06
Aug
Last spring the z-drive Alma S. joined the Bisso Towboat fleet. The boat also joined its sister vessel, Cecilia B. Slatten. Now 6 years old, Cecilia B. Slatten was the first tractor tug in what has become a growing fraternity of z-drives working on the lower Mississippi River.An increase in the inboard slant to the side bitts and bulwarks differentiates…