After the bridge broke, the “dammed” water was released and floods receded, saving thousands of lives.

Source: https://newsinfo.inquirer.net/1845697/diyandi-festival-celebrates-harmony-among-iligan-citys-christian-muslim-and-higaonon-communities

For a time the rain dammed up by the accumulation of snow and ice, filled the streets, but most of it finally drained off before freezing weather set in that night.

Source: https://www.sabethaherald.com/2023/12/28/memories-19/

How a dammed river flows?

Source: https://indianexpress.com/article/upsc-current-affairs/upsc-essentials/upsc-essentials-weekly-news-express-rains-air-quality-subansiri-icelands-earthquakes-and-more-key-takeaways-and-points-to-ponder-9025983/