Bulkheads removed at Upper St. Anthony Falls Lock – last hurdle in $3 million upgrade:    A contractor crews lifts steel bulkheads on the upstream side of the St. Anthony Falls Lock on March 20, a tricky maneuver completed in advance of anticipated high flows resulting from snowpack melt in the Mississippi headwaters. For nearly two weeks lock staff and personnel from the maintenance and repair section broke-up mounds of ice that had accumulated below the bulkheads to ensure the miter gates and tainter gate were operational and the bulkheads wouldn’t stick during their removal by means of a cr - Stock Image