Iowa Code § 313.29: Detours located in city.

When the temporary primary road detour or temporary primary road haul road, or any portion thereof, is located within the corporate limits of a city, then as to the portion so located, the provisions of section 313.28 as to consultation, designation, restoration, and payment by the department shall apply in like manner to the benefit of the city. Credits under section 313.28 shall be made to the general fund of the city. A city may designate the county engineer or city engineer to inspect such street so used jointly with the representative of the department.