With the early 1960s growth of containerization, the number of industrial waterfront jobs in the state declined, and the canal's industries were no exception. With much fanfare, the USACE completed its last dredging of the canal in 1955, and soon afterward abandoned its regular dredging schedule, deeming it to no longer be cost-effective. The intake fan that brought Buttermilk Channel water into the flushing tunnel broke in 1963, leading to its closure. A year later, the Verrazano-Narrows Bridge opened, eliminating the need for industrial boats to use the canal at all, since trucks could use the bridge and Interstate 278 to ship goods from around the country to the Gowanus area.