Iowa DOT News

Public input requested for proposed improvements on Iowa 175 at Interstate 29 near Onawa in Monona County

AMES, Iowa – April 25, 2024 – Join the Iowa Department of Transportation for a virtual public information meeting to share your input on several proposed improvements on Iowa 175 near Onawa in Monona County.



The first improvement includes a bridge replacement on Iowa 175 over Interstate 29 as well as reconstruction of the interchange ramps. This project also includes the reconstruction of the 28th Street / Filbert Avenue / Iowa 175 intersection with left turn lanes on Iowa 175.

We plan to maintain traffic on Iowa 175 through the construction project planned for 2026 and 2027.

Virtual presentation:

When: Anytime between Thursday, April 25, 2024 – Monday, May 6, 2024.

How to Attend: Navigate to

Description: The website will help you get information about the project and allow you to give us feedback. If you would like to receive future emails about this project or submit a comment or question for this project, you can go directly to: Initial comments are due by Monday, May 6, 2024.

For general information regarding the proposed project, contact Shane Tymkowicz, P.E., assistant district engineer, Iowa DOT District 3 Office, 6409 Gordon Drive, Sioux City, Iowa 51106, phone 712-274-5834 or 712-261-0405, email [email protected]

Please contact the person listed above if you need information in another language or if you need an interpreter. We will provide these at no cost to you.

Favor de notificar la persona listado arriba si necesita información en otro idioma o si necesita un traductor. Se lo proporcionaremos sin costo a usted.


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Iowa DOT ensures nondiscrimination and equal employment in all programs and activities in accordance with Title VI and Title VII of the Civil Rights Act of 1964 and other nondiscrimination statutes. If you need more information or special assistance for persons with disabilities or limited English proficiency, contact Iowa DOT Civil Rights at 515-239-1111 or by email at [email protected].


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