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Mississippi River Lock Status

Locks may close throughout the summer due to scheduled or unscheduled maintenance. During high water events, this page will show updated information reguarding the status of each lock. For current lock status during the rest of the year, visit the Corps' Lock Performance Monitoring System, Lock Status Report @ Lock Status Report



River Mile




Lock and Dam 11  583 Dubuque, Iowa
Lock and Dam 12  557 Bellevue, Iowa
Lock and Dam 13  523 Fulton, Illinois


Lock and Dam 14  493 Pleasant Valley, Iowa


Lock and Dam 15  483 Rock Island, Illinois
Lock and Dam 16  457 Muscatine, Iowa
Lock and Dam 17  437 New Boston, Illinois
Lock and Dam 18  411 Gladstone, Illinois
Lock and Dam 19  364 Keokuk, Iowa
Lock and Dam 20  343 Canton, Missouri
Lock and Dam 21  325 Quincy, Illinois
Lock and Dam 22  301 Saverton, Missouri