# Lock Wait

> Historical US inland navigation lock performance and available current queue observations, sourced from USACE LPMS.

## Interpretation

Wait is arrival to start of lockage; it differs from the Corps four-hour delay metric. Missing data is not zero. Recent completed lockages can understate ongoing delays. Individual cargo, shipper and destination are not provided. Operator matches may reflect earlier ownership. Times are local as reported, without daylight-saving normalization. Status archiving began 2026-10-04; passage coverage varies by lock. Monthly and annual historical summaries are also published by USACE.

## Main pages

- [All locks](https://lockwait.com/)
- [Definitions and coverage](https://lockwait.com/numbers.html)
- [Collection methodology](https://lockwait.com/architecture.html)
- [Analysis articles](https://lockwait.com/articles.html)
- [Complete page inventory](https://lockwait.com/sitemap.xml)
- [Current structured lock summaries](https://lockwait.com/data/index.json)

## Lock pages

- [Claiborne Lock and Dam (AL-11)](https://lockwait.com/locks/AL-11.html)
- [Millers Ferry Lock and Dam (AL-12)](https://lockwait.com/locks/AL-12.html)
- [Robert F. Henry Lock and Dam (AL-13)](https://lockwait.com/locks/AL-13.html)
- [C.W. Bill Young Lock and Dam (AG-43)](https://lockwait.com/locks/AG-43.html)
- [Lock and Dam 2 (AG-42)](https://lockwait.com/locks/AG-42.html)
- [Lock and Dam 4 (AG-44)](https://lockwait.com/locks/AG-44.html)
- [Lock and Dam 5 (AG-45)](https://lockwait.com/locks/AG-45.html)
- [Lock and Dam 6 (AG-46)](https://lockwait.com/locks/AG-46.html)
- [Lock and Dam 7 (AG-47)](https://lockwait.com/locks/AG-47.html)
- [Lock and Dam 8 (AG-48)](https://lockwait.com/locks/AG-48.html)
- [Lock and Dam 9 (AG-49)](https://lockwait.com/locks/AG-49.html)
- [George W Andrews Lock and Dam (AP-22)](https://lockwait.com/locks/AP-22.html)
- [Jim Woodruff Lock and Dam (AP-21)](https://lockwait.com/locks/AP-21.html)
- [Walter F George Lock and Dam (AP-23)](https://lockwait.com/locks/AP-23.html)
- [Berwick Lock (AT-11)](https://lockwait.com/locks/AT-11.html)
- [Great Bridge Guard Lock (AI-11)](https://lockwait.com/locks/AI-11.html)
- [Keystone Lock (BT-31)](https://lockwait.com/locks/BT-31.html)
- [Black Rock Lock (BR-01)](https://lockwait.com/locks/BR-01.html)
- [Armstd I. Selden Lock and Dam (BW-03)](https://lockwait.com/locks/BW-03.html)
- [Coffeeville Lock (BW-01)](https://lockwait.com/locks/BW-01.html)
- [Demopolis Lock and Dam (BW-02)](https://lockwait.com/locks/BW-02.html)
- [Holt Lock and Dam (BW-05)](https://lockwait.com/locks/BW-05.html)
- [John Hollis Bankhead Lock and Dam (BW-06)](https://lockwait.com/locks/BW-06.html)
- [William Bacon Oliver Lock and Dam (BW-04)](https://lockwait.com/locks/BW-04.html)
- [Calcasieu Salt Water Barrier (CA-23)](https://lockwait.com/locks/CA-23.html)
- [Canaveral Lock (CN-21)](https://lockwait.com/locks/CN-21.html)
- [Lock and Dam 1 (FR-01)](https://lockwait.com/locks/FR-01.html)
