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Incheon Lock Gate South Lighthouse

Fl Red 5s🇰🇷Incheon, KROperational

Location & Light Range

About Incheon Lock Gate South Lighthouse

This concrete lighthouse, standing 14 meters tall, is located at the end of a short breakwater north of the lock entrance into Incheon's inner harbor. Its structure consists of a square tower with a lantern and gallery, centered on a square equipment building. The focal height of the light is 20.1168 meters, and it emits a red flash every 5 seconds, visible for 13.2 nautical miles. The tower itself is painted red. This navigational aid is situated 4.5 kilometers from the nearest port of Incheon, guiding vessels into the harbor.

Why it matters: This lighthouse is essential for the safe passage of ships entering and exiting Incheon's inner harbor through its lock system, marking the northern side of the lock entrance.

Light & Optic

Characteristic Signature
Fl Red 5s
Flash Type
Flashing
Light Color
Red
Interval
5s
Raw Code
Fl R 5s
Focal Height
20.1168m
Geographic Range
13.2NM

Location

City
Incheon
Country
🇰🇷South Korea
Sea Region
Incheon's inner harbor, at the end of a short breakwater north of the lock entrance
Latitude
37.4689°
Longitude
126.5949°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
14m
Tower Shape
square
Tower Color
red
Material
concrete

Structure: concrete tower with lantern and gallery, centered on a square concrete equipment building

References & Identifiers

Nearest Port
Incheon(4.5 km)
Admiralty No.
M4173.6
NGA No.
17968.5
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Frequently Asked Questions

How do mariners identify Incheon Lock Gate South Lighthouse at night?+
Incheon Lock Gate South displays the characteristic Fl Red 5s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Incheon Lock Gate South Lighthouse guide vessels into?+
Incheon Lock Gate South Lighthouse assists vessels approaching 5 nearby ports. The closest is Gyeongin at 3.9 NM to the N. Other ports served include Incheon (5 NM SW), BUCHEON (7.6 NM ENE), Seoul (16.4 NM E), DANGJIN (24.7 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Incheon Lock Gate South Lighthouse still active and maintained?+
Yes, Incheon Lock Gate South 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.
How can I track vessels near Incheon Lock Gate South Lighthouse?+
You can track vessels near Incheon Lock Gate South 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.