Mjölkö Lighthouse

The Mjölkö lighthouse is situated on an island located approximately 3 km east of Åkersberga, Österåkers municipality, Sweden. The island can be accessed via a gravel road network managed by the Mjölkö community association.

History

Mjölkö or Mjölkön is believed to have been named after the mainland farmers who used to transport their cows to the island during the summer months for milking. The lighthouse has played an essential role in maritime navigation, particularly for vessels approaching the Österåker harbor.

Architecture and Construction

The Mjölkö lighthouse features a distinctive tower height of approximately 4 meters above sea level. Its focal height is not explicitly stated, but its light characteristics suggest a moderate range. The lighthouse's architectural style is characteristic of Swedish coastal lighting, with six distinct light patterns that rotate in sequence.

Light Characteristics

• Fl (white) at 6-second intervals
• Fl (red) at 6-second intervals

The light characteristics suggest a moderate range, with the following ranges:

• Range 1: 7 nautical miles
• Range 2: 10 nautical miles
• Range 3: 8 nautical miles
• Range 4: 7 nautical miles
• Range 5: 10 nautical miles
• Range 6: 8 nautical miles

Current Status

The Mjölkö lighthouse is reportedly still operational, although its status as an active aid to navigation is not explicitly confirmed. The island's residents and the Mjölkö community association continue to manage the lighthouse and surrounding infrastructure.

Heritage Status

Mjölkö has been designated as a notable historical site in Österåkers municipality, reflecting its significance in maritime history and coastal development.

Notable Historical Events

The Mjölkö lighthouse played an essential role in maritime navigation during World War II, serving as a vital aid to navigation for vessels approaching the Österåker harbor.