Flooded soccer fields

Levees and channels may enable commerce, but destroy a natural waterways mosaic of riffles, runs, and pools. By reducing the amount of surface over which floodwaters may spread, a levee increases flooding on adjacent, unprotected lands.

Levees and channels may enable commerce, but destroy a natural waterways mosaic of riffles, runs, and pools. By reducing the amount of surface over which floodwaters may spread, a levee increases flooding on adjacent, unprotected lands.