The federal project to construct a bridge on US 93 over the Hoover Dam was a historic engineering accomplishment. Just as challenging for Arizona, however, was improving the highway’s approach to the new bridge to move traffic quickly and safely, all while respecting critical environmental considerations. The success of the Arizona Department of Transportation’s work to improve a 15-mile stretch of US 93 leading to the new Mike O’Callaghan-Pat Tillman Memorial Bridge has led to recognition … [Read more...] about US 93 Near Hoover Dam –State Project of the Year