Has DPWH our geniuses thought of something similar for Bicol? We had massive budget for Bicol. P61 billion for the last two years? We can build open impounding pond or lakek for flood control. The idea of flood control is to slow down the flow (vs storm drainage to speed up a low. This post studied flood control early on)
Did their respresentation let them down?
We can add reforestation reclaiming riverways and waterways from river bank projects.