About 213,000 results
Open links in new tab
  1. Oahe Downstream Recreation Area - South Dakota

    The Corps of Engineers began building the Oahe Dam in 1948 and in 1962 started generating electricity. It's one of the largest constructed reservoirs in the United States, measuring 231 miles connecting …

  2. Dam | Definition, History, Types, Environmental Impacts, Examples ...

    Apr 23, 2026 · 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 use in industrial …

  3. Dam - Wikipedia

    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 specific land regions. …

  4. Dams - National Geographic Society

    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.

  5. US Dams Interactive Map: Comprehensive Guide to America’s Water ...

    Sep 20, 2025 · Discover the complete landscape of America’s critical water infrastructure with our comprehensive interactive map featuring over 92000+ dams across all 50 states.

  6. National Inventory of Dams - FEMA.gov

    Oct 22, 2025 · The database contains information about a dam’s location, type, size, purpose, uses and benefits, date of last inspection, other structural and geographical information and much more.

  7. Dams 101 | Association of State Dam Safety

    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 …

  8. The Ultimate Guide To Dams Understanding The Different Types And …

    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. Dams serve …

  9. What Are Dams? Functions, Types, Environmental Impact, and Future …

    A dam is a barrier built across rivers, streams, or other water bodies to regulate or store water. They serve purposes like irrigation, hydroelectric power generation, flood control, water supply, and …

  10. Dam - New World Encyclopedia

    A dam is a barrier across flowing water that obstructs, directs, or slows the flow, often creating a reservoir, lake, or impoundment. In Australian and South African English, the word dam may refer to …