The La Crosse marsh flooded after last week’s rain and because of the winter melt-off being much later this year. The water appears to be five inches deep by mid-week in the innermost part of the path. It was impassable and people were forced to turn around.
It can be a dangerous situation to try to pass through moving water even at this depth.
The low section of the pathway in the photo was put in a few years ago to prevent widespread flooding damage and it seems to be working. This section is sloped downward in order to keep the flooding isolated to this particular spot and to prevent washing-out the entire path.
Culverts are also working in order to keep down the pressure from the rising water.