BARNEGAT (lightship)
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Why it's listed
Built in Camden, New Jersey, for the United States Light House Board by the New York Ship Building Company, this iron-hulled, riveted steam lightship was one of a group of five built under the same contracts. Stationed seven miles off Barnegat Inlet on the New Jersey coast after first serving at Five Fathoms Bank off Cape May, it marked hazards and guided vessels bound for New York and Philadelphia. Its signals included a light, two diaphone fog horns and a radio beacon, and it was among the first lightships to use radio beacons as temporary aids to navigation. The vessel was converted from steam to diesel power in 1931. It was retired in 1967, displayed at the Chesapeake Bay Maritime Museum until 1975, and is now being restored in Philadelphia, where a volunteer guild operates it. It is regarded as the oldest iron lightship in the United States.
Significance in brief: The nomination argues the vessel guided coastal commerce to the Port of Philadelphia and provided safe passage and aid to navigation, including weather, water and radio beacon services. It also states the vessel introduced the first major use of radio beacons as non-permanent aids to navigation, and that it is the oldest iron lightship in the United States and the only operational lightship fully staffed by museum members.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 79002317, listed November 29, 1979. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | Pier Thirty South, Philadelphia |
|---|---|
| County | Philadelphia |
| Listed | November 29, 1979 |
| Reference number | 79002317 |
| Resource type | Structure |
| Architect / builder | New York Ship Building and Dry Dock Co. N.J. |
| Areas of significance | Conservation, Engineering, Transportation |
| Level of significance | State |
| Status (as stated in the nomination) | Presently in restoration at Pier Thirty South in center city Philadelphia; fully operational with machinery run at least once a week. |
| Acreage | 0.3 |
| Coordinates | 39.93950, -75.14125 (NPS GIS) |
What listing means for this property
National Register listing is honorary: it recognises significance and does not restrict what a private owner may do without federal money or permits. It unlocks the 20% federal rehabilitation tax credit for income-producing buildings, state credits in many states, and Section 106 review when federal agencies are involved. See what listing means in practice.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 79002317.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q4861475
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.