Major expansion project planned for busy Idaho Falls intersection Updated at Share This A busy morning of traffic at the intersection of Woodruff Avenue and 17th Street in Idaho Falls. Officials plan to have an expansion project at the intersection in 2022. | Eric Grossarth, EastIdahoNews.com IDAHO FALLS — Big plans are underway for the intersection of Woodruff Avenue and 17th Street in Idaho Falls. The Federal Highway Administration and the Idaho Transportation Department have identified the project as “a public need,” according to a city of Idaho Falls news release. Both agencies said the intersection needs work to serve traffic better as Idaho Falls continues to grow.