 Reconstruction across the state took place in phases . Road crews worked in roughly 15 @-@ mile @-@ long ( 24 km ) zones divided into smaller sections . In each section , one direction of highway was closed while the other direction became a two @-@ lane , two @-@ direction road . When one section was completed , the crew would move on to the next section , preventing the entire zone from being closed at once . Iowa was not alone in the required repairs to I @-@ 80 . The Automobile Association of America reported that nearly every state along I @-@ 80 had reports of road work . In Iowa , though , there were two sections in 1988 which were particularly troublesome for travelers . The I @-@ 680 interchange near Neola was closed , so I @-@ 680 @-@ bound traffic was forced to travel through Neola on Iowa 191 to reach that highway . Another bottleneck occurred near Williamsburg , where it was a two @-@ lane road for six miles ( 10 km ) . 
