UN/LOCODE: CATHU📍 Canada
Port of Thunder Bay (UN/LOCODE CATHU)
❖ Coordinates: 48.3809°N, -89.2477°E
❖ Time Zone: America/Toronto
❖ UN/LOCODE: CATHU
## About the Port
Thunder Bay Port, identified by UN/LOCODE CATHU, represents a critical Great Lakes maritime hub situated along the eastern shoreline of Lake Superior at coordinates 48.3808951°N, -89.2476823°W within Ontario, Canada. This strategic deep-water facility operates within the America/Toronto timezone and serves as a pivotal gateway connecting inland North American grain and mineral markets to transoceanic shipping routes via the St. Lawrence Seaway system.
The port's unique geographic positioning provides exceptional access to Canada's vast interior resource regions while maintaining direct connectivity to Atlantic Ocean shipping lanes. Thunder Bay's harbor infrastructure accommodates vessel drafts up to 8.4 meters, enabling efficient handling of Panamax-class cargo ships during optimal navigation periods. The facility's natural harbor configuration, protected by Georgian Bay's coastal geography, offers superior weather resilience compared to many Great Lakes competitors.
## History
Thunder Bay's maritime heritage traces back to 1849 when European settlers established the first permanent dock facilities at the sheltered harbor. The port's transformation into a major commercial entity began following Canadian Pacific Railway completion in 1885, which enabled direct rail-to-ship cargo transfers. During the early 1900s, Thunder Bay emerged as Canada's preeminent grain export facility, processing approximately 40% of the nation's wheat shipments through Great Lakes routes.
The Great Depression severely impacted port operations, with cargo volumes declining over 60% between 1929 and 1939. Recovery accelerated during World War II when the port facilitated critical supply chain operations for Allied forces. Post-war expansion culminated in 1958 with St. Lawrence Seaway authorization, permanently deepening the harbor to accommodate ocean-going vessels and establishing Thunder Bay as a permanent Great Lakes seaport.
Major infrastructure modernization occurred throughout the 1980s-1990s, including automated cargo handling systems and expanded warehouse facilities. The 2008 financial crisis temporarily reduced throughput by 35%, though recovery has sustained Thunder Bay as one of Canada's top five Great Lakes grain export terminals.
## Infrastructure & Facilities
Thunder Bay Port encompasses 240 hectares of developed waterfront property featuring multiple specialized berths. The primary grain terminal complex includes three elevator terminals with combined storage capacity exceeding 1.2 million metric tons, utilizing modern conveyor systems for efficient unloaded-to-ship transfer rates of up to 1,200 tons per hour. Advanced magnetic separation technology removes metal contaminants prior to export loading.
The port's bulk cargo handling equipment includes two Liebherr-designed grab cranes with 35-ton capacity, supporting general cargo operations including steel products and project cargo. Icebreaking assistance ensures year-round operational capability, with temporary shutdown typically occurring only during severe winter storms when sustained winds exceed 45 knots.
Customs and quarantine facilities meet Canada Border Services Agency requirements, featuring dedicated containerized cargo inspection capabilities. The port provides laydown areas for oversized project cargo, including wind turbine components and heavy machinery. Intermodal rail siding connections to Canadian National Railway enable seamless cargo transshipment between lake vessels and domestic rail carriers.
## Economic Importance
Thunder Bay Port generates annual economic impact valued at $485 million CAD through direct employment and supporting services. The facility sustains approximately 1,800 full-time equivalent jobs across cargo handling, maintenance, and administrative functions. Major employers include Railnet Logistics, Marine Transport Lines, and multiple grain elevator operators contributing collective payroll exceeding $95 million annually.
The port's strategic significance extends to regional development, attracting secondary businesses including equipment repair services, construction firms, and hospitality providers within the Thunder Bay metropolitan area. Annual capital investment averaging $35 million supports infrastructure improvements and technology upgrades essential for maintaining competitive advantage.
Cargo diversification initiatives launched in 2015 successfully reduced grain dependency from 85% to 60% of total throughput, enhancing economic resilience. New specialty terminals now handle wind energy components, limestone aggregates, and forest products, creating additional revenue streams while preserving traditional strengths in bulk grain handling.
## Trade Routes & Major Cargo
Thunder Bay's primary trade route connects via Lake Superior to Lake Huron, through the St. Lawrence River system to New York and New Orleans destinations. Secondary routes extend to Great Lakes inland ports including Milwaukee, Chicago, and Detroit, facilitating regional cargo distribution networks.
Grain exports dominate cargo volume, comprising approximately 60% of annual tonnage with wheat accounting for 45% and barley 15%. Canadian Western Canadian Provinces supply 75% of grain cargoes, with U.S. Pacific Northwest contributions representing remainder. Key destination markets include Japan, South Korea, Egypt, and Mediterranean European nations.
Mineral exports including iron ore concentrates, taconite pellets, and copper cathode represent secondary cargo stream totaling 25% of throughput. Forest products including lumber, pulp, and wood chips contribute 10% of cargo volume, primarily destined for Asian markets via Suez Canal routing. Coal imports for domestic power generation occasionally supplement cargo mix during energy supply constraints.
Specialty project cargo including wind turbine components and industrial machinery demonstrates growing trend toward breakbulk shipments requiring coordinated stevedore operations and specialized terminal handling equipment. These diverse cargo streams collectively establish Thunder Bay as indispensable node within North American inland freight transportation network.
Port Intelligence
UN/LOCODE
CATHU
Country
Canada
Province / Region
Ontario
Latitude
48.380895
Longitude
-89.247682
Timezone
America/Toronto
Nautical Map (OpenSeaMap)
Loading Map...
Frequently Asked Questions
What is the UN/LOCODE for Port of Thunder Bay?
The official UN/LOCODE for Port of Thunder Bay is CATHU.
Where is Port of Thunder Bay located?
The Port of Thunder Bay is located in Canada, Ontario. Its coordinates are 48.3809°N, -89.2477°E.
What time zone is Port of Thunder Bay in?
Port of Thunder Bay operates in the America/Toronto time zone.
Scanning Local Infrastructure...
About the World Port Index
This data is sourced programmatically. The UN/LOCODE is the official geographic coding scheme used by the United Nations for trade and transport locations.
📍 Nearby Ports
Other maritime facilities geographically close to Thunder Bay.
Superior
United States • 283 km awayPearson
United States • 336 km awaySturgeon Bay
United States • 419 km awaySault-Sainte-Marie
Canada • 422 km away