At the same time, more advanced tools for control and safety have been introduced, such as radar and satellite monitoring, making it possible to detect millimetre-scale movements in numerous US dams.<\/p>\n
A study presented at the annual meeting of the American Geophysical Union and reported on 2 January by the Washington Post<\/a> showed how technologies such as InSAR (Interferometric Synthetic Aperture Radar) can detect subtle but persistent deformations, providing a valuable early-warning system.<\/p>\n The research, which analyses 41 large hydroelectric dams in 13 states, cites, among others, the Livingston Dam in Texas, a structure more than four kilometres long classified as high-hazard, where satellite data indicate vertical movements of a few millimetres per year. Added to this is the Roanoke Rapids Dam in North Carolina, where differential settlement phenomena have been observed.<\/p>\n The researchers stress that such measurements do not imply an imminent danger, but represent useful signals to guide in-depth inspections and targeted interventions.<\/p>\n This is also because new standards are now emerging worldwide. The focus is no longer solely, or primarily, on the design and construction of a dam and, once built, its maintenance. Attention has shifted to the overall and long-term reliability of the infrastructure, starting with the individual materials used<\/a>, monitoring technologies, the protection of the public interest, the anticipation and management of emergencies, and extending to the enhancement of benefits for the communities concerned.<\/p>\n","protected":false},"excerpt":{"rendered":"At the same time, more advanced tools for control and safety have been introduced, such as radar and…\n","protected":false},"author":2,"featured_media":22747,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[65],"class_list":{"0":"post-22746","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-ethiopia","8":"tag-ethiopia"},"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/posts\/22746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/comments?post=22746"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/posts\/22746\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/media\/22747"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/media?parent=22746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/categories?post=22746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/africa\/wp-json\/wp\/v2\/tags?post=22746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}