President Ferdinand Marcos Jr. has ordered a study on building weirs to manage water flow from the Sierra Madre and mitigate flood risks in Rizal province and Metro Manila.
The pronouncement was made during a briefing in San Mateo addressing the impact of Typhoon Carina and the enhanced southwest monsoon.
A weir is described as a small barrier or dam that controls water levels by slightly raising them upstream, serving to prevent floods, measure flow, and store water.
President Marcos identified unimpeded water flow from the Sierra Madre as a significant contributor to severe flooding in the affected regions.
He explained that weirs allow water to pass through while slowing its speed, unlike dams which are typically built when rivers have substantial water flow.
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