Dams built to prevent coastal flooding can worsen it

The common practice of building dams to prevent flooding can actually contribute to more intense coastal flood events, according to a new study. By analyzing data and measurements from Charleston Harbor, South Carolina, dating back more than a century, researchers determined that coastal dams don't necessarily mitigate flooding. Dams can either increase or decrease flood risks, depending on the duration of a surge event and friction from the flow of water.

from Latest Science News -- ScienceDaily https://ift.tt/KeF7vTD

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