Why not continue to plan for structures that double as recreation AND flood protection? In the last city plan, were was a call for a performing arts center that looks out on the river AND protects 2nd Avenue (pilings, cement walls, and glass that looks out over the Red River from a high place). Create dikes and more permanent recreation structures that won't get swept away by cyclical floods. When the waters recede, we could have small boat docks, cycling and skiing trails, and plenty of picnic space!