KOEN
Grand Haven South Pierhead Inner Light in the middle, with the lights within 20 km, in their listed colours.
Grand Haven South Pierhead Inner Light — light characteristic, height, range
Red, dark once every 4 seconds
Keep the red light on.Every 4 seconds, go dark once.Begin again.
- Characteristic
- Oc R 4s
- Height
- 52 ft · 16 m
- Nominal range
- 6 mi = 10 km
- Structure
- Red cylindrical tower.
- Position
- 43.0572°N, 86.2538°W · MI
Lights nearby
- Grand Haven South Pierhead Entrance LightOne red flash every 10 seconds · 179 m
- Grand Haven North Pierhead Light 1One green flash every 4 seconds · 203 m
- Grand River Lighted Buoy 3One green flash every 2.5 seconds · 1.4 km
- Grand River Lighted Buoy 3AOne green flash every 4 seconds · 1.5 km
- Grand River Lighted Buoy 4One red flash every 4 seconds · 2.1 km
- Grand River Lighted Buoy 8One red flash every 2.5 seconds · 2.7 km
- Grand River Lighted Buoy 14One red flash every 2.5 seconds · 3.6 km
- Grand River Lighted Buoy 14AOne red flash every 6 seconds · 3.9 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: U.S. Coast Guard Light List (opens in a new tab) · Checked