Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Stamford Harbor Ledge Lighthouse

Fl W 4s🇺🇸Connecticut, USInactive

Location & Light Range

About Stamford Harbor Ledge Lighthouse

This lighthouse stands on Chatham Rock, offshore from Stamford, Connecticut. The white tower reaches a focal height of 24.5 meters. Its light produces a white flash. The structure contains seven interior levels. Access to the lighthouse is provided by a floating dock.

Why it matters: The lighthouse was listed on the National Register of Historic Places in 1991.

Background
Stamford Harbor Ledge Lighthouse is a lighthouse in Connecticut, United States, on Chatham Rock off of Stamford, Connecticut. It was added to the National Register of Historic Places in 1991. The interior of the structure has seven levels. The upper balcony boasts sweeping views of the Stamford and Manhattan skylines, as well as Long Island Sound and Stamford Harbor. The lighthouse is accessed by a floating dock.

Light & Optic

Characteristic Signature
Fl W 4s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Fl
Focal Height
24.5m

Construction & History

Heritage Status
National Register of Historic Places listed place

References & Identifiers

Wikipedia
Read on Wikipedia →
Wikidata
Q7597392 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Color
white

Location

City
Connecticut
Country
🇺🇸US
Latitude
41.0136°
Longitude
-73.5426°

Nearby Vessels

Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Stamford Harbor Ledge Lighthouse on the live nautical map

Plan voyages near US, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Stamford Harbor Ledge Lighthouse at night?+
Stamford Harbor Ledge displays the characteristic Fl W 4s — 1 white 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.
Which ports and harbors does Stamford Harbor Ledge Lighthouse guide vessels into?+
Stamford Harbor Ledge Lighthouse assists vessels approaching 5 nearby ports. The closest is Stamford Harbor at 1 NM to the N. Other ports served include OLD GREENWICH (1.8 NM WSW), STAMFORD (2 NM NNE), Greenwich (2.9 NM W), DARIEN (3.4 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Stamford Harbor Ledge Lighthouse still active and maintained?+
Stamford Harbor Ledge Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
What shipping routes pass near Stamford Harbor Ledge Lighthouse?+
Stamford Harbor Ledge Lighthouse is located within the US East Coast shipping lane — a major shipping corridor serving ports along the Atlantic seaboard of the United States. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Stamford Harbor Ledge Lighthouse?+
You can track vessels near Stamford Harbor Ledge 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.