Photo by Katelyn Noland | U.S. Army Corps of Engineers Headquarters | 11.26.2021
There are several types of dams commonly found in the U.S. These dams differ in a few ways – the material they are made of, the way they hold or direct water, and their purpose. A gravity dam is a concrete dam with a triangular cross-section that is constructed straight across a wide valley. The most common kind of concrete dam, it uses its own weight to resist the force exerted on it by the......