Last week, we were at Duluth’s Aerial Lift Bridge and watched the lake freighter, Indiana Harbor enter the Duluth-Superior Harbor. It the largest in-land harbor in the world. It was a very windy day. The Indiana Harbor is 1000 feet long and 100 feet wide. Obviously there was enough clearance for the freighter, but it looked like a 747 landing on a two lane highway.
Two interesting facts: (1) The Bridge is listed on the National Register of Historic Places and was based on the design of a bridge in Rouen, France. (2) The Indiana Harbor has its own website that lists its position, destination and cargo. I assume all the ships operating on the Great Lakes use the same website.
Our one regret is that the boat tours of the harbor ended on October 16.