LNM13-B493F9
SÉCURITÉReceived 23 Sept 2026, 00:00 UTCArchived 04 Nov 2026, 18:24 UTC
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Positions open on the mapSECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER
General / Marine Construction (Excluding Bridges) / Dredging
Mason Hopper Dredge Bayport will be conducting hopper dredging operations on the lower Columbia River from (RM 03+00 to 105+00) from 12 Jul through 01 Nov 2026. Specifically targeting Miller Sands and Pillar Rock at (RM 24+20 to 25+40). Disposal will be at various flow lane disposal sites. Hours of operation are 7 days per week, 24-hrs per day. M/V Dredge Bayport will serve at the Hopper Dredge with M/V John M and M/V Aggie serving as the crew/survey vessel. Working vessels may be hailed on VHF-FM channels 13, 16 and 66. Mariners are requested to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. For additional information, contact Paul Karscay/Paul Wittkopf, Dredge Bayport Captains at 562-762-5450, Taylor McRae, Project Manager at 904-228-5782, Rebecca Read, Project Engineer at 904-466-2564 or Juan Valdez, Operations Manager at 904-697-6099.
Position 46-15.40N 124-01.48W
USCG Northwest District Local Notice to Mariners 43/2026