On May 21, 1999, at 1215 Pacific daylight time, a Cessna 182N, N92887, registered to and operated by Butler Aircraft Company as a 14 CFR Part 91 personal flight, collided with a road sign during the landing roll on a road near Granite, Oregon. Visual meteorological conditions prevailed at the time and no flight plan was filed. The airplane was substantially damaged and the commercial pilot and his passenger were not injured. The flight originated from Redmond, Oregon, about one hour and 30 minutes prior to the accident. During a telephone interview and subsequent written statement, the pilot reported that he intended to land on a road located about one mile west of town. The pilot stated that he first flew over the road to check for obstacles. The pilot did not see any obstacles and set-up for the landing. The pilot reported that the airplane touched down further along the road than he intended. During the landing roll, the left wing tip struck a road sign that the pilot did not see from the air. The airplane veered slightly to the left of the roadway centerline. Approximately 100 feet further, the outboard section of the left wing collided with a tree. The airplane veered further off the road onto the shoulder and subsequently collided with a mound of dirt approximately 200 feet from the tree. The aircraft turned about 90 degrees from the direction of travel before coming to rest.