Built in 1884 by Benton Jones, the Hogback Covered Bridge is a covered timber Town lattice truss overlaid by a queenpost frame, measuring 160 feet long, with a 98-foot truss and two 62-foot approaches, and 15 feet wide. Jones was responsible for the last all-timber truss built in the county, known locally as the Hogback Covered Bridge, which remains in its original location. Hogback takes its name from the limestone ridge that forms the west end of the valley. It was renovated in 1992 at a cost of $118,810. During the 1870's, Madison County contracted for a series of timber trusses covered with roofs and walls. It is not known how many covered bridges were built in Iowa between 1850 and 1900, but a conservative estimate would be a hundred or so. Almost all were destroyed by flooding, fire, collisions, or demolition, leaving only a few remaining examples.