Great Loop Planning Resource

Great Loop Lock Reference Library

Find lock locations, phone numbers, VHF channels, operating notes, approach details, and boater-friendly guidance for locks along the Great Loop.

Browse Locks by State Learn How to Lock Through Plan a Float Plan
275Reviewed public locks
19States / provinces
29Waterways
275Total imported reference rows

Lock Map

Search and browse reviewed Great Loop lock references.

Learn & Prepare

How to LockStep-by-step guide VHF Call ScriptsWhat to say Lock EtiquetteDo's and don'ts Gear ChecklistWhat you need Common MistakesWhat to avoid

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.