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St. Clair Flats Old Channel Lighthouse

Fl W 4s🇺🇸Michigan's Eastern Lower Peninsula, USOperational

Location & Light Range

About St. Clair Flats Old Channel Lighthouse

This lighthouse stands off the southeastern tip of Harsens Island on Lake St. Clair. It emits a white light with a focal height of 8.5 meters. The structure is operational and serves the St. Clair Flats area.

Background
St. Clair Flats Front and Rear Range Light are two lighthouse structures situated off the southeastern tip of Harsens Island at Lake St. Clair.

Light & Optic

Characteristic Signature
Fl W 4s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
4s
Focal Height
8.5m

References & Identifiers

Wikipedia
Read on Wikipedia →
Wikidata
Q7587573 →
OpenStreetMap
View on OSM →

Location

City
Michigan's Eastern Lower Peninsula
Country
🇺🇸US
Latitude
42.5377°
Longitude
-82.6932°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify St. Clair Flats Old Channel Lighthouse at night?+
St. Clair Flats Old Channel displays the characteristic Fl W 4s — 1 white flash every 4 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area.
Which ports and harbors does St. Clair Flats Old Channel Lighthouse guide vessels into?+
St. Clair Flats Old Channel Lighthouse assists vessels approaching 5 nearby ports. The closest is Chesterfield at 8 NM to the NW. Other ports served include NEW BALTIMORE (8 NM NNW), New baltimore (8.2 NM NNW), ALGONAC (8.4 NM NE), FAIR HAVEN (8.4 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is St. Clair Flats Old Channel Lighthouse still active and maintained?+
Yes, St. Clair Flats Old Channel Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near St. Clair Flats Old Channel Lighthouse?+
You can track vessels near St. Clair Flats Old Channel Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.