In recent years increased service life and structural monitoring requirements are often specified for major bridges which will be built in a marine environment. Previously different measures were considered to improve the durability for these new structures. These included the modification of concrete mix design; an increase in the cover to reinforcement; application of protective coatings; use of corrosion resistant reinforcement and the use of corrosion inhibitors. A relatively new approach is an application of cathodic prevention during construction in conjunction with a structural health monitoring systems in order to provide information related to the structural behaviour of the structures during the construction period and under service conditions and to provide actual corrosion prevention for the service life of the structure. This paper will present a case study for a cathodic prevention system for a bridge structure and it will highlight a new concept for future intelligent structures that incorporate a structural health monitoring system as well as corrosion prevention technologies.