 Green Bay Harbor Entrance Light (USCG) | |
 | |
| Location | approaches to Green Bay, Wisconsin harbor |
|---|---|
| Coordinates | 44°39′11.13″N 87°54′4.54″W / 44.6530917°N 87.9012611°W[1] |
| Tower | |
| Constructed | 1935[2] |
| Foundation | Concrete pier |
| Construction | Steel plate |
| Automated | 1979[2] |
| Shape | white conical tower on cylindrical base |
| Light | |
| Focal height | 72 feet (22 m) |
| Lens | fourth order Fresnel lens |
| Range | 12 nautical miles (22 km; 14 mi) |
| Characteristic | occ. red 4s |
The Green Bay Harbor Entrance Light is an offshore lighthouse near Green Bay, Wisconsin. Located 10 miles (16 km) from the mouth of the Fox River, it was erected to signal the entrance to Green Bay.
The shipping channel approaching the Fox River in Green Bay was changed a number of times in order to accommodate vessels of increasing draft. The Army Corps of Engineers also modified the channel in the mid 1920s. The Green Bay Harbor Entrance buoy was established in 1927 to mark this point until the Bureau of Lighthouses could obtain funds for a more permanent solution. The acetylene buoy emitted a flash of 0.3 seconds duration every 3 seconds and had a wave-activated bell. The light is one of the few on the Great Lakes still powered by submarine cable. It is issued from a pair of 300 mm Tideland Signal ML300 acrylic optics mounted on the gallery railing. Because the light is too far out to be seen well from shore, the only good view of it is from a boat.
- ^ Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard. 2012. p. 210.
- ^ a b "Historic Light Station Information and Photography: Wisconsin". United States Coast Guard Historian's Office. Archived from the original on 2017-05-01.