Iowa Code Title VIII. Transportation [Chs. 306-330B] § 313.21. Primary extension improvements in cities

1. The department, upon consultation with the council, may construct, reconstruct, improve, and maintain extensions of the primary road system within any city, including the construction, reconstruction, and improvement of storm sewers and electrical traffic control devices reasonably incident and necessary thereto. However, the improvement, exclusive of storm sewers, shall not exceed in width that of the primary road system and the amount of funds expended in any one year shall not exceed thirty-five percent of the primary road construction fund.

2. The department shall consult with the council to consider the proposed improvement in its relationship to municipal improvements such as sewers, water lines, sidewalks, and other public improvements, and the establishment or reestablishment of street grades. The location of the primary road extensions and the location, design, and degree of access control for improvements to them shall be determined by the department.