ADVERTISEMENT
Manila Bulletin devider Philippines devider Ipo, Ambuklao, Binga dams continue to release water; flood risk remains in low-lying areas

Ipo, Ambuklao, Binga dams continue to release water; flood risk remains in low-lying areas

Published Jul 23, 2025 03:08 pm
Ipo Dam in Bulacan (Manila Bulletin file photo)
Ipo Dam in Bulacan (Manila Bulletin file photo)
The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Wednesday, July 23 reported that Ipo, Ambuklao, and Binga Dams continue to release water amid rising inflows caused by the southwest monsoon, or “habagat.”
PAGASA hydrologist Aileen Abelardo said Ipo Dam in Bulacan is currently at 100.17 meters, down slightly by 11 centimeters but still releasing water at minimal levels.
She noted that PAGASA continues to issue hydrological situationers for Ipo Dam to advise local government units to take appropriate action, as Angat River’s water level is expected to rise further due to the continued discharge.
Abelardo warned that areas likely to be affected by the rising water levels along the Angat River include the municipalities of Norzagaray, Angat, San Rafael, Bustos, Baliuag, Pulilan, Plaridel, Calumpit, Paombong, and Hagonoy.
Cascading dams
Meanwhile, the water level at Ambuklao Dam in Benguet is at 750.7 meters, down by 30 centimeters. It has three gates open to release water.
Binga Dam, also in Benguet, rose by 1.35 meters to 574.01 meters as it receives inflows from Ambuklao. Currently, it has two gates open.
San Roque Dam in Pangasinan, which receives water from Binga, is at 247.66 meters, up by 1.05 meters, but remains 32.34 meters below its normal high water level of 280 meters.
Ambuklao, Binga, and San Roque dams form a cascading system that flows into the Agno River.
PAGASA said no gate openings are expected at San Roque at this time.
However, hydrological situationers continue to be issued for Ambuklao and Binga as a precaution.
PAGASA advised communities downstream of Ambuklao and Binga dams, including parts of Bokod and Itogon in Benguet, to stay alert as water releases may raise flood risks along the Agno River.
La Mesa Dam below spilling level
La Mesa Dam in Quezon City is now at 79.94 meters, down by 23 centimeters and below its overflow level of 80.15 meters.
However, Abelardo warned that if the dam overflows again, low-lying areas along the Tullahan River could be affected. These include parts of Quezon City (Greater Lagro, Fairview, North Fairview, Sauyo, Santa Lucia, Santa Monica, Gulod, Novaliches Proper, Nagkaisang Nayon, San Bartolome, Capri, Bagbag, Talipapa), Valenzuela City (Ugong, Gen. T. De Leon, Marulas, Malinta), Caloocan City (Barangays 160 to 164), Malabon City (Potrero, Tinejeros, Catmon, Maysilo, Muzon, Concepcion, Niugan, Ibaba, San Agustin, Tanong, Longos), and Navotas City (NBBS Dagat-dagatan, Bangculasi, Bagumbayan North, and North Bay Boulevard North).
Other dams
Other major dams in Luzon also recorded rising water levels but remain below their respective normal high water levels.
Angat Dam in Bulacan is at 199.15 meters, up by 1.04 meters but far below its normal high water level of 210 meters.
Pantabangan Dam in Nueva Ecija also rose by 59 centimeters to 194.7 meters, below its 216-meter threshold.
Magat Dam in Isabela increased by 84 centimeters to 185.87 meters, still below its normal high water level of 190 meters.

Related Tags

PAGASA IPO DAM. AMBUKLAO DAM. BINGA DAM HABAGAT LA MESA DAM
ADVERTISEMENT
.most-popular .layout-ratio{ padding-bottom: 79.13%; } @media (min-width: 768px) and (max-width: 1024px) { .widget-title { font-size: 15px !important; } }

{{ articles_filter_1561_widget.title }}

{{ item.title }}
.most-popular .layout-ratio{ padding-bottom: 79.13%; } @media (min-width: 768px) and (max-width: 1024px) { .widget-title { font-size: 15px !important; } }

{{ articles_filter_1562_widget.title }}

{{ item.title }}
.most-popular .layout-ratio{ padding-bottom: 79.13%; } @media (min-width: 768px) and (max-width: 1024px) { .widget-title { font-size: 15px !important; } }

