Portage Railroad
Allegheny Township, Blair County, Pennsylvania
Marker Inscription
Here was No. 6 of the ten inclined planes used to carry canal boats by rail. Hollidaysburg to Johnstown. This unique engineering feat was completed in 1834. The road was 36 miles long.
Erected by Pennsylvania Historical and Museum Commission
The Story
The Allegheny Portage Railroad was a marvel of its age, completed in 1834 to carry canal boats over the mountains that blocked Pennsylvania's Main Line of Public Works between Hollidaysburg and Johnstown. Ten inclined planes, of which this was No. 6, hauled the boats and their cargoes up and down the slopes along a 36-mile route. The system let a single boat travel from Philadelphia toward Pittsburgh without unloading, briefly making the state a leader in transportation engineering.
Why it matters
The Portage Railroad was a bold answer to the challenge of crossing the Alleghenies and a key link in the canal era that knit the young nation's east and west together before the triumph of the railroad.
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Related events
- · Allegheny Portage Railroad
Themes & tags
Nearby & related markers
Portage Railroad
Juniata Township, PA · est. 1947
In the 1830s Pennsylvania stitched its canal system across the Allegheny Mountains with one of the boldest engineering answers of the age: a portage railroad that hauled entire canal boats up and over the ridge on a staircase of inclined planes worked by stationary steam engines and cables. This spot marks Plane No. 6 of the ten that lifted traffic between Hollidaysburg and Johnstown. Completed in 1834, the 36-mile line closed the last mountain gap in the water route from Philadelphia to Pittsburgh.
Portage Railroad
Cresson Township, PA · est. 1947
This spot marks the location of Plane No. 5, one of ten inclined planes on the Allegheny Portage Railroad, an ingenious system that hauled canal boats over the mountains by rail between Hollidaysburg and Johnstown. Completed in the 1830s, it closed the last gap in Pennsylvania's Main Line of Public Works, allowing freight and passengers to cross the formidable Allegheny ridge. The road to Lilly still traces the old route over the mountain.
Altoona
Altoona, PA · est. 1947
Altoona was born of the railroad, laid out in 1849 as the mountain-base terminal from which the Pennsylvania Railroad pushed its tracks westward over the daunting Allegheny front. Within a generation the town's yards and shops made it one of the great railroading centers of the nation. In 1867 it hosted a War Governors' Conference, one of several wartime and postwar gatherings that made the city a meeting ground for state leaders.
Canal Basin
Hollidaysburg, PA · est. 1982
At Hollidaysburg, the 127-mile Juniata Division of the Pennsylvania Canal met the Allegheny Portage Railroad, an ingenious system that hauled canal boats over the mountains toward Johnstown, 36 miles west. The canal opened in 1832 and the railroad in 1834, together forming a continuous route across the formidable Allegheny barrier. Engineers marveled at the portage line, which climbed nearly 1,400 feet in just ten miles using inclined planes.