A small inclined ramp to allow passage of trucks over a hatch coaming or bulkhead door sills etc


Related Terms

PIERHEAD LINE

The line in navigable waters beyond which construction is prohibited; open-pier construction may extend outward from the bulkhead line to the pierhead line.

COLLISION BULKHEAD

The foremost main transverse watertight bulkhead designed to keep water out of the forward hold in case of bow collision damage.

FOREPEAK BULKHEAD

The foremost main transverse watertight bulkhead designed to keep water out of the forward hold in case of bow collision damage.

SCREEN BULKHEAD

Light nonwatertight transverse bulkhead fitted in some Great Lakes ore carriers

BULKHEAD

Vertical partition walls which separates the interior of a ship into compartments or rooms

AFTERPEAK BULKHEAD

First main transverse bulkhead forward of the sternpost

MARGIN LINE

A line, not less than 3 in below the top of the bulkhead deck at side, defining the highest permissible waterplane in the final condition of sinkage, trim and heel

COMPARTMENTATION

The subdividing of the hull by transverse watertight bulkheads so that the ship may remain afloat under certain flooding conditions

SHIFTING BOARD

Portable bulkhead members, generally constructed of wood planking and fitted fore and aft in cargo holds when carrying grain or other cargo to prevent shifting when the ship is rolling

TONNAGE OPENINGS

Nonwatertight openings in the shelter deck and in the tween deck bulkheads immediately below in order to exclude spaces from tonnage measurement and thus obtain reduced gross and net tonnage. The openings could be closed by nonwatertight wood shifting boards or metal covers meeting the tonnage and load line regulations

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