Lake Michigan
St. Joseph North Pierhead Light
St. Joseph, Michigan
Its real signal — watch it blink
Iso W 6s — isophase light, evenly split 3s on / 3s off
One full cycle: 6 seconds.
- Built
- 1906
- First lit
- 1906
- Height
- 35 ft
- Focal plane
- 31 ft above water
- Status
- Still burning
- Visited
- Add your year
The white octagonal keeper at the end of St. Joseph's long catwalk pier, with the inner light standing partway out on its own. Isophase means fair and square: three seconds of light, three seconds of dark, no favorites. Red and green sectors mark the deep channel into the river.