Shannon Jost
Friday, May 29, 2026
State and regional transpor‑tation officials have presented the final recommendations for the Interstate 29 Corridor Study, outlining a series of major recon‑struction projects, interchange redesigns and long‑term improve‑ments planned for the 11‑mile stretch of interstate running through Union County. The public open house, held May 19 at the North Sioux City Com‑munity Center and streamed vir‑tually, served as the final public meeting before the study is com‑pleted later this year. The South Dakota Department of Trans‑portation (SDDOT) is leading the project with consultant HDR and partner agencies including SIMPCO, Union County, North Sioux City, Dakota Dunes, the Iowa DOT and the Federal High‑way Administration.