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Great Loop Lock Reference

Welland Canal Lock 3

Reviewed planning reference for lock approach, communications, and float-plan preparation.

Welland Canal

Welland Canal Lock 3

St. Catharines, ON

Latitude / Longitude43.155433
-79.193300
Phone289-690-4344
VHF Channel14/77
Operating AuthorityNot listed
Last Reviewed2026-07-09

Lock Location

Zoomed-in location for this Great Loop lock reference.

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About This Lock

Segment: Welland Canal. Route status: Great Lakes alternate when not using Trent-Severn/complete Erie route. Waterway Guide lock page; Welland locks monitor VHF 14 except inside lock; mooring uses listed channel. Source: https://greatlakes-seaway.com/en/the-seaway/our-locks-and-channels/

Continue planning: Check Marine Weather, estimate your trip with the Boat Fuel Calculator, or review the Solo Boating Safety Guide.

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