SAFETY/UPPER MISSISSIPPI RIVER/ATON/SEC UMR BNM 0139-25

united states coast guard

MM 800.4-801.7 UMR
1. THERE WILL BE DREDGING OPERATIONS TAKING PLACE ON THE UPPER MISSSISSIPPI RIVER AT MM 800.4-801.7, STARTING JUNE 4,2025, MONDAY THROUGH FRIDAY FROM 0700 TO 1900.
2. MARINERS ARE REQUESTED TO CONTACT THE MARGRET D OR MV ON CHANNEL 12, THIRTY MINUTES PRIOR TO TRANSITING THE AREA. MARINERS ARE URGED TO TRANSIT AT THEIR SLOWEST SAFE SPEED TO MINIMIZE WAKE AND PROCEED WITH CAUTION AFTER PASSING ARRANGEMENTS HAVE BEEN MADE.
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