Hawaii just got hit with something it hasn’t seen in over two decades. Heavy rains pounded the islands this week, turning neighborhoods into rivers and leaving residents scrambling for higher ground. But here’s the thing that should keep you up at night: a 120-year-old dam is sitting dangerously close to catastrophic failure.
We’re talking about the Wahiawa dam, built back in 1906 when President Theodore Roosevelt was still in office. The structure was reconstructed after it collapsed in 1921, and it’s been operating ever since. Now, as water levels climbed to just six feet below capacity during the worst of the flooding, officials realized they were staring down the barrel of a potential disaster.
When Infrastructure Becomes a Ticking Clock
The numbers tell you everything you need to know about how serious this is. Parts of Oahu got drenched with 8 to 12 inches of rain overnight. The island’s highest peak, Kaala, received nearly 16 inches in a single day. That’s not a rainstorm. That’s nature asserting dominance.
Governor Josh Green warned that damage could exceed $1 billion. We’re talking about destroyed homes, damaged airports, flooded schools, and a hospital in Maui that took a hit. About 5,500 people were ordered to evacuate from areas near the dam, and crews had to airlifted 72 kids and adults from a youth camp on Oahu’s west coast.
The state’s most serious flooding before this happened back in 2004, when the Manoa floods destroyed homes and even damaged a University of Hawaii library. This week’s deluge has already surpassed that catastrophe in scale and intensity.
The Real Problem Nobody Wanted to Fix
Here’s where this gets frustrating. The state has known about the Wahiawa dam’s problems for years. The government sent Dole Food Company four separate notices of deficiency starting in 2009. Five years ago, they even fined Dole $20,000 for not addressing safety issues on schedule.
In response, Dole basically said, “You know what? Take it.” The company proposed donating the dam and its reservoir to the state, but only if Hawaii agreed to fix the spillway and handle all future safety requirements. The state passed legislation in 2023 to acquire it and even allocated $5 million for the purchase and $21 million for repairs and upgrades. Sounds good, right?
Except the transfer hasn’t happened yet. A state board was scheduled to vote on the acquisition the following week. So there you have it: a critical piece of infrastructure that could literally kill people if it fails, and the paperwork still isn’t done.
The Climate Connection Nobody Can Ignore
Scientists have been clear about this for years. The intensity and frequency of heavy rains in Hawaii have increased because of human-caused global warming. These winter storm systems called “Kona lows” bring moisture-laden air that’s gotten more aggressive over time. Last week, another Kona low dumped 10-plus inches across the Hawaiian islands. This week’s system came right on top of already-saturated soil.
You can’t talk about infrastructure failures in 2024 without acknowledging climate reality. The dams built for a different climate are now facing weather patterns their designers never contemplated. The Wahiawa dam is operating under conditions it wasn’t engineered for.
What Happens When Personal Drones Get in the Way
This is a weird subplot that reveals something about how people respond to crisis. Search and rescue crews were trying to locate stranded residents by air and water. They were hampered by people flying personal drones to capture footage of the flooding. When people are missing and potentially in danger, civilians getting aerial selfies isn’t just annoying, it’s genuinely dangerous.
The National Guard and Honolulu Fire Department had to coordinate air operations while dodging unauthorized drone traffic. It’s a microcosm of how individual actions, even well-intentioned ones, can complicate emergency response.
What Comes Next
The state did get federal support commitments from the White House. No deaths were reported, and while about 10 people needed hospital treatment for hypothermia, authorities managed to avoid a worst-case scenario. But “avoided” isn’t the same as “solved.”
More rain was forecasted for the next few days. Officials warned that 6 to 8 inches could fall on Oahu in the following two to three days. The dam’s water level receded late Friday, but that fragile window could close fast if the weather continues.
The fundamental issue remains unresolved: Hawaii has 132 regulated dams across the state, most built as part of sugar industry irrigation systems back when nobody was thinking about hundred-year storms hitting every decade. The Wahiawa dam is just the most visible example of infrastructure built for a world that no longer exists, now facing a climate that’s becoming increasingly unforgiving.
Sometimes you have to wonder whether we’re good at learning from warnings before they turn into catastrophes.
