Temporary route pending construction of new highway—Streets, roads not to be maintained as.

Unless otherwise provided, whenever by statute a new highway or extension is added to the state highway system, no existing city street or county road may be maintained or improved by the department as a temporary route of such new highway or extension pending the construction of the new highway or extension on the location adopted by the department.[ 1984 c 7 s 90; 1973 1st ex.s. c 151 s 12; 1965 ex.s. c 170 s 34.]