Martinsville is an independent city in the Commonwealth of Virginia in the United States. As of the 2020 census, the population was 13,485. A community of both Southside and Southwest Virginia, it is the county seat of Henry County, although the two are separate jurisdictions. The Bureau of Economic Analysis combines the city of Martinsville with Henry County for statistical purposes.
The Clinch River is a river that flows southwest for more than 300 miles (480 km) through the Great Appalachian Valley in the U.S. states of Virginia and Tennessee, gathering various tributaries, including the Powell River, before joining the Tennessee River in Kingston, Tennessee.
The Wivenhoe Dam is a rock and earth-fill embankment dam with a concrete spillway across the Brisbane River in South East Queensland, Australia. The dam takes it names from the local Wivenhoe Pocket rural community. The dam wall is located about 80 kilometres (50 mi) by road from the centre of Brisbane. The primary purpose of the dam is the supply of potable water for the Brisbane and Ipswich regions. The dam also provides for flood mitigation control, hydroelectricity, and recreation. The impounded reservoir is called Lake Wivenhoe and the dam, the lake and a narrow strip of surrounding land forms a locality also called Lake Wivenhoe.
Folsom Powerhouse State Historic Park is a historical site preserving an 1895 alternating current (AC) hydroelectric power station—one of the first in the United States.
Hirakud Dam is built across the Mahanadi River, about 15 kilometres (9 mi) from Sambalpur in the state of Odisha in India. It is the longest earthen dam in the world. Behind the dam extends a lake, Hirakud Reservoir, 55 km (34 mi) long. It is one of the first major multipurpose river valley projects started after India's independence. Hirakud Reservoir was declared a Ramsar site on 12 October 2021.
The Moorina Power Station is a decommissioned hydroelectric power station, located near the hamlet of Moorina in far north-eastern Tasmania, Australia. Opened in 1909 and decommissioned in 2008, at the time of its closure, Moorina Power Station was the oldest operating electricity generator in Australia.
Hydroelectricity is, as of 2019, the second-largest renewable source of energy in both generation and nominal capacity in the United States. In 2021, hydroelectric power produced 31.5% of the total renewable electricity, and 6.3% of the total U.S. electricity.
Smith Mountain Dam is a concrete arch dam located on the Roanoke River in Virginia, creating Smith Mountain Lake. The dam was built by Appalachian Power between 1960 and 1963 for the purposes of pumped-storage hydroelectricity. The dam created Smith Mountain Lake as its reservoir, where recreation and real estate have become popular.
The Hannibal Locks and Dam are a United States Army Corps of Engineers concrete locks and lift gate dam, located at river mile marker 126.4 on the Ohio River at Hannibal, Ohio, and New Martinsville, West Virginia. The locks and dam were built to replace the wicket-type locks and dams Number 12, 13 and 14. Construction on the locks was started in 1967 and completed in 1972. Construction on the dams was started in 1970 and completed in 1975.
Power Plant and Dam No. 4 is a historic hydroelectric power generation station on the Potomac River, located near Shepherdstown on the county line between Berkeley and Jefferson County, West Virginia. The power plant is a tall one-story, limestone building on a high stone foundation. It is five bays long and has a gable roof. Dam 4 uses horizontal shaft turbines connected by rope drives to horizontal shaft generators. This plant is probably the last commercially operated rope-driven hydroelectric plant in the United States. The building is built into a hillside, so the main floor is the top floor. The power plant was originally built by the Martinsburg Electric Company.
The Güllübağ Dam is a gravity dam near the town of Güllübağ on the Çoruh River in Erzurum Province, Turkey. The primary purpose of the dam is hydroelectric power production. Construction on the river diversion tunnel began in 2009 and the dam was complete in 2012. That same year the first generator became operational and the final generator was operational in March 2013. Water from the dam is sent down downstream through a 3,200 m (10,500 ft) long penstock where it reaches an 84 MW power station. The dam is part of the Çoruh Development Plan and it is owned by Turkey's State Hydraulic Works.
The Shimokotori Dam is a rock-fill dam on the Shimokotori River about 15 km (9.3 mi) west of Hida in Gifu Prefecture, Japan. The primary purpose of the dam is hydroelectric power generation and water from its reservoir is diverted via a 8.5 km (5.3 mi) long headrace tunnel to a 142 MW power station northeast of the dam. The power station discharges the water into the Jinzū River. Construction on the dam began in 1970 and it was completed in 1973. The power station went operational in May 1973 and is owned by Kansai Electric Power Company.
The Martinsville Fish Dam is a Native American weir in the Smith River near Martinsville, Virginia. The weir is a rough wall of piled rocks in a V shape with the point of the V downstream. At an opening in that point a basket could be used to catch fish that were funneled to that point by the walls of the weir.
The Cushaw Hydroelectric Project is a 7.5 megawatt (MW) dam and power house facility owned and operated by Virginia Electric Power Company, operating as Dominion Virginia Power.
