On August 20, 2004, at 0857 Pacific daylight time, an experimental Berry Hatz CB-1 bi-wing airplane, N592DJ, collided with a hangar after veering off the runway at Cable Airport, Upland, California. The pilot, also the builder and registered owner, was operating the airplane under the provisions of 14 CFR Part 91. The commercial pilot, the sole occupant, was not injured. The airplane sustained substantial damage. The pilot departed from the Cable Airport at 0800 for the local area personal flight. Visual meteorological conditions prevailed, and no flight plan had been filed. According to the pilot, during landing on runway 24 the airplane bounced upon initial touchdown. The pilot added power attempting to soften the following touchdown. As he added power, the airplane veered to the left. The airplane continued and collided with a taxiway sign. After the collision with the sign, the airplane impacted a hangar. The pilot said that due to the bi-wing structure of the airplane, his forward visibility was reduced, which increased the difficulty of reestablishing the airplane on course. During the impact sequence, the upper right wing collapsed onto the lower right wing and the landing gear folded under the fuselage. The pilot noted no mechanical problems with the airplane prior to the accident.