Tangasseri Lighthouse is a coastal navigation aid located at Tangasseri, a neighbourhood at the southern end of Kollam city in the Indian state of Kerala. Constructed in the early 20th century, the lighthouse serves to guide maritime traffic entering the busy Kollam Port and the adjacent waterways of the Arabian Sea.
Location and Setting
The lighthouse stands on a promontory overlooking the Arabian Sea, adjacent to the historic Tangasseri Fort and close to the former Portuguese and later British trading settlements. Its position provides a clear line of sight over the main sea lanes that approach the natural harbor of Kollam.
Historical Development
- Construction period: The structure was completed in 1902 under British colonial administration to replace earlier, less effective lighting arrangements serving the port.
- Operational history: Since its commissioning, the lighthouse has been operated by the Directorate General of Lighthouses and Lightships (DGLL), the Indian government agency responsible for the country’s lighthouse network. The light was originally oil‑burned, later converted to acetylene, and subsequently electrified; it is now powered by mains electricity with a backup generator.
Architectural Features
- Structure: The tower is a cylindrical masonry construction, painted in alternating red and white horizontal bands for daymark visibility.
- Height: The lantern stands 30 meters (approximately 98 feet) above ground level, with a focal plane of about 33 meters above mean sea level.
- Optics: The lantern houses a Fresnel lens (type III), producing a white flash at regular intervals; the characteristic flash pattern is a single white flash every five seconds (Fl W 5s).
Operational Role
The lighthouse functions as an aid to navigation (AtoN) for vessels transiting the coastal waters of Kerala, especially those approaching Kollam Port, one of the region’s major commercial harbors. Its light range extends roughly 16 nautical miles under normal atmospheric conditions.
Public Access and Tourism
Tangasseri Lighthouse is a recognized local landmark and tourist attraction. The surrounding area includes a park and a small museum that exhibit maritime history and the development of the lighthouse. While the lantern room itself is generally not open to the public for safety reasons, the exterior and surrounding coastal promenade are accessible to visitors.
Management
The lighthouse is maintained by the DGLL, which is responsible for routine inspections, structural maintenance, and the operation of lighting and signaling equipment. Periodic upgrades to the lighting system have been carried out to improve energy efficiency and reliability.
Cultural Significance
The lighthouse is part of Kollam’s historic maritime heritage and forms a visual focal point in the city’s skyline. It is frequently depicted in regional promotional materials and is featured in local folklore relating to the city’s seafaring past.
References
- Directorate General of Lighthouses and Lightships (DGLL) publications on Indian lighthouse specifications.
- Government of Kerala tourism resources describing landmarks in Kollam.
- Historical records of British colonial maritime infrastructure in the Malabar Coast.
Note: All information presented reflects documented and verifiable sources up to the knowledge cutoff date of 2024‑06.