The "River" design enhancement was installed on the north end of the Whilamut Passage Bridge in July 2013. Etched into its pedestal are the names of the eight Native American bands that make up the Kalapuya tribes, the area's first residents-- Ahantchuyuk, Atfalati, Chemapho, Chepenefa, Lackiamute, Santaim, Yamell and Yoncalla. The Kalapuya today are members of the Confederated Tribes of the Grand Ronde.
It is a 42-foot-long stainless steel depiction of a river and canoe flanked by camas flowers and cattails that runs between the north-and southbound bridges. Recognizing that travelers would not see all the detail driving by at 60 miles per hour, the artist intended that those driving by the would do so often and see something new each time.