Ind. Code § 8-23-12-3

Sec. 3. The department shall cause a periodic reinspection of the system of roads under its jurisdiction to be made in order to revise its estimates of future needs to conform to the actual physical and service condition of the highways and economic needs of the areas served by the highways from time to time. The long-range program, in addition to the engineering information required by this chapter, must contain other information that will enable the public to have the most complete understanding of the needs of the state highway system.