Location: I-29 and US-275, Council Bluffs Reassurance shield as US-275 joins I-29 and we head out of Council Bluffs. Location: I-29 and Bunge Ave, Pottawattamie Cty A couple miles later, we’ll approach former Iowa 370, which was decomissioned in 2014. Location: I-29 and Bunge Ave, Mills Cty Exit for former IA-370, which heads west to … Continue reading U.S. Route 275, I-29/IA-92 to I-29/US-34