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Iowa 12 over Indian Creek in Plymouth County

About the Project

The Iowa Department of Transportation is requesting public input for a proposed bridge replacement on Iowa 12 over Indian Creek, 4 miles north of Plymouth County Road C-16.

The project includes replacing the existing bridge with a 213-foot 10-inch x 40-inch three span pretensioned prestressed concrete beam bridge. The existing grade will be raised

Construction of the project is expected to begin in 2021.

Through traffic on Iowa 12 would be detoured during construction using Plymouth County Roads C-12, K-18 and C-16.

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

Comments must be received by April 30, 2019, to be considered. 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