Significant maintenance costs for pipeline operation is associated with corrosion control and integrity management. The driving force for maintenance expenditures is to preserve the asset of the pipeline and to ensure safe operation without failures that may jeopardize public safety, result in product loss, or cause property and environmental damage. A recent survey of major pipeline companies indicated that the primary loss of cathodic protection was due to the following two reasons: (1) coating deterioration (30 percent) and (2) inadequate cathodic protection current (20 percent). The majority of general maintenance is associated with monitoring and repairing problems, whereas integrity management focuses on condition assessment, corrosion mitigation, life assessment, and risk modeling. With a range of corrosion operation and maintenance cost of $3,100 to $6,200 per km ($5,000 to $10,000 per mi), the total corrosion operation and maintenance cost ranges from $2.42 billion to $4.84 billion.