LNM09-27DC3D
SÉCURITÉReceived 21 Aug 2026, 00:00 UTC
Warning text
Positions open on the mapLAKE MICHIGAN - MANISTIQUE
General / Marine Construction (Excluding Bridges) / Dredging
Dredging the Manistique Harbor Federal channel. Submerged pipe lying on the lake floor marked by orange round buoys every 1,000 feet. (2) white buoys will be seen North and South of the dredge. The white buoys indicate winch anchor locations. The disposal area starts right on the west side of the West breakwater and goes an additional 6,200’ westward. Placement will be between the 4’ depth contour to the 10’ depth contour. The disposal area will be marked with white ball buoys on each corner. The main contact will be Superintendent Rob Lister. Cell# listed below. During rough seas, our pipe pontoon will be floating outside of the channel. It is bright yellow, 25’x8’x6’ and has (2) flashing amber lights on each end that come on at night. Another pipe pontoon that is bright yellow 25’x8’x6’ and has (2) flashing amber lights on each end will be in the disposal area.
Valid 2026-08-21 to 2026-12-05.
Position 45-56.62N 086-14.97W
USCG Great Lakes District Local Notice to Mariners 45/2026
Location map
Open on the full mapKeywordsmarine constructionrough seas