This section of the Ragbrai Map has been labeled as 18 but curved like 225 since it came out. I have assumed the label was in error since 225 would be more cyclist-friendly. I just received a reply from Hancock County engineers saying that they notified Ragbrai officials of the bridge repair project back in November. Perhaps highway 18 was always the intended route and the error was in the artwork that imitates 225 so well.