Pantabangan Dam

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The Pantabangan Reservoir is a large dam on the river Pampanga in the Philippines. The dam is one with 104 meters high and 1615 meters long, the largest in the country.

Dam

The dam is located in the Caraballo Mountains on the island of Luzon, in the field of community Pantabangan in the province of Nueva Ecija. It serves the irrigation of 1064 square kilometers of land, flood control and power generation. The reservoir holds up to 2,996 million cubic meters of water and covers an area of ​​69.62 square kilometers.

The dam was constructed in a narrow canyon below the confluence of the two rivers Carranglan and Pantabangan. It consists of a mixture of earth and rockfill material. The planning and construction began in 1971 and the construction lasted until May 1977. The crown width is 12 meters and the depth of the dam at its base about 535 meters. The construction is considered to be earthquake-proof: they already withstood earthquake with a magnitude of 7.7 on the Richter scale in 1990 The dam has a spillway with four 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 supplies the farms in the districts I and II in the province of Nueva Ecija.

Hydroelectric power station

The Masiway hydroelectric power plant was built in 1977-1981 and is about 7 km below the dam. It produces about 100 megawatts of electricity. It is designed as a continuous load power plant and has two Francis turbines, the manufacturer voestalpine, each with a rated capacity of 50 megawatts. The power station is connected via two pipelines to the dam. They measure six feet in diameter and are laid above ground. The hydroelectric power plant is owned by the Philippine National Power Corporation.