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Loire Estuary South Side Lighthouses Lighthouse

Oc White/Green 4s🇫🇷FROperational

Location & Light Range

About Loire Estuary South Side Lighthouses Lighthouse

A cylindrical concrete tower, 6 meters tall, stands on the south jetty at St.-Michel-Chef-Chef, marking the southern entrance to the Loire Estuary. Established in 1965, the structure features a castellated top. Its light emits an occulting white or green signal every 4 seconds, visible for 9.3 nautical miles. The tower's focal plane sits 7 meters above sea level. The site is open to the public, but the tower is closed.

Why it matters: This light is essential for safe navigation into Port de Comberge, a local harbor situated within the busy Loire Estuary. Its unique directional white or green light precisely guides vessels along the south breakwater, preventing potential groundings and ensuring clear passage for maritime traffic.

Light & Optic

Characteristic Signature
Oc White/Green 4s
Flash Type
Occulting
Light Color
White/Green
Interval
4s
Raw Code
Oc W or G 4s
Focal Height
7m
Geographic Range
9.3NM

Construction & History

First Lit
1965

Significant events: Station established 1965

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
6m
Tower Shape
cylindrical
Material
concrete

Structure: round cylindrical concrete tower with a castellated top

Location

Country
🇫🇷France
Sea Region
Located on the south jetty at St.-Michel-Chef-Chef, a town on the south side of the Loire entrance about 7 km (4.5 mi) north of La Plaine-sur-Mer.
Latitude
47.1752°
Longitude
-2.1663°

References & Identifiers

Nearest Port
Pornic(4.7 km)
Admiralty No.
D1105
NGA No.
0920
ARLHS No.
FRA-593
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Frequently Asked Questions

How do mariners identify Loire Estuary South Side Lighthouses Lighthouse at night?+
Loire Estuary South Side Lighthouses displays the characteristic Oc White/Green 4s. 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. The white/green color may indicate a specific sector or warning zone.
Which ports and harbors does Loire Estuary South Side Lighthouses Lighthouse guide vessels into?+
Loire Estuary South Side Lighthouses Lighthouse assists vessels approaching 5 nearby ports. The closest is Gravette at 2.5 NM to the S. Other ports served include Préfailles (4 NM SW), Pornic (4.4 NM SE), PORNIC LA NOEVEILLAR (4.5 NM SSE), Saint-Nazaire (6.3 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Loire Estuary South Side Lighthouses Lighthouse still active and maintained?+
Yes, Loire Estuary South Side Lighthouses 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 Loire Estuary South Side Lighthouses Lighthouse?+
You can track vessels near Loire Estuary South Side Lighthouses 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.