Heavy rains have triggered widespread evacuations on the north shore of Oahu, Hawaii, as the state experiences its worst flooding in 20 years.
Widespread Evacuations and Rescue Efforts
Oahu’s Department of Emergency Management issued urgent warnings for residents in communities like Waialua early Saturday morning. Residents in the Waialua area were urged to “LEAVE NOW” due to the high risk of access road failure. Evacuation orders are currently in effect for nearly 5,500 people north of Honolulu.
So far, no deaths have been reported, but over 200 people have been rescued from floodwaters. Ten individuals have been hospitalised for hypothermia. A youth camp run by Our Lady of Kea’au was evacuated, with 72 adults and children airlifted to safety.
Dam Threat and Potential Damage
A significant concern is the Wahiawa dam, described as being “at risk of imminent failure.” A 2022 report from the Hawaii Department of Land and Natural Resources identified the dam as a “high hazard potential dam,” where failure would likely result in loss of life.
Governor Josh Green estimates the damage could exceed $1 billion. He described floodwaters in some areas as “chest-level.” Water levels at the dam rose to 25.6 metres (84 feet) on Friday, just 1.8 metres (6 feet) below capacity.
Honolulu Mayor Rick Blangiardi stated that hundreds of homes have been affected, and the full extent of the damage remains unknown. Oahu is expected to receive an additional 15 to 20cm – 6 to 8 inches – of rain over the next few days. Blangiardi described the damage as “catastrophic.”
Frequently Asked Questions
What areas are under evacuation orders?
Evacuation orders are in effect for nearly 5,500 people in the Waialua area, north of Honolulu.
What is the status of the Wahiawa dam?
The Wahiawa dam is “at risk of imminent failure,” according to officials.
How many people have been rescued?
At least 200 people have been rescued from the floodwaters, and ten have been hospitalised with hypothermia.
As more rain is forecast for the Hawaiian islands, will emergency services be able to continue to manage the unfolding crisis?
