An ARIS 3000 was used to inspect the substrate of a dam in Brazil, and finds extensive unexpected damage due to boulders swept downstream in the high river currents. The dam was de-watered for repair, and the exposed rebar seen in the photograph is clearly visible in the sonar image.
Watch the ARIS footage
Prof. Dr. Luis Americo Conti.
Escola de Artes, Ciências e Humanidades, EACH.
Universidade de São Paulo, Brasil