Clik Image for larger view
GPS: N 39.22183, W 76.71318
Railroad: CSX Baltimore Division, Old Main Line
Railfan Access: River Road offers a limited view, trees limit the view.
Description: The Thomas Viaduct spans the Patapsco River and Patapsco Valley between Relay and Elkridge, MD. It
was commissioned by the Baltimore and Ohio Railroad; built between July 4, 1833, and July 4, 1835; and named for
Philip E. Thomas, the company's first president.
At its completion, the Thomas Viaduct was the largest bridge in the United States and the country's first multi-span
masonry railroad bridge to be built on a curve. It remains the world's oldest multiple arched stone railroad bridge. In
1964, it was designated as a National Historic Landmark. The viaduct is now owned and operated by CSX
Transportation and still in use today, making it one of the oldest railroad bridges still in service. - Wikipedia
Denver Todd is The Gregarious Railfan
Todd Sestero publishes the RAILFAN GUIDES of the U.S.
Disclaimer: I have not been to this location. Info is from the internet. I would welcome pictures, additions, or
corrections to this page. Pictures and new info will be credited on the page. e-mail me at firstname.lastname@example.org