The dewatering “centrale idrovora di Mondine” in Moglia (MN) had substantial damage following the earthquake of Emilia Romagna in May 2012. Single and double flat jack tests, tests by covermeter, pull-out tests, coring tests on concrete and carbonation tests on cores extracted and sampling of steel bars to determine the tensile strength in laboratory were carried out for the knowledge of the structure and to implement the most appropriate repairs.