[2] The slightly arched dam is situated in the 360-metre (1,180 ft) high Montalban Gorge or Wawa Gorge,[3] a water gap in the Sierra Madre Mountains, east of Manila.

Construction of the dam began in 1904, and it became operational in 1909, during the American colonial era, to provide the water needs for Manila.

[7] Due to insufficiency of water supply for Metro Manila, there was a strong clamor to reuse the dam.

In July 2024, the impounding process of the PhP26.5 billion Upper Wawa Dam project, in San Rafael, Rodriguez, Rizal is undertaken by the Prime Infra and WawaJVCo contructors.

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