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Imsum Unterfeuer Lighthouse

Oc White 6s🇩🇪Bremerhaven, DEOperational

Location & Light Range

About Imsum Unterfeuer Lighthouse

This red cylindrical tower with a white horizontal band stands 21 meters tall, with its light also at 21 meters focal height. Established and first lit in 2009, it is located in Bremerhaven within the Weser-Jade-Nordsee region. The lighthouse emits a white light that occults once every 6 seconds. Its geographic range is 13.4 nautical miles. The site is open to visitors, but the tower itself is closed to public access.

Why it matters: As the front light of a synchronized range system, the Imsum Unterfeuer is indispensable for accurate navigation in the Weser-Jade-Nordsee region, guiding vessels through a specific channel.

Light & Optic

Characteristic Signature
Oc White 6s
Flash Type
Occulting
Light Color
White
Interval
6s
Raw Code
Oc W 6s
Focal Height
21m
Geographic Range
13.4NM

Construction & History

Year Built
2009

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
21m
Tower Shape
cylindrical
Tower Color
red with a white horizontal band

Structure: round cylindrical tower with gallery, painted red with a white horizontal band

Location

City
Bremerhaven
Country
🇩🇪Germany
Region
Bremen
Sea Region
Weser-Jade-Nordsee region, marking a channel as part of a range system.
Latitude
53.6034°
Longitude
8.5102°

References & Identifiers

Nearest Port
Bremerhaven(4.1 km)
Admiralty No.
B1230
NGA No.
10381
ARLHS No.
FED-337
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Frequently Asked Questions

How do mariners identify Imsum Unterfeuer Lighthouse at night?+
Imsum Unterfeuer displays the characteristic Oc White 6s. 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 color may indicate a specific sector or warning zone.
Which ports and harbors does Imsum Unterfeuer Lighthouse guide vessels into?+
Imsum Unterfeuer Lighthouse assists vessels approaching 5 nearby ports. The closest is Bremerhaven at 3.4 NM to the SSE. Other ports served include Blexen (4.3 NM S), Butjadingen (5.3 NM WSW), Nordenham (7 NM S), Norden (7.3 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Imsum Unterfeuer Lighthouse still active and maintained?+
Yes, Imsum Unterfeuer 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 Imsum Unterfeuer Lighthouse?+
Imsum Unterfeuer Lighthouse is located within the English Channel / North Sea corridor — one of the world's busiest maritime corridors connecting the Atlantic to Northern European ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Imsum Unterfeuer Lighthouse?+
You can track vessels near Imsum Unterfeuer 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.