Mussel monitoring on the St. Croix River: The St. Paul District scoured the riverbed with the Minnesota DNR, National Park Service and St. Croix River Association to monitor freshwater mussels near St. Croix Falls, Wis., Aug. 6-9. The effort undertook by a few agencies that make up the Mussel Coordination Team is part of an ongoing re-establishment plan for Higgins eye mussel populations in Minnesota, Wisconsin, Illinois and Iowa. The re-establishment plan was developed at the turn of the century to counteract negative impacts to mussels as a result of ongoing maintenance of the 9-foot navigation channel and subsequent dispersion of zebra mussels, which affect survivability of the federally endangered mussels. Find out more here: http://www.mvp.usace.army.mil/Home/Projects/Article/571035/endangered-species-conservation-of-native-mussels/