The Thomas Johnson Polygonal Barn was a historic building located near

Wellman Wellman may refer to: * ''Wellman'' (film), a 2003 Croatian documentary film about a well excavator *Wellman House, a historic site in Friendship, New York Cities and communities *Wellman, Iowa, a city in Washington County, Iowa, near Iowa City *W ...

in rural Washington County, Iowa, United States. The 16-sided building measured in diameter. The structure was covered in red vertical siding and it was topped by a sectional

conical A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex. A cone is formed by a set of line segments, half-lines, or lines conn ...

roof, with windows on the south side and an aerator. The numerous windows and the 15 hog pens that were around its perimeter suggests that this was built as a hog barn as light and ventilation in hog barns were a concern in the early 20th-century. with It was listed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...

in 1986. The barn has subsequently been torn down, and it was removed from the National Register in 2014.

References

Buildings and structures in Washington County, Iowa Barns on the National Register of Historic Places in Iowa Polygonal barns in the United States National Register of Historic Places in Washington County, Iowa Former National Register of Historic Places in Iowa {{Iowa-struct-stub