LNM09-9FC894
Received 23 Sept 2026, 00:00 UTCArchived 01 Nov 2026, 15:02 UTC
Warning text
Positions open on the mapSUPERIOR FRONT CHANNEL - STLOUISBAY
General / Bridges / Construction
From August 26 through October 10, 2026, between the hours of 0700 and 1900, Monday through Friday, a 70-foot by 50-foot barge will be taking soil borings under the John A. Blatnik I-535 Bridge at Mile 2.74 over the St. Louis Bay and River. The barge should be operating on the edges of the channel but will move to accommodate larger vessels with a 2-hour advance notice. The barge will monitor VHF-FM Marine Radio Channel 16.
Position 46-44.95N 092-06.05W
USCG Great Lakes District Local Notice to Mariners 40/2026