In 1969, engineers temporarily halted the roaring flow of water over the American side of Niagara Falls, unveiling a scene that was both unsettling and intriguing.
While the project’s purpose was to inspect erosion, what they found beneath the falls was far from just rock and sediment — it included a series of grim surprises hidden beneath the rushing waters.
The Power of Niagara Falls

Niagara Falls is renowned for its sheer force and volume. According to the Niagara Falls State Park website, an astonishing 3,160 tons of water cascades over the falls each second, plunging down at 32 feet per second.
This natural wonder attracts millions of visitors, drawing them to witness its impressive, raw power.
Diverting the Flow
Embed from Getty ImagesIn a bold move, the Army Corps of Engineers constructed an earthen dam to divert the American side’s water flow to the Canadian side.
As Snopes confirms, this was part of an extensive erosion control project. By halting the water, engineers hoped to study and better understand the impacts of erosion on the falls.
What They Found Beneath
Embed from Getty ImagesWhen the water finally stopped, engineers expected to find only rock formations and debris — but they were met with a disturbing sight.
Among the discoveries were the remains of two bodies: one belonging to a woman and another to a man. This eerie find transformed the engineering project into a more haunting investigation.
Discovering the Bodies

The decomposed body of the woman was uncovered first, according to The Toronto Sun, during the initial survey.
Engineers had initially been looking for a man seen leaping over the falls, and they discovered his body shortly after. The origins of these individuals remain a mystery to this day.
Unanswered Questions

Decades after the recovery of the bodies, details surrounding the man and woman remain unclear. It’s unknown when or how they came to be in the falls, and neither was identified. These lingering questions add an extra layer of intrigue to the already chilling discoveries made beneath Niagara’s waters.
Additional Finds

The bodies weren’t the only surprises waiting beneath the falls. Engineers also uncovered millions of coins scattered across the riverbed.
Likely tossed in by tourists over the years, these coins served as a reminder of the many hopeful wishes made at Niagara Falls, now exposed to daylight for the first time.
Conclusion of the Project

After six months of study, the engineers concluded that altering the rock base beneath the American Falls would be too costly.
Instead, they allowed nature to continue its course, leaving the rocks and remains undisturbed. The water was returned to its original flow, hiding the secrets beneath once more.
Today’s Niagara Falls

Though these chilling discoveries are now hidden under rushing water, Niagara Falls continues to awe visitors with its natural power and beauty.
Today, the falls do more than just attract tourists — they generate over 4 million kilowatts of electricity, a shared resource between the United States and Canada.
The temporary halt of Niagara Falls in 1969 provided a rare glimpse into what lay beneath its powerful current.

It revealed more than just rock and debris. The project served as a reminder that even natural wonders hold secrets, some grim and forgotten, waiting patiently beneath the surface of history and rushing water.