The National Transportation Safety Board has released its report on a January 7, 2023, incident in which the 715-foot long, 1980-built Great Lakes bulk carrier American Mariner grounded on shoals, damaging three ballast water tanks. No pollution or injuries were reported, but damage to the vessel was $600,000.
At about 07.34 local time on the day of the accident, the American Mariner, owned by American Steamship Company and operated by Grand River Navigation, had begun transiting outbound in the...