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1829, James Lloyd. Across Gwynn’s Falls

The first stone masonry railroad bridge built in the United States, this 297-foot-long viaduct carried the earliest section of the B&O track across Gwynn’s Falls on the way to Ellicott’s Mills. The finely dressed ashlar stonework includes an arch 80 feet in diameter spanning the water and a smaller arch between two of the buttresses to accommodate a wagon road. Gwynn Falls Trail, accessible from Washington Boulevard, uses the former wagon road right-of-way under the viaduct, which still carries modern rail traffic like its larger counterpart, Thomas Viaduct (CM15)

Writing Credits

Lisa Pfueller Davidson and Catherine C. Lavoie


What's Nearby


Lisa Pfueller Davidson and Catherine C. Lavoie, "CARROLLTON VIADUCT", [, Maryland], SAH Archipedia, eds. Gabrielle Esperdy and Karen Kingsley, Charlottesville: UVaP, 2012—,

Print Source

Buildings of Maryland, Lisa Pfueller Davidson and Catherine C. Lavoie. Charlottesville: University of Virginia Press, 2022, 206-207.

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