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US Army Corps of Engineers Lock Performance Monitoring System

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Welcome to Corps Locks!

The Corps Locks website contains lock and vessel specific information derived from the United States Army Corps of Engineers Lock Performance Monitoring System (LPMS). The information contained here represents an every 15-minute updated snapshot of Freedom of Information Act (FOIA) data on U.S. flag vessels and foreign vessels operating in U.S. waterways that transited a Corps-owned or operated lock structure. Detailed information on specific companies or commodities is considered privileged and is not included in the Corps Locks website.

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Notifications

04/21/2020: Two new JSON Data Web Services have been added (Active/Future Stoppages & Locks with Current Delay Time).

04/20/2020: Lock Status Report has been updated to include Hydro Readings

12/10/2018: Corps Locks was updated to be 508 compliant.

01/17/2017: A new report, additional clarification of terms, and calculation corrections have been deployed.

10/04/2016: Average Delay calculations now include vessels in queue.