The Iowa Department of Transportation is requesting public input for proposed improvements on Iowa 31 from Cherokee County Road C-66 in Washta to U.S. 59.

The proposed project involves 3” milling and a 6” Portland cement concrete overlay.

Construction of the project is expected to begin in 2022.

Through traffic on Iowa 31 would be detoured using U.S. 59 and Cherokee County Road C-66. For more information, see the website listed below.  

For general information or to make a comment regarding the proposed project, contact Shane Tymkowicz, P.E., assistant district engineer, Iowa DOT District 3 Office, 2800 Gordon Drive, Sioux City, Iowa 51102, phone 712-274-5834 or 712-261-0405, email

Comments must be received by October 21, 2021 to be considered.

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. If you would like to receive future email notifications, or submit a comment or question regarding this project, go to: