A public information meeting scheduled for Wednesday to discuss “right of way impacts” on expansion of I-380 south of Cedar Rapids will also provide updated details of the expansion in general.
The meeting already has PDFs posted online. The diagrams show a six-lane I-380 between the County Road F12 exit and the rest area, and an eight-lane I-380 between the rest area and the airport exit. The airport exit, which will become a diverging diamond, has more lanes on the ramps than a plan released in 2019. I-380 southbound will be four lanes from US 30 to the airport exit, but three lanes northbound. My suspicion on the difference is because the entire I-380/US 30 interchange has to be rebuilt before I-380 can be six lanes through the interchange, and that’s not part of this package.
Expansion of 380 from the Forevergreen Road exit to north of the Penn Street exit through North Liberty, and from the F12 exit to US 30, is mostly programmed for 2025. The 5-or-so-mile space between, including the bridges over former IA 965 and the Iowa River, is not in the five-year plan yet.