Portsmouth Harbor Light

The tower was built in 1771 and was the tenth of eleven lighthouses that were built before the American Revolutionary War. The first tower was piled with wood and equipped with an iron lantern and a copper roof.

As a light source served three copper oil lamps. 1804 approximately 91 m east of the tower was built from 1771 a 24m-high octagonal wooden tower, which replaced the old. In 1851, this tower was shortened to 17 m.

Three years later, in 1854, the tower with a Fresnel lens ( 4th order ) was fitted. 1878, a new, 15 -meter-high tower made ​​of cast iron and brick was built on the same foundation as the tower of 1804. When the new tower was built, the buildings surrounding the tower were removed by 1804. The Beacon is a fixed green light, which is 12 nautical miles visible (22 km). The light is green by an acrylic cylinder which surrounds the lens. Other buildings at the lighthouse, which still stand, the oil house are from 1903 ( restored 2004) and the guard's house (1872 ), which is currently used by the U.S. Coast Guard as an office building.

Weblink

43.071086 - 70.70853Koordinaten: 43 ° 4 ' 16 "N, 70 ° 42' 31" W

  • Lighthouse in the United States
  • Lighthouse in North America
  • Building in New Hampshire
  • Rockingham County ( New Hampshire)
657399
de