A dive team Monday night was searching the St. Croix River in Hudson, Wis., for the body of a Lake Elmo 18-year-old who had been trying to swim across the St. Croix channel. The teen made it about a third of the way, began to struggle, turned around to go back to the dike and went under, investigators said.

President Barack Obama signed the bill authorizing a $690 million bridge near Stillwater. He signed it over the objections of some federal officials who worry exempting the St. Croix from the Wild and Scenic Rivers Act sets a bad precedent.

The U.S. Senate unanimously authorized construction of a new St. Croix River bridge near Stillwater. The move comes after 15 years of debate over how to improve traffic flow while also protecting the St. Croix, which is a National Scenic River.

Steven Richard Labarron, 52, Edina, drowned in the St. Croix River near Taylors Falls, Minn., while moving a dock near a steep bank, the Star Tribune reported. The dock slipped and hit him in the head and he fell in the water, the Chisago County Sheriff's Office reported.

According to the DNR, the fish was caught Thursday near Prescott, Wisconsin. The Pioneer Press reports it's among a dozen invasive Asian carp caught along the Minnesota/Wisconsin border since 1996.

MnDOT officials tell MPR that foundation work on the new bridge crossing the St. Croix River downstream from Stillwater will begin next spring, rather than in 2014. The proposed four-lane bridge connecting Minnesota and Wisconsin will replace the 80-year-old Stillwater Lift Bridge. The entire project is estimated to cost up to $676 million and take about three years to complete.