Know how long tows are waiting at your lock, before you get there
The Army Corps of Engineers publishes current queues and about thirty days of tow-by-tow records for 192 navigation locks. Lock Wait has archived status snapshots since October 4, 2026, so you can compare today's conditions with the history captured so far.
For towboat dispatchers and barge and grain shippers who need to know where tows are queuing.
Text me a daily report for my lock See the longest queues now
One text a day at the hour you choose. Reply STOP to cancel. Built from US Army Corps of Engineers data; status is checked every 15 minutes.
Recording since October 4, 2026. Site built . Corps status stale; last received . Current conditions may differ.
Longest queues right now
Where the waiting happens
Explore all 192 locks
Lock directory and recorded traffic
| Lock | Waterway | Lockages | Barges | Median commercial wait |
|---|---|---|---|---|
| Claiborne Lock and Dam (AL-11) | Alabama-Coosa Rivers | 1 | 0 | No commercial wait sample |
| Millers Ferry Lock and Dam (AL-12) | Alabama-Coosa Rivers | 11 | 0 | No commercial wait sample |
| Robert F. Henry Lock and Dam (AL-13) | Alabama-Coosa Rivers | 7 | 0 | No commercial wait sample |
| C.W. Bill Young Lock and Dam (AG-43) | Allegheny River | 198 | 50 | 0.00 h |
| Lock and Dam 2 (AG-42) | Allegheny River | 401 | 55 | 0.02 h |
| Lock and Dam 4 (AG-44) | Allegheny River | 77 | 18 | 0.00 h |
| Lock and Dam 5 (AG-45) | Allegheny River | 53 | 14 | 0.08 h |
| Lock and Dam 6 (AG-46) | Allegheny River | 12 | 0 | No commercial wait sample |
| Lock and Dam 7 (AG-47) | Allegheny River | 8 | 0 | No commercial wait sample |
| Lock and Dam 8 (AG-48) | Allegheny River | 18 | 0 | No commercial wait sample |
| Lock and Dam 9 (AG-49) | Allegheny River | 14 | 0 | No commercial wait sample |
| George W Andrews Lock and Dam (AP-22) | Aplchcla/Chattaho/Flint Rivers | 0 | 0 | No commercial wait sample |
| Jim Woodruff Lock and Dam (AP-21) | Aplchcla/Chattaho/Flint Rivers | 0 | 0 | No commercial wait sample |
| Walter F George Lock and Dam (AP-23) | Aplchcla/Chattaho/Flint Rivers | 0 | 0 | No commercial wait sample |
| Berwick Lock (AT-11) | Atchafalaya River | 573 | 8 | 0.02 h |
| Great Bridge Guard Lock (AI-11) | Atlantic Intracoastal Waterway | 672 | 122 | 0.07 h |
| Keystone Lock (BT-31) | Bayou Teche | 0 | 0 | No commercial wait sample |
| Black Rock Lock (BR-01) | Black Rock Ch/Tonawanda Harbor | 152 | 11 | 0.02 h |
| Armstd I. Selden Lock and Dam (BW-03) | Blackwarrior/Tombigbee Rivers | 181 | 835 | 0.00 h |
| Coffeeville Lock (BW-01) | Blackwarrior/Tombigbee Rivers | 346 | 1,499 | 0.33 h |
| Demopolis Lock and Dam (BW-02) | Blackwarrior/Tombigbee Rivers | 351 | 1,486 | 0.00 h |
