Nedre Kockelskär Lighthouse

The Nedre Kockelskär lighthouse was constructed in 1906 to serve as a navigational aid for mariners in the Östersjön (Baltic Sea). Its strategic location, situated on the island of Nedre Kockelskär off the coast of Trosa kommun in Södermanland County, Sweden, made it an essential component of maritime safety.

Architecture

The lighthouse stands at a height of 25 meters (82 feet) above sea level. Its focal height is approximately 30 meters (98 feet), allowing it to emit a powerful beam of light into the surrounding waters. The tower's design is characteristic of traditional Swedish lighthouses, with a square base and a tapering shape that tapers towards the top.

The lighthouse was built using local materials, including stone and brick, which were chosen for their durability and resistance to harsh weather conditions. The structure's robust construction has enabled it to withstand numerous storms and sea surges over the years.

Light Characteristics

• Light 1: Green, Iso (four seconds)
• Light 2:: White, Iso (four seconds)
• Light 3:: Red, Iso (four seconds)
• Light 4:: Green, Iso (four seconds)
• Light 5:: Red, Iso (four seconds)

The light's range is reported to be approximately 7 nautical miles for each of the five lights. The lighthouse's beam is designed to cut through fog and haze, providing vital guidance for mariners navigating the Östersjön.

Current Status

The Nedre Kockelskär lighthouse remains an active aid to navigation, although it has been automated since its construction. While no longer manned by a keeper, the lighthouse continues to play a crucial role in maritime safety, guiding vessels through the treacherous waters of the Östersjön.

Location and Accessibility

The Nedre Kockelskär lighthouse is situated on the island of Nedre Kockelskär, approximately 1.5 kilometers (0.9 miles) off the coast of Trosa kommun in Södermanland County, Sweden. The location can be accessed by boat or via a short walk from the nearby town of Trosa.

Heritage Status

The Nedre Kockelskär lighthouse is listed as a cultural heritage site in Sweden, recognized for its historical significance and architectural importance. Efforts have been made to preserve the lighthouse's original structure and maintain its integrity as an iconic symbol of maritime safety.

Notable Historical Events

While no major events are recorded specifically at Nedre Kockelskär Lighthouse, its strategic location has played a role in several significant maritime incidents over the years. The lighthouse has also been used as a reference point for navigation and charting purposes, providing valuable data for hydrographers and surveyors.

Today, the Nedre Kockelskär lighthouse stands as a testament to Sweden's rich maritime history and its enduring commitment to safety and navigation.