Information on another stage of the Northeast Mixmaster was released online and in a public meeting August 9. This project is about expanding I-80 between I-35 and US 65.
The PDFs are here. The expansions shown in the “full build” — adding lanes on I-80, widening or replacing bridges, and making northbound 65 to westbound 80 two lanes — are years in the future. The grading/bridges component is programmed for 2024, according to the short video linked in the meeting.