Navigation Notices - Home

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 The site also has Policy Notices that remain in place until superseded.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
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
211568Lock Closure Lockport Lock River Mile 2912026/03/312026/05/20CHICAGO DISTRICT
211845211831-12026 Portland Annual Navigation Lock Maintenance Outage2026/03/012026/03/22PORTLAND DISTRICT
212199211009-2Auxiliary Lock Annual Maintenance Period2026/03/012026/03/12SEATTLE DISTRICT
2120092026 WALLA WALLA DISTRICT NAVIGATION LOCK MAINTENANCE OUTAGE2026/02/212026/03/29WALLA WALLA DISTRICT
212559OPERATIONAL STATUS – POE AND MACARTHUR LOCKS ST. MARYS FALLS CANAL 2026/01/162026/03/25DETROIT DISTRICT
212568BLACK WARRIOR TOMBIGBEE WATERWAY, ALABAMA MODIFIED OPERATING HOURS AT HOLT LOCK & DAM RIVER MILE 3472026/01/122026/10/01MOBILE DISTRICT
212546OPERATIONAL STATUS – POE AND MACARTHUR LOCKS ST. MARYS FALLS CANAL 2026/01/062026/01/07DETROIT DISTRICT
211995MISSISSIPPI RIVER LOCK CLOSURE Lock and Dam 19, River Mile 364.22025/12/152026/03/14ROCK ISLAND DISTRICT
211996UPPER MISSISSIPPI WINTER LOCKAGE HOURS Lock & Dam No. 11, UMR 583.0 THROUGH Lock & Dam No. 22, UMR 301.22025/12/152026/03/14ROCK ISLAND DISTRICT
212525Houston Ship Channel, Texas Morgans Point to Boggy Bayou, In Harris and Chambers Counties, Texas Maintenance Dredging 2025/12/152026/05/17GALVESTON DISTRICT
212580BLACK WARRIOR TOMBIGBEE WATERWAY, ALABAMA Christmas Parade at River Mile 342 to River Mile 3382025/12/132025/12/14MOBILE DISTRICT
212619BLACK WARRIOR TOMBIGBEE WATERWAY, ALABAMA Christmas Parade at River Mile 342 to River Mile 338 is CANCELLED2025/12/132025/12/14MOBILE DISTRICT
212611PANAMA CITY HARBOR – ENTRANCE CHANNEL DREDGING OPERATIONS2025/12/112025/12/27MOBILE DISTRICT
212566Braddock Locks and Dam, Monongahela River Mile Marker 11.3. Closure of Both Chambers2025/12/102025/12/11PITTSBURGH DISTRICT
212624NICKAJACK LOCK TOW HAULAGE REPAIR TENNESSEE RIVER MILE 424.7 2025/12/092026/01/24NASHVILLE DISTRICTNav Notice 25-40 .pdf
212200Lock Closures Upper Mississippi River2025/12/082026/03/16ST. PAUL DISTRICT
212615212582-1AMENDMENT TO NAVIGATION NOTICE 212582, 26-6: SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK 2025/12/082025/12/09WALLA WALLA DISTRICT
212560LOCK CLOSURE Brandon Road Lock and Dam, RM 286.02025/12/052025/12/05ROCK ISLAND DISTRICT
212620NOTICE OF LOCK CLOSURE MONTGOMERY POINT LOCK AND DAM (NM 0.5) MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/12/05UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
212622212621-1NAVIGATION PASS CLOSURE MONTGOMERY POINT LOCK AND DAM (NM 0.5) MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/12/052025/12/06LITTLE ROCK DISTRICT
212623SAILING INSTRUCTIONS LIFTED DOWNSTREAM APPROACH AT NORRELL LOCK AND DAM (NM 10.3) MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/12/052025/12/06LITTLE ROCK DISTRICT
212522212519-1SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK2025/12/032025/12/04WALLA WALLA DISTRICT
212604BLACK WARRIOR TOMBIGBEE WATERWAY, ALABAMA HOLT LOCK AND DAM (RIVER MILE 347) TEMPORARY CLOSURE2025/12/032025/12/03MOBILE DISTRICT
212605Illinois Waterway Mechanical Dredging (Strike Removal) LaGrange Pool, CF/Kingston Terminal, RM 146.8-147.42025/12/03UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
