Integral lighthouse
Encyclopedia
An integral lighthouse is a lighthouse
in which the tower and keeper's dwelling are united in one structure. Generally, the term is not used to refer to a caisson
or screw-pile lighthouse
.
Lighthouse
A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid to navigation for maritime pilots at sea or on inland waterways....
in which the tower and keeper's dwelling are united in one structure. Generally, the term is not used to refer to a caisson
Caisson lighthouse
A caisson lighthouse is a lighthouse whose superstructure rests on a concrete or metal caisson.Caisson lighthouses were developed in the late nineteenth century as a cheaper, more efficient alternative to screwpile lighthouses; they could better withstand harsh weather, and were not as fragile...
or screw-pile lighthouse
Screw-pile lighthouse
A screw-pile lighthouse is a lighthouse which stands on piles that are screwed into sandy or muddy sea or river bottoms. The first screw-pile lighthouse was built by blind Irish engineer Alexander Mitchell...
.