There’s only about a 25-mile segment of US 151 in Iowa that isn’t four lanes, but that segment has raised concerns about its safety. There are no turn lanes, and sometimes the line of sight isn’t great. One possibility is to make 151 between Fairfax and Amana a “Super-2” road with passing and/or turn lanes.
The state is seeking feedback through Thursday. (As has been the case for a while, stuff like this goes through an online registration process.)
KCRG has a story about some drivers’ experiences. (As has been the case for a while, I can’t embed, and I discovered that if you scroll down past the video, the video keeps playing but doesn’t reappear when you scroll back up. What the heck?)