[Alex Vucha for Shaw Media]
"[The damage] was not so significant where the whole building was lost," Gaines said. "It's likely in the $10,000 to $20,000 range."
The Marengo Fire Department is investigating the fire's cause. Highway 20 was closed for a short time during the emergency response but reopened early Tuesday.
Firefighters from Harvard, Genoa, Hampshire, Woodstock and Union also responded to assist Marengo crews.