Sea Robin/barge Hugh in Duluth harbor

The tug Sea Robin arrived in Duluth on Tuesday afternoon at 2:30 (above). It was pushing the barge Hugh with a cargo of calcium chloride for the Hallett #8 dock in Superior. Calcium chloride is a high grade liquid (42% salt content) that needs to be diluted a bit here before it is sent to the end customer, mostly county highway departments in Minnesota. They use it to keep the … [Read more...]