(a) The calculations required by Sec. 174.310 must show that the dredge can survive damage at any location along the length of the vessel including at a transverse bulkhead in accordance with paragraph (b) of this section.
(b) The calculations required by paragraph (a) of this section must assume the most disabling side penetration with the damage collision penetration provided by Table 174.315, except that if the most disabling damage collision penetrations would be less than those provided by Table 174.315, the smaller damage collision penetration must be assumed.
Table 174.315--Extent of Damage Collision PenetrationLongitudinal extent....................... 0.495L\2/3\ or 47.6 feet.
[(\1/3\)(L)\2/3\ or 14.5
meters] whichever is less.Transverse extent \1\..................... B/5 or 37.7 feet. (11.5
meters), whichever is less.Vertical extent........................... From the base line upward
without limit.------------------------------------------------------------------------\1\ Damage applied inboard from the vessel's side at a right angle to
the centerline at the draft corresponding to the working freeboard
assigned under subchapter E of this chapter.