Carrollton Viaduct (Baltimore, Maryland)

 place with historical importance, NRHP - National Register of Historic Places, railway bridge, 1820s construction, viaduct (bridge construction style), U.S. National Historic Landmark

The world's oldest railroad bridge still in use, and the earliest stone masonry bridge built for railroad use in the United States in 1829. Designed by B&O engineer Caspar Weaver and built in 1828-1829 by James Lloyd (of the Lloyd family of Chambersburg, Pennsylvania, prominent masons who were responsible for many of Washington County's stone arch highway bridges). The 312-foot-long bridge consists of a full-centered arch with clear span length of 80 feet above Gwynns Falls and a 16 foot stone arch for a wagon road. A white cornerstone at one end of the bridge bears the inscription "James Lloyd of Maryland, Builder A.D. 1829."

Charles Carroll of Carrolton performed the ceremony of laying the last stone in December 1829. The President and directors of the B&O Railroad unanimously resolved that this structure be named the Carrolton Viaduct. Horse drawn railcar excursions to the viaduct began on Jan. 7, 1830 for a ticket price of only nine cents.

www.trainweb.org/oldmainline/oml1a.htm

Historic American Buildings Survey/Historic American Engineering Record
memory.loc.gov/cgi-bin/ampage?collId=hhphoto&fileNa...'s%20Falls%20near%20Carroll%20Park,%20BALTIMORE,%20Baltimore%20County,%20MD&displayType=1&itemLink=D?hh:55:./temp/~ammem_BkW0::