- [Lock and Dam 2 (FR-02)](https://lockwait.com/locks/FR-02.html)
- [William O Huske Lock and Dam (FR-03)](https://lockwait.com/locks/FR-03.html)
- [Chicago Lock (CH-01)](https://lockwait.com/locks/CH-01.html)
- [Melton Hill Lock (CI-11)](https://lockwait.com/locks/CI-11.html)
- [Bonneville Lock and Dam (CO-01)](https://lockwait.com/locks/CO-01.html)
- [John Day Lock and Dam (CO-03)](https://lockwait.com/locks/CO-03.html)
- [McNary Lock and Dam (CO-24)](https://lockwait.com/locks/CO-24.html)
- [The Dalles Dam (CO-02)](https://lockwait.com/locks/CO-02.html)
- [Barkley Lock (CU-21)](https://lockwait.com/locks/CU-21.html)
- [Cheatham Lock (CU-22)](https://lockwait.com/locks/CU-22.html)
- [Cordell Hull Lock (CU-23)](https://lockwait.com/locks/CU-23.html)
- [Old Hickory Lock (CU-24)](https://lockwait.com/locks/CU-24.html)
- [Deep Creek Lock (DS-01)](https://lockwait.com/locks/DS-01.html)
- [South Mills Lock (DS-02)](https://lockwait.com/locks/DS-02.html)
- [Freshwater Bayou Lock (FB-41)](https://lockwait.com/locks/FB-41.html)
- [Lock and Dam 1 (GB-21)](https://lockwait.com/locks/GB-21.html)
- [Lock and Dam 2 (GB-22)](https://lockwait.com/locks/GB-22.html)
- [Lock and Dam 3 (GB-23)](https://lockwait.com/locks/GB-23.html)
- [Algiers Lock (GI-04)](https://lockwait.com/locks/GI-04.html)
- [Bayou Boeuf Lock (GI-06)](https://lockwait.com/locks/GI-06.html)
- [Bayou Sorrel Lock (GI-02)](https://lockwait.com/locks/GI-02.html)
- [Brazos East Gate (GI-13)](https://lockwait.com/locks/GI-13.html)
- [Brazos West Gate (GI-14)](https://lockwait.com/locks/GI-14.html)
- [Calcasieu Lock (GI-08)](https://lockwait.com/locks/GI-08.html)
- [Catfish Point Control Struct (GI-22)](https://lockwait.com/locks/GI-22.html)
- [Colorado River East Lock (GI-11)](https://lockwait.com/locks/GI-11.html)
- [Colorado River West Lock (GI-12)](https://lockwait.com/locks/GI-12.html)
- [Harvey Lock (GI-05)](https://lockwait.com/locks/GI-05.html)
- [Inner Hrbr Navigation Canl Lk (GI-03)](https://lockwait.com/locks/GI-03.html)
- [Leland Bowman Lock (GI-77)](https://lockwait.com/locks/GI-77.html)
- [Port Allen Lock (GI-01)](https://lockwait.com/locks/GI-01.html)
- [Schooner Bayou Control Struct (GI-21)](https://lockwait.com/locks/GI-21.html)
- [Troy Lock and Dam (HU-01)](https://lockwait.com/locks/HU-01.html)
- [Brandon Road Lock and Dam (IL-03)](https://lockwait.com/locks/IL-03.html)
- [Dresden Island Lock and Dam (IL-04)](https://lockwait.com/locks/IL-04.html)
- [Lagrange Lock and Dam (IL-08)](https://lockwait.com/locks/IL-08.html)
- [Lockport Lock (IL-02)](https://lockwait.com/locks/IL-02.html)
- [Marseilles Lock and Dam (IL-05)](https://lockwait.com/locks/IL-05.html)
- [Peoria Lock and Dam (IL-07)](https://lockwait.com/locks/IL-07.html)
- [Starved Rock Lock and Dam (IL-06)](https://lockwait.com/locks/IL-06.html)
- [Thomas J. O'Brien Lock (IL-01)](https://lockwait.com/locks/IL-01.html)
- [London Locks and Dam Main 1 (KA-03)](https://lockwait.com/locks/KA-03.html)
