Description. Cooper Mooring Linemen perform the moorings and unmooring of vessels and barges along the Mississippi River. Work schedule and day to day tasks include. Rotating* on call and 24-hour shift work including: nights, weekends, holidays. Mooring and Unmooring vessels at docks and buoy systems. Maintenance of company assets. Driving distances between jobs. Compliance with Company Safety Standards. With *flexible work schedules and opportun...