Great Loop Planning Resource

Illinois Great Loop Locks

Explore 18 reviewed public Great Loop lock references in Illinois, including locations, VHF channels, phone numbers, waterways, and planning notes.

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.

Locks in Illinois

18 reviewed public lock references are available for this Great Loop view.

Brandon Road Lock

Joliet, IL • Chicago / Illinois Waterway

VHF
14
Phone
815-744-1714

Chain of Rocks Lock 27

Granite City, IL • Upper Mississippi River / Chain of Rocks Canal

VHF
12
Phone
Not listed

LaGrange Lock

Versailles, IL • Chicago / Illinois Waterway

VHF
14
Phone
217-225-3317

Lock and Dam 13

Fulton, IL • Upper Mississippi River

VHF
13/14 verify
Phone
Verify current USACE district/CorpsLocks

Lock and Dam 15

Rock Island, IL • Upper Mississippi River

VHF
13/14 verify
Phone
Verify current USACE district/CorpsLocks

Lock and Dam 16

Illinois City, IL • Upper Mississippi River

VHF
13/14 verify
Phone
Verify current USACE district/CorpsLocks

Lock and Dam 17

New Boston, IL • Upper Mississippi River

VHF
13/14 verify
Phone
Verify current USACE district/CorpsLocks

Lock and Dam 18

Gladstone, IL • Upper Mississippi River

VHF
13/14 verify
Phone
Verify current USACE district/CorpsLocks

Lock and Dam 21

Quincy, IL • Upper Mississippi River

VHF
13/14 verify
Phone
Verify current USACE district/CorpsLocks

Lockport Lock

Lockport, IL • Chicago / Illinois Waterway

VHF
14
Phone
815-838-0536

Marseilles Lock

Marseilles, IL • Chicago / Illinois Waterway

VHF
14
Phone
815-795-2593

Peoria Lock

Creve Coeur, IL • Chicago / Illinois Waterway

VHF
14
Phone
309-699-6111

Starved Rock Lock

Ottawa, IL • Chicago / Illinois Waterway

VHF
14
Phone
815-667-4114

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.