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 … Wikipedia
Detroit River Light — Undated U.S.C.G. photo Location Lake Erie south of Detroit River Year first constructed 1875 (lightship) 1885 (current tower) Automated 1979 Foundation … Wikipedia
Duxbury Pier Light — Duxbury Pier lighthouse in Plymouth Harbor Location Plymouth Harbor, Plymouth, Massachusetts Coordinates … Wikipedia
Newport News Middle Ground Light — 1997 photograph of Newport News Middle Ground Light, Virginia (NPS) Location east of the Monitor Merrimac Memorial Bridge Tunnel in Hampton Roads Coordinates … Wikipedia
Old Orchard Shoal Light — Year first constructed 1893 Year first lit 1893 Automated 1955 Foundation Concrete/Cast Iron Caisson Construction Cast Iron Tower shape Conical Spark Plug Markings / pattern l … Wikipedia
Butler Flats Light — Infobox Lighthouse caption = Lighthouse in 2007 location = New Bedford Channel, Acushnet River coordinates = coord|41|36|13|N|70|53|40|W|region:US type:landmark yearbuilt = 1805 yearlit = 1898 (current tower) automated = 1978 yeardeactivated =… … Wikipedia
Conimicut Light — Conimicut Lighthouse U.S. National Register of Historic Places … Wikipedia
Orient Point Light — Location Off Orient point, north eastern tip of Long Island, NY, Oyster pond reef, Plum gut Year first constructed 1899 Year first lit 1899 Automated 1954 Foundation Cast iron caisson Construction Cast iron plate with brick lining … Wikipedia
Stamford Harbor Ledge Light — Infobox Lighthouse caption = Postcard dated 1912 location = Stamford, Connecticut coordinates = coord|41.0133|N|73.5433|W|type:landmark region:US|name=Stamford Harbor Ledge Light|display=inline,title yearbuilt = 1882 yearlit = 1882 automated =… … Wikipedia
Crabtree Ledge Light — Location Frenchman Bay, Maine Coordinates … Wikipedia
