A member of the public provides testimony during the Mississippi River Commission's public hearing in public hearing in St. Louis. These sessions are at the heart of the Commission's mission-- giving the public a voice in shaping the decisions that impact the river, navigation, flood control and the environment. As the MRC continues its the tradition of listening and engaging along the river, this year's hearings also highlight a historic milestone-- the U.S. Army Corps of Engineers' 250 years of service to the nation.