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Harbor Island Range Front Lighthouse

Iso Green/White 2s🇺🇸Port Aransas, USOperational

Location & Light Range

About Harbor Island Range Front Lighthouse

This active range light is a 19-meter square skeletal tower located about 0.2 km from Port Aransas. Its focal height is 20 meters, with a geographic range of 13.2 nautical miles. The light displays an isophase green flash every 2 seconds at night and an isophase white flash every 2 seconds during the day. It guides vessels through a dredged cut that has replaced the historic Aransas Pass for commercial traffic. The light is visible only when a vessel is aligned correctly.

Why it matters: This range light is indispensable for commercial vessels navigating the critical dredged cut, which serves as the primary gateway to regional ports. Its precise green and white isophase light ensures ships maintain the exact alignment necessary for safe passage through this engineered channel.

Light & Optic

Characteristic Signature
Iso Green/White 2s
Flash Type
Isophase
Light Color
Green/White
Interval
2s
Raw Code
Iso G 2s (night) / Iso W 2s (day)
Focal Height
20m
Geographic Range
13.2NM

Location

City
Port Aransas
Country
🇺🇸United States
Region
Texas
Sea Region
Guides vessels through the dredged cut that has replaced Aransas Pass for commercial traffic, located about 1.75 miles southwest of the historic lighthouse.
Latitude
27.8459°
Longitude
-97.0617°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
19m
Tower Shape
skeletal

Structure: A 19m square skeletal tower.

References & Identifiers

Nearest Port
Port Aransas(0.2 km)
Admiralty No.
J4213
USCG No.
4-28145
ARLHS No.
USA-1367
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Frequently Asked Questions

How do mariners identify Harbor Island Range Front Lighthouse at night?+
Harbor Island Range Front displays the characteristic Iso Green/White 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 green/white color may indicate a specific sector or warning zone.
Which ports and harbors does Harbor Island Range Front Lighthouse guide vessels into?+
Harbor Island Range Front Lighthouse assists vessels approaching 5 nearby ports. The closest is PORT ARANSAS at 0.4 NM to the S. Other ports served include Aransas Pass (5 NM NW), Ingleside (7.9 NM W), ROCKPORT (11.5 NM N), FULTON (13.7 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Harbor Island Range Front Lighthouse still active and maintained?+
Yes, Harbor Island Range Front 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 Harbor Island Range Front Lighthouse?+
You can track vessels near Harbor Island Range Front 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.