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National Register of Historic Places

Thomas Viaduct, Baltimore & Ohio Railroad

Thomas Viaduct, Baltimore & Ohio Railroad is a historic place in Relay, Baltimore County, Maryland, listed on the United States National Register of Historic Places on October 15, 1966, and designated a National Historic Landmark. Its National Register reference number is 66000388.

Relay, Baltimore County, MarylandListed October 15, 1966NRIS #66000388★ National Historic Landmark
Photograph of Thomas Viaduct, Baltimore & Ohio Railroad
Photo: Thomas Viaduct, Baltimore & Ohio Railroad via Wikimedia Commons — see the file page for author and license. Image source
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Thomas Viaduct, Baltimore & Ohio Railroad

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About this place

What is Thomas Viaduct, Baltimore & Ohio Railroad?

The Thomas Viaduct is a viaduct that spans the Patapsco River and Patapsco Valley between Relay, Maryland and Elkridge, Maryland, USA. It was commissioned by the Baltimore and Ohio Railroad (B&O); built between July 4, 1833, and July 4, 1835; and named for Philip E. Thomas, the company's first president. Some claim it to be the world's oldest multiple arched stone railroad bridge. However, the Sankey Viaduct on the Liverpool and Manchester Railway was opened in 1830 and finally completed in 1833.

Source: Wikipedia, text available under CC BY-SA 4.0.

The record

Listing details

Name
Thomas Viaduct, Baltimore & Ohio Railroad
City
Relay
County
Baltimore County
State
Maryland
Listed on the National Register
October 15, 1966
NRIS reference number
66000388
Resource type
structure
National Historic Landmark
Yes
Coordinates
39.22199, -76.71321
When was Thomas Viaduct, Baltimore & Ohio Railroad listed on the National Register?

Thomas Viaduct, Baltimore & Ohio Railroad was added to the National Register of Historic Places on October 15, 1966.

Where is Thomas Viaduct, Baltimore & Ohio Railroad located?

Thomas Viaduct, Baltimore & Ohio Railroad is located in Relay, Baltimore County, Maryland at approximately 39.22199, -76.71321. See the map above.

Is Thomas Viaduct, Baltimore & Ohio Railroad a National Historic Landmark?

Yes. Thomas Viaduct, Baltimore & Ohio Railroad is designated a National Historic Landmark, the highest federal recognition for a historic place.

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