Datasets

3 datasets

Tag: seaway Clear all

U.S Department of Transportation

Great Lakes St. Lawrence Seaway Performance

This dataset contains monthly performance statistics for the Great Lakes-St. Lawrence Seaway system.

CSV
JSON
XSL

Updated Oct 25, 2026

U.S Department of Transportation

Great Lakes St. Lawrence Seaway Vessel Transits

The Great Lakes St. Lawrence Seaway’s navigation season generally begins in late March and closes in late December. Opening and closing dates vary from year to year.

Updated Oct 25, 2026

U.S Department of Transportation

Great Lakes St. Lawrence Seaway - U.S. Sector Reliability Rate

The Great Lakes St. Lawrence Seaway’s navigation season generally begins in late March and closes in late December. Opening and closing dates vary from year to year.

Updated Oct 25, 2026