Dangerous flooding on Oahu prompts evacuations, warning of possible dam collapse

ABC News
March 20, 2026
3 min read

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Dangerous flooding on Oahu, Hawaii has prompted evacuations and warnings of a possible dam collapse.

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Heavy flooding has struck Oahu, Hawaii, forcing local authorities to evacuate residents and issue warnings of a potential dam collapse. The deluge has created dangerous conditions across the island, with officials mobilizing emergency response efforts to protect communities in the path of rising waters. A dam failure would catastrophically amplify flooding in downstream areas, putting additional lives and property at risk. The evacuations represent a precautionary measure as authorities assess whether the dam structure can withstand the current water pressure and flooding surge. Residents are being urged to move to higher ground and follow official guidance as the situation continues to develop.

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