The bridge is named in honor of Charles Carroll of Carrollton (1737–1832), of Maryland, known for being the last surviving signer of the Declaration of Independence, the only Roman Catholic in the Second Continental Congress (1775–1781), and wealthiest man in the Thirteen Colonies of the time of the American Revolutionary War (1775–1783).
[3][4] It was named after Charles Carroll of Carrollton (1737–1832), the last living signer of the Declaration of Independence and a director of the Baltimore and Ohio Railroad, who laid the cornerstone on July 4, 1828.
Builder Caspar Wever and designer James Lloyd completed the structure for the railroad in November 1829, at an officially listed cost of $58,106.73 (equal to $1,662,579 today).
Andrew Jackson, the first President of the United States to ride on a railroad train, crossed the bridge on a trip between Ellicott's Mills and Baltimore on June 6, 1833.
The Carrollton Viaduct has provided continual service to the Baltimore and Ohio Railroad and its modern corporate successor, CSX Transportation.