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Plovput LLC limited liability commercial company for
maintenance of maritime waterways and radio service

Safe water marks

(excerpt from Regulations about way of marking of waterways and aids to navigation)

The safe water mark has the shape of a sphere, pillar or spar, painted with vertical red and white stripes.

 

In cases where the safe water mark is in the shape of a pillar or spar, the topmark must be a red sphere.

 

The light of the safe water mark is a white isophase light, occulting or a white light with one long flash every 10 seconds or the Morse sign ''A'' (.-).

 

The safe water mark is used to mark:

  • navigable water around the mark
  • center line or the middle of the channel
  • channel entrance or channel approach
  • estuary, port or shore approach.

The safe water mark may replace the lateral (side) or cardinal (basic) mark to indicate the shore approach.

 

NAUTICAL CHARACTERISTICS OF SAFE WATER MARKS

 

Safe water marks
Colour Red and white stripes
Shape Spherical, buoy with pillar or spar
Topmark Red sphere
Light (if any) White
Rhythm Isophase, occulting, L Fl every 10s or Morse ''A''

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