Location: I-80 and IA 173, Cass Cty Reassurance shield after the Highway 173 interchange. Location: I-80 and CR N16, Cass Cty A couple miles later, we’ll approach CR N16. Location: I-80 and CR N16, Cass Cty CR N16 connects to downtown Atlantic. Location: I-80 and US 6, Cass Cty Just after that, we’ll approach US … Continue reading Interstate 80, IA-173 to US-6/US-71