What does a dam look like inside?

Inside a dam, you'll typically find a series of concrete or earthen structures designed to hold back water. There are often spillways, which are channels that allow excess water to flow safely over or around the dam. Depending on the type of dam, there may also be tunnels or sluices for water release, and sometimes large turbines if the dam generates hydroelectric power. The interiors are generally reinforced for structural integrity, with various monitoring systems to ensure safety and operational efficiency.