Great Loop Lock Reference

Rideau Lock 27 - Old Slys

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

Rideau Canal

Rideau Lock 27 - Old Slys

Smiths Falls, ON

Latitude / Longitude44.893700
-76.014900

Phone613-283-2663

VHF ChannelNone listed / call lock

Operating AuthorityNot listed

Last ReviewedNot listed

Lock Location

Zoomed-in location for this Great Loop lock reference.

About This Lock

Segment: Rideau Canal. Route status: all-possible Canada/Ottawa/Kingston alternate connector. Individual lock row generated from lockstation numbering. Rideau source counts 47 locks; phone from lockstation phone list where available (https://www.rideau-info.com/canal/lock_numbers.html). Source: https://www.rideau-info.com/canal/locks/index.html

Before You Arrive

Fenders ready
Lines ready
Crew briefed
PFDs on deck
Radio on correct channel
Call / monitor lock
Check current notices

Plan With FPW

Add lock planning context to your route and account for lock delays in your float plan.

Plan a Float Plan

Official Source

Official source

Open official source

Navigation Safety Note

This page is a planning reference, not a substitute for official notices, charts, lockmaster instructions, or current local conditions. Always confirm lock status, operating hours, closures, restrictions, and instructions with the official authority before arrival.