparmos Dam breach in Greece via <a href=\"http:\/\/www.michanikos.gr\/_\/%CE%95%CE%B9%CE%B4%CE%AE%CF%83%CE%B5%CE%B9%CF%82\/%CE%AD%CF%81%CE%B3%CE%B1-%CF%85%CF%80%CE%BF%CE%B4%CE%BF%CE%BC%CE%AD%CF%82\/%CE%9C%CE%B5%CE%B3%CE%AC%CE%BB%CE%B7-%CE%BA%CE%B1%CF%84%CE%B1%CF%83%CF%84%CF%81%CE%BF%CF%86%CE%AE-%CF%83%CF%84%CE%BF%CE%BD-%CE%8C%CE%BB%CF%85%CE%BC%CF%80%CE%BF-%CE%88%CF%83%CF%80%CE%B1%CF%83%CE%B5-%CF%84%CE%BF-%CF%86%CF%81%CE%AC%CE%B3%CE%BC%CE%B1-r4275\">Michanikos.gr<\/a><\/p><\/div>\n<p>.<\/p>\n<p>Fortunately downstream damage appears to be light.\u00a0 Note the shallow landslide on the inner face of the dam wall, on the right side of the embankment.\u00a0 I suspect that this is a drawdown landslide, triggered by imbalanced high pore water pressures in the embankment when the water level rapidly dropped.\u00a0 Michanikos.gr also has a close up of the breach itself:<\/p>\n<div id=\"attachment_18163\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-18163\" class=\"size-full wp-image-18163\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/03\/16_03-Sparmos-2-e1459236550878.jpg\" alt=\"parmos Dam Breach\" width=\"640\" height=\"436\" \/><p id=\"caption-attachment-18163\" class=\"wp-caption-text\">Detail of the Sparmos Dam Breach via <a href=\"http:\/\/www.michanikos.gr\/_\/%CE%95%CE%B9%CE%B4%CE%AE%CF%83%CE%B5%CE%B9%CF%82\/%CE%AD%CF%81%CE%B3%CE%B1-%CF%85%CF%80%CE%BF%CE%B4%CE%BF%CE%BC%CE%AD%CF%82\/%CE%9C%CE%B5%CE%B3%CE%AC%CE%BB%CE%B7-%CE%BA%CE%B1%CF%84%CE%B1%CF%83%CF%84%CF%81%CE%BF%CF%86%CE%AE-%CF%83%CF%84%CE%BF%CE%BD-%CE%8C%CE%BB%CF%85%CE%BC%CF%80%CE%BF-%CE%88%CF%83%CF%80%CE%B1%CF%83%CE%B5-%CF%84%CE%BF-%CF%86%CF%81%CE%AC%CE%B3%CE%BC%CE%B1-r4275\">Michaikos.gr<\/a><\/p><\/div>\n<p>It seems fortunate that the damage was not more serious.\u00a0 <a href=\"http:\/\/www.ert.gr\/larisa-apo-eftichima-den-thrinisame-thimata\/\">EPT reports<\/a> (in Greek) that there are plans to rebuild the damaged portion of the dam to restore its capability to store water.\u00a0 It seems important to understand first how the overtopping event occurred.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>On Sunday 28th March 2016 the Sparmos Dam in Greece underwent an overtopping and breach event, damaging local fields and roads<!-- AddThis Advanced Settings generic via filter on wp_trim_excerpt --><!-- AddThis Share Buttons generic via filter on wp_trim_excerpt --><\/p>\n","protected":false},"author":22,"featured_media":18160,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[691],"tags":[79,71,76,144,469,857],"class_list":["post-18156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oddities","tag-breach","tag-dam","tag-dam-failure","tag-europe","tag-featured","tag-greece"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/18156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/comments?post=18156"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/18156\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/18160"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=18156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=18156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=18156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}