Colorado Revised Statutes Title 43. Transportation § 43-2-136. Department makes rules for rating

(a) Priorities for construction on the state highway system as designated by this part 1 shall be determined by the transportation commission not later than May thirtieth of the year preceding the year during which said construction is to be undertaken.

(b) The transportation commission in establishing priorities shall make use of a sufficiency rating which shall take into consideration traffic volume, composition of traffic, width of the roadbed, pavement type, and such other construction factors as it deems necessary in order to adequately compare existing highway facilities with the known desirable standards for highways which should apply.