Let's preserve the stretch of 2nd St S. curving along the river...this short loop is a very nice bit of urban/nature overlap.

Build a handsome permanent flood wall where the grass berm is now located along the north side of 2nd St.

Reserve openings in this wall for driveway access to the hi-rise and the apartments just north of the existing berm.

During floods, seal these driveways and the street itself with sliding panels (ala Moorhead's new downtown flood panel system installed on 1st Ave N.).