SALMON, Idaho (Reuters) - A Washington state man was listed in satisfactory condition on Monday and was incredibly lucky to be alive after his car flipped into a river near the Idaho-Washington border, authorities said. Ned Florea, 20, squeezed through the rear seats and into the trunk of his two-door Hyundai Tiburon as chill, fast-flowing waters engulfed all but 6 inches of head room, creating a life-saving air pocket, Idaho State Trooper Leslie Lehman said. Rescuers estimated that Florea was in the Pend Oreille River for nearly an hour after the accident, which happened about 11 p.m. on Saturday after his car veered off a northern Idaho roadway and plunged into the water. A passenger, Keefer Peterson, 18, of Oldtown, Idaho, managed to swim free of the submerged car but later could not recollect how he escaped, Lehman said.