Despite the volume of rain, Marcos said the government, through the Department of Public Works and Highways, the MMDA and local governments, was continuing efforts to dredge waterways and upgrade drainage systems to reduce flooding.
“Before, there were areas where floodwaters reached the second floor. Now, they only reach knee level and some areas are no longer flooded. The water also subsides more quickly. Before, people had to wait two or three days for the floodwaters to recede. Now, the water is gone in less than a day,” he said.
“We have replaced the small pipes installed during the World War II era with larger ones to allow water to flow more quickly. We also have 73 functioning pumping stations,” he added.
Marcos said flooding and heavy rains brought by the southwest monsoon and typhoons had so far affected 4,700 barangays and 1.7 million families, leaving 27 people dead and 17 injured.
Help from Dutch firm
MMDA chairperson Don Artes said Dutch engineering and consultancy firm Haskoning was conducting a study on flood mitigation measures in Metro Manila.