| Holt Lock and Dam (BW-05) | Blackwarrior/Tombigbee Rivers | 145 | 733 | 0.00 h |
| John Hollis Bankhead Lock and Dam (BW-06) | Blackwarrior/Tombigbee Rivers | 104 | 409 | 0.00 h |
| William Bacon Oliver Lock and Dam (BW-04) | Blackwarrior/Tombigbee Rivers | 149 | 759 | 0.00 h |
| Calcasieu Salt Water Barrier (CA-23) | Calcasieu River | 653 | 28 | 0.02 h |
| Canaveral Lock (CN-21) | Canaveral Harbor | 905 | 11 | 0.13 h |
| Lock and Dam 1 (FR-01) | Cape Fear River | 0 | 0 | No commercial wait sample |
| Lock and Dam 2 (FR-02) | Cape Fear River | 0 | 0 | No commercial wait sample |
| William O Huske Lock and Dam (FR-03) | Cape Fear River | 0 | 0 | No commercial wait sample |
| Chicago Lock (CH-01) | Chicago River | 4,775 | 10 | 0.06 h |
| Melton Hill Lock (CI-11) | Clinch River | 0 | 0 | No commercial wait sample |
| Bonneville Lock and Dam (CO-01) | Columbia River | 427 | 708 | 0.08 h |
| John Day Lock and Dam (CO-03) | Columbia River | 323 | 677 | 0.19 h |
| McNary Lock and Dam (CO-24) | Columbia River | 315 | 553 | 0.08 h |
| The Dalles Dam (CO-02) | Columbia River | 321 | 676 | 0.58 h |
| Barkley Lock (CU-21) | Cumberland River | 291 | 1,833 | 1.30 h |
| Cheatham Lock (CU-22) | Cumberland River | 321 | 1,947 | 0.13 h |
| Cordell Hull Lock (CU-23) | Cumberland River | 6 | 0 | No commercial wait sample |
| Old Hickory Lock (CU-24) | Cumberland River | 242 | 590 | 0.00 h |
| Deep Creek Lock (DS-01) | Dismal Swamp Canal Route | 82 | 0 | No commercial wait sample |
| South Mills Lock (DS-02) | Dismal Swamp Canal Route | 80 | 0 | No commercial wait sample |
| Freshwater Bayou Lock (FB-41) | Freshwater Bayou | 1,151 | 712 | 0.13 h |
| Lock and Dam 1 (GB-21) | Green & Barren Rivers | 281 | 298 | 0.00 h |
| Lock and Dam 2 (GB-22) | Green & Barren Rivers | 64 | 185 | 0.00 h |
| Lock and Dam 3 (GB-23) | Green & Barren Rivers | 0 | 0 | No commercial wait sample |
| Algiers Lock (GI-04) | Gulf Intracoastal Waterway | 2,067 | 3,712 | 3.03 h |
| Bayou Boeuf Lock (GI-06) | Gulf Intracoastal Waterway | 2,717 | 3,704 | 0.20 h |
| Bayou Sorrel Lock (GI-02) | Gulf Intracoastal Waterway | 1,113 | 3,661 | 0.53 h |
| Brazos East Gate (GI-13) | Gulf Intracoastal Waterway | 1,414 | 1,708 | 4.53 h |
| Brazos West Gate (GI-14) | Gulf Intracoastal Waterway | 1,428 | 1,757 | 4.75 h |
| Calcasieu Lock (GI-08) | Gulf Intracoastal Waterway | 2,598 | 6,575 | 4.32 h |
| Catfish Point Control Struct (GI-22) | Gulf Intracoastal Waterway | 179 | 2 | 0.02 h |
| Colorado River East Lock (GI-11) | Gulf Intracoastal Waterway | 1,286 | 1,673 | 1.95 h |
| Colorado River West Lock (GI-12) | Gulf Intracoastal Waterway | 1,037 | 1,410 | 2.83 h |
