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Historical chart
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Ship John Shoal
State: DE
Year established: 1854
Latitude: 39 deg 18
min 19 sec N
Longitude: 75 deg 22
min 36 sec W
Height above sea level: 50 feet Original construction:
octagonal wooden screwpile lighthouse Rebuilds:
 1877: present brown octagonal dwelling with pyramidal roof; on cylindrical caisson-base pier
Status:
automated in 1973; active aid to navigation
Light characteristic:
Flashing white every 5 seconds visible for 16 nautical miles, with red sector visible for 12 nautical miles; 1 horn blast every 15 seconds (March 15 to Dec 15)
Notes:
Although listed by the NJ Lighthouse Society, both the USCG Light Station List and the National Park Service Inventory of Historic Light Stations place this light in Delaware waters
More information:
http://www.njlhs.burlco.org/shipjohn.htm
http://www.cr.nps.gov/maritime/light/shipjohn.htm
http://www.uscg.mil/hq/g-cp/history/WEBLIGHTHOUSES/LHDE.html
Holland Jr., F. Ross, America's Lighthouses: Their Illustrated History Since 1716, (Brattleboro, VT: The Stephen Greene Press, 1972), p. 100
U.S. Department of Homeland Security / United States Coast Guard, Light List, Volume 2 Atlantic Coast, Shrewsbury River, New Jersey to
Little River, South Carolina, (Washington, DC: GPO, 2004), p. 16
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