America’s covered bridge era belonged to the nineteenth century, and bridges were enclosed to protect their wooden structural parts and decks from rain and snow and prevent decay, allowing covered bridges to last centuries while uncovered bridges would last about ten years. Built in 1872, the Buckeye Furnace Bridge is historically important as a truss built following the designs of the Smith Bridge Company, one of Ohio’s premier bridge builders and among the first in the nation to make covered bridges an industrial product. The bridge was built by Dency, McCurdy, and Company, a local firm that purchased the rights to use Smith’s design. It is 68.5 feet long and 16 feet wide, with a 58.5 feet clear span. The bridge used the Smith Truss plan, first patented in 1867 by Robert W. Smith of Tipp City, originally Tippecanoe, and later Toledo, Ohio. Smith would prefabricate a bridge in Toledo and ship the components to the erection site, sell the parts to another builder as in this case, or sell the plans to another builder or local official. At the beginning of the twenty-first century, increased traffic and overloading made replacement with a modern span necessary, and the Jackson County Engineer and the Ohio Historical Society moved the covered bridge adjacent to its original location.