The Lock Performance Monitoring System (LPMS) and Lock Characteristics database provides Corps operators, planners, and managers with information on the use, performance, and characteristics of the Corps' national system of locks. LPMS consists of data collected at most Corps-owned and/or Corps-operated locks. Data is collected at each lock and electronically transmitted to the central database which is managed and distributed by NDC. The data, from years 1980 to present, includes the number of vessels and barges locked; type and dates of lockages; durations of, and causes for, periods of lock unavailability; barge type, size, and commodity type; and tonnages carried. Statistics are published monthly for selected key locks and annually for all locks. For Corps personnel only, direct on-line database access is available.

Public Lock Commodity Report Calendar Years 1999-2016 (.xlsx) (Updated 2 February 2017)

Public_Lock_Usage_Report_files Calendar Years 1993-2016 (.xlsx) (Updated 2 February 2017)

Public_Lock_Unavailability_Report_files,Calendar Years 1993-2016 (.xlsx) (Updated 2 February 2017)

Public_Lock_Report_Glossary, Calendar Years 1993-2016 (in pdf) (Updated 25 April 2016)

The Key Lock Report provides a monthly summary and year-to-date totals of commodity tonnages and barge traffic for key locks on the inland waterways.

The Key Lock Legend includes a report description, list of locks by waterway, tables for report format, commodity codes, and district and division symbols.

The following Summary of Lock Statistics reports provide year-to-date summaries and previous year comparisons of vessel traffic, commodity tonnage, tows and barges, delay times, and other statistics for each lock chamber.

Definition of Terms

By River


By Division/District

2015 & 2016
2014 & 2015
2013 & 2014
2012 & 2013
2011 & 2012

The physical Characteristics of all Corps owned and/or operated locks.

General Characteristics of Locks

  • River Mile
  • Year Open
  • Chamber Length
  • Chamber Width
  • Lift
  • Status (e.g. Operational, Seasonal, etc.)
  • Owner/Operator
  • Gate Type (e.g. Miter, Sector, etc.)


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