LNM08R-D16F03
SÉCURITÉReceived 23 Sept 2026, 00:00 UTCArchived 07 Oct 2026, 16:18 UTC
Warning text
LOWER MISSISSIPPI RIVER - UPPER MISSISSIPPI RIVER
General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes
Continuing through October 2026, construction will be conducted for a new 50 ft diameter guide cell downstream of Lock and Dam 25. The new guide cell will be constructed approximately 340 ft downstream of the existing guide cell. Intermittent periods of active construction will take place adjacent to the navigation channel throughout the duration of the project. L/D 25 will be closed from 7:00 a.m. to 7:00 p.m., on September 29, 2026, October 1, 2026, and October 9, 2026. Additional Lock closures may be required as construction of the guide cell continues. Mariners should be on the lookout for construction activities and related equipment to include barges, cranes, and work boats that will be operating in the area. All vessels should be alert for, and abide by, any special instructions that may be issued by the Lockmaster. Mariners may contact the Lockmaster via VHF-FM Channel 14, or at (636) 566-8120, for further information.
USCG Heartland (MRS) District Local Notice to Mariners 39/2026
Keywordsmarine construction