A dry dam is a

dam 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, aqua ...

constructed for the purpose of

flood control Flood management or flood control are methods used to reduce or prevent the detrimental effects of flood waters. Flooding can be caused by a mix of both natural processes, such as extreme weather upstream, and human changes to waterbodies and ru ...

. Dry dams typically contain no gates or

turbines A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced can be used for generating electrical ...

, and are intended to allow the channel to flow freely during normal conditions. During periods of intense

rainfall Rain is a form of precipitation where water droplets that have condensed from atmospheric water vapor fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. ...

that would otherwise cause floods, the dam holds back the excess water, releasing it downstream at a controlled rate. Development of dry dams was pioneered by the

Miami Conservancy District The Miami Conservancy District is a river management agency operating in Southwest Ohio to control flooding of the Great Miami River and its tributaries. It was organized in 1915 following the catastrophic Great Dayton Flood of the Great Miami R ...

which built five such dams on tributaries to the

Great Miami River The Great Miami River (also called the Miami River) (Shawnee language, Shawnee: ''Msimiyamithiipi'') is a tributary of the Ohio River, approximately long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe Nat ...

to prevent flooding of the

Miami Valley The Miami Valley is the land area surrounding the Great Miami River in southwest Ohio, USA, and includes the Little Miami, Mad, and Stillwater rivers as well. Geographically, it includes Dayton, Springfield, Middletown, Hamilton, and other c ...

and

Dayton, Ohio Dayton () is a city in Montgomery County, Ohio, United States, and its county seat. It is the List of cities in Ohio, sixth-most populous city in Ohio, with a population of 137,644 at the 2020 United States census, 2020 census. The Dayton metro ...

References

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External links

Miami Conservancy District: How a dry dam works
Dams by type Flood control projects Hydrology History of Dayton, Ohio

See also

References

External links