- [Marmet Locks and Dam Main 1 (KA-02)](https://lockwait.com/locks/KA-02.html)
- [Winfield Locks and Dam Main 1 (KA-01)](https://lockwait.com/locks/KA-01.html)
- [Jerry F. Costello Lock and Dam (KS-01)](https://lockwait.com/locks/KS-01.html)
- [Hiram M Chittenden Locks (WS-01)](https://lockwait.com/locks/WS-01.html)
- [Arthur V Ormond L and D (MK-09)](https://lockwait.com/locks/MK-09.html)
- [Chouteau Lock and Dam (MK-24)](https://lockwait.com/locks/MK-24.html)
- [Col Charles D Maynard (MK-05)](https://lockwait.com/locks/MK-05.html)
- [Dardanelle Lk and Dam (MK-10)](https://lockwait.com/locks/MK-10.html)
- [David D Terry Lock and Dam (MK-06)](https://lockwait.com/locks/MK-06.html)
- [Emmett Sanders Lock and Dam (MK-04)](https://lockwait.com/locks/MK-04.html)
- [James W. Trimble Lock and Dam (MK-13)](https://lockwait.com/locks/MK-13.html)
- [Joe Hardin Lock and Dam (MK-03)](https://lockwait.com/locks/MK-03.html)
- [Montgomery Point Lock and Dam (MK-99)](https://lockwait.com/locks/MK-99.html)
- [Murray Lock and Dam (MK-07)](https://lockwait.com/locks/MK-07.html)
- [Newt Graham Lock and Dam (MK-25)](https://lockwait.com/locks/MK-25.html)
- [Norrell Lock and Dam (MK-01)](https://lockwait.com/locks/MK-01.html)
- [Ozark Lock and Dam (MK-11)](https://lockwait.com/locks/MK-11.html)
- [Rbrt S Kerr Lk and Dam and Res (MK-22)](https://lockwait.com/locks/MK-22.html)
- [Toad Suck Ferry Lock and Dam (MK-08)](https://lockwait.com/locks/MK-08.html)
- [W D Mayo Lock and Dam (MK-21)](https://lockwait.com/locks/MK-21.html)
- [Webbers Falls Lock and Dam (MK-23)](https://lockwait.com/locks/MK-23.html)
- [Wilbur D Mills Lock and Dam (MK-02)](https://lockwait.com/locks/MK-02.html)
- [Chain of Rocks Lock and Dam 27 (MI-27)](https://lockwait.com/locks/MI-27.html)
- [Lock 19 (MI-19)](https://lockwait.com/locks/MI-19.html)
- [Lock and Dam 1 (MI-01)](https://lockwait.com/locks/MI-01.html)
- [Lock and Dam 10 (MI-10)](https://lockwait.com/locks/MI-10.html)
- [Lock and Dam 11 (MI-11)](https://lockwait.com/locks/MI-11.html)
- [Lock and Dam 12 (MI-12)](https://lockwait.com/locks/MI-12.html)
- [Lock and Dam 13 (MI-13)](https://lockwait.com/locks/MI-13.html)
- [Lock and Dam 14 (MI-14)](https://lockwait.com/locks/MI-14.html)
- [Lock and Dam 15 (MI-15)](https://lockwait.com/locks/MI-15.html)
- [Lock and Dam 16 (MI-16)](https://lockwait.com/locks/MI-16.html)
- [Lock and Dam 17 (MI-17)](https://lockwait.com/locks/MI-17.html)
- [Lock and Dam 18 (MI-18)](https://lockwait.com/locks/MI-18.html)
- [Lock and Dam 2 (MI-02)](https://lockwait.com/locks/MI-02.html)
- [Lock and Dam 20 (MI-20)](https://lockwait.com/locks/MI-20.html)
- [Lock and Dam 21 (MI-21)](https://lockwait.com/locks/MI-21.html)
- [Lock and Dam 22 (MI-22)](https://lockwait.com/locks/MI-22.html)
- [Lock and Dam 24 (MI-24)](https://lockwait.com/locks/MI-24.html)
- [Lock and Dam 25 (MI-25)](https://lockwait.com/locks/MI-25.html)
- [Lock and Dam 3 (MI-03)](https://lockwait.com/locks/MI-03.html)
