A fire last night did damage to a business on Waupaca’s east side. The Waupaca Fire Department was called to the fire at Alter Materials just before 9:30, but they were delayed by trains that were blocking both access roads to the facility. Once on the scene, they found flames showing and heavy smoke coming from the structure. Crews were able to extinguish the fire in the building and the conveyor belt leading to the sorter. Firefighters from Weyauwega assisted at the scene. Damage of about 35-thousand dollars was estimated. Crews were on the scene for about an hour and a half.