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Welcome to Notices To Navigation Interest

The Notices To Navigation Interests (NTNI Notices) website contains navigation notices and policies issued by US Army Corps of Engineers Districts with a waterway navigation mission. These documents are disseminated according to EP 1130-2-520, Chapter 2, to inform mariners of information describing events that affect waterway navigation such as maintenance projects, hazards to navigation, and other pertinent information. The notices are removed from the page seven days past the end date on the latest amendment. The site also has Policy Notices that remain in place until superseded. This site does not contain all notices such as those published by other Federal agencies. Reference: The US Coast Guard Local Notice To Mariners site at: http://www.navcen.uscg.gov/?pageName=lnmMain
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Navigation Notices

Control NbrAmendment NbrTitleBegin DateEnd DateWaterwaysDistrict NameAttachments
20545014006-1LOCK RESTRICTION Lock and Dam 9, UMR Mile 647.9 IMMEDIATELYUNTIL FURTHER NOTICEST. PAUL DISTRICT
210107DREDGING OPERATIONS Mississippi River - Vicinity of Southwest Pass, Pass A Loutre, and South Pass IMMEDIATELYUNTIL FURTHER NOTICENEW ORLEANS DISTRICT
210190210107-1AMENDMENT - Navigation Notice 210107, MVN 25-28 DREDGING OPERATIONS Mississippi River - Vicinity of Southwest Pass, Pass A Loutre, and South Pass IMMEDIATELY2025/03/20NEW ORLEANS DISTRICT
211009Auxiliary Lock Annual Maintenance Period2026/03/022026/03/13SEATTLE DISTRICT
211008Large Lock Maintenance Period2025/11/102025/11/26SEATTLE DISTRICT
211367TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI Jamie L. Whitten Lock, Mile 411.92025/09/032025/10/04MOBILE DISTRICT
211369211367-1TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI Jamie L. Whitten Lock, Mile 411.92025/09/032025/10/04MOBILE DISTRICT
210145NOTICE OF SCHEDULED LOCK CLOSURE WEBBERS FALLS L&D No. 16, NM 366.62025/08/252025/09/14TULSA DISTRICT
210866NOTICE OF CANCELED LOCK CLOSURE WEBBERS FALLS L&D 16, NM 366.62025/08/252025/09/14TULSA DISTRICT
210768LOCK CLOSURES Lock and Dam 6, UMR 714.32025/08/192025/08/29ST. PAUL DISTRICT
210893Lock Closure T.J. O’Brien Lock & Dam, River Mile 326.52025/08/192025/08/19CHICAGO DISTRICT
211429PATRICK STREET BRIDGE INSPECTION KANAWHA RIVER, MILE 56.32025/08/112025/08/15HUNTINGTON DISTRICT
211370Bonneville Navigation Lock Temporary Closure2025/08/082025/08/08PORTLAND DISTRICT
211332211093-1UNDERWATER EXCAVATION AND PIPELINE REPAIR TENNESSEE RIVER MILE 246.4 LDB 2025/08/072025/10/01NASHVILLE DISTRICTNav Notice 25-18_1.pdf
Nav Notice 25-18.pdf
210105GREEN RIVER LOCK & DAM 1 REVISED – MITER GATE REHABILITATION GREEN RIVER MILE 9.1 2025/08/042025/09/28LOUISVILLE DISTRICT
211527LITTLE GOOSE NAVIGATION LOCK SCHEDULED OUTAGE2025/08/042025/08/04WALLA WALLA DISTRICT
210286SCHEDULED LOCK CLOSURE Jerry F. Costello Lock and Dam Kaskaskia River Mile 0.8 2025/08/012025/10/01ST. LOUIS DISTRICT
211470MULZER – CHARLESTOWN QUARRY MAINTENANCE DREDGING OHIO RIVER MILE 586.22025/08/012025/08/04LOUISVILLE DISTRICT
211471211470-1MULZER – CHARLESTOWN QUARRY MAINTENANCE DREDGING OHIO RIVER MILE 586.22025/08/012025/08/04LOUISVILLE DISTRICT
211510DREDGING OPERATIONS Gulf Intracoastal Waterway (Morgan City - Port Allen Alternate Route) Port Allen Lock2025/08/012025/08/12NEW ORLEANS DISTRICT
211508AUXILIARY FLUSHING OPERATION OLD RIVER CONTROL STRUCTURES AND ATCHAFALAYA RIVER 2025/07/31UNTIL FURTHER NOTICENEW ORLEANS DISTRICT
210606Calumet Harbor Breakwater Repair2025/07/302025/09/12CHICAGO DISTRICT
210894210606-1Calumet Harbor Breakwater Repair2025/07/302025/09/12CHICAGO DISTRICT
211409SUBAQUEOUS STONE PLACEMENT Mississippi River - Mile 80.6 AHP LDB2025/07/292025/08/15NEW ORLEANS DISTRICT
