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Claimed To Be World’s Oldest Railroad Bridge
In southwest Baltimore, near the Mount Clare station stands what’s claimed to be “the world’s oldest railroad bridge still in use.” The 312ft single track Carrollton Viaduct over the Gwynns Falls River in Baltimore was built in 1829.
The two-arch stone bridge is believed to be the first masonry railroad bridge built in the United States. It cost around $58,000 to construct using around 12,000 blocks of granite. An 80-foot arch spans the Gwynns Falls, while a much smaller 18-foot span crosses an old wagon road.
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