20171107018359A

Pilot departed Boundary County Airport and made a crosswind departure to the southeast. Pilot performed an easterly "high recon" over the river for approximately 4 miles before descending back onto the river for a low level recon of a potential sandbar landing site. The pilot stated that he had identified marked power lines at both the west and east ends of the areas that he surveyed and believed that the area of the sandbar was free of obstructions. Aircraft hit wires that were approximately 50 feet above the river approximately 300YARDS beyond the departure end of the sandbar that was being evaluated. The wires cross the river north south and the river is flowing basically east to west in that area. The pilot spotted the wires at a very short distance and pushed nose down. The top of the vertical stabilizer contacted the third of four wires. A piece of aircraft aluminum was later identified on the power line. The power line did not appear damaged and the power company reported that after a brief outage, the power was restored without any repairs.