Our Concrete Amnesia Is Drowning Iloilo

The water has receded, for now. But as residents across nearly 100 barangays in Iloilo City bail out their homes and tally their losses, the aftermath of tropical storms “Crising,” “Dante,” and “Emong” leaves behind a bitter and familiar question: Why does this keep happening?

The numbers are grim. The recent onslaught affected over 54,000 Ilonggos in the city and contributed to a regional infrastructure damage bill of over PHP161 million. Mayor Raisa Treñas-Chu correctly identified the need for better barangay-level disaster training and improved coordination with national agencies. But these measures, while necessary, treat the symptoms of a much deeper disease. Our city is suffering from a case of concrete amnesia.

The “persistent flooding” the Mayor speaks of is not merely a consequence of stronger typhoons or clogged canals. It is a failure of memory, an institutional forgetting of the land upon which our city was built. Iloilo City grew from a delta, a low-lying marshland historically crisscrossed by a web of rivers, tidal creeks, and wetlands. The Iloilo and Jaro Rivers were not just lines on a map; they were the arteries of a complex water system with countless smaller veins – the esteros – that acted as natural flood drains, absorbing and channeling rainfall out to sea.

Over decades of development, we have systematically erased this geography. In the name of progress, we filled the wetlands, narrowed the rivers, and buried the esteros under subdivisions, malls, and roads. We have laid asphalt and concrete over the earth’s natural memory, and now we act surprised when the water reclaims its ancestral paths. The recurring floods in areas of City Proper, Molo, and Jaro are not random; they often correspond to the ghost-geography of these forgotten waterways. Our modern engineering, focused on bigger pipes and higher floodwalls, is a brute-force approach that fights a losing battle against the city’s unchangeable nature. We are treating a complex hydraulic problem as a simple plumbing issue.

This flawed approach is unsustainable. We cannot keep pouring concrete over our problems and expect them to disappear. It is time to move past blame and dig for real solutions—literally.

The path to a flood-resilient Iloilo begins not with a bulldozer, but with an archivist. The city government, in full partnership with the Department of Public Works and Highways, must champion the creation of a comprehensive “historical hydrology map.” This is no fanciful academic exercise; it is an essential tool for 21st-century urban planning.

The first step is to unearth the blueprints of our past. We must digitize Spanish colonial and American-era maps that meticulously chart the city’s original waterways and topography. These documents, stored in national archives and libraries, hold the key to understanding the natural flow of water we have spent a century trying to defy.

Second, these historical maps must be integrated with modern GIS data from the City Planning and Development Office. By overlaying the past with the present, we can create a powerful visual tool that shows precisely where our modern infrastructure conflicts with our historical landscape. This map will reveal why certain new developments flood while older districts remain dry. It will provide an evidence-based foundation for reforming zoning laws and building codes.

Finally, this technical data must be enriched with human knowledge. We must systematically interview community elders in our 180 barangays, documenting their oral histories of past floods. Their memories—of where the water went during Typhoon Frank, which shortcuts became impassable, which evacuation centers have also flooded in the past—are an invaluable dataset that no satellite can provide.

Creating this integrated map is the true meaning of coordination. It is the foundation for a “Plan A and Plan B” rooted in reality, not just reaction. It will ensure that new drainage projects work with the landscape, not against it, channeling water along paths of least resistance. The blueprint for a safer Iloilo will not be found in a new engineering manual alone. It is waiting to be rediscovered in our archives and in the memories of our people. It is time to cure our concrete amnesia and remember the land we call home.