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Fourteen Foot Bank Light

From Wikipedia, the free encyclopedia

Fourteen Foot Bank Light
Fourteen Foot Bank Light
Map
Locationnear Bowers Beach Delaware Bay, Delaware
Coordinates39°02′54″N 75°11′01″W / 39.0482°N 75.1836°W / 39.0482; -75.1836
Tower
Constructed1886
FoundationCast Iron and Concrete Caisson
ConstructionCast Iron
Automated1972
Height40 feet (12 m)
ShapeSquare
HeritageNational Register of Historic Places listed place Edit this on Wikidata
Light
First lit1888
Focal height59 feet (18 m)
LensFourth order Fresnel lens
Range13 nmi (24 km; 15 mi) (white), 10 nmi (19 km; 12 mi) (red) Edit this on Wikidata
Characteristicwhite flash every 9 s, red sector covers nearby shoal
Fourteen Foot Bank Light
NRHP reference No.89000286[1][2]
Added to NRHPMarch 27, 1989

Fourteen Foot Bank Light is a lighthouse in the Delaware Bay near Bowers Beach, Delaware. Built in 1885–1886 at the south end of Joe Flogger Shoal, it was the first lighthouse to be built using a pneumatic caisson. The wooden caisson structure was excavated to a depth of 23 feet (7.0 m) below the seabed, then filled with 2,000 cubic yards (1,500 m3) of concrete. A cast-iron base was meanwhile erected on the caisson as it sank. A house-like structure was built on top of the base, designed by H.A. Ramsay and Son of Baltimore. Engineers for the structure were Anderson and Barr, and the contractor was D.P. Heap.[3]

The light is 11 miles (18 km) offshore, and therefore not visible from land. It was added to the National Register of Historic Places in 1989.[2]

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Transcription

References

  1. ^ "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
  2. ^ a b NRHP Registration form
  3. ^ Maynard, W. Barksdale (2008). "Kent County". Buildings of Delaware. Charlottesville: University of Virginia Press. p. 238. ISBN 978-0-8139-2702-2.

External links


This page was last edited on 7 March 2022, at 20:26
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