A gravel barge is seen in late evening traveling up the Ohio River along the waterfront of downtown Louisville, Kentucky. Across the way are Clarksville and Jeffersonville, Indiana. Barges carrying gravel, stone aggregate, coal, and other commodities are a common sight along the river at nearly all times of the day and night. In many places such as Louisville, and Cincinnati they have to navigate not only multiple bridges where interstate highways cross, but also dam locks. In fact just before this picture was taken the barge shown passed through the McAlpine Lock and Dam system at the Falls of the Ohio.