 East of the Dayton Avenue interchange is I @-@ 35 , which connects US 30 to Minneapolis , Minnesota , to the north , and Des Moines to the south . Continuing east , the expressway travels six and a half miles ( 10 @.@ 5 km ) to Nevada , six miles ( 9 @.@ 7 km ) more to the US 65 interchange at Colo , and seven and a half miles ( 12 @.@ 1 km ) to where the four @-@ lane expressway ends at State Center . Just before the Iowa 330 interchange seven and a half miles ( 12 @.@ 1 km ) later , the road becomes a four @-@ lane expressway again . One mile ( 1 @.@ 6 km ) to the east are two half @-@ interchanges with U.S. Highway 30 Business ( US 30 Business ) . 
