31-6-1      Cooperation of department in federal construction program.
31-6-2      Cooperation of department in selection of system.
31-6-3      Resolution of county proposing project--Preliminary survey, plans, and estimates.
31-6-4      Federal approval of project--Call for bids by department--Contract not let until payment provided by county.
31-6-5      Jurisdiction of highway on which project approved or constructed.
31-6-6      Nonliability of state for project--Department reimbursed by county.
31-6-7      Responsibility for maintenance.
31-6-8      Allocation of federal funds for construction of roads requested by commissioners.
31-6-9      Transportation Commission to match funds.