Upper St. Anthony Lock
On Tuesday at 11:59 p.m., the Upper St. Anthony lock closed its doors for a final time. Last year, Congress ordered the lock closed to try to stop the northward spread of invasive Asian carp up the Mississippi.
Three of Minneapolis’ locks on the Mississippi River have been reopened to recreational boating traffic Friday morning, two days after reopening to commercial vessels. According to the U.S. Army Corps of Engineers, St. Paul District, the Upper and Lower St. Anthony locks in downtown Minneapolis and Dam 1 near Minnehaha Park were originally closed to recreation traffic on June 24 when river flows exceeded 30,000 cubic feet per second (cfs) – over twice the speed of the