Developing a Bridge Health Index (BHI) with a Wighted Priority Index (PI) for Maintenance Decision-Making: An Open Data-Based Approach in Korea

Bridges are a key component of transportation infrastructure, playing a critical role in socioeconomic development and public safety. In South Korea, many bridges were constructed during the nation’s economic boom in the 1970s and 1980s, meaning that the number of aging bridges with a service life of over 30 years now accounts for approximately 17% of all bridges in the country. Unfortunately, there have been instances of bridge collapses due to the lack of a proper maintenance system for these aging structures. To address this issue, a priority evaluation model called the Bridge Health Index (BHI) was developed to assess maintenance prioritization. In this study, nine actual bridges were evaluated using the proposed model, with the aim of ensuring that the maintenance and management of bridges at risk can be conducted efficiently and reliably.