Wawa Dam

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Wawa Dam
Upper Marikina River Basin Protected Landscape dammed by Wawa Dam.jpg
Wawa Dam
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Montalban Rodriguez Rizal
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Wawa Dam (Philippines)
Country Philippines
LocationMontalban Gorge, Rodriguez, Rizal
Coordinates 14°43′40″N121°11′30″E / 14.72778°N 121.19167°E / 14.72778; 121.19167 Coordinates: 14°43′40″N121°11′30″E / 14.72778°N 121.19167°E / 14.72778; 121.19167
PurposeWater supply (original)
Recreation (current)
Dam and spillways
Type of dam Arch-gravity dam
Impounds Marikina River
Length280 feet (85 m)
Spillways One
Spillway type Ogee crest

Wawa Dam (also known as Montalban Dam) [1] is a gravity dam constructed over the Marikina River in the municipality of Rodriguez in Rizal province, Philippines. [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. It was built in 1909 during the American colonial era to provide the water needs for Manila. [4] [5] It used to be the only source of water for Manila until Angat Dam was built and Wawa was abandoned in 1968 [6] . Due to insufficiency of water supply for Metro Manila, there was a strong clamor to reuse the dam. [7] The dam and surrounding area is currently protected as part of the Pamitinan Protected Landscape.

Gravity dam

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 river in the Philippines

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.

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Pamitinan Protected Landscape

The Pamitinan Protected Landscape is a Philippine protected area of approximately 608 hectares in the Sierra Madre mountain range, just 34 kilometres (21 mi) northeast of Manila. It contains and protects the Montalban Gorge formed by the Marikina River that separates Mount Pamitinan and Mount Binacayan in the municipality of Rodriguez in Rizal. Established in 1996 through Proclamation No. 901 issued by President Fidel Ramos, the park is originally a component of the Mariquina Reserve founded in 1904 to protect the watershed of the Marikina River that supplied water to the city of Manila from the Wawa Dam located just above the Montalban Gorge in the early 1900s.

References

  1. Philippine Commission (1912). "Annual Reports of the U.S. War Department 1912, Vol. IV". Government Printing Office, Washington.
  2. "Final List of Watersheds Supporting 140 River Irrigation Systems of the NIA", pg. 5. Green Army Network. Retrieved on 2012-08-15.
  3. "Wawa Gorge". Google Maps. Retrieved on 2012-08-15.
  4. Philippine Commission (1908). "Report of the Philippine Commission to the Secretary of War 1908, Part 1". Government Printing Office, Washington.
  5. http://www2.philstar.com/business/558574/mwss-eyes-wawa-dam-for-additional-water-supply
  6. https://pinoyshouts.wordpress.com/2010/01/25/wawa-dam-or-laiban-dam/
  7. Cruz, Neal (2010-06-10). "Probe water agencies on Wawa". Inquirer.net. Retrieved June 2012.Check date values in: |accessdate= (help)