Bridge Engineers and maintenance personnel must often decide what to do with a bridge in order to meet More traffic projections, maintain conformance with current safety standards or otherwise keep the structure in service for decades into the future. Selecting the most technically viable and cost-effective solution for a concrete bridge structure in a corrosive environment is a formidable task. The alternatives typically span the extremes of ‘doing nothing’ to ‘complete replacement
of the structure’. Most often however, some type of corrosion
prevention.rehabilitation measure is deemed more appropriate and, in these cases, another decision regarding the specific approach to be employed needs to be made. In any case, the process has historically been arduous, with no procedures, standards, or other information available to assist in the analysis. This paper presents a scientifically based, step by step process that has evolved over the last decade for selecting a technically viable and cost-effective solution for a given bridge structure in a corrosive environment. The methodology, which includes
mathematical deterioration modeling, is illustrated through three case studies. The case studies also indicate that the new process will have a positive impact on the use of cathodic protection technology.