What is the name of the oldest operational railroad bridge in the United States, which is part of the B&O Railroad?
Carrollton Viaduct
Harpers Ferry Bridge
Potomac Crossing Bridge
Appalachian Viaduct
Answer
The Carrollton Viaduct is the oldest operational railroad bridge in the United States and is part of the B&O Railroad. This historic bridge is a testament to the engineering and construction techniques of the early American rail system.
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