We just drove to Coralville and back on 380. The Interstate is mostly pretty good, with lots of dry pavement in at least one lane much of the way; one lane is still fairly icy south of the airport, and the packed ice is more widespread south of North Liberty.
We counted over 50 disabled vehicles basically between CR and North Liberty (we got off 380 on Forevergreen Road). Proving the ice was still a factor, there were two vehicles that had spun off the interstate right before we passed by just north of North Liberty on our way back.