The historical bridge in question was built in the late 1950s last century. After more than 60 years of operation, the facility’s ongoing maintenance and safety required careful evaluation. Four EpsilonSensors were installed within the safety-critical areas, i.e. at concrete cantilevers next to the construction joints, to support engineers in optimal decision-making. The near-to-surface installation inside the groove was applied as the best solution for existing concrete structures.