| Harvey Lock (GI-05) | Gulf Intracoastal Waterway | 129 | 77 | 0.30 h |
| Inner Hrbr Navigation Canl Lk (GI-03) | Gulf Intracoastal Waterway | 1,101 | 1,975 | 4.10 h |
| Leland Bowman Lock (GI-77) | Gulf Intracoastal Waterway | 2,619 | 6,565 | 4.03 h |
| Port Allen Lock (GI-01) | Gulf Intracoastal Waterway | 1,257 | 3,908 | 4.32 h |
| Schooner Bayou Control Struct (GI-21) | Gulf Intracoastal Waterway | 239 | 2 | 0.02 h |
| Troy Lock and Dam (HU-01) | Hudson River | 343 | 5 | 0.00 h |
| Brandon Road Lock and Dam (IL-03) | Illinois Waterway | 759 | 1,879 | 0.37 h |
| Dresden Island Lock and Dam (IL-04) | Illinois Waterway | 474 | 2,374 | 0.08 h |
| Lagrange Lock and Dam (IL-08) | Illinois Waterway | 376 | 3,177 | 0.35 h |
| Lockport Lock (IL-02) | Illinois Waterway | 617 | 1,814 | 0.12 h |
| Marseilles Lock and Dam (IL-05) | Illinois Waterway | 397 | 2,457 | 1.77 h |
| Peoria Lock and Dam (IL-07) | Illinois Waterway | 365 | 2,704 | 0.00 h |
| Starved Rock Lock and Dam (IL-06) | Illinois Waterway | 402 | 2,463 | 1.22 h |
| Thomas J. O'Brien Lock (IL-01) | Illinois Waterway | 1,077 | 860 | 0.00 h |
| London Locks and Dam Main 1 (KA-03) | Kanawha River | 43 | 44 | 0.02 h |
| Marmet Locks and Dam Main 1 (KA-02) | Kanawha River | 218 | 906 | 0.00 h |
| Winfield Locks and Dam Main 1 (KA-01) | Kanawha River | 283 | 1,772 | 0.00 h |
| Jerry F. Costello Lock and Dam (KS-01) | Kaskaskia River | 305 | 498 | 0.00 h |
| Hiram M Chittenden Locks (WS-01) | Lake Washington Ship Canal | 2,106 | 139 | 0.32 h |
| Arthur V Ormond L and D (MK-09) | Mc-Kerr Arkansas Riv Nav Sys | 135 | 609 | 0.00 h |
| Chouteau Lock and Dam (MK-24) | Mc-Kerr Arkansas Riv Nav Sys | 104 | 343 | 0.00 h |
| Col Charles D Maynard (MK-05) | Mc-Kerr Arkansas Riv Nav Sys | 137 | 751 | 0.00 h |
| Dardanelle Lk and Dam (MK-10) | Mc-Kerr Arkansas Riv Nav Sys | 121 | 506 | 0.00 h |
| David D Terry Lock and Dam (MK-06) | Mc-Kerr Arkansas Riv Nav Sys | 188 | 764 | 0.00 h |
| Emmett Sanders Lock and Dam (MK-04) | Mc-Kerr Arkansas Riv Nav Sys | 108 | 732 | 0.00 h |
| James W. Trimble Lock and Dam (MK-13) | Mc-Kerr Arkansas Riv Nav Sys | 164 | 459 | 0.00 h |
| Joe Hardin Lock and Dam (MK-03) | Mc-Kerr Arkansas Riv Nav Sys | 137 | 743 | 0.00 h |
| Montgomery Point Lock and Dam (MK-99) | Mc-Kerr Arkansas Riv Nav Sys | 167 | 794 | 0.00 h |
| Murray Lock and Dam (MK-07) | Mc-Kerr Arkansas Riv Nav Sys | 148 | 523 | 0.00 h |
| Newt Graham Lock and Dam (MK-25) | Mc-Kerr Arkansas Riv Nav Sys | 110 | 343 | 0.00 h |
| Norrell Lock and Dam (MK-01) | Mc-Kerr Arkansas Riv Nav Sys | 127 | 849 | 0.00 h |
| Ozark Lock and Dam (MK-11) | Mc-Kerr Arkansas Riv Nav Sys | 126 | 485 | 0.00 h |
| Rbrt S Kerr Lk and Dam and Res (MK-22) | Mc-Kerr Arkansas Riv Nav Sys | 123 | 385 | 0.00 h |
