Some more suggestions:
1. Dredge the Manggahan floodway 50% is now clogged so that floodwaters from Montalban and San Mateo cant drain fast enough to Laguna lake. DPWH see the massive clogging of Manggahan floodway
2. Dredge the Laguna lake to slow down the flow to Manila; scientists say that average depth of Laguna lake now is is 1 meter.
Stop reclamation As of now this post estimate that an area of about 100 hectares are reclaimed in Taguig, Taytay and Angono . Thats about 20 million cubic maters capacity of storage for Laguna lake for floodwater storage before releasing to Manila bay.
3. Widen the creeks at subd between Markina and Cainta. As of now they are narrow, are silted, narrow and populated by illegal settlers Big developers like Ayala and Ortigas deepen by ten meters and widen the creek to about 20 meters to prevent flooding. The other developers stick to the 3-4 meters creek In Taytay, there is so much flooding due to residents who claimed the river banks. Rivers are but 4 meters wide only
4, More discipline in solid waste disposal so that drainage canals and waterways do not get clogged
5. Build more underground cistern to store floodwater or Small Impounding Ponds
