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Baltimore Harbor Light

 
Location: the southern entrance to Craighill Channel near Gibson Island, MD
Body of Water: Chesapeake Bay
Photo by: scott1346
Source: Flickr Creative Commons

Local Marine Forecast.


Small Craft Advisory is in effect until August 22 at 6:00AM EDT by NWS
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 11 PM EDT THIS EVENING... * WINDS...18 TO 33 KNOTS WITHIN THE SMALL CRAFT ADVISORY.

About Baltimore Harbor Light

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The location of the light is the southern entrance to Craighill Channel. The nearest city is Gibson Island, MD. The station was first established in 1908. The current lighthouse was first lit in 1908.

The lighthouse is a octagonal tower on a circular caisson foundation.

The tower has a flashing white light at a focal plane height of 52 ft above mean high water. The light has a nominal range of 7 nautical miles. The light has a period of 2.5 seconds.

Open to the Public?: By Appointment    Active?: Yes

Identification number: 2-8035 (U.S.)

One red sector. The light has a range of 5 nautical miles through the red sector.

In May 1964, the Baltimore Light became the first and only American lighthouse powered by nuclear power, as a test of the SNAP-7B 60W radioisotope thermoelectric generator. One year later the RTG was removed and a conventional electric generator was installed. Currently the lighthouse is solar-powered. Baltimore Harbor Light was the last lighthouse constructed on Chesapeake Bay.

A 'flashing' light is a light in which the total duration of light in a period is shorter than the total duration of darkness and the appearances of light (flashes) are usually of equal duration. So in the 2.5 second period, the light is on for less than 1.25 then off for more than 1.25.

Baltimore Harbor Light was listed on the National Register of Historic Places on Dec. 2, 2002, reference number 02001417.

NOTE: Sectors of colored glass are placed in the lanterns of some lights in order to produce a system of light sectors of different colors. In general, red sectors are used to mark shoals or to warn the mariner of other obstructions to navigation or of nearby land. Such lights provide approximate bearing information, since observers may note the change of color as they cross the boundary between sectors.
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