211507UPPER MISSISSIPPI Mechanical Dredging(Strike Removal) Steamboat Slough, UMR-Pool 14, RM 503.3-503.72025/07/29UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
211512SAILING INSTRUCTIONS: R.S. KERR POOL No. 15 NM 348.3 to 348.82025/07/292025/10/01TULSA DISTRICT20250630_Sand Town Bottom.pdf
20250630_Sand Town Bottom.pdf
211513211512-1SAILING INSTRUCTIONS: R.S. KERR POOL No. 15 NM 348.3 to 348.82025/07/292025/10/01TULSA DISTRICT20250630_Sand Town Bottom.pdf
20250630_Sand Town Bottom.pdf
211467GUIDEWALL REMOVAL OPERATIONS Schooner Bayou Control Structure2025/07/282025/08/01NEW ORLEANS DISTRICT
211472OHIO RIVER LOUISVILLE DISTRICT CHANNEL MAINTENANCE DREDGING MCALPINE LOWER APPROACH OHIO RIVER MILE 607.52025/07/282025/08/07LOUISVILLE DISTRICT
211487SHOALING WEBBERS FALLS POOL No. 16 NM 373.5 to 373.9 LEFT DECENDING CHANNEL 2025/07/282025/10/01TULSA DISTRICT20250726_Spaniard Creek_Elev487 (002).pdf
211488211487-1SHOALING WEBBERS FALLS POOL No. 16 NM 373.5 to 373.9 LEFT DECENDING CHANNEL 2025/07/282025/10/01TULSA DISTRICT20250726_Spaniard Creek_Elev487 (002).pdf
211473 SCHOALING NM 421.3 TO 421.4 LOCK 18 LOWER APPROACH USE EXTREAM CAUTION WHILE TRANSITTING THIS AREA2025/07/262025/08/31TULSA DISTRICT20250724_Lock18 DS Approach with ref lines.pdf
211469LOCKING INSTRUCTIONS DARDANELLE LOCK (No. 10) NM 205.5 JAMES W. TRIMBLE LOCK (No. 13) NM 292.8 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/07/25UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
211490MOBILE HARBOR, AL DRAFT RESTRICTION – THEODORE SHIP CHANNEL2025/07/25UNTIL FURTHER NOTICEMOBILE DISTRICT
211431USE CAUTION WHILE TRANSITING NM 392.5 DUE TO OF CONSTRUCTION ACTIVITIES ON HWY 62 BRIDGE2025/07/242025/08/06TULSA DISTRICT
211393MISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 11, River Mile 583.0 2025/07/232025/07/23ROCK ISLAND DISTRICT
211410211407-1OHIO RIVER LOUISVILLE DISTRICT CHANNEL MAINTENANCE DREDGING PORTLAND CANAL AND SURGE BASIN OHIO RIVER MILE 605 2025/07/232025/07/30LOUISVILLE DISTRICT
211433REGULATING WORKS MAINTENACE River Mile 39.6 Upper Mississippi River 2025/07/232025/07/30ST. LOUIS DISTRICT
211434211433-1REGULATING WORKS MAINTENANCE River Mile 39.6 - 8.7 Upper Mississippi River 2025/07/232025/08/01ST. LOUIS DISTRICT
211435MKARNS LOCKS CREW CHANGES AND DELIVERY OF SUPPLIES MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/07/232025/07/25LITTLE ROCK DISTRICT
210767LOCK CLOSURE Lock and Dam 7, UMR Mile 702.52025/07/222025/08/01ST. PAUL DISTRICT
211187OPERATIONAL STATUS – POE AND MACARTHUR LOCKS ST. MARYS FALLS CANAL2025/07/222025/07/23DETROIT DISTRICT
211375CHANNEL MAINTENANCE DREDGING USACE DREDGE GOETZ Upper Mississippi River mile 274.52025/07/22UNTIL FURTHER NOTICEST. LOUIS DISTRICT
211376CHANNEL MAINTENANCE DREDGING USACE Dredge Potter Upper Mississippi River Mile 171.52025/07/22UNTIL FURTHER NOTICEST. LOUIS DISTRICT
211389211376-1CHANNEL MAINTENANCE DREDGING 21 July 2025 Update USACE Dredge Potter Upper Mississippi River Mile 171.52025/07/22UNTIL FURTHER NOTICEST. LOUIS DISTRICT
211394211376-2CHANNEL MAINTENANCE DREDGING 21 July 2025 Update USACE Dredge Potter Upper Mississippi River Mile 196, and 2072025/07/22UNTIL FURTHER NOTICEST. LOUIS DISTRICT
211407OHIO RIVER LOUISVILLE DISTRICT CHANNEL MAINTENANCE DREDGING PORTLAND CANAL AND SURGE BASIN OHIO RIVER MILE 605 2025/07/222025/07/28LOUISVILLE DISTRICT
211427211376-3CHANNEL MAINTENANCE DREDGING 23 July 2025 Update USACE Dredge Potter Upper Mississippi River Mile 196, and 2072025/07/22UNTIL FURTHER NOTICEST. LOUIS DISTRICT
211489211376-4CHANNEL MAINTENANCE DREDGING 28 July 2025 Update USACE Dredge Potter Upper Mississippi River Mile 2072025/07/22UNTIL FURTHER NOTICEST. LOUIS DISTRICT
211093UNDERWATER EXCAVATION AND PIPELINE REPAIR TENNESSEE RIVER MILE 246.4 LDB 2025/07/212025/08/29NASHVILLE DISTRICTNav Notice 25-18.pdf
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