The dam construction industry in Iran has always been considered as one of the country's most important industries due to the lack of rainfall. To accomplish this, we need to properly manage the dam construction process. Traditional algorithms, such as the Critical Paths Methods (CPM) and Program Evaluation and Review Technique (PERT) have been used since ancient times to plan and control most of the projects, including dam construction projects. With traditional methods of project management, a large percentage of time and resources are often lost due to reasons such as the lack of prioritization, student syndrome, and bad multi-tasking. The Critical Chain Project Management (CCPM) is a method for project planning, with emphasis on the resources needed to carry out the project. In this research, which was done on the Kahir reservoir, the CPM method was first used and then analyzed by CCPM method. Using resource dependency, identifying and embedding project buffers and leveling resources in this study reduced the implementation time of the project for 27 days.