Osaka South Harbour Coastal Defences Lighthouse

The Osaka South Harbour Coastal Defences Lighthouse is a notable lighthouse located in Osaka, Japan.

History

• The Osaka South Harbour Coastal Defences Lighthouse was constructed in 1928 as part of the Osaka South Harbour's coastal defences. Its primary function was to provide navigation aid for mariners and fishermen operating in the harbour.
• The lighthouse features a distinctive green glass lens, which is characteristic of many Japanese coastal defences. The structure is built using traditional materials, including wood and stone.

Light Characteristics

• The lighthouse emits a Fl (flash) green light, visible from a range of 11 nautical miles.
• The light is displayed every six seconds, making it an easily recognizable aid to navigation.

Current Status

The Osaka South Harbour Coastal Defences Lighthouse remains an active navigational aid, although its primary function has been largely superseded by modern aids to navigation. The lighthouse is currently automated and no longer manned.

Location and Accessibility

The lighthouse is situated on the Nanko-dori waterfront in Osaka, Japan. Visitors can access the lighthouse via a short walk from the nearby Nanko-dori station.

Heritage Status

The Osaka South Harbour Coastal Defences Lighthouse has been designated as a cultural property of Osaka Prefecture, reflecting its historical significance and architectural importance.

Notable Historical Events

• During World War II, the lighthouse played an important role in the defence of Osaka harbour. The structure was also used as a reference point for navigation during the post-war period.

Architecture

The tower stands at a height of 12 metres (39 feet) above sea level, with a focal height of 15 metres (49 feet). The lighthouse features a distinctive green glass lens, which is characteristic of many Japanese coastal defences. The structure is built using traditional materials, including wood and stone.