Iowa DOT News Release

Public input requested for proposed bridge replacement project on Iowa 175 in Monona County

Posted on: June 15, 2020

AMES, Iowa – June 15, 2020 – The Iowa Department of Transportation is requesting public input for a proposed replacement of the Iowa 175 bridge over Maple River, 1.1 miles west of the east junction with Iowa 141.

The project includes replacing the existing 240’ x 26’ steel beam bridge with a 299’ x 44’ pretensioned prestressed concrete beam bridge. New bridge approaches will be constructed, and new guardrails installed, and shoulders will be paved 20’ beyond the ends of the guardrails.

Construction of the project is expected to begin in 2022.

Through traffic on Iowa 175 would be detoured during construction using Monona County Roads E-34, L-32, and Iowa 141. For more information, see the website listed below.  

For general information or to make a comment regarding the proposed bridge project, contact Shane Tymkowicz, P.E., assistant district engineer, Iowa DOT District 3 Office, 2800 Gordon Drive, Sioux City, Iowa 51102, phone 712-276-1451 or 800-284-4368, email

Comments must be received by June 25, 2020 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


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. If you need accommodations because of a disability to access the Iowa Department of Transportation’s services, contact the agency’s affirmative action officer at 800-262-0003.

Iowa highway in the evening