St. Lawrence Seaway Management CorporationSt. Lawrence Seaway Management Corporation

A 21st century transportation system employing leading edge technology

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Managing a shared resource for the benefit of all

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A 21st century transportation system employing leading edge technology

Learn more >

Managing a shared resource for the benefit of all

Learn more >

Commercial ShippingChevron image

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Bridge StatusChevron image

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Seaway MapChevron image

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The SeawayChevron image

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St. Lawrence Seaway Management Corporation and UNIFOR Ratify New Collective Bargaining Agreements

Closing of 2021 Seaway Navigation Season - A summary of closing information is now available, including water temperatures and Environment Canada weather forecasts.

SLSMC 2021 Annual Corporate Summary

Great Lakes St. Lawrence Seaway Development Corporation Unveils New Corporate Seal

Pleasure Craft Lockage Season at Iroquois Lock

How to Pay Pleasure Craft Tolls