Built in 1934, the 220-foot (67-meter) bridge is a Town Lattice truss construction over two spans. Its WGCB number is 01-05-07. The Horton Mill Covered Bridge was listed on the National Register of Historic Places on December 29, 1970, the first covered bridge in the southeastern United States to be added. At 70 feet (21 m), it is the highest covered bridge above any U.S. waterway. It was reopened on March 11, 2013 after being closed in 2007 due to vandalism. The bridge is currently open to motor vehicle traffic. However, there is only one lane and the posted speed limit is 5 MPH. The Horton Mill Covered Bridge is maintained by the Alabama Historical Commission, Blount County Commission and the Alabama Department of Transportation.