LNM13-FA9A46
SÉCURITÉReceived 04 Nov 2026, 00:00 UTC
Warning text
CRIMS ISLAND TO ST HELENS - LONGVIEW
General / Marine Construction (Excluding Bridges) / Dredging
The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Slaughter Bar/Lower Dobelbower Bar (RM 63+20 to RM 67+40) from 03 – 10 Nov 2026. Disposal will be at RM 70 OR side and RM 61 WA side. USACE requests mariners transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors.
USCG Northwest District Local Notice to Mariners 44/2026
Keywordsmarine construction