Angat reservoir
| Angat reservoir | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 |
|||||||||
|
|||||||||
|
|||||||||
| Coordinates | 14 ° 54 '29 " N , 121 ° 9' 36" E | ||||||||
| Data on the structure | |||||||||
| Construction time: | November 1961 - August 1968 | ||||||||
| Height of the barrier structure : | 131 m | ||||||||
| Crown length: | 568 m | ||||||||
| Power plant output: | 246 MW | ||||||||
| Data on the reservoir | |||||||||
| Reservoir length | 37 km | ||||||||
| Storage space | 850 million m³ | ||||||||
The Angat Reservoir is a dam on the Angat River in the Philippines . The dam that dams the lake is 131 meters high and 568 meters long and is one of the largest in the country.
dam
The dam is located in the Sierra Madre on the island of Luzon , in the area of the municipality of Norzagaray in the province of Bulacan . It is used to irrigate 300 km² of land, flood protection , power generation and drinking water . The reservoir holds a maximum of 850 million cubic meters of water and is the main source of drinking water for the metropolitan area of Metro Manila .
The dam was built in a narrow canyon below the confluence of the two rivers Matulid and Maputi , the water catchment area covers 568 km², the nature and water protection area Angat Watershed Forest Reserve . The dam consists of a mixture of earth and rubble material. Planning and construction began in 1961 and construction work lasted until August 1968. The width of the crest is 8.75 meters and the depth of the dam at its base is approx. 550 meters.
The dam has a flood relief with three independent closures to prevent overflow of the dam. The inflow is controlled by the National Irrigation Authority (NIA) and thus determines the water level of the lake. The irrigation system that is fed by the reservoir supplies the farms in District III in the Bulacan Province.
Hydroelectric power plant
The potential of the Angat River region in the Sierra Madre was recognized as early as 1904. In 1926, the Bustos dam was built on the lower reaches, which irrigated a land area of 270 km². The first plans for the Angat Dam were made in 1939, but these were interrupted by World War II and re-initiated in the 1950s. The main hydroelectric power station was built below the dam. It generates around 228 megawatts of electricity. It is designed as a continuous load power plant and has four Francis turbines from the manufacturer ABB . The power plant is connected to the dam via two tunnel lines. They measure seven meters and sixty in diameter and are laid underground. In August 1968 the last turbines No. 3 and 4 were installed in the main power station building. Construction of the smaller Ipo Dam, below the main dam, began in 1978 and completed in 1984. It houses the six smaller turbines made by Toshiba , which together have an output of 18 MW .
The entire hydropower complex is owned by the Philippine National Power Corporation.
See also
Other major dams in the Philippines: