Potential Hazards: Workers falling and tripping while boarding a vessel Injuries from rotating machinery such as winches, gears, cables, and pulleys. Falls from wing walls, stiles of marine railways, and catwalks Falling into the water from unguarded ends of floating drydocks and marine railways Requirements and Example Solutions: Adequate gangway, ramp, or permanent stairway must be provided between a floating drydock, piers, or bulkhead, and for access to wing walls and drydock floors. [1915.75(a), (b), (c)] Wing walls, stiles, catwalks, and open ends of floating drydocks must be adequately guarded. [1915.75(e)] Cradles or carriages on marine railways must be positively secured. [1915.115(e)(1)] Moving parts and machinery on drydocks must be guarded. [1915.131(d)]     Figure 3: Improper practice: Navy vessel in floating dry dock with unguarded ends. Figure 4: Floating dry dock with proper ramp and stairway access to the pier, and proper railings on the wing walls.   Figure 5: Improper practice: Barge on marine railway showing track and carriages which must be secured.