This is really cool.
#Rivers #GreatLakes #Rapids #Water #Flow
"...Those changes are intended to improve fish passage, increase habitat diversity and recreate some of the river’s historic flow patterns."

Grand Rapids to ‘restore the rapids.’ But how will it keep out lamprey?
Starting July 1, Grand Rapids will begin removing four downtown dams in a two-year effort to restore the natural rapids that gave the city its name. But officials are still studying how to remove a fifth dam and still keep out invasive sea lamprey.







