The South Dakota Department of Transportation (SDDOT) will be holding a public meeting open house from 4:30-6:30 p.m. on Thursday, October 9, 2025, at the North Sioux City Community Center, 205 Sodrac Dr., North Sioux City, SD, to provide an update on the Interstate 29 Corridor Study. Since the last public meeting, the study team has completed an assessment of the corridor needs and is now ready to share design concept options and provide information about future corridor projects and developments.

  • If you’re not able to attend the meeting on Thursday, Oct. 9, 2025, you can also learn more and provide comments on the study website: https://i29corridorsd.com/.
  • Written comments will be accepted on Thursday, Oct. 9, 2025, and through the study website at https://i29corridorsd.com/ until Thursday, Oct. 23, 2025.
  • For further information regarding this study, contact Steve Gramm with SDDOT at 605-773-3281 (steve.gramm@state.sd.us) or Jon Markt with HDR at 402-399-1080 (jonathan.markt@hdrinc.com).