Bulk Cargoes:

The St. Lawrence Seaway was built to transport bulk cargoes and while markets have changed since the Seaway opened in 1959, bulk cargoes have remained an important part of the System’s cargo mix. Bulk cargoes such as iron ore, coal aggregate products, salt, gypsum, potash, and a variety of other commodities are shipped annually via the System. Liquid bulk commodities, such as petroleum and chemicals, are also shipped via the System. Ocean vessels often take advantage of the availability of grain shipments as a backhaul cargo.

Among the domestic fleet of bulk vessels are self-unloaders. These vessels unload their cargoes through tunnel belt systems within the vessel cargo holds that carry bulk commodities to elevating conveyors and the vessel's discharge boom. Self-unloaders can discharge their cargo in as little as six hours to storage areas, offering customers reliable, flexible service.


Breakbulk:

The Great Lakes St. Lawrence Seaway System offers a competitive routing option for breakbulk cargoes including large, heavy, and over-dimensional cargoes traveling to and from the North American heartland. Ports along the System are experienced in providing innovative logistics solutions for complex projects to meet the needs of each individual customer. Many Great Lakes / Seaway Ports Cargoes offer secure lay down areas for the staging and storage of project cargo, as well as warehouse capacity. Cargoes have included projects of all shapes and sizes, including wind turbines, locomotives, pressure vessels, reactors, refinery equipment/machinery, pipe and pipeline equipment, power plant components, etc.


Containers:

Containers represent a potential growth market for the Great Lakes St. Lawrence Seaway System. Container shipping via the marine mode is an alternative shipping option, one that offers several real advantages to customers, such as the ability to carry heavy containers and a reduction of greenhouse gas emissions. Compared to surface modes of transportation that have experienced various levels of congestion and delays, the St. Lawrence Seaway has the capacity to significantly increase its cargo volumes.

Visit our Hwy H2O Port Partners map to access individual port information.