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 to begin construction was built by blind Irish engineer Alexander Mitchell. Construction began in 1838 at the mouth of the Thames and was known as the Maplin Sands lighthouse, and first lit in 1841. However, though its construction began later, the Wyre Light in Fleetwood, Lancashire, was the first to be lit (in 1840).

In the United States, several screw-pile lighthouses were constructed in the Chesapeake Bay due to its estuarial soft bottom. North Carolina’s sounds and river entrances were also once home to many screw-pile lights. The characteristic design is a  1 1⁄2-storey hexagonal wooden building with dormers and a cupola light room.

(This article comes from Wikipedia edit released)

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