An Integrated GIS Methodology to Assess the Impact of Engineering Maintenance Activities: A Case Study of Dredging Projects Magaña Redondo, Pedro Javier Reyes Merlo, Miguel Ángel Tintoré Parra, Ángela Zarzuelo Romero, Carmen Ortega Sánchez, Miguel GIS integration Engineering maintenance activities Methodology Dredging Databases Cost-efficient Environmental Impact PostgreSQL We also thank the staff and researchers of the Agency of Public Works of the Andalusia Regional Government for their dedication and professionalism, and A. Lira for her help during the GIS analysis. The authors are grateful for the comments of two anonymous reviewers who have helped to significantly improve the article. Engineering infrastructures require regular maintenance and/or repair activities that have important social, environmental, and economic impacts. Despite their growing importance, few studies have focused on fully integrated analyses. This work presents a general methodological approach to design databases of engineering maintenance activities for their assessment. This methodology was applied to the case of dredging projects in the ports managed by the Andalusian Regional Government (Spain). The resulting database contains 87 fields of information obtained from the analysis of 70 activities performed between 1993 and 2015. This database is free, public, and available to the scientific community, and it was implemented in PostgreSQL using the PostGIS extension for spatial data; therefore, it can be integrated in a GIS. The assessment of deviations from the initial projects and the comparison between locations enhanced our methodology, which represents a valuable tool not only for scientists and managers to improve the decision-making process when planning future strategies, but also to evaluate the environmental impacts. 2020-06-02T10:29:40Z 2020-06-02T10:29:40Z 2020-03-10 info:eu-repo/semantics/article Magaña, P.; Reyes-Merlo, M.Á.; Tintoré, Á.; Zarzuelo, C.; Ortega-Sánchez, M. An Integrated GIS Methodology to Assess the Impact of Engineering Maintenance Activities: A Case Study of Dredging Projects. J. Mar. Sci. Eng. 2020, 8, 186. [doi:10.3390/jmse8030186] http://hdl.handle.net/10481/62327 10.3390/jmse8030186 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España MDPI