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.

2024年6月21日 · 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.

As of 2023, the U.S. state of Washington has 1,242 dams that are able to impound 10 acre-feet or more of water and are regulated by the Washington State Department of Ecology (DOE). These include dams that produce hydroelectricity and create reservoirs for irrigation, drinking water, or recreational uses.

Tolt Dam and Reservoir, looking east. The City of Seattle owns and operates the Tolt Dam and Reservoir located on the South Fork Tolt River in unincorporated King County, Washington, approximately 35 miles east of Seattle. The dam was completed in 1962 and is a 200-foot high earthfill dam with a Morning Glory Spillway.

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 …

The Dam Safety Office (DSO) regulates nearly 1,100 dams in Washington. Safety is our priority and we have rigorous procedures in place to protect people and property located downstream of dams. Through plan reviews and construction inspections, we help ensure dams are properly designed and constructed.

Dams provide a life-sustaining resource to people in all regions of the United States. They are an extremely important part of this nation’s infrastructure—equal in importance to bridges, roads, airports, and other major elements of the infrastructure.

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2019年2月5日 · Today there are an estimated 84,000 dams across the United States. Some—such as Hoover Dam—are located within national parks. Dams provide valuable resources like hydropower and water, but they have a complicated history. Learn more about the history of dams and the role they play in shaping America’s landscapes and powering its …

2021年11月14日 · Dams are water reservoirs or just a wall-like structure built across a river to retain the water and increase the flow when needed, used for electricity generation, and various other functions.