Chapman-Beverley Mill in Broad Run, an 18th- and 19th-century gristmill considered to be among the tallest stacked stone buildings in the country, was damaged by arson in the late 1990s and requires maintenance to slow its deterioration, Preservation Virginia said.

The grist mill was built in 1742 on the border between Fauquier and Prince William counties. The TTMAC took over the mill and associated property soon after arson nearly destroyed the structure in 1998. The walls of the mill were stabilized, making it possible to open the mill to the public on weekends.

With the mill now stabilized, plans call for pedestrian pathways around the mill for views of the millpond, the sluice gate, the flume and the 29-foot mill wheel. Long-range plans call for getting the mill wheel turning to produce a bit of hydro-electricity, Allshouse said.