 Since the beginning of the 21st century , Iowa DOT has continued to widen US 30 to four lanes . In 2004 , an $ 18 @.@ 6 @-@ million ( equivalent to $ 28 @.@ 1 million in 2016 dollars ) , four @-@ lane section opened from east of Marshalltown to the Meskwaki Settlement west of Tama , bypassing Le Grand . In 2010 , two sections of expressway were completed . A seven @-@ and @-@ a @-@ half @-@ mile @-@ long ( 12 km ) section from Colo to State Center opened to westbound travelers on November 29 , while the eastbound lanes opened a week later . The seven @-@ and @-@ a @-@ half @-@ mile @-@ long ( 12 km ) section , which bypasses the Tama / Toledo area , opened in two segments . The first of which opened on November 1 , and the second on November 25 . On July 7 , 2011 , a section from State Center to Iowa 330 opened in Marshall County . This created a four @-@ lane expressway from Ogden to Tama , covering 75 miles ( 121 km ) . 
