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Tranerodde Lighthouse

Iso White/Red/Green 2s🇩🇰Sønderborg Municipality, DKOperational

Location & Light Range

About Tranerodde Lighthouse

Also known as: Tranerodde (Traner Odde)

This cylindrical cast iron lighthouse was built in 1905 and first lit in the same year. Standing 10 meters tall with its focal height at 12 meters, the tower is painted white with a single red horizontal band. Its light flashes in a 2-second cycle, showing white, red, or green to indicate direction. The structure features a lantern and gallery. Tranerodde Lighthouse is situated on a promontory on the northeast side of Als, about 3 kilometers east of Danfoss. The site is open to the public, but the tower itself remains closed.

Why it matters: This lighthouse provides directional guidance for vessels navigating the waters on the northeast side of Als island and represents an example of early prefabricated cast iron lighthouse construction.

Light & Optic

Characteristic Signature
Iso White/Red/Green 2s
Flash Type
Isophase
Light Color
White/Red/Green
Interval
2s
Raw Code
Iso WGR 2s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1905

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white with a single red horizontal band
Material
cast iron

Structure: round cylindrical cast iron tower with lantern and gallery

Location

City
Sønderborg Municipality
Country
🇩🇰Denmark
Region
Region of Southern Denmark
Sea Region
A promontory on the northeast side of Als, at the end of the Skærveagervej about 3 km east of Danfoss.
Latitude
55.0457°
Longitude
9.8517°

References & Identifiers

Nearest Port
Fynshav(5.6 km)
ARLHS No.
DEN-106
Wikidata
Q55122184 →
OpenStreetMap
View on OSM →
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Frequently Asked Questions

How do mariners identify Tranerodde Lighthouse at night?+
Tranerodde displays the characteristic Iso White/Red/Green 2s. 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 white/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does Tranerodde Lighthouse guide vessels into?+
Tranerodde Lighthouse assists vessels approaching 5 nearby ports. The closest is NORDBORG at 4.9 NM to the W. Other ports served include Fynshav (5.6 NM SE), Augustenborg (6.2 NM S), Sydals (8.5 NM S), Bøjden (8.7 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tranerodde Lighthouse still active and maintained?+
Yes, Tranerodde 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.
What shipping routes pass near Tranerodde Lighthouse?+
Tranerodde Lighthouse is located within the Baltic Sea trade route — a vital shipping corridor for trade between Scandinavian, German, Polish, and Baltic state ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Tranerodde Lighthouse?+
You can track vessels near Tranerodde 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.