Hello List, Greetings-- we are Bob and Vicki, and are continuing the loop from Oxford, MD. (Original start point is Melbourne, FL.) We are a trawler with a mast that requires 26' of bridge clearance. (Maybe a little less in fresh water?) We have been unable to find info on bridges on the inland rivers. After we pass the two (17' and 19') low bridges in Chicago, is it OK to put the mast back up? If not, where is it prudent to do so? TIA for any info! Bob, Vicki and Rosie "Blue Moon" GB42-1009