Navigation Notice: Upper Mississippi River
New closures added to Lock 25 on Upper Mississippi
A closure for 4 June and 9 June have been added to the schedule for construction related activities. Starting on or about 18 November 2025, USACE contractor Massman Construction will…
Read MoreUpper Mississippi at Chester Bridge Channel Closure
The Chester Bridge Project is needing to do some work out in the main channel up high in manlifts. The barge traffic is too much for the crews working over…
Read MoreSafety Advisor Upper Mississippi River
Coast Guard has received a report of shoaling IVO MM 800.5 LBD on the UMR. Mariners are advised to transit the area with caution. (more…)
Read MoreGrounded Barge – Upper Mississippi River
ALL MARINERS ARE ADVISED OF A GROUNDED BARGE ALONG THE RIGHT DESCENDING BANK AT MILE MARKER 66.4 ON THE UPPER MISSISSIPPI RIVER. THE BARGE IS CURRENTLY OUTSIDE OF THE NAVIGABLE…
Read MoreTemporary Lock Closure Lock/Dam 3, UMR 796.9
TEMPORARY LOCK CLOSURE Lock and Dam 3, UMR 796.9 Be advised there will be temporary closure at Lock and Dam 3, Welch, MN, on Thursday, 28-MAY-26, from 8:00 AM to…
Read MoreSt. Louis Fireworks Event July 3-4
Information regarding the fireworks display on July 3 and July 4, from barges at UMR mm 179.2-180.0 can be found here: July 3, 2026 July 4, 2026 On behalf…
Read MoreNew Guide Cell Construction and Scheduled Lock Closures Update L/D 25
Starting on or about 18 November 2025, USACE contractor Massman Construction will commence on a new 50-foot diameter guide cell downstream of Lock and Dam 25. The new guide cell…
Read MoreMISSISSIPPI RIVER LOCK CLOSURE Lock & Dam 19, River Mile 364.2
Notice Number: 213855/26-213855 Date: 06/09/2026 07:00 thru 06/11/2026 13:00 CDT Lock 19 will be closed from 0700-1300 daily on June 09-11, 2026. The purpose of the closure is to allow…
Read MoreUpdate/Upper Mississippi River/General/SEC UMR BNM 0055-26 Update-2
A. THE FOLLOWING ZONES ARE IN HIGH WATER ACTION PHASE IN ACCORDANCE WITH THE WESTERN RIVERS WAP ANNEX. 1. UMR: POOL 18 (MM 410.5 – 437.0 UMR) B. VESSELS ARE…
Read MoreUpdate/Upper Mississippi River/General/SEC UMR BNM 0052-26 Update-8
A. THE FOLLOWING ZONES ARE IN HIGH WATER WATCH PHASE IN ACCORDANCE WITH THE WESTERN RIVERS WAP ANNEX: 1. POOL 15 Rock Island (MM 482.9 – 493.2) 2. POOL 20…
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