One of the biggest construction projects on San Marnan Drive since the route was built as IA 412 is Waterloo’s big project this summer. The road is going to be rebuilt this year, and much of the underlying road likely is original to state construction 65 years ago.
The project is in three stages that go west from IA 21 nearly to Ansborough Avenue. Most of the time the intersection with Kimball Avenue will be open. There is a frontage road between IA 21 and Kimball but it’s hard to get to from 21.
The city’s website outlines the stages of the six-month project.