Menomonee

At (just downstream of) the put-in lies an embedded box culvert. At low to moderate flows, it tends to be a pour-over. Experienced whitewater/wsiftwater paddlers should have no problem as long as they maintain momentum and paddle through it. At some flows, it could provide some play (though water quality is atrocious, making play inadvisable). At higher flows (above 1000 cfs) it becomes an area of short choppy waves. Some boaters may be able to catch on the fly for surfs, and there may be flows which allow regaining. Thing is, the river is so 'flashy' that you never really know what the flow will be once you are on the river (after gearing up and setting shuttle).