Traffic-Control Devices; Placement And Maintenance; Restrictions; County Road Commission, Permission, Costs - Mich. Comp. Laws Section 257.609

Sec. 609.

(a) The state highway commission shall place or require to be placed and maintain or require to be maintained such traffic-control devices, conforming to said manual and specifications, upon all state highways as it shall deem necessary to indicate and to carry out the provisions of this chapter or to regulate, warn or guide traffic.

(b) No local authority shall place or maintain any traffic-control device upon any trunk line highway under the jurisdiction of the state highway commissioner except by the latter's permission or upon any county road without the permission of the county road commission having jurisdiction thereof. With the approval of the department of state highways, the board of county road commissioners of any county, at its option, may install and maintain uniform traffic-control devices according to the standards promulgated by the department of state highways and as required by the commission on trunk line highways, if the cost would be less than that estimated by the state highway commission, billing the state highway commission for its share of the cost of installation.