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Shangshuangshi Lighthouse

Fl R 4s🇨🇳Southeastern Zhoushan Islands, Zhejiang, CNOperational

Location & Light Range

About Shangshuangshi Lighthouse

Shangshuangshi Lighthouse is a red, round concrete column standing 36 meters tall. Situated in the southeastern Zhoushan Islands, its light is situated at a focal height of 27 meters. The lighthouse emits a single red flash every 4 seconds. It has a geographic range of 6 nautical miles.

Light & Optic

Characteristic Signature
Fl R 4s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
4s
Raw Code
Fl.R. period 4s
Focal Height
27m
Geographic Range
6NM

Location

City
Southeastern Zhoushan Islands, Zhejiang
Country
🇨🇳CN
Latitude
29.7352°
Longitude
122.0431°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
36m
Tower Shape
round
Tower Color
red
Material
concrete

Structure: Red round concrete column; 36

References & Identifiers

Admiralty No.
P3692
NGA No.
18978
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Frequently Asked Questions

How do mariners identify Shangshuangshi Lighthouse at night?+
Shangshuangshi displays the characteristic Fl R 4s — 1 red flash every 4 seconds. 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 Shangshuangshi Lighthouse guide vessels into?+
Shangshuangshi Lighthouse assists vessels approaching 5 nearby ports. The closest is LIUHENG at 5 NM to the E. Other ports served include Daxie Pt (10.1 NM NNW), Zhoushan (14.2 NM NE), Beilun (14.5 NM NW), Ningbo Pt (15.2 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shangshuangshi Lighthouse still active and maintained?+
Yes, Shangshuangshi 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 Shangshuangshi Lighthouse?+
You can track vessels near Shangshuangshi 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.