I write historical fiction about the women history conveniently forgot—the ones who got thrown into the deep end of some genuinely terrifying history and figured out how to swim anyway. Right now, I’m preparing to publish The Undoing of Hannah Beck, a historical fiction novel about a young woman who in 1799 stows away on a flatboat out of Pittsburgh and ends up, of all places, in the hands of actual river pirates. This one started with a place I thought I knew.
When I started researching my first historical fiction novel, I expected to spend weeks learning about flatboats, frontier towns, and life on the Ohio River.
I didn’t expect to discover a place that brought nearly every westbound river journey to a halt.
I grew up not far from the Ohio. I’ve crossed it on bridges and even boated on it. Yet somehow, I never learned that for the first generation of Americans heading west, the river had a single natural obstacle—and it was notorious.
It was a two-mile stretch of limestone near present-day Louisville, Kentucky, where the river dropped twenty-six feet over jagged rock. The passage became known as the Falls of the Ohio, and for decades it controlled the movement of people and freight between Pittsburgh and New Orleans.
You heard it before you saw it
Despite the name, these weren’t dramatic falls like Niagara.
The river simply spread across a broad shelf of limestone, breaking into shallow, twisting channels between exposed rock. When the water was low, the route narrowed to little more than a rocky maze. Travelers wrote that they could hear the low, rolling thunder of the Falls five or six miles upstream. One Louisville hotel even advertised the sound as a feature—guests could fall asleep listening to the distant rush of the water.
It changed with the seasons
The truly dangerous part was that the Falls weren’t always dangerous.
In spring, high water covered the limestone ledge, and loaded boats typically floated safely across.
By late summer or autumn, however, everything changed. The river dropped, exposing broad shelves of limestone, and the safest opening could shrink to barely twelve feet wide—at a time when many flatboats were fifteen feet across.
My favorite detail from the research is almost impossible to believe. The one tool that helped boats cross more safely back in the day? Sledgehammers. As boats squeezed through the narrow passage, the men on board literally hammered and chipped away at the rock from the deck, widening the channel one trip at a time.
When the river fell even lower, merchants unloaded entire boats onto wagons, hauled the cargo around the rapids overland, floated the empty boats through, and reloaded everything downstream. Or, they waited for rain.
Either way, Louisville prospered because virtually every shipment moving between the upper Ohio Valley and New Orleans had to stop there.
An experienced pilot was worth every penny
Crossing the Falls safely required local knowledge, and that eventually came in the form of licensed pilots whose entire profession was guiding boats through the shifting channels.
They earned every dollar. The route changed constantly. Rocks shifted. Water levels rose and fell. The handful of men who truly knew the channel became some of the highest-paid pilots on the river, while strangers who ignored their advice often lost their boats—or worse.
One insurance company was still charging extra for boats attempting the passage after dark as late as the 1870s.
Then Lewis and Clark arrived
On August 31, 1803, Meriwether Lewis left Pittsburgh aboard the custom-built keelboat that would eventually carry the famous Corps of Discovery westward. Unfortunately, that year the Ohio River was extraordinarily low, and it took him forty-four days to reach the Falls.
His crew spent weeks dragging the boat over shallow riffles, unloading cargo, and, once at the Falls, hiring oxen to haul freight around it. Relieved of its weight, the boat itself could be floated or coaxed over the rocks before being reloaded on the western side.
It was there that he met William Clark as planned, and after recruiting additional men, the Corps of Discovery pushed off again—this time into history.
Solving the Falls problem took two centuries
People proposed building a canal around the Falls as early as the 1790s. Like many infrastructure projects, however, everyone agreed it was necessary but no one could decide who should build it.
Construction finally began in 1826, and the Louisville and Portland Canal opened four years later. Ironically, it was already becoming too small for the rapidly growing steamboat trade. It had to be expanded. Then expanded again. And again. Modern locks and dams eventually submerged the rapids altogether, solving a navigation problem that had frustrated river traffic for more than two centuries.
Standing where history happened
The rapids are gone now, but the limestone shelf remains. If you visit Falls of the Ohio State Park in Clarksville, Indiana, you can walk across the same rock that once stopped America’s westward traffic. It’s also home to one of the world’s largest exposed Devonian fossil beds.
Standing there, it’s difficult to imagine the low, rolling thunder that early travelers described—loud enough to hear for miles. One local historian who remembered the original Falls wrote sadly that by the early twentieth century, there wasn’t even a whisper of it left.
Why this matters (to me, anyway)
I originally started researching river travel because my novel’s protagonist, Hannah Beck, travels down the Ohio in search of her brother. I expected to gather enough detail to write a convincing river scene, colored in part by my own much tamer experiences on the Ohio.
Instead, I discovered something completely unexpected: the Falls—and how one stretch of river held the fate of westward expansion in its current.
History had already written the scene. I just had to get out of its way.
Sources and further reading
- Falls of the Ohio Foundation, “Eyewitness Accounts of Encountering Falls of the Ohio Rapids,” compiled by Paul Olliges — an extraordinary chronological collection of first-hand accounts from the 1700s to the early 1900s, drawing heavily on the holdings of The Filson Historical Society. Most of the traveler accounts above come from here. fallsoftheohio.org
- The Filson Historical Society, Louisville, KY — travel narratives, journals, and manuscript collections.
- Leland R. Johnson and Charles E. Parrish, Triumph at the Falls: The Louisville and Portland Canal, U.S. Army Corps of Engineers, Louisville District, 2007.
- Lewis and Clark in Kentucky (lewisandclarkinkentucky.org) and Discovering Lewis & Clark (lewis-clark.org) — on the 1803 descent of the Ohio and the meeting at the Falls.
- Falls of the Ohio State Park, Clarksville, Indiana — fossil beds and interpretive center.
- Zadok Cramer, The Navigator (Pittsburgh, 1801–1824) — available in digitized editions online.