Angat Dam

The Angat Dam is a dam on the river Angat in the Philippines. The dam, which impounds the lake, one with 131 meters height and 568 meters in length, the largest in the country.

Dam

The dam is located in the Sierra Madre on the island of Luzon, in the municipality of Norzagaray in Bulacan province. It serves the irrigation of 300 km ² land area, the flood control, power generation and drinking water. The reservoir holds up to 850 million cubic meters of water and is the main source of drinking water for the capital region Metro Manila.

The dam was constructed in a narrow canyon below the confluence of the two rivers Matulid and Maputi, the water catchment area covers 568 km ², the nature and water reserve Angat Watershed Forest Reserve. The dam consists of a mixture of earth and rockfill material. The planning and construction began in 1961 and the construction lasted until August 1968. The crown width is 8.75 meters and the depth of the dam at its base about 550 meters.

The dam has a spillway with three independent closures to prevent an overflow of the dam. The inflow is controlled by the National Irrigation Authority ( NIA ) and thus set the storage level of the lake from her. The irrigation system is fed by the reservoir, supplied agricultural holdings in the District III in the province of Bulacan.

Hydroelectric power station

The potential of the Angat River region in the Sierra Madre was recognized in 1904. 1926 already the Bustos Dam was built on the lower reaches, the irrigated a total land area of 270 km ². 1939 preliminary planning for the Angat Dam have been made, 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 produces about 228 megawatts of electricity. It is designed as a continuous load power plant and has four Francis turbines, the manufacturer ABB. The power station is connected via two tunnel lines to the dam. They measure seven meters and sixty in diameter and are laid Underground. In August 1968, the last turbines Nos. 3 and 4 were installed in the main powerhouse. The construction of smaller Ipo Dam, below the main dam was begun in 1978 and completed in 1984. He hosts the six smaller turbines manufacturer Toshiba, which together have a capacity of 18 MW.

The total water power plant complex is owned by the Philippine National Power Corporation.