- [Lock and Dam 4 (MI-04)](https://lockwait.com/locks/MI-04.html)
- [Lock and Dam 5 (MI-05)](https://lockwait.com/locks/MI-05.html)
- [Lock and Dam 5A (MI-55)](https://lockwait.com/locks/MI-55.html)
- [Lock and Dam 6 (MI-06)](https://lockwait.com/locks/MI-06.html)
- [Lock and Dam 7 (MI-07)](https://lockwait.com/locks/MI-07.html)
- [Lock and Dam 8 (MI-08)](https://lockwait.com/locks/MI-08.html)
- [Lock and Dam 9 (MI-09)](https://lockwait.com/locks/MI-09.html)
- [Mel Price Lock and Dam (MI-26)](https://lockwait.com/locks/MI-26.html)
- [St Anthony Falls - Lower Lock (MI-52)](https://lockwait.com/locks/MI-52.html)
- [St Anthony Falls - Upper Lock (MI-51)](https://lockwait.com/locks/MI-51.html)
- [Grays Landing Lock and Dam (MN-26)](https://lockwait.com/locks/MN-26.html)
- [Hildebrand Lock and Dam (MN-30)](https://lockwait.com/locks/MN-30.html)
- [Lock and Dam 2 (MN-22)](https://lockwait.com/locks/MN-22.html)
- [Lock and Dam 3 (MN-23)](https://lockwait.com/locks/MN-23.html)
- [Lock and Dam 4 (MN-24)](https://lockwait.com/locks/MN-24.html)
- [Maxwell Lock and Dam (MN-25)](https://lockwait.com/locks/MN-25.html)
- [Morgantown Lock and Dam (MN-29)](https://lockwait.com/locks/MN-29.html)
- [Opekiska Lock and Dam (MN-31)](https://lockwait.com/locks/MN-31.html)
- [Point Marion Lock and Dam (MN-28)](https://lockwait.com/locks/MN-28.html)
- [Belleville Locks and Dam (OH-21)](https://lockwait.com/locks/OH-21.html)
- [Cannelton Lock and Dam (OH-75)](https://lockwait.com/locks/OH-75.html)
- [Capt Ant Meldahl Locks and Dam (OH-25)](https://lockwait.com/locks/OH-25.html)
- [Dashields Lock and Dam (OH-02)](https://lockwait.com/locks/OH-02.html)
- [Emsworth Lock and Dam (OH-01)](https://lockwait.com/locks/OH-01.html)
- [Greenup Locks and Dam (OH-24)](https://lockwait.com/locks/OH-24.html)
- [Hannibal Locks and Dam (OH-71)](https://lockwait.com/locks/OH-71.html)
- [John T. Myers Lock & Dam (OH-77)](https://lockwait.com/locks/OH-77.html)
- [Lock and Dam 52 (OH-52)](https://lockwait.com/locks/OH-52.html)
- [Lock and Dam 53 (OH-53)](https://lockwait.com/locks/OH-53.html)
- [Markland Locks and Dam (OH-41)](https://lockwait.com/locks/OH-41.html)
- [McAlpine Locks and Dam (OH-42)](https://lockwait.com/locks/OH-42.html)
- [Montgomery Lock and Dam (OH-03)](https://lockwait.com/locks/OH-03.html)
- [New Cumberland Lock and Dam (OH-04)](https://lockwait.com/locks/OH-04.html)
- [Newburgh Lock and Dam (OH-76)](https://lockwait.com/locks/OH-76.html)
- [Olmsted Locks and Dam (OH-79)](https://lockwait.com/locks/OH-79.html)
- [Pike Island Lock and Dam (OH-05)](https://lockwait.com/locks/OH-05.html)
- [Racine Locks and Dam (OH-22)](https://lockwait.com/locks/OH-22.html)
- [Robert C. Byrd Locks and Dam (OH-26)](https://lockwait.com/locks/OH-26.html)
- [Smithland Lock and Dam (OH-78)](https://lockwait.com/locks/OH-78.html)
- [Willow Island Locks and Dam (OH-72)](https://lockwait.com/locks/OH-72.html)
- [Julian Keen, Jr. Lock (OK-02)](https://lockwait.com/locks/OK-02.html)
