Published on: June 29, 2026, 07:21h.
Updated on: June 28, 2026, 08:56h.
The Hoover Dam may eventually cease to produce electricity, but the myths surrounding it are likely to persist indefinitely. A modern speculation, fueled by TikTok, claims that if you pour water over the dam’s edge, it won’t fall but instead appears to spray upward, as if obstructed by an invisible force field.
The trend took off this March when Eddie Vasquez ventured to the dam to explore the myth he’d heard throughout his childhood. The Las Vegas native’s TikTok video garnered 80 million views, resulting in an article in People magazine and a flood of queries from viewers perplexed by the concepts of physics.
“Many comments suggested that I faked the video or reversed it,” Vasquez shared with People. “That’s absolutely not the case; the video is genuine.”
Gravity Defied?
If there’s any doubt that social media often misrepresents physics, consider the 11 million-view YouTube clip that has captivated many.
Water indeed can and does fall straight down at Hoover Dam, but this occurs only under specific conditions. In most situations, strong updrafts created by wind currents in Black Canyon—a natural wind tunnel—interact with the dam’s towering curved wall, causing water to spray upwards.
These updrafts can exceed 50 mph, making it appear as if gravity is being defied.
This unique occurrence is known as ridge lift or slope lift, the same aerodynamic principle used by glider pilots to stay aloft—though they don’t typically film themselves and post on TikTok with titles like “BRO WHAT?”
On tranquil days, spilled water behaves predictably; however, influencers tend not to post those videos since “water behaving normally” isn’t exciting enough to attract brand deals.
Clearing Up the Myth
What the Hoover Dam actively prevents is water from spilling over its top. It features two substantial spillways—each positioned 27 feet below the crest—that are meticulously designed to capture and redirect any water that rises that high. Each one can manage 200,000 cubic feet of water per second, comparable to the flow of Niagara Falls.
The spillways are crucial in preventing the dam from overtopping, safeguarding the generators, as well as ensuring that the roadway above remains safe and free from unexpected deluges.
This situation has nothing to do with the supposed reverse flow of water. However, some individuals mistakenly link the purpose of the spillways to the “defying gravity” narrative, overshadowing the important functions of these spillways, especially now that Lake Mead is currently at just 29% capacity and on the decline.
Shoutout to everyone participating in this curious experiment; eventually, much of the water you pour will make its way into the Colorado River, and every drop counts!
Watch for “Vegas Myths Busted” every Monday on Casino.org. Explore VegasMythsBusted.com for previously debunked Vegas myths. Have a Vegas myth you’d like to investigate? Reach out to [email protected].