| Toad Suck Ferry Lock and Dam (MK-08) | Mc-Kerr Arkansas Riv Nav Sys | 124 | 520 | 0.17 h |
| W D Mayo Lock and Dam (MK-21) | Mc-Kerr Arkansas Riv Nav Sys | 105 | 392 | 0.00 h |
| Webbers Falls Lock and Dam (MK-23) | Mc-Kerr Arkansas Riv Nav Sys | 106 | 394 | 0.00 h |
| Wilbur D Mills Lock and Dam (MK-02) | Mc-Kerr Arkansas Riv Nav Sys | 139 | 837 | 0.00 h |
| Chain of Rocks Lock and Dam 27 (MI-27) | Mississippi River | 1,131 | 7,629 | 1.73 h |
| Lock 19 (MI-19) | Mississippi River | 427 | 2,967 | 0.58 h |
| Lock and Dam 1 (MI-01) | Mississippi River | 176 | 7 | 0.08 h |
| Lock and Dam 10 (MI-10) | Mississippi River | 439 | 2,113 | 0.60 h |
| Lock and Dam 11 (MI-11) | Mississippi River | 407 | 2,109 | 0.50 h |
| Lock and Dam 12 (MI-12) | Mississippi River | 436 | 2,234 | 0.00 h |
| Lock and Dam 13 (MI-13) | Mississippi River | 423 | 2,244 | 0.33 h |
| Lock and Dam 14 (MI-14) | Mississippi River | 610 | 2,839 | 0.67 h |
| Lock and Dam 15 (MI-15) | Mississippi River | 380 | 2,560 | 0.76 h |
| Lock and Dam 16 (MI-16) | Mississippi River | 473 | 2,643 | 0.30 h |
| Lock and Dam 17 (MI-17) | Mississippi River | 380 | 2,694 | 0.02 h |
| Lock and Dam 18 (MI-18) | Mississippi River | 399 | 2,846 | 0.38 h |
| Lock and Dam 2 (MI-02) | Mississippi River | 430 | 1,395 | 0.24 h |
| Lock and Dam 20 (MI-20) | Mississippi River | 448 | 3,119 | 0.50 h |
| Lock and Dam 21 (MI-21) | Mississippi River | 493 | 3,588 | 0.63 h |
| Lock and Dam 22 (MI-22) | Mississippi River | 407 | 3,636 | 0.93 h |
| Lock and Dam 24 (MI-24) | Mississippi River | 403 | 3,706 | 1.18 h |
| Lock and Dam 25 (MI-25) | Mississippi River | 403 | 3,728 | 3.54 h |
| Lock and Dam 3 (MI-03) | Mississippi River | 683 | 1,395 | 0.17 h |
| Lock and Dam 4 (MI-04) | Mississippi River | 572 | 1,520 | 0.00 h |
| Lock and Dam 5 (MI-05) | Mississippi River | 518 | 1,492 | 0.20 h |
| Lock and Dam 5A (MI-55) | Mississippi River | 458 | 1,496 | 0.23 h |
| Lock and Dam 6 (MI-06) | Mississippi River | 470 | 1,735 | 0.17 h |
| Lock and Dam 7 (MI-07) | Mississippi River | 522 | 1,729 | 0.28 h |
| Lock and Dam 8 (MI-08) | Mississippi River | 406 | 1,926 | 0.48 h |
| Lock and Dam 9 (MI-09) | Mississippi River | 438 | 1,931 | 0.20 h |
| Mel Price Lock and Dam (MI-26) | Mississippi River | 801 | 6,520 | 1.07 h |
| St Anthony Falls - Lower Lock (MI-52) | Mississippi River | 127 | 9 | 0.15 h |
| St Anthony Falls - Upper Lock (MI-51) | Mississippi River | 0 | 0 | No commercial wait sample |
| Grays Landing Lock and Dam (MN-26) | Monongahela River | 297 | 1,277 | 0.00 h |
| Hildebrand Lock and Dam (MN-30) | Monongahela River | 2 | 0 | No commercial wait sample |
| Lock and Dam 2 (MN-22) | Monongahela River | 500 | 2,296 | 0.02 h |
