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St. Louis Bridge Range Rear Lighthouse

F Yellow 2s🇨🇦Saint-Louis-de-Gonzague, CAOperational

Location & Light Range

About St. Louis Bridge Range Rear Lighthouse

The St. Louis Bridge Range Rear light guides vessels upstream south of the St. Louis Bridge, part of Autoroute 30, on the south side of the Beauharnois Canal. This square pyramidal skeletal tower stands 18 meters tall and is colored orange with a black vertical stripe. Its yellow light has a geographic range of 12.9 nautical miles. The tower carries a daymark and is constructed of steel. It is located near Saint-Louis-de-Gonzague and the port of Beauharnois.

Why it matters: This range light is essential for guiding vessels safely upstream through the Beauharnois Canal, particularly as they navigate the approach to the St. Louis Bridge.

Light & Optic

Characteristic Signature
F Yellow 2s
Flash Type
Fixed
Light Color
Yellow
Interval
2s
Raw Code
F Y
Focal Height
19m
Geographic Range
12.9NM

Location

City
Saint-Louis-de-Gonzague
Country
🇨🇦Canada
Region
Quebec
Sea Region
Guides vessels upstream south of the St. Louis Bridge (Autoroute 30) on the south side of the Beauharnois Canal.
Latitude
45.2523°
Longitude
-73.9536°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
18m
Tower Shape
square
Tower Color
Orange with a black vertical stripe
Material
steel

Structure: square pyramidal skeletal tower carrying a daymark colored orange with a black vertical stripe

References & Identifiers

Nearest Port
Beauharnois(5.5 km)
Admiralty No.
H2531.1
NGA No.
5844
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Frequently Asked Questions

How do mariners identify St. Louis Bridge Range Rear Lighthouse at night?+
St. Louis Bridge Range Rear displays the characteristic F Yellow 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 yellow color may indicate a specific sector or warning zone.
Which ports and harbors does St. Louis Bridge Range Rear Lighthouse guide vessels into?+
St. Louis Bridge Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is L'Île-des-Soeurs (Nuns Island) at 4.4 NM to the NW. Other ports served include BEAUHARNOIS (5 NM NE), Valleyfield (6.2 NM WSW), DORION (8.2 NM NNW), ILE PERROT (8.5 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is St. Louis Bridge Range Rear Lighthouse still active and maintained?+
Yes, St. Louis Bridge Range Rear 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 St. Louis Bridge Range Rear Lighthouse?+
You can track vessels near St. Louis Bridge Range Rear 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.