The barges are lined up and waiting to go. I have always liked barges, especially rusty barges. They are so low tech. They get pushed along the river from point A to point B and have been around since ancient times. They are 195 by 35 feet and can carry up to 1,500 tons of cargo. St. Paul is a river city, and tons of cargo drifts through it every day . . until the river freezes.