Pennsylvania Canal (Eastern Division)
Reed Township, Dauphin County, Pennsylvania
Marker Inscription
This Division was built, 1826-33; operated until 1901. Here, at old Clark's Ferry Towpath Bridge, the State's great inland canal traffic in iron, coal, and lumber crossed the Susquehanna. Lykens Valley coal trade, by way of Wiconisco Canal, joined it on the east bank.
Erected by Pennsylvania Historical and Museum Commission
The Story
The Eastern Division of the Pennsylvania Canal, built between 1826 and 1833, carried iron, coal, and lumber along the lower Susquehanna and remained in use until 1901. Here at the old Clark's Ferry towpath bridge, canal boats crossed the wide river to continue their journeys. The Lykens Valley coal trade fed into the system from the east by way of the Wiconisco Canal, adding the region's anthracite to the flow of commerce.
Why it matters
This stretch shows how canals stitched Pennsylvania's coal and iron country into national markets, powering the industrial growth that would define the nineteenth century.
The story behind this marker
AI contextThe era
By the second quarter of the nineteenth century, Pennsylvania was becoming a workshop of raw materials — iron from its furnaces, coal from its hills, lumber from its vast forests. But raw materials are worth little where they lie; their value comes when they can be moved to the mills, cities, and markets that hunger for them. That was the challenge the canal age set out to solve.
The lower Susquehanna, wide and often unruly, was both a highway and an obstacle. A canal running along its banks could carry heavy cargo cheaply, but the river itself still had to be crossed and contended with, and engineers of the era grew adept at bending water to commercial ends.
This stretch belonged to that world of the early republic reaching toward industry — a time when a canal was cutting-edge infrastructure, and a well-placed crossing could open a whole valley's wealth to the wider economy.
People & events
The Eastern Division of the Pennsylvania Canal was built between 1826 and 1833 and remained at work for the better part of a century, operating until 1901 — a long working life that saw it carry the iron, coal, and lumber of the region along the lower Susquehanna.
The drama of this particular place was the river crossing. Here, at the old Clark's Ferry towpath bridge, the state's great inland traffic passed over the wide Susquehanna to continue on its way. A structure that let canal boats cross a major river was a serious feat of its day, and a vital seam in the network.
The scene grew richer still where another line fed in. The Lykens Valley coal trade reached this system from the east by way of the Wiconisco Canal, adding the region's anthracite to the flow of commerce and turning this crossing into a gathering point for the valley's mineral wealth.
Its place in the American story
This stretch of canal shows, up close, how the waterways of the early republic stitched America's coal and iron country into far larger markets. Anthracite that began in a mountain valley could join a broader current of trade and travel toward the cities and industries that burned and forged it.
Coal and iron were the sinews of nineteenth-century industrial growth, and the transport systems that carried them were as important as the mines and furnaces themselves. A crossing like this one was part of the circulatory system of an industrializing nation.
That the division kept working into 1901 tells its own story. It outlived the first flush of the canal age and labored on well into the railroad era, a reminder that new technologies rarely erase the old ones overnight — the two ran side by side for decades, together powering the industrial expansion that reshaped the country.
If you visit
Stand where you can take in the breadth of the Susquehanna here, and the story almost tells itself: this is a place defined by the crossing of a great river. Picture laden boats making that passage, and the engineering nerve it took to send canal traffic over open water.
The river corridor is the thing to read. Look for the flat old grades and any surviving traces of the canal and its crossings, and notice how the modern routes and the river all squeeze through the same gap — terrain that funneled travel then still funnels it now.
For a road trip along the lower Susquehanna, this marker pairs naturally with the region's other canal sites into a story of coal, iron, and moving water. Give yourself a moment by the river to feel the scale of what once passed through — a valley's mineral wealth, floating quietly toward the wider world.
Written by AI to add context, grounded in the marker’s inscription and the historical record. The inscription above is the original, unaltered text.
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Nearby & related markers
Pennsylvania Canal (Juniata Division)
Penn Township, PA · est. 1952
In the canal-building fever of the late 1820s, Pennsylvania dug the Juniata Division as one link in its ambitious Main Line of Public Works, a state-financed answer to New York's wildly successful Erie Canal. Completed by 1833, this 127-mile stretch of water carried boats up the Juniata Valley to Hollidaysburg, where the extraordinary Allegheny Portage Railroad hoisted them over the mountains. A stone aqueduct just west of here ferried the towpath and canal across the river itself, and its abutment and piers still stand as ghosts of a vanished waterway.
Pennsylvania Canal
Reed Township, PA · est. 1952
Between 1826 and 1834 Pennsylvania built a sprawling state-owned system of canals and railroads meant to link Philadelphia, Pittsburgh, and Erie in a single web of inland trade. It embraced six main canal divisions and two railroads, a public works gamble to keep the state competitive with New York's Erie Canal. Here the Susquehanna, Juniata, and Eastern Divisions came together in a canal basin, one of the network's key junctions.
Pennsylvania Canal (Susquehanna Division)
Watts Township, PA · est. 1952
Running roughly 41 miles from Duncan's Island up to Northumberland, the Susquehanna Division opened around 1831 and worked until the turn of the twentieth century. Its thirteen locks, seven aqueducts, dam, and towpath bridge were a considerable feat of hand-dug engineering following the river's course. Travelers along this road can still spot traces of the old canal cut into the landscape.
Rockville Bridge
Marysville, PA · est. 1986
At the turn of the 20th century the Pennsylvania Railroad was one of the mightiest corporations on earth, and it needed to move ever-heavier freight across the Susquehanna. Its answer, completed in 1902, was a colossal forty-eight-arch stone span—the longest stone masonry arch railroad bridge ever built. It was the third crossing at this spot, replacing a wooden bridge of the 1840s and an iron one of 1877, each outgrown as rail traffic exploded.