Port of Superior

USSUW🇺🇸USA

Port Location

Port Arrivals & Departures

Vessel Traffic

Port of Superior USSUW

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About Port of Superior

Located on the St. Marys River, this canal port serves as a vital link in the Great Lakes shipping system. It handles bulk cargo, primarily iron ore and coal, utilizing large self-unloading vessels. The port features extensive dockage and is equipped with tugs and a drydock for vessel maintenance.

Current Conditions

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Vessel Limits

Channel Depth
6ft
Elevation
10m

Operations & Services

Port of Entry
Yes
Pilotage Compulsory
Yes
Tug Assistance
Yes
Cranes
Fixed, Mobile
Drydock
Large
Repair Code
A

References & Identifiers

WPI No.
5450 →
GeoNames ID
4342947 →
Wikidata
Q7863055 →

Identification

UN/LOCODE
USSUW
Country
🇺🇸USA
Time Zone
UTC-6
Feature Type
CNL (Canal)

Classification

Type
Port
Harbor Type
Coastal breakwater
Shelter
Excellent

Region

Subdivision
US-WI
Area
Great Lakes
Sub-area
Lake Superior
Latitude
46.7500°
Longitude
-92.1192°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do I navigate the approach to the Port of Superior?

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The approach to Superior is supported by 5 navigation aids within 50 nautical miles. The nearest is St. Louis Bay Range Common Rear Lighthouse at 1.5 NM to the SW. Other aids include Duluth Harbor South Breakwater Inner (2.1 NM NNE), Duluth Harbor South Breakwater Outer (2.2 NM NE), Duluth Harbor North Pier (2.3 NM NE), St. Louis County (Duluth Area) Lighthouses (2.3 NM NE). Mariners should consult the relevant chart and List of Lights for full approach details.

What sea or ocean is the Port of Superior on?

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The Port of Superior is situated on the North Pacific Ocean in US. The area falls within the temperate maritime climate zone, which can influence port operations and seasonal shipping patterns.

How do I track vessels arriving at or departing from the Port of Superior?

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You can track vessels near Superior (USSUW) in real time using MarineRadar. The platform displays live AIS positions of nearby ships, including vessel name, type, flag, speed, and course.

Where is the Port of Superior?

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The Port of Superior is a port in US. Its UN/LOCODE is USSUW — the five-character code the UNECE assigns to trade and transport locations, and the identifier used on shipping documents and in port calls.

What does the UN/LOCODE USSUW mean?

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The first two characters, US, are the ISO country code for US. The remaining three identify the location within that country. The code is issued by the United Nations Economic Commission for Europe and is the international standard for naming ports in trade and transport systems.

What are the operating hours and time zone for the Port of Superior?

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The Port of Superior operates in the UTC-6 time zone. Operating hours, VTS schedules, and pilot availability vary — vessel agents should confirm with the port authority in advance, especially for night arrivals or weekend operations.