The January floods threw a lot of ice every which way. Many rivers never refroze. From what I've seen, generally speaking, only small streams refroze. Larger ones and the major rivers never got a second coating of ice so are generally freer of ice than normal for this time of year. BUT, the key thing to remember here is that river ice is unpredictable now.
Some streams have fairly thick ice, some none, some a mixture of the two.
Those are some quick observations of a general nature. I hope they're helpful. Finally, this is a great time of year to watch ice. It's changing practically by the hour and will continue to do so for the next month or more, depending on where in Maine you are. Z.K. Monday, March 18.