In CUHL counties, the chief administrative officer is required to prepare and submit to the county legislative body and to the State Department of Transportation an annual work program to be financed under the state aid highway system program.  The priorities for proposed work should consider the degree of deficiencies in the structural condition, capacity, and safety of existing roadway, traffic volume, and the desirable level of service necessary for schools, religious institutions, industry, recreational facilities, and other major uses.  T.C.A. § 54-7-111.