The Arthur Laing Bridge connects the City of Vancouver with the Vancouver International Airport, and was opened in 1976. After only about six years in service the bridge began to develop symptoms of deterioration due to corrosion of the deck reinforcement. A major rehabilitation program was implemented in 1987, which included the installation of an impressed current cathodic protection (ICCP) system on about 45% of the 23,541 m2 deck. The cathodic protection (CP) system has effectively controlled the corrosion for almost 30 years and has resulted in a substantial reduction in the need for maintenance and rehabilitation during that time. In 2014 a comprehensive condition survey was completed and found the deck to be in relatively good condition. This paper will describe the design, implementation, operation, maintenance, and performance of the CP system after almost 30 years in service.