| Lock and Dam 3 (MN-23) | Monongahela River | 0 | 0 | No commercial wait sample |
| Lock and Dam 4 (MN-24) | Monongahela River | 385 | 1,545 | 0.00 h |
| Maxwell Lock and Dam (MN-25) | Monongahela River | 371 | 1,395 | 0.00 h |
| Morgantown Lock and Dam (MN-29) | Monongahela River | 25 | 0 | No commercial wait sample |
| Opekiska Lock and Dam (MN-31) | Monongahela River | 0 | 0 | No commercial wait sample |
| Point Marion Lock and Dam (MN-28) | Monongahela River | 288 | 1,300 | 0.00 h |
| Belleville Locks and Dam (OH-21) | Ohio River | 692 | 6,687 | 0.44 h |
| Cannelton Lock and Dam (OH-75) | Ohio River | 755 | 7,329 | 0.30 h |
| Capt Ant Meldahl Locks and Dam (OH-25) | Ohio River | 581 | 5,256 | 3.76 h |
| Dashields Lock and Dam (OH-02) | Ohio River | 560 | 2,466 | 0.02 h |
| Emsworth Lock and Dam (OH-01) | Ohio River | 667 | 2,321 | 0.00 h |
| Greenup Locks and Dam (OH-24) | Ohio River | 615 | 5,341 | 0.15 h |
| Hannibal Locks and Dam (OH-71) | Ohio River | 748 | 6,183 | 1.32 h |
| John T. Myers Lock & Dam (OH-77) | Ohio River | 947 | 8,311 | 0.62 h |
| Lock and Dam 52 (OH-52) | Ohio River | 0 | 0 | No commercial wait sample |
| Lock and Dam 53 (OH-53) | Ohio River | 0 | 0 | No commercial wait sample |
| Markland Locks and Dam (OH-41) | Ohio River | 748 | 6,052 | 0.33 h |
| McAlpine Locks and Dam (OH-42) | Ohio River | 793 | 7,995 | 0.02 h |
| Montgomery Lock and Dam (OH-03) | Ohio River | 544 | 2,664 | 0.03 h |
| New Cumberland Lock and Dam (OH-04) | Ohio River | 549 | 3,329 | 0.02 h |
| Newburgh Lock and Dam (OH-76) | Ohio River | 943 | 8,951 | 0.63 h |
| Olmsted Locks and Dam (OH-79) | Ohio River | 1,279 | 10,970 | 7.42 h |
| Pike Island Lock and Dam (OH-05) | Ohio River | 742 | 4,930 | 0.02 h |
| Racine Locks and Dam (OH-22) | Ohio River | 653 | 6,443 | 0.40 h |
| Robert C. Byrd Locks and Dam (OH-26) | Ohio River | 583 | 4,641 | 0.20 h |
| Smithland Lock and Dam (OH-78) | Ohio River | 957 | 9,455 | 1.92 h |
| Willow Island Locks and Dam (OH-72) | Ohio River | 781 | 6,402 | 0.15 h |
| Julian Keen, Jr. Lock (OK-02) | Okeechobee Waterway | 184 | 0 | No commercial wait sample |
| Ortona Lock and Dam (OK-03) | Okeechobee Waterway | 306 | 3 | 0.00 h |
| Port Mayaca Lock (OK-05) | Okeechobee Waterway | 199 | 3 | 0.06 h |
| St Lucie Lock and Dam (OK-01) | Okeechobee Waterway | 307 | 11 | 0.08 h |
| W P Frklin Lck and Ctrl Strct (OK-04) | Okeechobee Waterway | 406 | 8 | 0.00 h |
| Old River Lock (OD-51) | Old River | 558 | 1,445 | 0.18 h |
| Columbia Lock and Dam (OB-02) | Ouachita and Black Rivers | 47 | 104 | 0.02 h |
| Felsenthal Lock and Dam (OB-03) | Ouachita and Black Rivers | 21 | 0 | No commercial wait sample |
