The Louisville-based conservation group River Fields and the national preservation organization National Trust for Historic Preservation have files suit in federal court claiming that the Federal Highway Administration broke the law in its 2003 approval of the Louisville-Southern Indiana Bridges Project: Louisville Courier-Journal: River Fields lawsuit could halt Ohio River Bridges Project (Sept. 10, 2009) , Associated Press: Suit seeks to halt bridges project (Sept. 10, 2009) 

The Courier-Journal printed two letters to the editor in opposition to the lawsuits: Louisville Courier-Journal: Bridges lawsuit is criticized (Sept. 16, 2009)