A Methodology for the Inventory of Historical Infrastructures: Documentation, Current State, and Influencing Factors

This study is focused on the development of a methodology for the study of historical bridges. The discussion is divided into several parts: 1) a description of a simple methodology to quickly acquire data during the inspection of historical bridges; 2) a report on the current state of 88 historical bridges located in the Galician Country; 3) a data storage system for automated diagnosis of bridges, based on criteria determined by an expert staff; and 4) an exploration of trends and other factors can be related to the conservation of these bridges. Some of the more important bridge features that were obtained in this project are the geometry, construction, pathologies and structural damage in the bridge. The data were managed using digital databases and GIS. This approach enabled focused, deep inspection for bridges with urgent problems. Finally, results are presented with the conclusion that public policies to maintain bridges have not been sufficient. In fact, conservation actions have normally been carried out only after problems are detected, so public authorities apply corrective measures instead of preventive ones.