The shape under the water line resembles . Sparks sprang from water line taps when touched. The main line broke due to a gardening tool hitting the water line. It might also move up or down with respect to the water line. There were constraints on span size and the height above the water line. The ship was length overall, length between perpendiculars and on water line. Many departments use the hydrants for flushing out water line sediments. Sites above the projected water line remain un-excavated. The Castle was also part of the Hollandic Water Line. The highest points on the forward mack was more than above the water line. This reduced the clearance between the bow doors and water line to between and . Only the algae "Oscillatoria" grows along the piers above the water line. This put the rudder trunk openings below the water line. Side hatches at the water line form a dock for personal watercraft. In 1673, Gorinchem became part of the old Dutch Water Line.