Disputes over shared water resources have constantly resulted in various crises and numerous strategies have been adopted to control it, and transferring irrigation management is one. The process of irrigation management transfer is quite complicated, so it might be performed incompletely or some of the goals might not be accomplished. Results suggested by scientific articles and sources indicate shortcomings in the process of transferring irrigation management in the areas of using suitable evaluation methodology and selecting suitable indicators. Therefore, current endeavors must focus on the component of monitoring and evaluating the aforementioned processes. Such a measure will result in the necessary feedbacks to implement the decisions made through the present and previous endeavors aimed at transferring irrigation management. The present study was conducted aiming to examine the current issues in irrigation management transfer, identify key indicators for evaluating irrigation and drainage networks, and examine them in the Padna irrigation network of Semirom in Isfahan before and after the formation of the Water Users’ Association (WUAS) in Iran. The study has used the expanded framework of actor, responsibility, and power to evaluate decentralization effectiveness. The study’s statistical population is made up of the farmers of the Padna irrigation network as well as the respective experts and professionals. The methodology of the study is applied research and the study is descriptive-analytical due to the type of data collection. Required data were collected through interviewing stakeholders and experts. Inferential analyses were conducted using Wilcoxon and Mann-Whitney tests. Results indicated that no decentralization existed before transferring irrigation management, and all responsibilities used to be taken by the provincial water company. Power and responsibility have slightly transferred after the transfer of irrigation management, which indicates that the process of irrigation management transfer has been done imperfectly. According to results, transferring water irrigation management improves the indicators of participation, justice, trust, and accountability. The indicators of efficiency and performance have also had an increasing trend that indicates optimal water consumption. Given the importance of farmers' participation in managing irrigation and drainage networks, respective organizations are recommended to take measures towards empowering associations following a participatory water management approach with the rule of local communities to increase farmers' power and responsibility. Keywords : Participatory Water Management, Irrigation Management Transfer, Framework, Evaluation, Power, Decentralization.