Safety Zone Upper Mississippi River Mile Markers 839.2-840.5

The Coast Guard establishes a safety zone on the Upper Mississippi River covering Mile Markers 839.2 to 840.5. The zone is effective for the period specified in the rule and applies to all vessel traffic within this 1.3-mile river segment. All vessels seeking to transit the zone must provide advance notification to Coast Guard dispatch and follow any operational restrictions imposed by authorities.\n\nAffected parties include transportation companies and vessel operators using this stretch of the Upper Mississippi River. Non-compliance with the safety zone requirements may result in enforcement action. Operators should monitor official Coast Guard communications for any updates to zone status or duration and coordinate transit plans with Coast Guard dispatch to avoid potential violations.