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Iowa 78, Louisa County

About the Project

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Project description

The Iowa Department of Transportation is requesting public input on the proposed bridge replacement of the Iowa 78 bridge over Honey Creek, 1.8 miles west of U.S. 61 in Louisa County, and the project detour.

The proposed project involves removing the existing 151-foot long x 26-foot wide steel beam bridge and replacing it with a triple 12-foot wide x 12-foot high reinforced concrete box culvert. The proposed project will also involve some clearing and grubbing, grading and backfill, installing an inlet splash basin and revetment for erosion control, adding new 9-inch PCC pavement for the bridge approaches, and temporary or permanent relocation of utilities. Construction would occur calendar year 2021.

Through traffic on Iowa 78 would be detoured during construction using Louisa County Road H-16/M Avenue (south and north), Louisa County Rd H-16/40th Street (east and west) to U.S. 61 (south and north). It is anticipated the detour will be in place for the majority of the construction. Local traffic will have access to Iowa 78 except for the lanes crossing the bridge over Honey Creek (mile marker 56.90) during the bridge closure.

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Project contact

Hector Torres-Cacho, transportation planner
Iowa DOT District 5 Office
205 E. 227th Street
Fairfield, Iowa 52556

Deadline for receipt of comments is March 3, 2020; however, all correspondence received after this date will be included in the project files and reviewed as the project is developed. To submit a comment online about this project, go to:

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
Iowa bridge