 On the west end of Cedar Rapids , US 30 / US 218 turn to the southeast at the 16th Avenue SW interchange . Two miles ( 3 @.@ 2 km ) to the southeast is the Williams Boulevard interchange , where US 151 joins US 30 and US 218 . For four miles ( 6 @.@ 4 km ) , US 30 / US 151 / US 218 is a wrong @-@ way concurrency ; that is , where two or more routes heading in opposite directions share the same highway . In this instance , US 30 is the main east – west road while US 151 and US 218 are duplicate routes , nominally heading north and south , respectively . At the I @-@ 380 interchange , US 218 leaves US 30 / US 151 and joins the Avenue of the Saints highway . East of I @-@ 380 , US 30 / US 151 serve as a divider between the Lincolnway Village neighborhood to the south and a light industrial district to the north . 
