The first tier, completed in 2001. determined the need to reconstruct and widen the highway to six lanes (eight in urban ... It can also guide other work in the corridor. like the replacement of crossroad bridges or interchange improvements. ... of a fouryear reconstruction phase for rebuilding the I-480/U.S. 75 (28th 8 Dodge) interchange south of downtown Omaha. ... NORTH DAKOTA: Badlands Posed Challenge to Builders I-94 (formerly U.S. 10) between the Woodbury interchange foranbsp;...