LNM09-241F74
SÉCURITÉReceived 21 Aug 2026, 00:00 UTCArchived 01 Nov 2026, 15:02 UTC
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SUPERIOR FRONT CHANNEL - STLOUISBAY
General / Marine Construction (Excluding Bridges) / Boring and Core Samples
Location: Blatnic bridge pier foundations. Soil borings located outside but adjacent to navigation channel.
Valid 2026-08-21 to 2026-10-21.
USCG Great Lakes District Local Notice to Mariners 40/2026
Keywordsmarine construction