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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 The site also has Policy Notices that remain in place until superseded.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 Nbr
Amendment Nbr
Title
Begin Date
End Date
Waterways
District Name
Attachments
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
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
210286SCHEDULED LOCK CLOSURE Jerry F. Costello Lock and Dam Kaskaskia River Mile 0.8 2025/08/012025/10/01ST. LOUIS 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
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
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
211093UNDERWATER EXCAVATION AND PIPELINE REPAIR TENNESSEE RIVER MILE 246.4 LDB 2025/07/212025/08/29NASHVILLE DISTRICTNav Notice 25-18.pdf
211249REPORTED SHOALING SAGINAW RIVER, MI2025/07/212026/01/01DETROIT DISTRICTSH_01_SAG_20250714_CS(SHEET62).pdf
211287Controlled Demolition at Montgomery Lock and Dam, Ohio River2025/07/212026/01/01PITTSBURGH DISTRICT
211329SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK2025/07/212025/07/21WALLA WALLA DISTRICT
211374GUIDEWALL REPAIRS Gulf Intracoastal Waterway (Morgan City-Port Allen Alternate Route) Bayou Sorrel Lock2025/07/212025/09/11NEW ORLEANS DISTRICT
211387UPPER MISSISSIPPI MECHANICAL DREDGING (STRIKE REMOVAL) Barkis and Bass Island, UMR Pool 17, RM 446.1 - 447.8 2025/07/21UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
211388MOBILE HARBOR, AL CHANNEL OBSTRUCTION – MOBILE RIVER2025/07/212025/08/05MOBILE DISTRICT
211391211329-1AMENDMENT TO NAVIGATION NOTICE 211329, 25-25: SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK2025/07/212025/07/21WALLA WALLA DISTRICT
211392INCREASED LOCKAGE TIME AT MCNARY NAVIGATION LOCK2025/07/212025/07/25WALLA WALLA DISTRICT
211372OHIO RIVER LOUISVILLE DISTRICT CHANNEL MAINTENANCE DREDGING RALIEGH BAR OHIO RIVER MILE 855.02025/07/202025/07/27LOUISVILLE DISTRICT
211408211372-1OHIO RIVER LOUISVILLE DISTRICT CHANNEL MAINTENANCE DREDGING RALIEGH BAR OHIO RIVER MILE 855.02025/07/202025/07/20LOUISVILLE DISTRICT
211207REPLACEMENT OF FIBER LINE ON TVA TRANSMISSION LINE CUMBERLAND RIVER MILE 30.22025/07/162025/07/16NASHVILLE DISTRICTNav Notice 25-22.pdf
211349TOW HAULAGE RETURN TO SERVICE NORRELL LOCK (No. 1) NM 10.3 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/07/162025/07/17LITTLE ROCK DISTRICT
211164SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK2025/07/152025/07/15WALLA WALLA DISTRICT
211247SCHEDULED LOCK OUTAGE AT LOWER MONUMENTAL NAVIGATION LOCK2025/07/152025/07/16WALLA WALLA DISTRICT
211252211247-1SCHEDULED LOCK OUTAGE AT LOWER MONUMENTAL NAVIGATION LOCK2025/07/152025/07/16WALLA WALLA DISTRICT
211309DREDGEING OPERATIONS MISSISSIPPI RIVER DEEP DRAFT CROSSINGS 2025/07/15UNTIL FURTHER NOTICENEW ORLEANS DISTRICT
211351ELECTRONIC AIDS TO NAVIGATION TEST July 15, 2025 (8 a.m. – 8 p.m.)2025/07/152025/07/16MOBILE DISTRICT
211188MARKLAND LOCKS AND DAM AUXILIARY CHAMBER CLOSURE OHIO RIVER MILE 531.5 2025/07/142025/09/19LOUISVILLE DISTRICT
211290REPAIRS GULF INTRACOASTAL WATERWAY BAYOU BOEUF LOCK 2025/07/142025/08/16NEW ORLEANS DISTRICT
211308DREDGEING OPERATIONS MISSISSIPPI RIVER AND SOUTHWEST PASS2025/07/142025/07/31NEW ORLEANS DISTRICT
211127River mile 849.5 Stonework RDB near Caruthersville Harbor2025/07/112025/07/18MEMPHIS DISTRICT
211167Jerry F. Costello Lock and Dam Kaskaskia River Mile 0.82025/07/112025/07/13ST. LOUIS DISTRICT
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