Typhoons over the past 7 weeks have not only brought high winds and tides but massive flooding. Having 8 dams in the northern part of the Philippines is great for agriculture, but they are all full now.

During the Typhoons, much of the water had to be let out, while rivers were already being filled due to the rains as well. Needless to say, many houses and buildings were submerged up to and in some cases over the roofline.

Right in the path of the water is the planned new Bulacan Airport being constructed by SMC. Some have expressed concern over the impending construction of the 2,500-hectare new Manila International Airport, fearing it might worsen flooding in their community.

You can read an article HERE. 

SAN Miguel Corporation (SMC) has committed to help solve the flooding problem in Bulacan by dredging, widening, and cleaning up major rivers in the province, as it gears up for the construction of its P734 billion Manila International Airport in Bulakan town, the biggest airport development in the Philippines.

You can view the article HERE.

It is not clear what impact this year’s Typhoons have had on the other two planned airport construction works.

An interesting note is Metro Manila is a flood plain; it is sinking four inches a year; it is in a tsunami-prone, volcano-active zone which is both right on a major fault and 100 kilometers from another major fault just west of Luzon. The city of Manila is the most congested city in the world, and it is just five meters above sea level.

It is clear that airports in the Philippines have to be designed and built to survive Floods, winds, earthquakes, and perhaps volcanos. 

I am looking forward to next year when Covid is under control and perhaps some work will become available.


Dam Data
Here’s a quick look at Luzon’s Major Dams:

Angat Dam – Situated in Norzagaray in Bulacan, it supplies water to farmlands in Pampanga and some parts of Bulacan, and is a power source of the Luzon grid. Metro Manila and Bulacan residents also get their water supply from here. During the rainy season, the flood season water level of Angat Dam is at 210 meters, while the dry season’s normal high water level is at 212 meters.

Ipo and La Mesa Dams – These dams are part of the Angat-Ipo-Lamesa water system. Located in Norzagaray, Bulacan, the Ipo dam water is diverted to the Novaliches portal and the La Mesa dam. The latter is situated in Fairview, Quezon City. Its main purpose is to provide water for domestic use in Greater Metro Manila.

Ambuklao Dam – Found in the mountains of Bokod, Benguet, this was designed to provide 75 MW (megawatts) of energy to the Luzon grid. The water level in Ambuklao dam also varies depending on the season. The normal high water level during the dry season is at 750 meters while the flood season water level during the rainy season is at 752 meters.

Binga Dam – Found in the province of Itogon in Benguet, this dam forms an impoundment on the Agno River. It’s also a hydroelectric plant that supplies power generation to nearby provinces. Binga dam maintains a 575-meter level regardless of the season.

San Roque Dam – Spanning from San Manuel and San Nicolas in Pangasinan, this is among the largest dams in the Philippines. Connected to the Tarlac River through the Agno River, the San Roque dam provides irrigation to San Manuel, Asingan, Sta. Barbara, Binalonan, Urdaneta City, Villasis, Calasiao, Mapandan, Manaoag, Mangaldan, Laoac, and Malasiqui. It also supplies power generation to the Luzon grid. The normal water level in San Roque dam is at 280 meters.

Magat Dam – Magat dam rests in the province of Isabela, and is located specifically in the Magat River, considered the largest tributary of the Cagayan River. As one of the largest dams in the Philippines, its primary purposes are providing irrigation and hydroelectric power to 85,000 hectares of agricultural lands in the Cagayan Valley and other parts of the Isabela province.

Caliraya Dam – Positioned along the Caliraya River in Lumban, Laguna, and this dam utilizes water in the Caliraya River Basin. The power generated from the Caliraya Hydroelectric Plant is intended for the Manila power market.