314.5  Extensions in certain cities.
  The agency in control of a secondary road, subject to approval of the council, may eliminate danger at railroad crossings and construct, reconstruct, improve, repair, and maintain any road or street which is an extension of the secondary road within a city. However, this authority does not apply to the extensions of secondary roads located in cities over twenty-five hundred population, where the houses or business houses average less than two hundred feet apart.
  The phrase “subject to the approval of the council” as it appears in this section, shall be construed as authorizing the council to consider said proposed improvement only in its relationship to municipal improvements such as sewers, water lines, establishing grades, change of established street grades, sidewalks and other public improvements. The locations of such road extensions shall be determined by the agency in control of such road or road system.
[C31, 35, §4644-c47; C39, §4644.45, 4686.21; C46, §309.45, 310.21; C50, §308A.14; C54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §314.5]
89 Acts, ch 134, §8