The Bener Dam in Purworejo Regency is an unpleasant portrayal of the government's and local government's abilities to develop for the public good in response to the public interest development challenge. If the environmental implications of development are not taken into account, the local ecosystem will be negatively affected. This study employed both a statutory and conceptual approach to normative jurisprudential law research. According to Article 33, paragraph 3 of the Indonesian Constitution of 1945, "Earth, water, and natural resources contained therein are controlled by the state and used for the greatest prosperity of the people," Earth, water, and natural resources contained therein are used for the greatest prosperity of the people. This is the essential principle underlying development that serves the public interest, including the construction of public highways, toll roads, railroads, drinking/clean water lines, sewers, sanitation, and reservoirs. This pertains to every one of these initiatives. Even while environmental sustainability is an essential component of public-interest development, it is equally essential to consider the political, economic, and sociocultural factors that influence the environmental sustainability of a project.