| Jonesville Lock and Dam (OB-01) | Ouachita and Black Rivers | 98 | 131 | 0.00 h |
| Thatcher Lock and Dam (OB-04) | Ouachita and Black Rivers | 1 | 0 | No commercial wait sample |
| Joe D. Waggonner Jr Lock (RR-45) | Red River | 147 | 123 | 0.00 h |
| John H. Overton (RR-42) | Red River | 177 | 611 | 0.00 h |
| Lindy Claiborne Boggs Lock (RR-41) | Red River | 283 | 637 | 0.00 h |
| Lock and Dam 3 (RR-43) | Red River | 77 | 124 | 0.00 h |
| Russell B. Long (RR-44) | Red River | 75 | 123 | 0.00 h |
| Ice Harbor Lock and Dam (SN-01) | Snake River | 213 | 301 | 0.08 h |
| Little Goose Lock and Dam (SN-03) | Snake River | 169 | 253 | 0.08 h |
| Lower Granite Lock and Dam (SN-04) | Snake River | 144 | 157 | 0.00 h |
| Lower Monumental Lock and Dam (SN-02) | Snake River | 168 | 271 | 0.08 h |
| St. Marys Lock (SM-01) | St. Marys River | 1,142 | 597 | 0.00 h |
| Chickamauga Lock (TN-07) | Tennessee River | 392 | 56 | 0.12 h |
| Fort Loudoun Lock (TN-09) | Tennessee River | 191 | 30 | 0.04 h |
| Gen Jos Wheeler Lock (TN-04) | Tennessee River | 330 | 1,340 | 0.48 h |
| Guntersville Lock (TN-05) | Tennessee River | 163 | 570 | 0.17 h |
| Kentucky Lock (TN-01) | Tennessee River | 470 | 3,621 | 37.88 h |
| Nickajack Lock (TN-06) | Tennessee River | 121 | 235 | 0.22 h |
| Pickwick Landing Lock (TN-02) | Tennessee River | 323 | 1,482 | 0.00 h |
| Watts Bar Lock (TN-08) | Tennessee River | 212 | 33 | 0.07 h |
| Wilson Lock (TN-03) | Tennessee River | 308 | 1,331 | 0.33 h |
| Aberdeen Lock and Dam (TT-44) | Tennessee Tombigbee Waterway | 221 | 460 | 0.00 h |
| Fulton Lock (TT-47) | Tennessee Tombigbee Waterway | 196 | 435 | 0.00 h |
| G.V. Sonny Montgomery Lock (TT-49) | Tennessee Tombigbee Waterway | 199 | 427 | 0.00 h |
| Glover Wilkins Lock (TT-46) | Tennessee Tombigbee Waterway | 187 | 441 | 0.00 h |
| Howell Heflin Lock and Dam (TT-41) | Tennessee Tombigbee Waterway | 249 | 567 | 0.25 h |
| Jamie Whitten Lock and Dam (TT-50) | Tennessee Tombigbee Waterway | 227 | 519 | 0.00 h |
| John C. Stennis Lock and Dam (TT-43) | Tennessee Tombigbee Waterway | 272 | 534 | 0.00 h |
| John Rankin Lock (TT-48) | Tennessee Tombigbee Waterway | 195 | 438 | 0.00 h |
| Thad Cochran Lock (TT-45) | Tennessee Tombigbee Waterway | 181 | 443 | 0.00 h |
| Tom Bevill Lock and Dam (TT-42) | Tennessee Tombigbee Waterway | 252 | 564 | 0.00 h |
| Alanson Lock (IN-61) | The Inland Route | 0 | 0 | No commercial wait sample |
| Willamette Falls Guard Lock (WI-15) | Willamette River | 0 | 0 | No commercial wait sample |
| Willamette Falls Locks 1 - 4 (WI-11) | Willamette River | 0 | 0 | No commercial wait sample |
Archive contains 192 lock records; 175 have recorded traffic. Data built 2026-11-04T23:17:12Z. Coverage varies by lock.