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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 The site also has Policy Notices that remain in place until superseded.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
211568Lock Closure Lockport Lock River Mile 2912026/03/312026/05/20CHICAGO DISTRICT
211009Auxiliary Lock Annual Maintenance Period2026/03/022026/03/13SEATTLE DISTRICT
2118312026 Portland Annual Navigation Lock Maintenance Outage2026/03/012026/03/22PORTLAND 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
211836211009-1Auxiliary Lock Annual Maintenance Period2026/02/252026/03/13SEATTLE DISTRICT
2120092026 WALLA WALLA DISTRICT NAVIGATION LOCK MAINTENANCE OUTAGE2026/02/212026/03/29WALLA WALLA 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
212200Lock Closures Upper Mississippi River2025/12/082026/03/16ST. PAUL DISTRICT
211892Allegheny River Lock #2, Allegheny River Mile 6.7 Closure 2025/11/122025/12/20PITTSBURGH DISTRICT
211008Large Lock Maintenance Period2025/11/102025/11/26SEATTLE DISTRICT
211837211008-1Large Lock Maintenance Period2025/11/102025/11/27SEATTLE DISTRICT
212180Montgomery Locks and Dam Ohio River, Mile 31.7. Closure of Primary Chamber2025/11/082025/11/16PITTSBURGH DISTRICT
211945211008-2Large Lock Maintenance Period2025/11/032025/11/25SEATTLE DISTRICT
211946211008-3Large Lock Maintenance Period, Change #12025/11/032025/11/25SEATTLE DISTRICT
212043Lock Closure Chicago Harbor Lock2025/11/032025/11/07CHICAGO DISTRICT
212302FACILITY MAINTENANCE DREDGING VISTRA CORP, MIAMI FORT POWER PLANT OHIO RIVER MILE 490 2025/11/032025/11/11LOUISVILLE DISTRICT
212281SEASONAL LOCK CLOSURE Lower St Anthony Falls Lock and Dam, UMR 853.3 Lock and Dam 1, UMR 847.92025/11/022026/04/19ST. PAUL DISTRICT
212283212281-1SEASONAL LOCK CLOSURE Lower St Anthony Falls Lock and Dam, UMR 853.3 Lock and Dam 1, UMR 847.92025/11/022026/04/19ST. PAUL DISTRICT
212182MISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 13, River Mile 522.52025/10/282025/11/01ROCK ISLAND DISTRICT
212098CHEATHAM LOCK CLOSURE CUMBERLAND RIVER MILE 148.7 2025/10/272025/10/31NASHVILLE DISTRICTNav Notice 25-36.pdf
212253DOCK REPAIR MARATHON PETROLEUM, INC. BIG SANDY RIVER, MILE 3.632025/10/272025/11/01HUNTINGTON DISTRICT
212258212253-1DOCK REPAIR MARATHON PETROLEUM, INC. BIG SANDY RIVER, MILE 3.632025/10/272025/11/01HUNTINGTON DISTRICT
212303211734-1MCALPINE LOCKS & DAM PORTLAND CANAL WALL REPAIRS OHIO RIVER MILE 606.8 2025/10/272026/04/17LOUISVILLE DISTRICTNotice 2025-052 McAlpine - Portland Canal Wall Repairs map.pdf
212282Illinois Waterway Lock Closure Brandon Road Lock and Dam, RM 286.02025/10/242025/10/20ROCK ISLAND DISTRICT
212299212282-1Illinois Waterway Lock Closure Brandon Road Lock and Dam, RM 286.02025/10/242025/10/24ROCK ISLAND DISTRICT
212070UPPER MISSISSIPPI NEW MOORING CELL UMR Mile 583.8, Pool 112025/10/23UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
212247SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK2025/10/232025/10/23WALLA WALLA DISTRICT
212300212070-1UPPER MISSISSIPPI NEW MOORING CELL UMR Mile 583.8, Pool 112025/10/23UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
212301212070-2UPPER MISSISSIPPI NEW MOORING CELL UMR Mile 583.8, Pool 112025/10/23UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
212340TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI JAMIE WHITTEN LOCK, MILE 411.92025/10/232025/11/25MOBILE DISTRICT
212341TENNESSEE-TOMBIGBEE WATERWAY, MISSISSIPPI CHANNEL RESTRICTION DEMOPOLIS LAKE, MILE 262.92025/10/232025/11/02MOBILE DISTRICT
212304CHANNEL MAINTENANCE DREDGING & LOCK CLOSURE Melvin Price Locks and Dam - Auxiliary Lock Upper Mississippi River, River Mile 200.5 2025/10/22UNTIL FURTHER NOTICEST. LOUIS DISTRICT
212045Dashields Locks and Dam Ohio River, Mile 13.3, Closure of Primary Chamber2025/10/212026/01/05PITTSBURGH DISTRICT
212093212045-1Dashields Locks and Dam Ohio River, Mile 13.3, Closure of Primary Chamber2025/10/212026/01/05PITTSBURGH DISTRICT
212280212255-1Dredging Mississippi River MM 5902025/10/202025/10/21VICKSBURG DISTRICT
212279Dredging Black River MM 172025/10/19UNTIL FURTHER NOTICEVICKSBURG DISTRICT
212252UPPER MISSISSIPPI MOORING CELL UNDER CONSTRUCTION UMR Mile 342.7, Pool 212025/10/17UNTIL FURTHER NOTICEROCK ISLAND DISTRICT
212255Dredging Mississippi River MM 5902025/10/172025/10/19VICKSBURG DISTRICT
212259THEODORE SHIP CHANNEL, ALABAMA DREDGING OPERATIONS2025/10/172025/12/18MOBILE DISTRICT
212094SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK2025/10/162025/10/17WALLA WALLA DISTRICT
212243212094-1AMENDMENT TO NAVIGATION NOTICE 212094, 25-40a: SCHEDULED LOCK OUTAGE AT MCNARY NAVIGATION LOCK 2025/10/162025/10/16WALLA WALLA DISTRICT
212249212223-2Jonesville Lock and Dam Daylight Only Operation Ouachita/Black River Mile 25 2025/10/162025/11/10VICKSBURG DISTRICT
212250212223-3Jonesville Lock and Dam Daylight Only Operation Ouachita/Black River Mile 25 2025/10/162025/11/10VICKSBURG DISTRICT
211897MCALPINE LOCKS & DAM PORTLAND CANAL LG&E AERIAL POWER LINE REPLACEMENT OHIO RIVER MILE 6052025/10/152025/10/23LOUISVILLE DISTRICT
212242BLACK WARRIOR TOMBIGBEE WATERWAY DREDGING OPERATIONS RIVER MILE 218-2252025/10/152025/10/25MOBILE DISTRICT
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