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  1. www.britannica.com › technology › dam-engineeringDam | Definition, History, Types, Environmental Impacts ...

    Sep 4, 2024 · 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 processes.

    • The Modern Dam

      Dam - The modern dam: Most modern dams are of two basic...

    • Buttress Dams

      buttress dam, concrete dam in which the smooth upstream face...

    • Gravity Dam

      Of special interest are three concrete gravity dams that...

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  3. www.wikihow.com › Dam-a-RiverHow to Dam a River: 9 Steps (with Pictures) - wikiHow

    Jan 3, 2024 · Dams are structures designed to stop, restrict, or control the flow of water. They're often constructed in rivers in order to redirect the water for other purposes, such as farming or industrial use. Large rivers are usually dammed by...

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  5. www.nationalgeographic.org › encyclopedia › damsDams - National Geographic Society

    Jun 21, 2024 · A dam is a structure built across a river or stream to hold back water. People have used different materials to build dams over the centuries. Ancient dam builders used natural materials such as rocks or clay.

  6. en.wikipedia.org › wiki › DamDam - Wikipedia

    A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity.

  7. theconversation.com › dams-can-mimic-the-free-flowDams can mimic the free flow of rivers, but risks must be managed

    Feb 12, 2019 · But while this large dam might play a role in mitigating flood risks, non-government organisations have warned that ecosystems and local communities depend on the river’s annual flood.

  8. www.merriam-webster.com › dictionary › damDam Definition & Meaning - Merriam-Webster

    The meaning of DAM is a barrier preventing the flow of water or of loose solid materials (such as soil or snow); especially, civil engineering : a barrier built across a watercourse for impounding water. How to use dam in a sentence.

  9. eos.org › editors-vox › river-damming-how-it-harmsRiver Damming: How it Harms Fish and What Can Be Done

    Jan 19, 2024 · Dam construction impacts fish habitat in many ways. First, it decreases longitudinal, lateral, and vertical connectivity of rivers, affecting fish migration, spawning, and foraging.

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