AMES, Iowa – Nov. 14, 2025 – Tell us what you think about the proposed culvert replacement on Iowa 9, approximately 1.4 miles west of County Road K60 in Lyon County.

Map of project area as described in text.

Improvements include replacing the existing twin reinforced concrete box with a single reinforced concrete box.

Construction will take place starting in the late spring of 2027 and will be completed by the end of 2027.

Iowa 9 will be closed during construction and an off-site detour will be utilized. The detour would follow County Road K60 south at the intersection of Iowa 9 and County Road K60 to County Road A34, then east on County Road A34 to U.S. 75, then north to the intersection of Iowa 9 and U.S. 75. 

Share your feedback online by Nov. 24

 Learn about the project and share your input. You will need to provide your name and email before commenting.

For questions about the project or for free translation services, contact:  

Sarah Tracy, P.E., Transportation Planner 
Iowa DOT District 3 Office
6409 Gordon Drive, Sioux City, Iowa 51106
Phone: 855-925-2801  Project Code: 3526
Email: c71612@publicinput.com  

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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 civil.rights@iowadot.us.