AMES, Iowa – March 4, 2026 – Tell us what you think about the proposed bridge replacement on U.S. 18 near Spencer in Clay County.

Improvements include replacing the existing bridge with a new longer and wider bridge.

Construction will take place starting in the spring of 2028 and be completed by the end of 2028.

U.S. 18 will be closed during construction and an offsite detour will be utilized.  The detour will likely use the following routes:

  • County Road M44 south to 360th Street
  • East to U.S. 71
  • Continue east to the junction of U.S. 71 and U.S. 18

Share Your Feedback by March 16

Learn about the project and share your feedback.  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, use the extension 5119 
Email: b34433@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.