The Hickman Road (US 6) exit on I-35/80 will be turned into a diverging diamond interchange by the end of the decade, according to Iowa DOT plans. KCCI has a story. The DOT website blessedly has PDFs available following the Nov. 22 public meeting.
This project will also affect the exits to the north and south. The two loops at the Douglas Avenue exit will be elongated. Southbound I-35/80 to University Avenue will have a two-lane exit. There will be five lanes of through traffic northbound and four lanes southbound, with auxiliary lanes (entrance doesn’t merge but becomes exit-only) between the Hickman exit and those to the north and south.
West on Hickman, development in Waukee has overwhelmed the four-laning done in 2000. There is some work just west of I-35/80, KCCI reports, but otherwise nothing is programmed.