The Kakhovka dam was built in the 1950s, in the middle of the Soviet period. It was destroyed on 6 June 2023 as a result of the ongoing conflict. The dam is now located in the province (oblast) of Kherson, in the town of Nova Kakhovka in Ukraine, and is a source of water and electricity for the large population of the towns it serves, including Crimea.
Link to the Google location https://www.google.com/maps/@46.8710501,32.8890338,101054m/data=!3m2!1e3!4b1!4m2!21m1!1s%2Fg%2F11sv9klq4g?entry=ttu
There are numerous reports and pieces of information about the ongoing disaster, still confused in these first, frantic hours. Among the most authoritative is that of the Secretary-General of the United Nations, António Guterres. According to him, and we quote verbatim from the press conference given in New York on 6 June 2023, this is “a humanitarian, economic and ecological catastrophe”. (We give you the source here.)