Iowa DOT News Release

Proposed improvements at the Interstate 80/U.S. 169 interchange at De Soto in Dallas County

Posted on: June 30, 2020

AMES, Iowa – June 30, 2020 – The Iowa Department of Transportation is requesting public input for proposed improvements at the I-80 interchange with U.S. Highway 169 at De Soto, in Dallas County. The proposed improvements include installation of traffic signals at the I-80 ramp terminals along with turn lanes to improve traffic operations at the interchange.

Traffic would be maintained via staging at all times throughout the project. It is anticipated that lane closures would be limited to non-peak travel hours.

For general information regarding the proposed improvements please view the information online at or contact Scott Suhr, transportation planner, Iowa DOT District 4 Office, 2210 E. Seventh Street, Atlantic, Iowa 50022, phone 712-243-3355 or 800-289-4368, email: If you do not have access to the internet, please feel free to contact Scott regarding this project.

Visit the Iowa DOT’s project-related public involvement event website at for information about scheduled public meetings and hearings, or view and offer input on any DOT project using the new Map Search feature. Comments and questions regarding this online meeting should be received by July 14, 2020.  If you would like to receive future email notifications, or submit a comment or question regarding this project, go to:


Federal and state laws prohibit employment and/or public accommodation discrimination on the basis of age, color, creed, disability, gender identity, national origin, pregnancy, race, religion, sex, sexual orientation, or veteran’s status. If you believe you have been discriminated against, please contact the Iowa Civil Rights Commission at 800-457-4416 or Iowa Department of Transportation’s affirmative action officer.

Iowa highway in the evening