US Army Corps of Engineers
Rock Island District Website

Lock Status

(Updated: September 20, 2021)

Locks within the Rock Island District may close throughout the year due to high water or scheduled/unscheduled maintenance. The District will update this site regularly (Monday-Friday) with available information regarding the status of each lock. Current lock status information for all locks within the country can be found at: Lock Status Report.

Mississippi River

Name
(River Mile)
Location Status Flood Stage Closure Stage
Lock & Dam 11
(RM 583)
Dubuque, IA OPEN 16.0 20.8
Lock & Dam 12
(RM 556.5)
Bellevue, IA OPEN 17.0 18.4
Lock & Dam 13
(RM 522.5)
Fulton, IL OPEN
 
16.0 19.0
Lock & Dam 14
(RM 493.5)
Pleasant Valley, IA OPEN
 
11.0 14.0
Locks & Dam 14 (Aux)
(RM 493.5)
Pleasant Valley, IA

Closed
(Open Memorial Day - Labor Day)

   
Lock & Dam 15
(RM 483)
Rock Island, IL OPEN
 
15.0 20.0
Locks & Dam 15 (Aux)
(RM 483)
Rock Island, IL OPEN    
Lock & Dam 16
(RM 457)
Illinois City, IL OPEN 15.0 17.0
Lock & Dam 17
(RM 437)
New Boston, IL OPEN 15.0 18.1
Lock & Dam 18
(410.5)
Gladstone, IL

OPEN

10.0 14.9
Lock & Dam 19
(RM 364)
Keokuk, IA OPEN
 
16.0 21.2
Lock & Dam 20
(RM 343)
Canton, MO OPEN 14.0 18.0
Lock & Dam 21
(RM 325)
Quincy, IL OPEN
 
17.0 21.9
Lock & Dam 22
(RM 301)
New London, MO

OPEN

16.0

21.4

 

Illinois River

Name
(River Mile)
Location Status Flood Stage Closure Stage
Brandon Road
(RM 286)
Joliet, IL OPEN 507.00 539.40
Dresden Island
(RM 272)
Morris, IL

OPEN

491.53 505.44
Marseilles
(RM 245)
Marseilles, IL OPEN 467.00 483.50
Starved Rock
(RM 231)
Ottawa, IL OPEN 450.00 461.50
Peoria
(RM 158)
Creve Coeur, IL

OPEN

447.00

N/A
Open Pass

LaGrange
(RM 80)
Versailles, IL OPEN
 
23.00

N/A
Open Pass