Kaliwa Low Dam

The Kaliwa Low Dam, proposed by the Philippine Government in 2012, was one of several bulk water supply projects on the upper portion of the Kaliwa River Watershed that have been proposed but ultimately shelved by the Philippine Government since the 1970s. The proposed Kaliwa Low Dam design had a 600 million-liters-a-day (MLD) capacity, and the water supply tunnel has a 2,400-MLD capacity. Had it been built, the Kaliwa Low Dam was expected to ease the demand on the Angat Dam, Manila's sole water storage facility. It was the main component of the New Centennial Water Source-Kaliwa Dam Project in Tanay, Rizal, which also called for the construction of a water supply tunnel and various attendant infrastructure. The project had originally been proposed as a bigger, integrated system that included a plan for a second dam, named Laiban dam further upstream. But the government decided on a proposal that would have built the system in stages, and only stage one, involving Kaliwa Low Dam and the water supply tunnel, was approved under the administration of Benigno Aquino III. When the project did not move forward by the time the Aquino administration ended, the succeeding Duterte administration decided not to pursue the Japanese-proposed Kaliwa Low Dam plan in 2019, deciding to instead pursue a bigger, China-funded dam project.

Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).