Wilson's Bridge is a bridge near Hagerstown, Washington County, Maryland, United States. It originally carried the Hagerstown and Conococheague Turnpike, the National Road, across Conococheague Creek 7 miles (11 km) west of Hagerstown. The five-arched structure, the longest of the county's stone bridges, is 210 feet (64 m) in length and is constructed of coursed local limestone. The bridge was erected in 1819 by Silas Harry, who had built similar bridges in Pennsylvania. The bridge was closed in June 1972 when it was damaged by floods which occurred during Tropical Storm Agnes.
Wilson's Bridge was listed on the National Register of Historic Places in 1982.
- Wilson's Bridge, Washington County, including photo from 1984, at Maryland Historical Trust
- Historic American Engineering Record (HAER) No. MD-41, "National Road, Wilson Bridge, Spanning Conococheague Creek at Route 40 (Old), Hagerstown, Washington County, MD", 17 photos, 2 measured drawings, 19 data pages, 2 photo caption pages
- Historic American Buildings Survey (HABS) No. MD-139-A, "Bridge over Conococheague River, Old National Trail, Hagerstown, Washington County, MD", 2 photos