Lighthouse (PHL)

From International Dictionary of Marine Aids to Navigation
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To be considered as a LIGHTHOUSE, the station must satisfy at least 2 of the following criteria:

- The station has been designed to be manned

- The station consist, or originally consisted, of several buildings

- The height of the tower should be greater than 10m above the ground

- The range of the light should be greater than 15 nautical miles

- The light is used for general navigation


(Definition retained for the purpose of the lighthouse book)

This definition is as set out in 1998 and references to the range of the light should be considered as the maximum range during the history of the lighthouse. In a heritage definition a lighthouse station includes all Aids to Navigation related to the site.

See also Historic Lighthouse

observation duration