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Green Bay Harbor Entrance Light
The Green Bay Harbor Entrance Light is an offshore lighthouse north of Green Bay, Wisconsin.
==History==
The light is in fact about from the city of Green Bay, situated on the north side of the shipping channel. It used much the same design as that of the Peshtigo Reef Light to the north: a cylindrical foundation containing several chambers was poured inside a steel form atop a timber crib, and a steel plate superstructure was set atop it. This consisted of a single story round dwelling floor surmounted by a thin conical tower.〔 The lantern initially contained a fourth order Fresnel lens giving a red light; a short mast on the roof of the lantern bore a radiobeacon antenna.〔〔 The fog signal was a horn powered by compressed air.〔 The light was activated in 1935.〔
Unlike its sister, whose dwelling was intended for emergency use only, this light was constantly manned by Coast Guard personnel, who served two-week rotating tours.〔 The dwelling encompassed not only the superstructure but part of the foundation as well, as evidenced by the ring of portholes in its side.〔 The light was automated in 1979 and continues in service.〔〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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