Lock 9 - Meyers
Meyers, ON • Trent-Severn Waterway
- VHF
- None listed
- Phone
- 705-750-4900
Great Loop Planning Resource
Great Loop Lock Reference Library
Use this searchable Great Loop lock reference library to find lock locations, VHF channels, phone numbers, approach notes, and practical trip-planning details. Browse by state or waterway to help organize your route and prepare for each lock along the way.
This library currently includes 275 reviewed Great Loop locks and related navigation structures. The number you actually encounter depends on your route, optional waterways, Canadian or U.S. alternatives, detours, and seasonal conditions.
Continue planning with the Great Loop bridge library and Great Loop ports directory.
275Reviewed public locks
19States / provinces
29Waterways
275Total imported reference rows
Plan your Great Loop trip for free
Plot your route and stops, calculate mileage, travel time, fuel, reserve, and cost, and adjust speed and weather assumptions as you plan.
Free account required to save your trip.
No reviewed lock markers match the current filters.
E10 Cranesville
Amsterdam, NY • Erie Canal
- VHF
- 13
- Phone
- (518) 887-5450
E26 Clyde
Clyde, NY • Erie Canal
- VHF
- 13
- Phone
- (315) 923-9720
CS4 Waterloo
Waterloo, NY • Cayuga-Seneca Canal
- VHF
- 13
- Phone
- (315) 539-3242
Lock and Dam 1
Minneapolis, MN • Upper Mississippi River
- VHF
- 13/14 verify
- Phone
- Verify current USACE district/CorpsLocks
Rideau Lock 9 - Hartwells
Ottawa, ON • Rideau Canal
- VHF
- None listed / call lock
- Phone
- 613-235-2644
Rideau Lock 10 - Hartwells
Ottawa, ON • Rideau Canal
- VHF
- None listed / call lock
- Phone
- 613-235-2644
E24 Baldwinsville
Baldwinsville, NY • Erie Canal
- VHF
- 13
- Phone
- (315) 635-3101
E2 Waterford
Waterford, NY • Erie Canal
- VHF
- 13
- Phone
- (518) 237-0810
Lock and Dam 18
Gladstone, IL • Upper Mississippi River
- VHF
- 13/14 verify
- Phone
- Verify current USACE district/CorpsLocks
No reviewed public lock rows match this view yet.
The library only displays reviewed rows marked public. Imported rows remain hidden until reviewed.
How to Lock Through
Approach slowly, prepare lines and fenders before arrival, monitor the published VHF channel when available, and follow lockmaster instructions.
VHF Call Scripts
Use the lock name, vessel name, direction of travel, and your request. Confirm current instructions before entering.
Lock Etiquette
Keep wake down near approaches, brief crew before entering, yield as directed, and avoid crowding other vessels.
Gear Checklist
Have fenders, lines, gloves, PFDs, boat hooks, and a working radio ready before reaching the approach.
Common Mistakes
Do not rely on old schedules, stale notes, or unofficial status reports. Check current notices and local lock instructions.
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.