Abstract
Studies carried out in Saudi Arabia have shown that, the hot climate and salt contaminated environment lead to premature loss of durability for many reinforced concrete highway bridges, caused primarily by corrosion of reinforcement. This paper presents a case study for three of these bridges. In the first one conventional repairs have been carried out, whereas in the other two bridges cathodic protection systems have been installed on the substructure of one of them and superstructure of the other one. The performance of these systems under the prevailing environment conditions is thoroughly evaluated. (A)