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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NewsChevron image

Adam Tindall-Schlicht Announced as New Great Lakes St. Lawrence Seaway Development Corporation Administrator

The St. Lawrence Seaway Management Corporation: Tackling Supply Chain Challenges and Climate Change

Closing of 2022 Seaway Navigation Season - A summary of closing information is now available, including water temperatures and Environment Canada weather forecasts.

Secretary Buttigieg and Deputy Secretary Trottenberg Celebrate Groundbreaking of New Seaway Visitor Center in Massena, N.Y.

Annual Corporate Summary 2021-2022