{{ articles_filter_1563_widget.title }}

{{ item.title }}

{{ articles_filter_1564_widget.title }}

{{ item.title }}
.mb-article-details { position: relative; } .mb-article-details .article-body-preview, .mb-article-details .article-body-summary{ font-size: 17px; line-height: 30px; font-family: "Libre Caslon Text", serif; color: #000; } .mb-article-details .article-body-preview iframe , .mb-article-details .article-body-summary iframe{ width: 100%; margin: auto; } .read-more-background { background: linear-gradient(180deg, color(display-p3 1.000 1.000 1.000 / 0) 13.75%, color(display-p3 1.000 1.000 1.000 / 0.8) 30.79%, color(display-p3 1.000 1.000 1.000) 72.5%); position: absolute; height: 200px; width: 100%; bottom: 0; display: flex; justify-content: center; align-items: center; padding: 0; } .read-more-background a{ color: #000; } .read-more-btn { padding: 17px 45px; font-family: Inter; font-weight: 700; font-size: 18px; line-height: 16px; text-align: center; vertical-align: middle; border: 1px solid black; background-color: white; } .hidden { display: none; }
function initializeAllSwipers() { // Get all hidden inputs with cms_article_id document.querySelectorAll('[id^="cms_article_id_"]').forEach(function (input) { const cmsArticleId = input.value; const articleSelector = '#article-' + cmsArticleId + ' .body_images'; const swiperElement = document.querySelector(articleSelector); if (swiperElement && !swiperElement.classList.contains('swiper-initialized')) { new Swiper(articleSelector, { loop: true, pagination: false, navigation: { nextEl: '#article-' + cmsArticleId + ' .swiper-button-next', prevEl: '#article-' + cmsArticleId + ' .swiper-button-prev', }, }); } }); } setTimeout(initializeAllSwipers, 3000); const intersectionObserver = new IntersectionObserver( (entries) => { entries.forEach((entry) => { if (entry.isIntersecting) { const newUrl = entry.target.getAttribute("data-url"); if (newUrl) { history.pushState(null, null, newUrl); let article = entry.target; // Extract metadata const author = article.querySelector('.author-section').textContent.replace('By', '').trim(); const section = article.querySelector('.section-info ').textContent.replace(' ', ' '); const title = article.querySelector('.article-title h1').textContent; // Parse URL for Chartbeat path format const parsedUrl = new URL(newUrl, window.location.origin); const cleanUrl = parsedUrl.host + parsedUrl.pathname; // Update Chartbeat configuration if (typeof window._sf_async_config !== 'undefined') { window._sf_async_config.path = cleanUrl; window._sf_async_config.sections = section; window._sf_async_config.authors = author; } // Track virtual page view with Chartbeat if (typeof pSUPERFLY !== 'undefined' && typeof pSUPERFLY.virtualPage === 'function') { try { pSUPERFLY.virtualPage({ path: cleanUrl, title: title, sections: section, authors: author }); } catch (error) { console.error('ping error', error); } } // Optional: Update document title if (title && title !== document.title) { document.title = title; } } } }); }, { threshold: 0.1 } ); function showArticleBody(button) { const article = button.closest("article"); const summary = article.querySelector(".article-body-summary"); const body = article.querySelector(".article-body-preview"); const readMoreSection = article.querySelector(".read-more-background"); // Hide summary and read-more section summary.style.display = "none"; readMoreSection.style.display = "none"; // Show the full article body body.classList.remove("hidden"); } document.addEventListener("DOMContentLoaded", () => { let loadCount = 0; // Track how many times articles are loaded const offset = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; // Offset values const currentUrl = window.location.pathname.substring(1); let isLoading = false; // Prevent multiple calls if (!currentUrl) { console.log("Current URL is invalid."); return; } const sentinel = document.getElementById("load-more-sentinel"); if (!sentinel) { console.log("Sentinel element not found."); return; } function isSentinelVisible() { const rect = sentinel.getBoundingClientRect(); return ( rect.top < window.innerHeight && rect.bottom >= 0 ); } function onScroll() { if (isLoading) return; if (isSentinelVisible()) { if (loadCount >= offset.length) { console.log("Maximum load attempts reached."); window.removeEventListener("scroll", onScroll); return; } isLoading = true; const currentOffset = offset[loadCount]; window.loadMoreItems().then(() => { let article = document.querySelector('#widget_1690 > div:nth-last-of-type(2) article'); intersectionObserver.observe(article) loadCount++; }).catch(error => { console.error("Error loading more items:", error); }).finally(() => { isLoading = false; }); } } window.addEventListener("scroll", onScroll); });
Join Our Newsletters

Sign up by email to receive news.

© 2025 Manila Bulletin The Nation's Leading Newspaper. All Rights Reserved.