Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into …

The viewer includes locations of regulated high hazard dams, modeled inundation areas, building footprints that fall within the inundation areas, and the FEMA National Flood Hazard 1% flood …

Dec 12, 2025 · dam, structure built across a stream, a river, or an estuary to retain water. Dams are built to provide water for human consumption, for irrigating arid and semiarid lands, or for …

Oct 22, 2025 · The National Inventory of Dams (NID) documents all known dams in the United States and its territories that meet certain criteria.

Jun 21, 2024 · A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.

The Falls of the Ohio are located at Louisville, Kentucky, and are the only falls in the entire length of the Ohio River. They consist of a rock reef extending across the river and forming a rapids …

Double curvature arch dam. An arch dam, which is curved vertically as well as horizontally. A dam consisting of a watertight part supported at intervals on the downstream side by a series of …

Water is one of our most precious resources; our lives depend on it. Throughout the history of humankind, people have built dams to maximize use of this vital resource. Dams provide a life …

May 30, 2025 · Dams are some of the most important and fascinating structures innovated by human civilization. They help us control water, generate energy, grow food, and protect lives.

By storing and managing water flow, dams have helped improve agriculture, urban water supply, and power generation, making them critical for economic growth and disaster prevention. …