 Portsmouth Harbor Lighthouse | |
 | |
| Location | Portsmouth Harbor, Piscataqua River, New Castle, New Hampshire |
|---|---|
| Coordinates | 43°4′15.7″N 70°42′30.9″W / 43.071028°N 70.708583°W |
| Tower | |
| Constructed | 1771 (original tower) 1878 (current tower) |
| Construction | Cast-iron & Brick |
| Automated | 1960 |
| Height | 48-foot (15 m) |
| Shape | Conical |
| Heritage | National Register of Historic Places listed place  |
| Light | |
| First lit | 1878 |
| Focal height | 16 m (52 ft) |
| Lens | Fourth order Fresnel, 1854 |
| Range | 12 nautical miles (22 km; 14 mi) |
| Characteristic | Fixed Green |
Portsmouth Harbor Light | |
| Area | less than one acre |
| Built | 1804 |
| Built by | United States Lighthouse Board |
| Architect | James Chatham Duane |
| Architectural style | Late Victorian |
| MPS | Light Stations of the United States MPS |
| NRHP reference No. | 09000816[1] |
| Added to NRHP | October 8, 2009 |
Portsmouth Harbor Lighthouse is a historic lighthouse located within Fort Constitution in New Castle, New Hampshire, United States.
- ^ "National Register Information System". National Register of Historic Places. National Park Service. November 2, 2013.