Confined water navigational guideline for ship
What is confined water ?
Confined waters means an area of the sea where the Width of the Safely Navigable Waterway is not more than about 2 miles, such as a Strait, considering the Draft of the vessel and Water Depth.
Passage planning in confined waters
For navigation in confined waters, the Master shall consider the following matters in planning a passage:
Presence / Absence of special navigational rules and items to report.
Information from the sailing directions, coast pilot, and so on.
The draft of the vessel and the navigable sea area.
The effect of squat and the need to keep sufficient under keel clearance.
Expected tides and tidal currents.
Weather conditions and countermeasures against restricted visibility.
Use of navigation aids to maintain Continuous monitoring of vessels position, such as setting of Parallel Index line or ARPA Mapping, etc
Passing time of danger points (Daylight / Night-time)
The traffic density including the presence of fishing and the countermeasures
The vessel's maneuvering ability
Any necessity for adjustment of the vessel's speed.
Navigation in confined waters
The Master shall assume con of the vessel on the Bridge.
The Master shall increase officer(s) and/or lookout(s) as required
The Check list for "Navigation in Confined Waters Checklist should be recorded.
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Welcome Shipsbusiness.com! Our articles are based on various shipboard activities, safe operation, maintenance and onboard procedure. These procedures are only indicative, not exhaustive in nature and one must always be guided by practices of good seamanship. Based on user feedback we endeavored to summarize each article to serve the international shipping community