The tug Sea Eagle II pushes the cement barge Saint Marys Cement II down the Saint Claire River south of Marine City, Michigan on September 3, 2006. The Sea Eagle II was built as the Sea Eagle in 1979, renamed the Canmar Sea Eagle in 1979 and carried that name until 1991 when it assusmed its current name. The St. Marys Cement II was built in 1978 as the Velasco, renamed the Canmar Shuttle in 1981 and was converted into its present form and name in 1990.