At approximately 1439 central time, a Cessna 182P was damaged during a precautionary landing on a dirt road. The pilot was not injured but the landing gear struck a hole, a wingtip hit the ground and the airplane nosed over. The pilot reported being en route when he became severely disoriented. He was unable to get the GPS or avionics to function correctly and could not verify his position or heading. His confusion mounted and he decided to land the airplane. A post-accident examination of the pilot revealed he had bleeding on the brain, which may have stemmed from a motorcycle accident in June. He had been cleared to return to flying in August and had successfully completed a flight a few days before the accident.