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Railroad Building in Virginia (1827 to 1860) - Virginiahistoryseries.org

Railroad Building in Virginia (1827 to 1860) - Virginiahistoryseries.org

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Thomas Viaduct (on the B&O RR)<br />

spans the Patapsco River and<br />

Patapsco Valley between Relay and<br />

Elkridge, MD (1833-35) It was the<br />

largest bridge <strong>in</strong> the nation and <strong>to</strong>day<br />

its still the world's oldest multiple<br />

arched s<strong>to</strong>ne railroad bridge

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