1.    Whenever a highway will be seriously damaged or destroyed by reason of deterioration, rain, snow, or other climatic conditions unless the use of vehicles is    prohibited or the weight of the vehicle thereon is limited, the director or employees authorized by the director by an order, and local authorities by ordinance or resolution, may prohibit the operation of vehicles upon such highway or may impose weight restrictions on vehicles. The director or employees making the order and local authorities enacting the ordinance or resolution shall erect or cause to be erected and maintained signs designating the provisions of the order, ordinance, or resolution. The signs must be erected and maintained at each end of the portion of highway affected, and the order, ordinance, or resolution is not effective until the signs are erected and maintained. The operation of trucks or other commercial vehicles or limitations as to the weight of vehicles on designated highways may be prohibited or limited in the same manner.

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2.    In instances of inclement weather, as determined by the local authorities, changes may be made to existing posted restrictions on a portion of a highway if the local authority:

a.    Gives public notice of the change in the posted restrictions on any portion of a highway by publishing the inclement weather restriction on the local authority’s website and a uniform county permit system or similar permit system within one hour after the initial determination of inclement weather; and

b.    Within five days of the first date of inclement weather, erects and maintains a sign at each end of the portion of the highway affected by the inclement weather restriction.