212608MOBILE RIVER CHANNEL, ALABAMA DREDGING OPERATIONS2025/12/032025/12/20MOBILE DISTRICT
212616LOCK REOPENED DARDANELLE LOCK (No. 10) NM 205.5 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/12/032025/12/04LITTLE ROCK DISTRICT
212617SAILING INSRUCTIONS DOWNSTREAM APPROACH AT NORRELL LOCK AND DAM (NM 10.3) MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/12/032025/12/05LITTLE ROCK DISTRICT
212579BLACK WARRIOR TOMBIGBEE WATERWAY, ALABAMA HOLT LOCK AND DAM (RIVER MILE 347) TEMPORARY CLOSURE2025/12/022025/12/02MOBILE DISTRICT
212606TOW HAULAGE OUT OF SERVICE JOE HARDIN LOCK AND DAM (No. 3) NM 50.2 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/12/02UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
212607UPDATE ON LOCK REOPENING DARDANELLE LOCK (No. 10) NM 205.5 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/12/022025/12/06LITTLE ROCK DISTRICT
212524Jonesville Lock and Dam Closure Ouachita/Black River2025/12/012025/12/03VICKSBURG DISTRICT
212564KENTUCKY LOCK INTERMITTENT CLOSURES TENNESSEE RIVER MILE 22.4 2025/12/012025/12/19NASHVILLE DISTRICTNav Notice 25-39.docx
212581LOCK CLOSURE Starved Rock Lock and Dam, RM 231.02025/12/012025/12/01ROCK ISLAND DISTRICT
212571DREDGING OPERATIONS Atchafalaya River Stout's Pass2025/11/262026/01/16NEW ORLEANS DISTRICT
212600CAUTION ADVISORY DARDANELLE POOL (No. 10) NM 205.5 to NM 292.8 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/11/262025/12/10LITTLE ROCK DISTRICT
212601MONTGOMERY POINT LOCK AND DAM (NM 0.5) NAVIGATION PASS OPEN MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/11/26UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
212567TOMBIGBEE RIVER, ALABAMA CHANNEL OBSTRUCTION ST. ELMOS BAR, MILE 952025/11/25UNTIL FURTHER NOTICEMOBILE DISTRICT
212523212412-1LOWER MONUMENTAL NAVIGATION LOCK OUT OF SERVICE2025/11/242025/11/25WALLA WALLA DISTRICT
212540PERDIDO PASS, AL DREDGING OPERATIONS2025/11/242025/12/25MOBILE DISTRICT
212562SPECIAL SAILING INSTRUCTIONS - WIDTH RESTRICTION MONTGOMERY POINT LOCK (No. 99) NM 0.5 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/11/23UNTIL FURTHER NOTICELITTLE ROCK DISTRICT
212618212561-1UNSCHEDULED LOCK CLOSURE DARDANELLE LOCK (No. 10) NM 205.5 MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM 2025/11/222025/12/03LITTLE ROCK DISTRICT
212547SAILING LINE UPDATE Pilot Peak Bend Illinois Waterway River Mile 48 - 472025/11/21UNTIL FURTHER NOTICEST. LOUIS DISTRICTILWW_47K1725MP_AIS_ATONS_lae.pdf
212539GULFPORT HARBOR, MISSISSIPPI DREDGING OPERATIONS2025/11/202025/12/16MOBILE DISTRICT
212541BLACK WARRIOR/TOMBIGBEE RIVER, ALABAMA SELDEN LOCK TEMPORARY CLOSURE RIVER MILE 2612025/11/202025/11/20MOBILE DISTRICT
212542SAILING LINE UPDATE Seventy-Six Towhead Light Upper Mississippi River Mile 92 - 89.52025/11/202025/11/21ST. LOUIS DISTRICT
212483Lock Closure T.J. O’Brien Lock River Mile 326.52025/11/182025/11/14CHICAGO DISTRICT
212626212420-3NEW GUIDE CELL CONSTRUCTION AND SCHEDULED LOCK CLOSURES UPDATE - 5 DECEMBER 2025 Lock and Dam 25 Upper Mississippi River mile 241.42025/11/182026/11/01ST. LOUIS DISTRICTW912P925R0001_Attachment_2___Plans - Dredging Limits.pdf
212409MULZER – CHARLESTOWN QUARRY MOORING CELL REPAIRS OHIO RIVER MILE 586 2025/11/172025/12/12LOUISVILLE DISTRICT
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