baKuN dAm

BAKUN DAM

The Bakun Hydroelectric Project is located in Sarawak, Malaysia on the Balui River, a tributary or source of the Rajang River and some sixty kilometers west of Belaga.As part of the project, the tallest concrete-faced rockfill dam in the world would be built. This would also be the largest dam in Asia outside of China. It is expected to generate 2,400 megawatts (MW) of electricity once completed.
The purpose for the dam was to meet growing demand for electricity. However, most of this demand said to lie in Peninsular Malaysia and not East Malaysia, where the dam is located. Even in Peninsular Malaysia, however, there is an over-supply of electricity, with Tenaga Nasional Berhad being locked into unfavourable purchasing agreements with Independent Power Producers. The original idea was to have 30% of the generated capacity consumed in East Malaysia and the rest sent to Peninsular Malaysia. This plan envisioned 730 km of overhead HVDC transmission lines in East Malaysia, 670 km of undersea HVDC cable and 300 km of HVDC transmission line in Peninsular Malaysia.
Future plans for the dam include connecting it to an envisioned Trans-Borneo Power Grid Interconnection, which would be a grid to supply power to Sarawak, Sabah, Brunei, and Kalimantan (Indonesia). There have been mentions of this grid made within ASEAN meetings but no actions have been taken by any party.

baTaNg ai

BATANG AI

Batang Ai Dam is a concrete-faced rockfill hydroelectric dam in Batang Ai National Park, Sarawak, Malaysia. It is located at Lubok Antu.The power station is a hydroelectric power station, using 4 turbines of 25 MW installed capacity. The station is operated by Sarawak Electricity Supply Corporation.Planning for the dam started in 1975 and designed in 1977. Construction started 1982 with the river diversion work and the last turbine completed in 1985.
Maximum height above foundation of 110m, and crest length of x00m, volume of fill is xx.xx million cubic meters.Crest elevation is xxx m above sea level (ASL), maximum flood level is xxx m, operating levels maximum xxx m and minimum xxx m.Reservoir area at xxx m ASL is 24 km², and with a catchment area of 1, 200 km². Storage volume is 750 million cubic meters.Power Intake Structure - 4 bays.Spillway- gated concrete weir with xxx m chute and flip bucket, with capacity of 2,438 cubic meter per second.Power Tunnels - 4 tunnels. Powerhouse
surface powerhouse with 4 levels,with 4 penstocks to powertrains comprising 4 turbines of 25 MW each, 4 air-cooled generators of xxx MVA each and 4 transformers of 250 MVA each.

grEeRs fErRy daM

GREERS FERRY

The dam is located at 35°31′15″N 91°59′36″W / 35.52083, -91.99333 north of Little Rock. It was dedicated in October, 1963 by President John F. Kennedy just one month before his assassination. This event marks the only time a sitting president has visited Cleburne County.
Construction of the dam began in March 1959 and was completed in December 1962. The lake serves the Heber Springs area flood control, and is a site for recreation and power generation. When construction began on the dam in 1956, hundreds of workers showed up looking for work. The newly-hired workers then rented empty houses next to the construction site, and workers were even building their own homes next to the soon-to-be lake. Once all the workers arrived, people and business owners saw an opportunity in this construction and built motels, shops, and stores next to the construction site so workers would have a place to shop and relax. Farmers also felt the benefit of the construction, as work on the lake created demand for livestock and agriculture.
After completion, the lake was dedicated on October 3, 1963 by John F. Kennedy.The trip was his last major public appearance before his fateful trip to Dallas on Nov. 22, 1963, where he was assassinated. In his remarks in Heber Springs, Kennedy explained that the Greers Ferry project and others like it were investments in Arkansas and the nation's future. He was right - after the lake filled, tourism boomed, many businesses reopened, and Greers Ferry Lake became one of Arkansas' leading destinations. Today, many resort communities dot the shores of Greers Ferry Lake.

