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Chaul Kadu Reefs Lighthouse

Fl Red 3s🇮🇳INOperational

Location & Light Range

About Chaul Kadu Reefs Lighthouse

A cylindrical masonry tower painted white stands 19 meters tall, with its light positioned 17 meters above sea level. Constructed in 1870, the lighthouse features a gallery and was built to mark the dangerous Chaul Kadu Reefs, located about 10 kilometers southwest of Alibag. The structure is made of masonry and emits a red flash every three seconds. Originally, it included a refuge room for shipwrecked sailors. The lighthouse is situated offshore, approximately 10 kilometers from the nearest port of Dharamtar.

Why it matters: This lighthouse warns vessels away from the hazardous Chaul Kadu Reefs. Its construction by the British and the inclusion of a refuge room highlight its historical and humanitarian significance for maritime safety.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
17m
Geographic Range
12.4NM

Construction & History

Year Built
1870

References & Identifiers

Nearest Port
Dharamtar(10.3 km)
Admiralty No.
F0557.6
NGA No.
27924
ARLHS No.
IND-001

Tower & Structure

Tower Height
19m
Tower Shape
cylindrical
Tower Color
white
Material
masonry

Structure: round cylindrical masonry tower with gallery, painted white

Location

Country
🇮🇳India
Region
Maharashtra
Sea Region
offshore, about 10 km southwest of Alibag
Latitude
18.6329°
Longitude
72.8640°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Chaul Kadu Reefs Lighthouse at night?+
Chaul Kadu Reefs displays the characteristic Fl Red 3s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Chaul Kadu Reefs Lighthouse guide vessels into?+
Chaul Kadu Reefs Lighthouse assists vessels approaching 5 nearby ports. The closest is Revdanda at 6.7 NM to the SSE. Other ports served include Dharamtar (10.1 NM ENE), Karanja (14 NM NNE), Uran (15.5 NM NNE), Mumbai (ex Bombay) (18.5 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Chaul Kadu Reefs Lighthouse still active and maintained?+
Yes, Chaul Kadu Reefs 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 Chaul Kadu Reefs Lighthouse?+
You can track vessels near Chaul Kadu Reefs 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.