In early March 2022, as Russian troops approached Kyiv, marines built three pontoon bridges to gain a foothold across the Irpin River. But by blowing up a dam, Ukrainian forces flooded the area -- and pushed back Russian troops who abandoned their armor in the flood waters.

https://www.rferl.org/a/ukraine-russia-moshchun-irpin-kyiv-war-battle/32286263.html