Dam Pros & Cons Near The City | Dam Benefits and Drawbacks | Advantages And Disadvantages Of Dams Near City Constructing a dam near a city can have both benefits and drawbacks. Here are some of the potential advantages and disadvantages: Benefits of a dam near a city: Water Supply: One of the primary benefits of a dam is its ability to provide a reliable water supply for the city. The dam can store and regulate water, ensuring a constant and sufficient supply even during dry seasons or droughts.