Section 172.104 - Character of damage(a)Type I barge hull not in an integrated tow. If a Type I hull is required and the barge is not a box barge designed for use in an integrated tow, design calculations must show that the barge can survive damage at any location including the intersection of a transverse and a longitudinal bulkhead.(b)Type I barge hull in an integrated tow. If a Type I barge hull is required and the barge is a box barge designed for operation in an integrated tow, design calculations must show that the barge can survive damage- (1) At any location on the bottom of the tank barge except on a transverse watertight bulkhead; and(2) At any location on the side of the tank barge including on a transverse watertight bulkhead.(c)Type II barge hull. If a Type II hull is required, design calculations must show that a barge can survive damage at any location except on a transverse watertight bulkhead.