Duluth South Breakwater Inner Light
The Duluth South Breakwater Inner Light is a lighthouse on the south breakwater of the Duluth Ship Canal in Duluth, Minnesota, United States. It forms a range with the Duluth South Breakwater Outer Light to guide ships into the canal from Lake Superior. The current structure was built from 1900 to 1901.
The Duluth South Breakwater Inner Light from the southwest | |
| Location | South Breakwater, south pier of the Duluth Ship Canal, Duluth, Minnesota |
|---|---|
| Coordinates | 46°46′43.4″N 92°5′31.3″W |
| Tower | |
| Constructed | 1889 |
| Foundation | Concrete pier (current) |
| Construction | Steel/cast iron |
| Automated | 1976 |
| Height | 70 ft (21 m) |
| Shape | Skeletal tower |
| Markings | Black with white lantern |
| Heritage | National Register of Historic Places listed place |
| Light | |
| First lit | 1889 (first tower) 1901 (current tower) |
| Focal height | 68 ft (21 m) |
| Lens | Fourth order Fresnel lens |
| Range | 15 nmi (28 km; 17 mi) |
| Characteristic | Fl W 5s |
Duluth South Breakwater Inner (Duluth Range Rear) Lighthouse | |
| Area | 0.3 acres (0.12 ha) |
| MPS | U.S. Coast Guard Lighthouses and Light Stations on the Great Lakes TR |
| NRHP reference No. | 83000945 |
| Added to NRHP | August 4, 1983 |
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