Ongoing public works projects in Metro Manila may cause flooding, Chairman Francis Tolentino of the Metropolitan Manila Development Authority (MMDA) said on Friday.
The flooding could be averted, however, if waterways and drainages in the region were clog-free, Tolentino added.
He said during the rainy season, garbage blocking waterways causes immediate flooding.
“There are some flood-prone areas where there is engineering intervention that may cause flooding,” he said, apparently referring to ongoing drainage improvement projects of the Department of Public Works and Highways (DPWH) in many parts of Metro Manila.
The MMDA has conducted the Estero Blitz program or dredging of waterways and drainages in the region to prevent floods, Tolentino added.
Dredged were Veinte Reales and Tanigue creeks in Caloocan City; Letre Open Canal in Tonsuya (Malabon City) and Pinagsabugan Creek in Longos (also in Malabon City); and Tanque Creek, NIA Road, Quezon City.
The MMDA also dredged Mariblo Creek, Barangay Bungad, Quezon City; Concepcion Creek/Bayan Bayanan Outfall, Concepcion, Marikina City; Hagonoy Retarding Pond/Hagonoy Creek, Hagonoy, Taguig City; and Sapang Buwaya Creek, San Isidro, Paranaque City.
Pasong Diablo Creek, Alabang, Muntinlupa City; Maricaban Creek, Pasay City; Estero Tripa de Gallina, Buendia Avenue to Zobel Roxas, Pasay, and its Malate (Manila) side; and Estero de Pandacan in Pandacan, Manila, were declogged.
MMDA personnel removed thousands of truckloads of garbage from various estuaries in the region.
Because of the DPWH drainage improvement projects, Tolentino said portions of thoroughfares have been closed to vehicular traffic, limiting the number of lanes available to motorists.
According to him, all pumping stations are ready for the rainy season.