OlyMpiC daM

OLYMPIC DAM

Olympic Dam Coordinates: 30°26′14.02″S 136°53′19.23″E / -30.4372278, 136.888675 is a mining centre in South Australia located some 550 km NNW of Adelaide the capital city of South Australia. It is the site of an extremely large deposit of copper, uranium, gold and silver, which supports an underground mine as well as an integrated metallurgical processing plant. It is the largest known single deposit of uranium in the world, though uranium represents only a minority of the mine's total revenue.The deposit was discovered by Western Mining Corporation in 1975 and started production in 1987. It now belongs to BHP Billiton, which acquired WMC Resources in 2005. The mine currently operates by an underground mining method called sublevel open stoping, using modern and highly productive mining equipment. The March 2005 mine production rate is an annualised 9.1 million tonnes making it one of Australia's larger mines. 2005 metal production is thought to be in excess of 220,000 tonnes of copper, 4500 tonnes of uranium oxide, plus gold and silver. The copper and uranium oxide are exported through Port Adelaide. Most of the mine workers live in the nearby towns of Roxby Downs and Andamooka. Regular flights to Olympic Dam Airport service Olympic Dam.
The Olympic Dam mine uses 35 million litres of Great Artesian Basin water each day, making it the largest industrial user of underground water in the southern hemisphere.

teMeNggOr dAm

TEMENGGOR DAM

The Temenggor Dam or Temenggor Power Station is a major hydroelectric dam in Gerik, Perak, Malaysia. It is located on Sungai Perak about 200 km northeast of Ipoh. Construction of the dam formed a large lake, Temenggor Lake.The power station is a hydroelectric power station, using 4 Hitachi turbines of 87 MW installed capacity. The station is operated by Tenaga Nasional. Since 1987 Temenggor has been unmanned and is remotely operated via a SCADA system at the Bersia Group Control Centre. In the late 1990s, facilities were added to enable Automatic Generation Control by TNB's National Load Despatch Centre in Kuala Lumpur.Temenggor Dam is now the third largest dam in Malaysia. It was once the largest dam and largest hydroelectric generation facility upon completion in 1979, before being overtaken by the Kenyir Dam in 1985. It holds a special place in the history of Malaysia for its military role in flooding the Upper Perak River and cutting off the communist terrorists' infiltration route from the Betong salient in Thailand.
Maximum height above foundation of 127 m, and crest length of 258 m, volume of fill is xx.00 million cubic metres.Crest elevation is 250 m above sea level (ASL), maximum flood level is 248 m, operating levels maximum 245 m and minimum 200 m.Reservoir area at 245 m ASL is 152 km², and with a catchment area of x,000 km². Storage volume is 6,050 million cubic meters.
Power Intake Structure - 4 bays.Spillway- free-overflow, weir with chute and flip bucket, with capacity of x,000 cubic meter per second.Power Tunnels - 4 tunnels. Powerhouse surface powerhouse with 4 penstocks to powertrains comprising 4 turbines of 87MW each, 4 air-cooled generators of 100MVA each and 4 transformers of 100MVA each.

iMpEriaL daM

IMPERIAL DAM

The Imperial Dam is a dam near Yuma, Arizona (USA), built in the 1930s. It diverts Colorado River water into three different canals and holds the river water until it can be directed into a desilting plant before being released into the All-American Canal, the Gila River, and the Yuma project aqueduct. While it was being built between 1932 and 1940, the Imperial Irrigation District (IID) relied on water from two temporary canals: the Inter-California canal and the Imperial canal (Alamo river).
The dam was built with three sections; the gates of each section hold back the water to help divert the water towards the desilting plant. Three giant desilting basins and seventy-two 770 foot (230 m) long scrapers hold and desilt the water; the removed silt is carried away by six sludge-pipes running under the Colorado River that dump the sediment into the California sluiceway, which returns the silt to the Colorado River. The water is now directed back towards one of the three sections which divert the water into one of the three channels. About 90% of the volume of the Colorado River is diverted into the canals at this local. Diversions can near 40,000 ft³/s (1,100 m³/s), roughly the volume of the Susquehanna River and more than 50 times the natural volume of the Rio Grande River.
The Gila River and the Yuma project aqueduct branch off towards Arizona while the All-American canal branches southwards for 37 miles (60 km) before reaching its headworks on the California border and bends west towards the Imperial Valley.
Though the All-American canal moves billions of gallons of water into Imperial Valley every year, millions of it are lost due to seepage problems. IID and Mexican authorities are debating on whether or not to line the All-American canal with concrete. The Mexican authorities are opposed to the All-American canal lining project, as the leaking water allows Mexican farmers to irrigate their crops with well-water.

glEN caNyOn

GLEN CANYON

Glen Canyon Dam is a dam on the Colorado River at Page, Arizona, USA, operated by the United States Bureau of Reclamation. The purpose of the dam is to provide water storage for the arid southwestern United States, and to generate electricity for the region's growing population. Damming the river flooded Glen Canyon and created a large reservoir called Lake Powell. Just downstream from the dam is an arch bridge that carries U.S. Route 89. Also nearby is the 2280 megawatt, coal-fired Navajo Generating Station.