|Location||Montalban Gorge, Rodriguez, Rizal|
|Purpose||Water supply (original)|
|Dam and spillways|
|Type of dam||Arch-gravity dam|
|Length||280 feet (85 m)|
|Spillway type||Ogee crest|
Wawa Dam (also known as Montalban Dam) 360-metre (1,180 ft) high Montalban Gorge or Wawa Gorge, a water gap in the Sierra Madre Mountains, east of Manila. It was built in 1909 during the American colonial era to provide the water needs for Manila. It used to be the only source of water for Manila until Angat Dam was built and Wawa was abandoned in 1968 . Due to insufficiency of water supply for Metro Manila, there was a strong clamor to reuse the dam. The dam and surrounding area is currently protected as part of the Pamitinan Protected Landscape.is a gravity dam constructed over the Marikina River in the municipality of Rodriguez in Rizal province, Philippines. The slightly arched dam is situated in the
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by primarily using the weight of the material alone to resist the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable and independent of any other dam section.
Marikina River is a river in eastern Metro Manila, Philippines. It is a tributary of Pasig River with headwaters located in the Sierra Madre Mountains in Rodriguez, Rizal province.
A municipality is a local government unit (LGU) in the Philippines. A municipality is also usually called town in its archaic term, since municipalities have the functions of a town since its inception. They are distinct from cities, which are a different category of local government unit. Provinces of the Philippines are divided into cities and municipalities, which in turn, are divided into barangays, formerly barrios. As of March 31, 2017, there are 1,489 municipalities across the country..
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