321.255 Local traffic-control devices. Local authorities in their respective jurisdiction shall place and maintain such traffic-control devices upon highways under their jurisdiction as they may deem necessary to indicate and to carry out the provisions of this chapter or local traffic ordinances or to regulate, warn, or guide traffic. All such traffic-control devices hereafter erected shall conform to the state manual and specifications. [C39, §5019.04; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §321.255] Referred to in §331.362
Iowa Legal Code