Bennett's Mill Covered Bridge, west of Greenup, Kentucky, carries Brown Covered Bridge Road over Tygarts Creek and was built in 1855. At 195 feet, it is the longest single-span covered bridge in Kentucky and a rare surviving example of a long wooden covered road span tied to the region's 19th-century transportation network. During the American Civil War, two hidden cannon defended it, adding an unusual military dimension to its transportation history. Its significance as both a local landmark and an important part of Kentucky bridge history was recognized in 1976 with its listing on the National Register of Historic Places.