The historic Stone Gates on Fort McCoy's South Post off of State Highway 16, originally built in 1941, are being renovated to bring the structures back to their original appearance.
The gates were determined eligible for inclusion on the National Register of Historic Places (NRHP) in 1996 for their historical significance as one of Fort McCoy's only remaining Works Project Administration (WPA)-era structures.
Mark McCarty, chief of the Fort McCoy Natural Resources Branch, said the last repair work was completed in 1996 when broken and collapsed stone areas and concrete caps were repaired. The cause of the damage was a high groundwater table.
Water infiltration and the freeze/thaw cycle are believed to have affected the gates, necessitating the current repair and maintenance to preserve the historic structure, he said.
The damage consisted of cracked and broken cement capstones, degrading mortar, inappropriately hard mortar in some areas, weather staining, moss growth, mineral efflorescence that caused discoloration and possible interior erosion, McCarty added.
TCI Engineers, Architects and Contractor of La Crosse was hired to oversee the repairs, said Dan Hanson, a Directorate of Public Works project manager. The contract directs the firm to restore the Stone Gate area as close as possible to its original condition.