Historically Famous Lighthouses: CG-232United States. Coast Guard
History
Historically Famous Lighthouses: CG-232
United States. Coast Guard
Lighthouses -- United States
In 1789 the Portsmouth Lighthouse was visited by George Washington who
remained in Portsmouth 4 days. Earlier in 1782 General Lafayette had
been a lighthouse visitor. Daniel Webster practiced law here in 1807,
and was a frequent visitor at the lighthouse during his 9 years of
residence in Portsmouth.
Today the lighthouse is a white conical tower, with a fog signal house
attached, built on Fort Point. It rises 52 feet above the water and its
3,000 candlepower fourth-order electric light flashes a green light
visible 13 miles. During fog a bell strikes once every 10 seconds. (5)
(7)
_NEW JERSEY_
NAVESINK LIGHTHOUSE
Navesink Light, N. J., on Navesink Highlands, south of the entrance to
New York, was established in 1828. It consisted originally of two rubble
towers. In 1862 two brownstone towers replaced these, the north tower
being octagonal and the south tower square. They are 73 feet high and
connected by a dwelling. The present light is exhibited from the south
tower only and shows a flashing white light every 5 seconds, 246 feet
above water and visible 19 miles. The light in the north tower was
discontinued in 1898.
[Illustration]
In 1841 the first Fresnel lens to be used in this country was imported
from France and installed in the south tower. In 1898 an electric arc
lamp replaced oil lamps in the south tower, this being the first primary
lighthouse in the United States to use electric light. The electric arc
lamp was equipped with a bivalve lens of the new lighting type. This
lens, weighing over 7 tons, revolved in 10 seconds, and gave a flash
every 5 seconds, lasting 0.3 seconds. The Navesink Light was the only
shore station having a plant for generating electricity. Its estimated
candlepower was 25,000,000 making it the most powerful coast light in
the United States. Although on account of the curvature of the earth,
the light itself could not be seen more than 22 miles, its beam was
reported to have been observed in the sky at a distance of 70 nautical
miles.
After the establishment of this electric flashing light many complaints
were made by residents of the neighborhood of the great discomfort and
annoyance caused by the brilliancy of the flash. This was remedied by
darkening several of the lantern panels on the land side. The light was
later changed to an electric incandescent light of 9,000,000
candlepower. With the improvement in floating aids, however, this
lighthouse lost some of its early importance, and the candlepower was
reduced to 5,000 candlepower. It was changed to unwatched in 1949. The
light was discontinued in 1952 and used as a daybeacon until 1963. (3)
(4)
_NEW JERSEY_
SANDY HOOK LIGHTHOUSE
Public-domain text, read in full here on John Shaqi.
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