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. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC.
The Chattahoochee River forms the southern half of the Alabama and Georgia border, as well as a portion of the Florida - Georgia border. It is a tributary of the Apalachicola River, a relatively short river formed by the confluence of the Chattahoochee and Flint rivers and emptying from Florida into Apalachicola Bay in the Gulf of Mexico. The Chattahoochee River is about 430 miles (690 km) long. The Chattahoochee, Flint, and Apalachicola rivers together make up the Apalachicola–Chattahoochee–Flint River Basin. The Chattahoochee makes up the largest part of the ACF's drainage basin.
The Cowlitz River is a river in the state of Washington in the United States, a tributary of the Columbia River. Its tributaries drain a large region including the slopes of Mount Rainier, Mount Adams, and Mount St. Helens.
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower. Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power.
The Black Warrior River is a waterway in west-central Alabama in the southeastern United States. The river rises in the extreme southern edges of the Appalachian Highlands and flows 178 miles (286 km) to the Tombigbee River, of which the Black Warrior is the primary tributary. The river is named after the Mississippian paramount chief Tuskaloosa, whose name was Muskogean for 'Black Warrior'. The Black Warrior is impounded along nearly its entire course by a series of locks and dams to form a chain of reservoirs that not only provide a path for an inland waterway, but also yield hydroelectric power, drinking water, and industrial water.
The Oradell Reservoir is a reservoir formed by the Oradell Reservoir Dam on the Hackensack River in Bergen County, New Jersey, USA.
The Tallapoosa River runs 265 miles (426 km) from the southern end of the Appalachian Mountains in Georgia, United States, southward and westward into the Appalachian foothills in Alabama. It is formed by the confluence of McClendon Creek and Mud Creek in Paulding County, Georgia. Lake Martin at Dadeville, Alabama is a large and popular water recreation area formed by a dam on the river. The Tallapoosa joins the Coosa River about 10 miles (16 km) northeast of Montgomery near Wetumpka to form the Alabama River.
"Reservoir" as a technical term, most commonly refers to an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation.
Douglas Dam is a hydroelectric dam on the French Broad River in Sevier County, Tennessee, in the southeastern United States. The dam is operated by the Tennessee Valley Authority (TVA), which built the dam in record time in the early 1940s to meet emergency energy demands at the height of World War II. Douglas Dam is a straight reinforced concrete gravity-type dam 1705 feet long and 202 feet high, impounding the 28,420-acre (11,500 ha) Douglas Lake. The dam was named for Douglas Bluff, a cliff overlooking the dam site prior to construction.
The Central Utah Project is a US federal water project that was authorized for construction under the Colorado River Storage Project Act of April 11, 1956, as a participating project. In general, the Central Utah Project develops a portion of Utah's share of the yield of the Colorado River, as set out in the Colorado River Compact of 1922.
The Loch Raven Reservoir is a reservoir that provides drinking water for the City of Baltimore and most of Baltimore County, Maryland. It is fed by the Big Gunpowder Falls river, and has a capacity of 23 billion US gallons (87,000,000 m3) of water.
Lewis Smith Lake is a reservoir in north Alabama. Located on the Sipsey Fork of the Black Warrior River, it covers over 21,000 acres (85 km2) in Cullman, Walker, and Winston Counties. The maximum depth at the dam is 264 feet (80 m). It is the deepest lake in Alabama. The three-fingered reservoir has over 500 miles (800 km) of shoreline, and at full pool has a level of 510 feet (160 m).
In Section 203(a) of the Central Utah Project Completion Act, the United States Congress authorized a federally authorized and funded replacement project to replace the Uinta and Upalco Units of the Central Utah Project (CUP) which were not constructed. The replacement project is the Uinta Basin Replacement Project (UBRP). The UBRP will provide: 2,500 acre-feet (3,100,000 m3) of irrigation water; 3,000 acre-feet (3,700,000 m3) of municipal and industrial water; reduced wilderness impacts; increased instream flows; and improved recreation. Design work began in 2002. Construction began in 2004 and is anticipated to be completed in 2011. The Central Utah Water Conservancy District is responsible for construction. The United States Department of the Interior oversees funding and compliance with law and environmental regulation.
Jayakwadi dam is an earthen dam located on Godavari river at the site of Jayakwadi village in Paithan taluka of Aurangabad district in Maharashtra, India. It is a multipurpose project. The water is mainly used to irrigate agricultural land in the drought-prone Marathwada region of the state. It also provides water for drinking and industrial usage to nearby towns and villages and to the municipalities and industrial areas of Aurangabad and Jalna districts. The surrounding area of the dam has a garden and a bird sanctuary.
Lake Charvak is a water reservoir in Boʻstonliq District in the northern part of Tashkent Region, Uzbekistan, separating Ugam (north), Pskem (east), and Chatkal (south) ranges. The reservoir was created by erecting a 168 m (551 ft) high stone dam on the river Chirchiq, a short distance downstream from the confluence of Pskem, Koʻksuv and Chatkal rivers in the western Tian Shan mountains, which provide the main volume of water. Currently the confluence cannot be seen and all three rivers discharge directly into Charvak. The reservoir capacity is 2 km3 (0.48 cu mi).
The Kalpasar Project or the Gulf of Khambhat Development Project envisages building a 30 km dam across the Gulf of Khambat in India for establishing a huge fresh water coastal reservoir for irrigation, drinking and industrial purposes. The project with 30 km sea dam will have the capacity to store 10,000 million cubic meters fresh water, equating to 25% of Gujarat’s average annual rainwater flow, from the rivers like Narmada, Mahi, Dhadhar, Sabarmati, Limbdi-Bhagovo, and two other minor rivers. A 10 lane road link will also be set up over the dam, greatly reducing the distance between Saurashtra and South Gujarat. The project, which will create world's largest freshwater lake in marine environment, will cost INR90,000 crore or US$12.75 billion excluding the cost of tidal power plant. Project entails construction of the main "Kalpasar dam" across Gulf of Khambat and another Bhadbhut barrage on Narmada river, as well as a canal connecting the two.
Lake Pueblo State Park is a state park located in Pueblo County, Colorado. It includes 60 miles (97 km) of shoreline and 10,000 acres (40 km2) of land. Activities it offers include two full-service marinas, recreational fishing, hiking, camping and swimming at a special swim beach.
Rydal Dam is a minor ungated homogeneous earthfill embankment dam with a fuse plug uncontrolled open channel spillway across an off stream storage, located near Rydal in the Central Tablelands region of New South Wales, Australia. The dam's purpose is to provide water storage for Delta power stations at Wallerawang and Mount Piper. The impounded reservoir is also called the Rydal Dam.
Getalsud Dam is an artificial reservoir situated in Ormanjhi, Ranchi, Jharkhand. It was constructed across the Subarnarekha River and was opened in 1971. It is a popular picnic spot for the residents of Ranchi and Ramgarh District. The dam provides a small-scale fishing opportunity to the local people of Rukka. The main purpose of the dam is to fulfill the drinking water requirements of the residents of Ranchi. Apart from that, it is used for industrial purposes and generating electricity.
There are a large number of reservoirs in Wales reflecting the need for the supply of water for both industry and for consumption, both within the country itself and in neighbouring England. A number also provide hydroelectricity and many old reservoirs also provided motive power for industries, especially for the processing of minerals such as metal ores and slate.
