I have lived in the Twin Cities area all my life, and I recall, the Cannon River hasn't ever been a news topic for flooding, at least not notable. Here is a report that was done by a local college on the river and notes...."Long-term statistics show that the
river reaches bankfull stage about once every 2.3 years (Cannon Valley Trail)", and doesn't mention flooding. The report is at http://www.stolaf.edu/people/swift/CannonRiverProject.pdf
I hope that helps to ease your concern. It is a beautiful area!
The flooding was mainly on the west side of the river to Hwy 3. So the commerical businesses on the west side had the most damage. Our residential areas for the most part remained dry. (There was some water in basements due to the ground being so saturated.
The thing about the Cannon River is that it has a wide basin to fill in all but the downtown area where the dam was built and the limestone walls to channel the river, so where it could spread out it did not do any damage.
When you come to retire her we can search "high Ground!".
When will you be coming?
Been here all my life, and a home has never been flooded because of it. It comes over the banks a little in town, but there's only a grass field in that area, so it doesn't matter. But other than that, it is not an issue at all. Any other questions, just let me know, ok? I'm an Agent in Northfield so I can help you with anything you might need. email@example.com is my E-Mail address. Thanks.
I hope that helps!