- [Ortona Lock and Dam (OK-03)](https://lockwait.com/locks/OK-03.html)
- [Port Mayaca Lock (OK-05)](https://lockwait.com/locks/OK-05.html)
- [St Lucie Lock and Dam (OK-01)](https://lockwait.com/locks/OK-01.html)
- [W P Frklin Lck and Ctrl Strct (OK-04)](https://lockwait.com/locks/OK-04.html)
- [Old River Lock (OD-51)](https://lockwait.com/locks/OD-51.html)
- [Columbia Lock and Dam (OB-02)](https://lockwait.com/locks/OB-02.html)
- [Felsenthal Lock and Dam (OB-03)](https://lockwait.com/locks/OB-03.html)
- [Jonesville Lock and Dam (OB-01)](https://lockwait.com/locks/OB-01.html)
- [Thatcher Lock and Dam (OB-04)](https://lockwait.com/locks/OB-04.html)
- [Joe D. Waggonner Jr Lock (RR-45)](https://lockwait.com/locks/RR-45.html)
- [John H. Overton (RR-42)](https://lockwait.com/locks/RR-42.html)
- [Lindy Claiborne Boggs Lock (RR-41)](https://lockwait.com/locks/RR-41.html)
- [Lock and Dam 3 (RR-43)](https://lockwait.com/locks/RR-43.html)
- [Russell B. Long (RR-44)](https://lockwait.com/locks/RR-44.html)
- [Ice Harbor Lock and Dam (SN-01)](https://lockwait.com/locks/SN-01.html)
- [Little Goose Lock and Dam (SN-03)](https://lockwait.com/locks/SN-03.html)
- [Lower Granite Lock and Dam (SN-04)](https://lockwait.com/locks/SN-04.html)
- [Lower Monumental Lock and Dam (SN-02)](https://lockwait.com/locks/SN-02.html)
- [St. Marys Lock (SM-01)](https://lockwait.com/locks/SM-01.html)
- [Chickamauga Lock (TN-07)](https://lockwait.com/locks/TN-07.html)
- [Fort Loudoun Lock (TN-09)](https://lockwait.com/locks/TN-09.html)
- [Gen Jos Wheeler Lock (TN-04)](https://lockwait.com/locks/TN-04.html)
- [Guntersville Lock (TN-05)](https://lockwait.com/locks/TN-05.html)
- [Kentucky Lock (TN-01)](https://lockwait.com/locks/TN-01.html)
- [Nickajack Lock (TN-06)](https://lockwait.com/locks/TN-06.html)
- [Pickwick Landing Lock (TN-02)](https://lockwait.com/locks/TN-02.html)
- [Watts Bar Lock (TN-08)](https://lockwait.com/locks/TN-08.html)
- [Wilson Lock (TN-03)](https://lockwait.com/locks/TN-03.html)
- [Aberdeen Lock and Dam (TT-44)](https://lockwait.com/locks/TT-44.html)
- [Fulton Lock (TT-47)](https://lockwait.com/locks/TT-47.html)
- [G.V. Sonny Montgomery Lock (TT-49)](https://lockwait.com/locks/TT-49.html)
- [Glover Wilkins Lock (TT-46)](https://lockwait.com/locks/TT-46.html)
- [Howell Heflin Lock and Dam (TT-41)](https://lockwait.com/locks/TT-41.html)
- [Jamie Whitten Lock and Dam (TT-50)](https://lockwait.com/locks/TT-50.html)
- [John C. Stennis Lock and Dam (TT-43)](https://lockwait.com/locks/TT-43.html)
- [John Rankin Lock (TT-48)](https://lockwait.com/locks/TT-48.html)
- [Thad Cochran Lock (TT-45)](https://lockwait.com/locks/TT-45.html)
- [Tom Bevill Lock and Dam (TT-42)](https://lockwait.com/locks/TT-42.html)
- [Alanson Lock (IN-61)](https://lockwait.com/locks/IN-61.html)
- [Willamette Falls Guard Lock (WI-15)](https://lockwait.com/locks/WI-15.html)
- [Willamette Falls Locks 1 - 4 (WI-11)](https://lockwait.com/locks/WI-11.html)